0033807: Documentation - Fix various typos found in codebase

adm/cmake/3rdparty_macro.cmake

@@ -19,7 +19,7 @@ macro (THIRDPARTY_PRODUCT PRODUCT_NAME HEADER_NAME LIBRARY_CSF_NAME LIBRARY_NAME
   # include occt macros. compiler_bitness, os_wiht_bit, compiler
   OCCT_INCLUDE_CMAKE_FILE ("adm/cmake/occt_macros")
 
-  # specify product folder in connectin with 3RDPARTY_DIR
+  # specify product folder in connection with 3RDPARTY_DIR
   if (3RDPARTY_DIR AND EXISTS "${3RDPARTY_DIR}")
     #CHECK_PATH_FOR_CONSISTENCY (3RDPARTY_DIR 3RDPARTY_${PRODUCT_NAME}_DIR PATH "The directory containing ${PRODUCT_NAME}")
 

adm/cmake/bison.cmake

@@ -12,7 +12,7 @@ if (NOT BISON_EXECUTABLE OR NOT EXISTS "${BISON_EXECUTABLE}")
 endif()
 
 # Add paths to 3rdparty subfolders containing name "bison" to CMAKE_PROGRAM_PATH variable to make
-# these paths searhed by find_package
+# these paths searched by find_package
 if (3RDPARTY_DIR)
   file (GLOB BISON_PATHS LIST_DIRECTORIES true "${3RDPARTY_DIR}/*bison*/")
   foreach (candidate_path ${BISON_PATHS})

adm/cmake/cotire.cmake

@@ -2580,7 +2580,7 @@ function (cotire_setup_target_pch_usage _languages _target _wholeTarget)
 			message (STATUS "add_custom_command: TARGET ${_target} PRE_BUILD ${_cmds}")
 		endif()
 		# because CMake PRE_BUILD command does not support dependencies,
-		# we check dependencies explicity in cotire script mode when the pre-build action is run
+		# we check dependencies explicitly in cotire script mode when the pre-build action is run
 		add_custom_command(
 			TARGET "${_target}"
 			PRE_BUILD ${_cmds}
@@ -2637,7 +2637,7 @@ function (cotire_setup_unity_generation_commands _language _target _targetScript
 		endif()
 		if (WIN32 AND CMAKE_${_language}_COMPILER_ID MATCHES "MSVC|Intel")
 			# unity file compilation results in potentially huge object file,
-			# thus use /bigobj by default unter cl.exe and Windows Intel
+			# thus use /bigobj by default under cl.exe and Windows Intel
 			set_property (SOURCE "${_unityFile}" APPEND_STRING PROPERTY COMPILE_FLAGS "/bigobj")
 		endif()
 		cotire_set_cmd_to_prologue(_unityCmd)

adm/cmake/flex.cmake

@@ -15,7 +15,7 @@ if (NOT FLEX_INCLUDE_DIR OR NOT EXISTS "${FLEX_INCLUDE_DIR}")
 endif()
 
 # Add paths to 3rdparty subfolders containing name "flex" to CMAKE_PROGRAM_PATH and 
-# CMAKE_INCLUDE_PATH variables to make these paths searhed by find_package
+# CMAKE_INCLUDE_PATH variables to make these paths searched by find_package
 if (3RDPARTY_DIR)
   file (GLOB FLEX_PATHS LIST_DIRECTORIES true "${3RDPARTY_DIR}/*flex*")
   foreach (candidate_path ${FLEX_PATHS})

adm/cmake/freetype.cmake

@@ -14,7 +14,7 @@ OCCT_INCLUDE_CMAKE_FILE ("adm/cmake/occt_macros")
 OCCT_MAKE_COMPILER_SHORT_NAME()
 OCCT_MAKE_COMPILER_BITNESS()
 
-# specify freetype folder in connectin with 3RDPARTY_DIR
+# specify freetype folder in connection with 3RDPARTY_DIR
 if (3RDPARTY_DIR AND EXISTS "${3RDPARTY_DIR}")
   #CHECK_PATH_FOR_CONSISTENCY (3RDPARTY_DIR 3RDPARTY_FREETYPE_DIR PATH "The directory containing freetype")
 

adm/cmake/tbb.cmake

@@ -27,7 +27,7 @@ if (WIN32)
 
   # Below, we have correct 3RDPARTY_DIR.
 
-  # Initialize TBB folder in connectin with 3RDPARTY_DIR.
+  # Initialize TBB folder in connection with 3RDPARTY_DIR.
   if (("${3RDPARTY_TBB_DIR}" STREQUAL "") OR (NOT EXISTS "${3RDPARTY_TBB_DIR}"))
     FIND_PRODUCT_DIR ("${3RDPARTY_DIR}" TBB TBB_DIR_NAME)
     if (TBB_DIR_NAME)
@@ -44,7 +44,7 @@ if (WIN32)
       REQUIRED
       CONFIG)
 
-    # Achive include directory
+    # Archive include directory
     get_target_property (TBB_INCLUDE_DIR TBB::tbb INTERFACE_INCLUDE_DIRECTORIES)
     if (NOT DEFINED 3RDPARTY_TBB_INCLUDE_DIR)
       set (3RDPARTY_TBB_INCLUDE_DIR "" CACHE PATH "The directory containing headers of the TBB")
@@ -65,7 +65,7 @@ if (WIN32)
       string(TOLOWER "${LIB}" LIB_LOWER)
       string(TOUPPER "${LIB}" LIB_UPPER)
 
-      # Achive *.lib files and directory containing it.
+      # Archive *.lib files and directory containing it.
       get_target_property (TBB_LIB_FILE "TBB::${LIB_LOWER}" IMPORTED_IMPLIB_${CHOSEN_IMPORT_CONF})
       # Reserve cache variable for *.lib.
       if (NOT DEFINED 3RDPARTY_${LIB_UPPER}_LIBRARY)
@@ -92,7 +92,7 @@ if (WIN32)
         list (APPEND 3RDPARTY_NO_LIBS 3RDPARTY_${LIB_UPPER}_LIBRARY_DIR)
       endif()
 
-      # Achive *.dll files and directory containing it.
+      # Archive *.dll files and directory containing it.
       get_target_property (TBB_DLL_FILE "TBB::${LIB_LOWER}" IMPORTED_LOCATION_${CHOSEN_IMPORT_CONF})
       # Reserve cache variable for *.dll.
       if (NOT DEFINED 3RDPARTY_${LIB_UPPER}_DLL)
@@ -175,9 +175,9 @@ else ()
     REQUIRED
     CONFIG)
   endif()
-  # TBB has been configured (in other case FATAL_ERROR occures).
+  # TBB has been configured (in other case FATAL_ERROR occurs).
 
-  # Achive include directory.
+  # Archive include directory.
   get_target_property (TBB_INCLUDE_DIR TBB::tbb INTERFACE_INCLUDE_DIRECTORIES)
   if (NOT DEFINED 3RDPARTY_TBB_INCLUDE_DIR)
     set (3RDPARTY_TBB_INCLUDE_DIR "" CACHE PATH "The directory containing headers of the TBB")
@@ -198,7 +198,7 @@ else ()
     string(TOLOWER "${LIB}" LIB_LOWER)
     string(TOUPPER "${LIB}" LIB_UPPER)
 
-    # Achive *.so files and directory containing it.
+    # Archive *.so files and directory containing it.
     get_target_property (TBB_SO_FILE "TBB::${LIB_LOWER}" IMPORTED_LOCATION_${CHOSEN_IMPORT_CONF})
     # Reserve cache variable for *.so.
     if (NOT DEFINED 3RDPARTY_${LIB_UPPER}_LIBRARY)

adm/upgrade.tcl

@@ -405,7 +405,7 @@ proc Rename {thePath theExtensions theNewNames theCheckMode} {
   }
 }
 
-# @thePackagePath eather file or folder. If it is a folder, 
+# @thePackagePath either file or folder. If it is a folder, 
 # all files with @theHeaderExtensions are processed.
 # "fwd.tcollection" section from upgrade.ini file is used to find out what 
 # classes have been converted and, thus, what forward declarations can be replaced

dox/introduction/introduction.md

@@ -370,7 +370,7 @@ https://dev.opencascade.org/resources/download/3rd-party-components
 | Flex 2.6.4+ and Bison 3.7.1+ | https://sourceforge.net/projects/winflexbison/ | Data Exchange | Updating STEP and ExprIntrp parsers |
 | RapidJSON 1.1+ | https://rapidjson.org/ | Data Exchange | Reading glTF files |
 | Draco 1.4.1+ | https://github.com/google/draco | Data Exchange | Reading compressed glTF files |
-| Tcl/Tk 8.6.3+ | https://www.tcl.tk/software/tcltk/download.html | DRAW Test Harness | Tcl interpretor in Draw module |
+| Tcl/Tk 8.6.3+ | https://www.tcl.tk/software/tcltk/download.html | DRAW Test Harness | Tcl interpreter in Draw module |
 | Qt 5.3.2+ | https://www.qt.io/download/ | Inspector and Samples | Inspector Qt samples and  |
 | Doxygen 1.8.5+ | https://www.doxygen.nl/download.html | Documentation | (Re)generating documentation |
 | Graphviz 2.38+ | https://graphviz.org/ | Documentation | Generating dependency graphs |

dox/user_guides/ocaf/ocaf.md

@@ -763,7 +763,7 @@ filter2->AddSkipped("TDataStd_Integer");
 app->Open("example.cbf", doc, filter2); 
 ~~~~
 
-*PCDM_ReaderFilter::AppendMode_Protect* means that if the loading algorithm finds already existing attribute in the document, it will not be overwritten by attibute from the loading file. If it is needed to
+*PCDM_ReaderFilter::AppendMode_Protect* means that if the loading algorithm finds already existing attribute in the document, it will not be overwritten by attribute from the loading file. If it is needed to
 substitute the existing attributes, the reading mode *PCDM_ReaderFilter::AppendMode_Overwrite* must be used instead.
 
 *AddRead* and *AddSkipped* methods for attributes should not be used in one filter. If it is so, *AddSkipped* attributes are ignored during the read.
@@ -971,7 +971,7 @@ The "correct" history of a used modeling operation serves the basis of naming me
 | Closed wire | Edges | All edges |
 | Opened wire |	Edges and ending vertexes | All edges plus ending vertexes of the wire |
 | Edge | Vertexes |	Two vertexes are expected |
-| Compound or CompSolid	| To be used consequentially the above declared rule applied to all sub-shapes of the first level | Compound/CompSolid to be explored level by level until any the mentioned above types will be met | 
+| Compound or CompSolid	| To be used consequently the above declared rule applied to all sub-shapes of the first level | Compound/CompSolid to be explored level by level until any the mentioned above types will be met | 
 
 The history should return (and track) only elementary types of sub-shapes, i.e. Faces, Edges and Vertexes, while other so-called aggregation types: Compounds, Shells, Wires, are calculated by Selection mechanism automatically.
 

samples/glfw/adm/cmake/FindOpenCASCADE.cmake

@@ -119,7 +119,7 @@ if (OpenCASCADE_INCLUDE_DIR_FOUND AND OpenCASCADE_LIBRARY_DIR_FOUND)
   set (OpenCASCADE_INSTALL_PREFIX ${OpenCASCADE_DIR})
 
   # Define OCCT toolkits so that CMake can put absolute paths to linker;
-  # the library existance is not checked here, since modules can be disabled.
+  # the library existence is not checked here, since modules can be disabled.
   foreach (aLibIter ${OpenCASCADE_TKLIST})
     add_library (${aLibIter} SHARED IMPORTED)
 

src/APIHeaderSection/APIHeaderSection_MakeHeader.cxx

@@ -31,7 +31,7 @@
 #include <TCollection_HAsciiString.hxx>
 
 #include <stdio.h>
-// This is a generic header for any STEP sheme
+// This is a generic header for any STEP scheme
 static Handle(TCollection_HAsciiString) nulstr;
 static Handle(Interface_HArray1OfHAsciiString) nularr;
 

src/Adaptor3d/Adaptor3d_CurveOnSurface.cxx

@@ -146,7 +146,7 @@ static void Hunt(const TColStd_Array1OfReal& Arr,
 		 const Standard_Real Coord,
 		 Standard_Integer& Iloc)
 {//Warning: Hunt is used to find number of knot which equals coordinate component,
-  //        when coordinate component definitly equals a knot only.
+  //        when coordinate component definitely equals a knot only.
   Standard_Real Tol=Precision::PConfusion()/10;
   Standard_Integer i=1; 
   while((i <= Arr.Upper()) && (Abs(Coord - Arr(i)) > Tol)){
@@ -638,7 +638,7 @@ static void Locate2Coord(const Standard_Integer Index,
   if((DComp > 0)&&(Abs(DComp)>Tol)) {  
     Hunt(Arr,Comp,N);
     if (N >= NUp){
-      //limit case: Hunt() cought upper knot. Take the last span. 
+      //limit case: Hunt() caught upper knot. Take the last span. 
       N = NUp - 1;
     }
     if(Index==1) {  Tmp1=BSplS->UKnot(N);
@@ -659,7 +659,7 @@ static void Locate2Coord(const Standard_Integer Index,
     if((DComp < 0)&&(Abs(DComp)>Tol)){      
      Hunt(Arr,Comp,N);
      if (N <= NLo) {
-       //limit case: Hunt() cought lower knot. Take the first span.
+       //limit case: Hunt() caught lower knot. Take the first span.
        N = NLo + 1;
      }
      if(Index==1) {	  Tmp1=BSplS->UKnot(N-1);

src/Adaptor3d/Adaptor3d_TopolTool.cxx

@@ -559,7 +559,7 @@ Standard_Boolean Adaptor3d_TopolTool::Identical
 #include <gp_Dir.hxx>
 #include <gp_Vec.hxx>
 
-#define myMinPnts 4 //Absolut possible minimum of sample points
+#define myMinPnts 4 //Absolute possible minimum of sample points
                     //Restriction of IntPolyh
 
 

src/Approx/Approx_SweepFunction.hxx

@@ -68,7 +68,7 @@ public:
   //! get the Multplicities of the section
   Standard_EXPORT virtual void Mults (TColStd_Array1OfInteger& TMults) const = 0;
   
-  //! Returns if the sections are rationnal or not
+  //! Returns if the sections are rational or not
   Standard_EXPORT virtual Standard_Boolean IsRational() const = 0;
   
   //! Returns  the number  of  intervals for  continuity

src/Aspect/Aspect_DisplayConnection.hxx

@@ -27,7 +27,7 @@ struct Aspect_XVisualInfo;
 //! This class creates and provides connection with X server.
 //! Raises exception if can not connect to X server.
 //! On Windows and Mac OS X (in case when Cocoa used) platforms this class does nothing.
-//! WARRNING: Do not close display connection manually!
+//! WARNING: Do not close display connection manually!
 class Aspect_DisplayConnection : public Standard_Transient
 {
   DEFINE_STANDARD_RTTIEXT(Aspect_DisplayConnection, Standard_Transient)

src/BRepAlgo/BRepAlgo_FaceRestrictor.hxx

@@ -51,10 +51,10 @@ public:
   //! Warning:
   //! The Wires must be closed.
   //!
-  //! The edges of <W> can be modified if they  have not pcurves
+  //! The edges of <W> can be modified if they don't have
-  //! on the surface <S>  of <F>. In this  case
+  //! pcurves on the surface <S> of <F>. In this case
   //! if <Proj> is false the first pcurve of the edge
-  //! is positionned on <S>.
+  //! is positioned on <S>.
   //! if <Proj> is True, the Pcurve On <S> is the
   //! projection of the curve 3d on <F>.
   Standard_EXPORT void Add (TopoDS_Wire& W);

src/BRepAlgo/BRepAlgo_Loop.hxx

@@ -86,13 +86,13 @@ public:
   
   Standard_EXPORT void VerticesForSubstitute (TopTools_DataMapOfShapeShape& VerVerMap);
 
-  //! Set maximal tolerance used for comparing distaces between vertices. 
+  //! Set maximal tolerance used for comparing distances between vertices. 
   void SetTolConf(const Standard_Real theTolConf)
   {
     myTolConf = theTolConf;
   }
 
-  //! Get maximal tolerance used for comparing distaces between vertices. 
+  //! Get maximal tolerance used for comparing distances between vertices. 
   Standard_Real GetTolConf() const
   {
     return myTolConf;

src/BRepBlend/BRepBlend_AppFuncRoot.cxx

@@ -49,7 +49,7 @@ BRepBlend_AppFuncRoot::BRepBlend_AppFuncRoot(Handle(BRepBlend_Line)& Line,
   //  Tables
   Func.GetShape( NbPoles, NbKnots, Degree, NbPoles2d);
   
-  // Calculation of BaryCentre (rationnal case).
+  // Calculation of BaryCentre (rational case).
   if (Func.IsRational()) {
     Standard_Real Xmax =-1.e100, Xmin = 1.e100, 
     Ymax =-1.e100, Ymin = 1.e100, 

src/BRepBlend/BRepBlend_AppFuncRoot.hxx

@@ -69,7 +69,7 @@ public:
   //! get the Multplicities of the section
   Standard_EXPORT virtual void Mults (TColStd_Array1OfInteger& TMults) const Standard_OVERRIDE;
   
-  //! Returns if the section is rationnal or not
+  //! Returns if the section is rational or not
   Standard_EXPORT virtual Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns  the number  of  intervals for  continuity
@@ -95,7 +95,7 @@ public:
   Standard_EXPORT virtual void Resolution (const Standard_Integer Index, const Standard_Real Tol, Standard_Real& TolU, Standard_Real& TolV) const Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary (in radian)
   //! SurfTol error inside the surface.

src/BRepBlend/BRepBlend_RstRstConstRad.hxx

@@ -139,7 +139,7 @@ public:
   
   Standard_EXPORT void Section (const Standard_Real Param, const Standard_Real U, const Standard_Real V, Standard_Real& Pdeb, Standard_Real& Pfin, gp_Circ& C);
   
-  //! Returns  if the section is rationnal
+  //! Returns  if the section is rational
   Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns the length of the maximum section
@@ -162,7 +162,7 @@ public:
   Standard_EXPORT void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/BRepBlend/BRepBlend_RstRstEvolRad.hxx

@@ -140,7 +140,7 @@ public:
   
   Standard_EXPORT void Section (const Standard_Real Param, const Standard_Real U, const Standard_Real V, Standard_Real& Pdeb, Standard_Real& Pfin, gp_Circ& C);
   
-  //! Returns  if the section is rationnal
+  //! Returns  if the section is rational
   Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns the length of the maximum section
@@ -163,7 +163,7 @@ public:
   Standard_EXPORT void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/BRepBlend/BRepBlend_SurfRstConstRad.hxx

@@ -133,7 +133,7 @@ public:
   
   Standard_EXPORT void Section (const Standard_Real Param, const Standard_Real U, const Standard_Real V, const Standard_Real W, Standard_Real& Pdeb, Standard_Real& Pfin, gp_Circ& C);
   
-  //! Returns  if the section is rationnal
+  //! Returns  if the section is rational
   Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns the length of the maximum section
@@ -156,7 +156,7 @@ public:
   Standard_EXPORT void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/BRepBlend/BRepBlend_SurfRstEvolRad.hxx

@@ -132,7 +132,7 @@ public:
   
   Standard_EXPORT void Section (const Standard_Real Param, const Standard_Real U, const Standard_Real V, const Standard_Real W, Standard_Real& Pdeb, Standard_Real& Pfin, gp_Circ& C);
   
-  //! Returns  if the section is rationnal
+  //! Returns  if the section is rational
   Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns the length of the maximum section
@@ -155,7 +155,7 @@ public:
   Standard_EXPORT void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/BRepClass/BRepClass_FaceExplorer.cxx

@@ -202,7 +202,7 @@ Standard_Boolean BRepClass_FaceExplorer::OtherSegment(const gp_Pnt2d& P,
               // is tangent to the edge curve. This condition is bad for classification.
               // Therefore try to go to another point in the hope that there will be 
               // no tangent. If there tangent is preserved then leave the last point in 
-              // order to get this edge chanse to participate in classification.
+              // order to get this edge chance to participate in classification.
               if (myCurEdgePar + Probing_Step < Probing_End)
                 continue;
             }

src/BRepFill/BRepFill_Draft.cxx

@@ -541,7 +541,7 @@ static Standard_Boolean GoodOrientation(const Bnd_Box& B,
 
   if (!Surf.IsNull()) { // Add the face at end
 
-  // Waiting the use of traces & retriction in BRepFill_Sweep
+  // Waiting the use of traces & restriction in BRepFill_Sweep
   // Make Fuse.
     BRepLib_MakeFace MkF;
     MkF.Init(Surf, Standard_True, Precision::Confusion());

src/BRepFill/BRepFill_Evolved.cxx

@@ -3144,7 +3144,7 @@ void CutEdgeProf (const TopoDS_Edge&                  E,
 
 //=======================================================================
 //function : CutEdge
-//purpose  : Cut an edge at thw extrema of curves and at points of inflexion.
+//purpose  : Cut an edge at the extrema of curves and at points of inflexion.
 //           Closed circles are also cut in two.
 //           If <Cuts> are empty the edge is not modified.
 //           The first and the last vertex of the original edge 

src/BRepFill/BRepFill_LocationLaw.hxx

@@ -122,18 +122,18 @@ public:
 protected:
 
   
-  //! Initialize all the fields, this methode have to
+  //! Initialize all the fields, this methode has to
   //! be called by the constructors of Inherited class.
   Standard_EXPORT void Init (const TopoDS_Wire& Path);
   
-  //! To preseve if possible  the Tangent in transformations
+  //! To preserve if possible the Tangent in transformations
   //! It is the default mode.
   Standard_EXPORT void TangentIsMain();
   
-  //! To preseve if possible the Normal in transformations
+  //! To preserve if possible the Normal in transformations
   Standard_EXPORT void NormalIsMain();
   
-  //! To preseve if possible the BiNormal in transformations
+  //! To preserve if possible the BiNormal in transformations
   Standard_EXPORT void BiNormalIsMain();
 
   TopoDS_Wire myPath;

src/BRepFill/BRepFill_Pipe.cxx

@@ -501,7 +501,7 @@ TopoDS_Shape BRepFill_Pipe::Section(const TopoDS_Vertex& VSpine) const
 
 TopoDS_Wire BRepFill_Pipe::PipeLine(const gp_Pnt& Point)
 {
- // Postioning 
+ // Positioning 
  gp_Pnt P;
  P = Point;
  P.Transform(myTrsf);

src/BRepFill/BRepFill_PipeShell.cxx

@@ -1155,7 +1155,7 @@ void BRepFill_PipeShell::Generated(const TopoDS_Shape&   theShape,
 
 //=======================================================================
 //function : Place
-//purpose  : Implement a Section in the local refernce frame
+//purpose  : Implement a Section in the local reference frame
 //           and return its parameter on the trajectory
 //=======================================================================
 void BRepFill_PipeShell::Place(const BRepFill_Section& Sec,

src/BRepFill/BRepFill_PipeShell.hxx

@@ -48,7 +48,7 @@ class BRepFill_PipeShell;
 DEFINE_STANDARD_HANDLE(BRepFill_PipeShell, Standard_Transient)
 
 //! Computes a topological shell using some wires
-//! (spines and profiles) and diplacement option
+//! (spines and profiles) and displacement option
 //! Perform general sweeping construction
 class BRepFill_PipeShell : public Standard_Transient
 {
@@ -116,7 +116,7 @@ public:
   //! to be C0.
   //! Give section to sweep.
   //! Possibilities are :
-  //! - Give one or sevral profile
+  //! - Give one or several profile
   //! - Give one profile and an homotetic law.
   //! - Automatic compute of correspondence between profile, and section on the sweeped shape
   //! - correspondence between profile, and section on the sweeped shape defined by a vertex of the spine
@@ -153,7 +153,7 @@ public:
   Standard_EXPORT void SetTransition (const BRepFill_TransitionStyle Mode = BRepFill_Modified, const Standard_Real Angmin = 1.0e-2, const Standard_Real Angmax = 6.0);
   
   //! Perform simulation of the sweep :
-  //! Somes Section are returned.
+  //! Some Section are returned.
   Standard_EXPORT void Simulate (const Standard_Integer NumberOfSection, TopTools_ListOfShape& Sections);
   
   //! Builds the resulting shape (redefined from MakeShape).

src/BRepFill/BRepFill_Sweep.cxx

@@ -2890,7 +2890,7 @@ BRepFill_Sweep::BRepFill_Sweep(const Handle(BRepFill_SectionLaw)& Section,
 
 //=======================================================================
 //function : Build
-//purpose  : Construt the result of sweeping
+//purpose  : Construct the result of sweeping
 //======================================================================
 void BRepFill_Sweep::Build(TopTools_MapOfShape& ReversedEdges,
                            BRepFill_DataMapOfShapeHArray2OfShape& Tapes,

src/BRepFill/BRepFill_Sweep.hxx

@@ -64,7 +64,7 @@ public:
   //! Tolerance  To controle Corner management.
   //!
   //! If the discontinuity is lesser than <AngleMin> in radian The
-  //! Transition Performed will be alway "Modified"
+  //! Transition Performed will be always "Modified"
   Standard_EXPORT void SetAngularControl (const Standard_Real AngleMin = 0.01, const Standard_Real AngleMax = 6.0);
   
   //! Set the flag that indicates attempt to approximate
@@ -78,7 +78,7 @@ public:
   //! - GeomFill_Section : The composed Function Location X Section
   //! is directly approximated.
   //! - GeomFill_Location : The location law is approximated, and the
-  //! SweepSurface is bulid algebric composition
+  //! SweepSurface builds an algebraic composition
   //! of approximated location law and section law
   //! This option is Ok, if Section.Surface() methode
   //! is effective.

src/BRepOffsetAPI/BRepOffsetAPI_FindContigousEdges.hxx

@@ -37,7 +37,7 @@ class TopoDS_Edge;
 //! - define if necessary a new tolerance
 //! - set if necessary analysis of degenerated shapes off
 //! - add shapes to be controlled -> Add
-//! - compute -> Perfom
+//! - compute -> Perform
 //! - output couples of connected edges for control
 //! - output the problems if any
 class BRepOffsetAPI_FindContigousEdges 

src/BRepOffsetAPI/BRepOffsetAPI_MakeOffset.cxx

@@ -166,7 +166,7 @@ void BRepOffsetAPI_MakeOffset::Init(const GeomAbs_JoinType Join,
 //=======================================================================
 //function : SetApprox
 //purpose  : Set approximation flag
-//           for convertion input contours into ones consisting of
+//           for conversion input contours into ones consisting of
 //           2D circular arcs and 2D linear segments only
 //=======================================================================
 

src/BRepOffsetAPI/BRepOffsetAPI_MakeOffset.hxx

@@ -64,7 +64,7 @@ public:
   Standard_EXPORT void Init (const GeomAbs_JoinType Join = GeomAbs_Arc, const Standard_Boolean IsOpenResult = Standard_False);
   
   //! Set approximation flag
-  //! for convertion input contours into ones consisting of
+  //! for conversion input contours into ones consisting of
   //! 2D circular arcs and 2D linear segments only.
   Standard_EXPORT void SetApprox (const Standard_Boolean ToApprox);
   

src/BRepOffsetAPI/BRepOffsetAPI_MakeOffsetShape.hxx

@@ -114,7 +114,7 @@ public:
                                      const Standard_Boolean RemoveIntEdges = Standard_False,
                                      const Message_ProgressRange& theRange = Message_ProgressRange());
 
-  //! Returns instance of the unrelying intersection / arc algorithm.
+  //! Returns instance of the underlying intersection / arc algorithm.
   Standard_EXPORT virtual const BRepOffset_MakeOffset& MakeOffset() const;
 
   //! Does nothing.

src/BRepOffsetAPI/BRepOffsetAPI_MakePipeShell.hxx

@@ -112,7 +112,7 @@ public:
   //! along the path.
   //! Give section to sweep.
   //! Possibilities are :
-  //! - Give one or sevral section
+  //! - Give one or several section
   //! - Give one profile and an homotetic law.
   //! - Automatic compute of correspondence between spine, and section
   //! on the sweeped shape

src/BRepTest/BRepTest_Fillet2DCommands.cxx

@@ -306,7 +306,7 @@ static Standard_Integer fillet2d(Draw_Interpretor& di, Standard_Integer n, const
   Standard_Boolean status = algo.Perform(radius);
   if (!status)
   {
-    di << "Error: the algrithm failed.";
+    di << "Error: the algorithm failed.";
     return 1;
   }
 
@@ -326,7 +326,7 @@ static Standard_Integer fillet2d(Draw_Interpretor& di, Standard_Integer n, const
   TopoDS_Edge fillet = algo.Result(common, M1, M2);
   if (fillet.IsNull())
   {
-    di << "Error: the algrithm produced no result.";
+    di << "Error: the algorithm produced no result.";
     return 1;
   }
 
@@ -403,7 +403,7 @@ static Standard_Integer chamfer2d(Draw_Interpretor& di, Standard_Integer n, cons
   TopoDS_Edge chamfer = algo.Result(M1, M2, length1, length2);
   if (chamfer.IsNull())
   {
-    di << "Error: the algrithm produced no result.";
+    di << "Error: the algorithm produced no result.";
     return 1;
   }
 

src/BSplCLib/BSplCLib_CurveComputation.gxx

@@ -1263,7 +1263,7 @@ void BSplCLib::MovePoint (const Standard_Real            U,
     }
   }
   
-  // find a kk2 if symetriy
+  // find a kk2 if symmetry
   kk2 = kk1;
   i = kk1 - FirstNonZeroBsplineIndex + 2;
   if ((kk1+1) <= LastIndex) {

src/BSplSLib/BSplSLib.cxx

@@ -2845,7 +2845,7 @@ void BSplSLib::MovePoint (const Standard_Real            U,
     }
   }
 
-  // find a ukk2 if symetriy
+  // find a ukk2 if symmetry
   ukk2 = ukk1;
   i = ukk1 - UFirstNonZeroBsplineIndex + 2;
   if ((ukk1+1) <= ULastIndex) {
@@ -2871,7 +2871,7 @@ void BSplSLib::MovePoint (const Standard_Real            U,
     }
   }
 
-  // find a vkk2 if symetriy
+  // find a vkk2 if symmetry
   vkk2 = vkk1;
   j = vkk1 - VFirstNonZeroBsplineIndex + 2;
   if ((vkk1+1) <= VLastIndex) {

src/Blend/Blend_AppFunction.hxx

@@ -115,7 +115,7 @@ public:
   //! Returns the point on the first support.
   Standard_EXPORT virtual const gp_Pnt& Pnt2() const = 0;
   
-  //! Returns  if the section is rationnal
+  //! Returns  if the section is rational
   Standard_EXPORT virtual Standard_Boolean IsRational() const = 0;
   
   //! Returns the length of the maximum section
@@ -145,7 +145,7 @@ public:
                                          Standard_Integer& NbPoles2d) = 0;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/Blend/Blend_CSFunction.hxx

@@ -148,7 +148,7 @@ public:
   Standard_EXPORT virtual void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE = 0;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/Blend/Blend_RstRstFunction.hxx

@@ -156,7 +156,7 @@ public:
   //! but  the  values  calculated can  be  senseless.
   Standard_EXPORT virtual Blend_DecrochStatus Decroch (const math_Vector& Sol, gp_Vec& NRst1, gp_Vec& TgRst1, gp_Vec& NRst2, gp_Vec& TgRst2) const = 0;
   
-  //! Returns  if the section is rationnal
+  //! Returns  if the section is rational
   Standard_EXPORT virtual Standard_Boolean IsRational() const = 0;
   
   //! Returns the length of the maximum section
@@ -180,7 +180,7 @@ public:
   Standard_EXPORT virtual void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) = 0;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/Blend/Blend_SurfRstFunction.hxx

@@ -150,7 +150,7 @@ public:
   //! specific to  the function.
   Standard_EXPORT virtual Standard_Boolean Decroch (const math_Vector& Sol, gp_Vec& NS, gp_Vec& TgS) const = 0;
   
-  //! Returns  if the section is rationnal
+  //! Returns  if the section is rational
   Standard_EXPORT virtual Standard_Boolean IsRational() const = 0;
   
   //! Returns the length of the maximum section
@@ -174,7 +174,7 @@ public:
   Standard_EXPORT virtual void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) = 0;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/BlendFunc/BlendFunc_CSCircular.hxx

@@ -129,7 +129,7 @@ public:
   
   Standard_EXPORT Standard_Boolean GetSection (const Standard_Real Param, const Standard_Real U, const Standard_Real V, const Standard_Real W, TColgp_Array1OfPnt& tabP, TColgp_Array1OfVec& tabV);
   
-  //! Returns  if the section is rationnal
+  //! Returns if the section is rational
   Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns the length of the maximum section
@@ -155,7 +155,7 @@ public:
   Standard_EXPORT void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/BlendFunc/BlendFunc_CSConstRad.hxx

@@ -117,7 +117,7 @@ public:
   
   Standard_EXPORT Standard_Boolean GetSection (const Standard_Real Param, const Standard_Real U, const Standard_Real V, const Standard_Real W, TColgp_Array1OfPnt& tabP, TColgp_Array1OfVec& tabV);
   
-  //! Returns  if the section is rationnal
+  //! Returns  if the section is rational
   Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns the length of the maximum section
@@ -142,7 +142,7 @@ public:
   Standard_EXPORT void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/BlendFunc/BlendFunc_ChAsym.hxx

@@ -111,7 +111,7 @@ public:
   //! Utile pour une visu rapide et approximative de la surface.
   Standard_EXPORT void Section (const Standard_Real Param, const Standard_Real U1, const Standard_Real V1, const Standard_Real U2, const Standard_Real V2, Standard_Real& Pdeb, Standard_Real& Pfin, gp_Lin& C);
   
-  //! Returns  if the section is rationnal
+  //! Returns if the section is rational
   Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns the length of the maximum section
@@ -135,7 +135,7 @@ public:
   Standard_EXPORT void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/BlendFunc/BlendFunc_ConstRad.cxx

@@ -62,7 +62,7 @@ BlendFunc_ConstRad::BlendFunc_ConstRad(const Handle(Adaptor3d_Surface)& S1,
                   distmin(RealLast()),
                   mySShape(BlendFunc_Rational)
 { 
-// Initialisaton of cash control variables.
+// Initialisation of cash control variables.
   tval = -9.876e100;
   xval.Init(-9.876e100);
   myXOrder = -1;

src/BlendFunc/BlendFunc_ConstRad.hxx

@@ -116,7 +116,7 @@ public:
   //! Utile pour une visu rapide et approximative de la surface.
   Standard_EXPORT void Section (const Standard_Real Param, const Standard_Real U1, const Standard_Real V1, const Standard_Real U2, const Standard_Real V2, Standard_Real& Pdeb, Standard_Real& Pfin, gp_Circ& C);
   
-  //! Returns  if the section is rationnal
+  //! Returns  if the section is rational
   Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns the length of the maximum section
@@ -140,7 +140,7 @@ public:
   Standard_EXPORT void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/BlendFunc/BlendFunc_EvolRad.hxx

@@ -115,7 +115,7 @@ public:
   //! Method for graphic traces
   Standard_EXPORT void Section (const Standard_Real Param, const Standard_Real U1, const Standard_Real V1, const Standard_Real U2, const Standard_Real V2, Standard_Real& Pdeb, Standard_Real& Pfin, gp_Circ& C);
   
-  //! Returns  if the section is rationnal
+  //! Returns if the section is rational
   Standard_EXPORT Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns the length of the maximum section
@@ -139,7 +139,7 @@ public:
   Standard_EXPORT void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/BlendFunc/BlendFunc_GenChamfer.hxx

@@ -105,7 +105,7 @@ public:
                                  Standard_Integer& NbPoles2d) Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/BlendFunc/BlendFunc_Ruled.hxx

@@ -127,7 +127,7 @@ public:
   Standard_EXPORT void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.

src/Extrema/Extrema_ExtCS.hxx

@@ -60,7 +60,7 @@ public:
   Standard_EXPORT void Initialize (const Adaptor3d_Surface& S, const Standard_Real Uinf, const Standard_Real Usup, const Standard_Real Vinf, const Standard_Real Vsup, const Standard_Real TolC, const Standard_Real TolS);
   
   //! Computes the distances.
-  //! An exception is raised if the fieds have not been
+  //! An exception is raised if the fields have not been
   //! initialized.
   Standard_EXPORT void Perform (const Adaptor3d_Curve& C, const Standard_Real Uinf, const Standard_Real Usup);
   

src/Extrema/Extrema_ExtPS.hxx

@@ -72,7 +72,7 @@ public:
   Standard_EXPORT void Initialize (const Adaptor3d_Surface& S, const Standard_Real Uinf, const Standard_Real Usup, const Standard_Real Vinf, const Standard_Real Vsup, const Standard_Real TolU, const Standard_Real TolV);
   
   //! Computes the distances.
-  //! An exception is raised if the fieds have not been
+  //! An exception is raised if the fields have not been
   //! initialized.
   Standard_EXPORT void Perform (const gp_Pnt& P);
   

src/Extrema/Extrema_ExtSS.hxx

@@ -51,7 +51,7 @@ public:
   Standard_EXPORT void Initialize (const Adaptor3d_Surface& S2, const Standard_Real Uinf2, const Standard_Real Usup2, const Standard_Real Vinf2, const Standard_Real Vsup2, const Standard_Real TolS1);
   
   //! Computes the distances.
-  //! An exception is raised if the fieds have not been
+  //! An exception is raised if the fields have not been
   //! initialized.
   Standard_EXPORT void Perform (const Adaptor3d_Surface& S1, const Standard_Real Uinf1, const Standard_Real Usup1, const Standard_Real Vinf1, const Standard_Real Vsup1, const Standard_Real TolS1);
   

src/FairCurve/FairCurve_Energy.hxx

@@ -77,7 +77,7 @@ public:
 protected:
 
   
-  //! Angles corresspond to the Ox axis
+  //! Angles correspond to the Ox axis
   //! ConstrOrder1(2) can be equal to 0, 1 or 2
   Standard_EXPORT FairCurve_Energy(const Handle(TColgp_HArray1OfPnt2d)& Poles, const Standard_Integer ConstrOrder1, const Standard_Integer ConstrOrder2, const Standard_Boolean WithAuxValue = Standard_False, const Standard_Real Angle1 = 0, const Standard_Real Angle2 = 0, const Standard_Integer Degree = 2, const Standard_Real Curvature1 = 0, const Standard_Real Curvature2 = 0);
   
@@ -98,7 +98,7 @@ protected:
   //! compute the pole which depend of variables and G2 constraint
   Standard_EXPORT void ComputePolesG2 (const Standard_Integer Side, const Standard_Real Lambda, const Standard_Real Rho, const gp_Pnt2d& P1, gp_Pnt2d& P2) const;
   
-  //! compute the energy (and derivatives) in intermediat format
+  //! compute the energy (and derivatives) in intermediate format
   Standard_EXPORT virtual Standard_Boolean Compute (const Standard_Integer DerivativeOrder, math_Vector& Result) = 0;
 
 

src/FairCurve/FairCurve_EnergyOfBatten.hxx

@@ -45,7 +45,7 @@ public:
   DEFINE_STANDARD_ALLOC
 
   
-  //! Angles corresspond to the Ox axis
+  //! Angles correspond to the Ox axis
   Standard_EXPORT FairCurve_EnergyOfBatten(const Standard_Integer BSplOrder, const Handle(TColStd_HArray1OfReal)& FlatKnots, const Handle(TColgp_HArray1OfPnt2d)& Poles, const Standard_Integer ContrOrder1, const Standard_Integer ContrOrder2, const FairCurve_BattenLaw& Law, const Standard_Real LengthSliding, const Standard_Boolean FreeSliding = Standard_True, const Standard_Real Angle1 = 0, const Standard_Real Angle2 = 0);
   
   //! return  the  lengthSliding = P1P2 + Sliding
@@ -66,7 +66,7 @@ protected:
   //! compute  the  poles which correspond with the variable X
   Standard_EXPORT virtual void ComputePoles (const math_Vector& X) Standard_OVERRIDE;
   
-  //! compute the energy in intermediat format
+  //! compute the energy in intermediate format
   Standard_EXPORT virtual Standard_Boolean Compute (const Standard_Integer DerivativeOrder, math_Vector& Result) Standard_OVERRIDE;
 
 

src/FairCurve/FairCurve_EnergyOfMVC.hxx

@@ -45,7 +45,7 @@ public:
   DEFINE_STANDARD_ALLOC
 
   
-  //! Angles corresspond to the Ox axis
+  //! Angles correspond to the Ox axis
   Standard_EXPORT FairCurve_EnergyOfMVC(const Standard_Integer BSplOrder, const Handle(TColStd_HArray1OfReal)& FlatKnots, const Handle(TColgp_HArray1OfPnt2d)& Poles, const Standard_Integer ContrOrder1, const Standard_Integer ContrOrder2, const FairCurve_BattenLaw& Law, const Standard_Real PhysicalRatio, const Standard_Real LengthSliding, const Standard_Boolean FreeSliding = Standard_True, const Standard_Real Angle1 = 0, const Standard_Real Angle2 = 0, const Standard_Real Curvature1 = 0, const Standard_Real Curvature2 = 0);
   
   //! return  the  lengthSliding = P1P2 + Sliding
@@ -66,7 +66,7 @@ protected:
   //! compute the poles which correspond with the variable X
   Standard_EXPORT virtual void ComputePoles (const math_Vector& X) Standard_OVERRIDE;
   
-  //! compute the energy in intermediat format
+  //! compute the energy in intermediate format
   Standard_EXPORT virtual Standard_Boolean Compute (const Standard_Integer DerivativeOrder, math_Vector& Result) Standard_OVERRIDE;
 
 

src/Geom2dConvert/Geom2dConvert.cxx

@@ -598,7 +598,7 @@ static void Pretreatment(TColGeom2d_Array1OfBSplineCurve& tab)
 
 //=======================================================================
 //function : NeedToBeTreated
-//purpose  : Say if the BSpline is rationnal and if the two first and two
+//purpose  : Say if the BSpline is rational and if the two first and two
 //           last weigths are different
 //=======================================================================    
 

src/GeomConvert/GeomConvert.cxx

@@ -616,7 +616,7 @@ static void Pretreatment(TColGeom_Array1OfBSplineCurve& tab)
 	 
 //=======================================================================
 //function : NeedToBeTreated
-//purpose  : Say if the BSpline is rationnal and if the two first and two
+//purpose  : Say if the BSpline is rational and if the two first and two
 //           last weigths are different
 //=======================================================================    
 

src/GeomFill/GeomFill_CircularBlendFunc.hxx

@@ -79,7 +79,7 @@ public:
   //! get the Multplicities of the section
   Standard_EXPORT virtual void Mults (TColStd_Array1OfInteger& TMults) const Standard_OVERRIDE;
   
-  //! Returns if the section is rationnal or not
+  //! Returns if the section is rational or not
   Standard_EXPORT virtual Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns  the number  of  intervals for  continuity
@@ -100,7 +100,7 @@ public:
   Standard_EXPORT virtual void SetInterval (const Standard_Real First, const Standard_Real Last) Standard_OVERRIDE;
   
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary (in radian)
   //! SurfTol error inside the surface.

src/GeomFill/GeomFill_EvolvedSection.hxx

@@ -74,7 +74,7 @@ public:
   //! get the Multplicities of the section
   Standard_EXPORT virtual void Mults (TColStd_Array1OfInteger& TMults) const Standard_OVERRIDE;
   
-  //! Returns if the sections are rationnal or not
+  //! Returns if the sections are rational or not
   Standard_EXPORT virtual Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns if the sections are periodic or not

src/GeomFill/GeomFill_NSections.hxx

@@ -100,7 +100,7 @@ public:
   //! get the Multplicities of the section
   Standard_EXPORT virtual void Mults (TColStd_Array1OfInteger& TMults) const Standard_OVERRIDE;
   
-  //! Returns if the sections are rationnal or not
+  //! Returns if the sections are rational or not
   Standard_EXPORT virtual Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns if the sections are periodic or not

src/GeomFill/GeomFill_SectionLaw.hxx

@@ -69,7 +69,7 @@ public:
   //! get the Multplicities of the section
   Standard_EXPORT virtual void Mults (TColStd_Array1OfInteger& TMults) const = 0;
   
-  //! Returns if the sections are rationnal or not
+  //! Returns if the sections are rational or not
   Standard_EXPORT virtual Standard_Boolean IsRational() const = 0;
   
   //! Returns if the sections are periodic or not

src/GeomFill/GeomFill_SweepFunction.hxx

@@ -99,7 +99,7 @@ public:
   Standard_EXPORT virtual void Resolution (const Standard_Integer Index, const Standard_Real Tol, Standard_Real& TolU, Standard_Real& TolV) const Standard_OVERRIDE;
 
   //! Returns the tolerance to reach in approximation
-  //! to respecte
+  //! to respect
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary (in radian)
   //! SurfTol error inside the surface.

src/GeomFill/GeomFill_UniformSection.hxx

@@ -74,7 +74,7 @@ public:
   //! get the Multplicities of the section
   Standard_EXPORT virtual void Mults (TColStd_Array1OfInteger& TMults) const Standard_OVERRIDE;
   
-  //! Returns if the sections are rationnal or not
+  //! Returns if the sections are rational or not
   Standard_EXPORT virtual Standard_Boolean IsRational() const Standard_OVERRIDE;
   
   //! Returns if the sections are periodic or not

src/GeomLib/GeomLib.cxx

@@ -1985,7 +1985,7 @@ void GeomLib::AxeOfInertia(const TColgp_Array1OfPnt& Points,
 //function : CanBeTreated
 //purpose  : indicates if the surface can be treated(if the conditions are
 //           filled) and need to be treated(if the surface hasn't been yet
-//           treated or if the surface is rationnal and non periodic)
+//           treated or if the surface is rational and non periodic)
 //=======================================================================
 
 static Standard_Boolean CanBeTreated(Handle(Geom_BSplineSurface)& BSurf)

src/GeomPlate/GeomPlate_BuildAveragePlane.hxx

@@ -44,7 +44,7 @@ public:
   
   //! Tol is a Tolerance to make the difference between
   //! the result plane and the result line.
-  //! if POption = 1 : automatical parametrisation
+  //! if POption = 1 : automatic parametrisation
   //! if POption = 2 : parametrisation by eigen vectors
   //! if NOption = 1 : the average plane is the inertial plane.
   //! if NOption = 2 : the average plane is the plane of max. flux.

src/GeomPlate/GeomPlate_BuildPlateSurface.cxx

@@ -1986,7 +1986,7 @@ Intersect(Handle(GeomPlate_HArray1OfSequenceOfReal)& PntInter,
 // the table of sequences Parcont contains all 
 // parameter of points on curves 
 // Field myPlateCont contains parameter of points on a plate;
-// it excludes duplicate points and imcompatible zones.
+// it excludes duplicate points and incompatible zones.
 // The first part corresponds to verification of compatibility
 // and to removal of duplicate points.
 //---------------------------------------------------------

src/IntCurveSurface/IntCurveSurface_Inter.gxx

@@ -1842,7 +1842,7 @@ void EstLimForInfRevl(const gp_Lin&   Line,
   gp_Pln aPlnPrp = aPln.Rotated (gp_Ax1 (O,aXVec), M_PI/2.);
   
   // project Line and it's X-axe symmetric one to plane and intersect
-  // resulting curve with projection of Basic Curev
+  // resulting curve with projection of Basic Curve
   Standard_Real aVmin = RealLast(), aVmax = -aVmin;
   Standard_Boolean aNoInt1 = Standard_False, aNoInt2 = Standard_False;
   ProjectIntersectAndEstLim (Line, aPln,    aBasCurvProj, aVmin, aVmax, aNoInt1);

src/IntWalk/IntWalk_IWalking_5.gxx

@@ -239,7 +239,7 @@ IntWalk_StatusDeflection IntWalk_IWalking::TestDeflection
         // the norm (square) of 3.*lambda (d1 - d4)/8.
         // either the norm of :
         //    3.*(Sqrt(Norme)/3.)*StepSign*(d1-d4)/8.
-        // which produces, takin the square :
+        // which produces, taking the square :
         //         Norme * (d1-d4).SquareMagnitude()/64.
 
       Standard_Real FlecheCourante = 

src/OSD/OSD.cxx

@@ -28,7 +28,7 @@ Standard_Boolean OSD::RealToCString(const Standard_Real aReal,
   if (Sprintf(aString,"%.17e",aReal)  <= 0) //BUC60808
     return Standard_False ;
 
-  // Suppress "e+00" and unsignificant 0's 
+  // Suppress "e+00" and insignificant 0's 
 
   p = strchr(aString,'e');
   if (p) {

src/OSD/OSD_Error.cxx

@@ -315,7 +315,7 @@ void OSD_Error::Perror() {
    }
    break;
   case EINTR:
-   buffer += "operation breaked by a signal";
+   buffer += "operation broken by a signal";
    extCode = ERR_INTR;
    break;
   case ENOMEM: 

src/PrsDim/PrsDim.hxx

@@ -105,7 +105,7 @@ public:
   
   Standard_EXPORT static Standard_Boolean ComputeGeometry (const TopoDS_Vertex& aVertex, gp_Pnt& point, const Handle(Geom_Plane)& aPlane, Standard_Boolean& isOnPlane);
   
-  //! Tryes to get Plane from Face.  Returns Surface of Face
+  //! Tries to get Plane from Face.  Returns Surface of Face
   //! in aSurf.  Returns Standard_True  and Plane of Face in
   //! aPlane in following  cases:
   //! Face is Plane, Offset of Plane,

src/PrsDim/PrsDim_AngleDimension.cxx

@@ -502,7 +502,7 @@ void PrsDim_AngleDimension::DrawArcWithText (const Handle(Prs3d_Presentation)& t
 
   if (isLineBreak)
   {
-    // compute gap for label as parameteric size of sector on circle segment
+    // compute gap for label as parametric size of sector on circle segment
     Standard_Real aSectorOfText = theTextWidth / aRadius;
     Standard_Real aTextBegin = aParamMid - aSectorOfText * 0.5;
     Standard_Real aTextEnd = aParamMid + aSectorOfText * 0.5;

src/PrsDim/PrsDim_DiameterDimension.hxx

@@ -31,7 +31,7 @@ DEFINE_STANDARD_HANDLE(PrsDim_DiameterDimension, PrsDim_Dimension)
 //! - On generic circle in the specified plane.
 //! - On generic shape containing geometry that can be measured
 //!   by diameter dimension: circle wire, circular face, etc.
-//! The anchor point is the location of the left attachement point of
+//! The anchor point is the location of the left attachment point of
 //! dimension on the circle.
 //! The anchor point computation is processed after dimension plane setting
 //! so that positive flyout direction stands with normal of the circle and

src/PrsDim/PrsDim_Dimension.cxx

@@ -440,7 +440,7 @@ void PrsDim_Dimension::drawText (const Handle(Prs3d_Presentation)& thePresentati
       aTextWidth += aFont.AdvanceX (aCurrChar, aNextChar);
     }
 
-    // formating text position in XOY plane
+    // formatting text position in XOY plane
     Standard_Integer aHLabelPos = theLabelPosition & LabelPosition_HMask;
     Standard_Integer aVLabelPos = theLabelPosition & LabelPosition_VMask;
 

src/PrsDim/PrsDim_IdenticRelation.cxx

@@ -362,7 +362,7 @@ void PrsDim_IdenticRelation::ComputeSelection(const Handle(SelectMgr_Selection)&
   Handle(SelectMgr_EntityOwner) own = new SelectMgr_EntityOwner(this,7);
 
   Handle(Select3D_SensitiveSegment) seg;
-  // attachement point of the segment linking position to the curve
+  // attachment point of the segment linking position to the curve
   gp_Pnt attach; 
   Standard_Real confusion (Precision::Confusion());
     
@@ -437,7 +437,7 @@ void PrsDim_IdenticRelation::ComputeSelection(const Handle(SelectMgr_Selection)&
 // jfa 24/10/2000 end
     }
 
-  // Creation of the segment linking the attachement point with the
+  // Creation of the segment linking the attachment point with the
   // position
   if ( !attach.IsEqual(myPosition, confusion) )
     {
@@ -1424,7 +1424,7 @@ void PrsDim_IdenticRelation::ComputeTwoVerticesPresentation(const Handle(Prs3d_P
     return ;
 
   
-  // The attachement points are the points themselves that must be 
+  // The attachment points are the points themselves that must be 
   //identical
   myFAttach = BRep_Tool::Pnt(FVertex);
   mySAttach = myFAttach;
@@ -1657,7 +1657,7 @@ void PrsDim_IdenticRelation::ComputeOneEdgeOVertexPresentation(const Handle(Prs3
     if (numedge == 1) myExtShape = 2;
     else myExtShape = 1;
   }
-  // The attachement points are the point 
+  // The attachment points are the point 
   myFAttach = BRep_Tool::Pnt(V);
   mySAttach = myFAttach;
 

src/PrsDim/PrsDim_LengthDimension.cxx

@@ -792,7 +792,7 @@ Standard_Boolean PrsDim_LengthDimension::InitTwoShapesPoints (const TopoDS_Shape
 //function : InitOneShapePoints
 //purpose  : Initialization of two points where dimension layouts
 //           will be attached
-// Attention: 1) <theShape> can be only the edge in currect implementation
+// Attention: 1) <theShape> can be only the edge in current implementation
 //            2) No length for infinite edge
 //=======================================================================
 Standard_Boolean PrsDim_LengthDimension::InitOneShapePoints (const TopoDS_Shape& theShape)

src/PrsDim/PrsDim_RadiusDimension.hxx

@@ -28,7 +28,7 @@ DEFINE_STANDARD_HANDLE(PrsDim_RadiusDimension, PrsDim_Dimension)
 //! - On generic circle with user-defined anchor point on that circle.
 //! - On generic shape containing geometry that can be measured
 //!   by diameter dimension: circle wire, arc, circular face, etc.
-//! The anchor point is the location of left attachement point of
+//! The anchor point is the location of left attachment point of
 //! dimension on the circle. It can be user-specified, or computed as
 //! middle point on the arc. The radius dimension always lies in the
 //! plane of the measured circle. The dimension is considered as

src/STEPConstruct/STEPConstruct.hxx

@@ -46,7 +46,7 @@ public:
 
   
   //! Returns STEP entity of the (sub)type of RepresentationItem
-  //! which is a result of the tranalation of the Shape, or Null if
+  //! which is a result of the translation of the Shape, or Null if
   //! no result is recorded
   Standard_EXPORT static Handle(StepRepr_RepresentationItem) FindEntity (const Handle(Transfer_FinderProcess)& FinderProcess, const TopoDS_Shape& Shape);
   
@@ -59,7 +59,7 @@ public:
   //! Returns Shape resulting from given STEP entity (Null if not mapped)
   Standard_EXPORT static TopoDS_Shape FindShape (const Handle(Transfer_TransientProcess)& TransientProcess, const Handle(StepRepr_RepresentationItem)& item);
   
-  //! Find CDSR correcponding to the component in the specified assembly
+  //! Find CDSR corresponding to the component in the specified assembly
   Standard_EXPORT static Standard_Boolean FindCDSR (const Handle(Transfer_Binder)& ComponentBinder, const Handle(StepShape_ShapeDefinitionRepresentation)& AssemblySDR, Handle(StepShape_ContextDependentShapeRepresentation)& ComponentCDSR);
 
 };

src/STEPConstruct/STEPConstruct_ExternRefs.cxx

@@ -652,7 +652,7 @@ Standard_Integer STEPConstruct_ExternRefs::AddExternRef (const Standard_CString
     //Handle(StepBasic_ProductDefinitionWithAssociatedDocuments) PDWAD = 
     //  Handle(StepBasic_ProductDefinitionWithAssociatedDocuments)::DownCast(PD);
     
-    // searh in graph for replace
+    // search in graph for replace
 //    Standard_Integer numProdDef;
 //    Interface_EntityIterator subs = Graph().Shareds(SDR);
 //    for (subs.Start(); subs.More(); subs.Next()) {
@@ -832,7 +832,7 @@ Standard_Boolean STEPConstruct_ExternRefs::addAP214ExterRef (const Handle(StepAP
 
   // create new product definition formation
   Handle(StepBasic_ProductDefinitionFormation) PDF = new StepBasic_ProductDefinitionFormation;
-  // name id taked from example Standard_ExtString_ref_master.stp
+  // name id taken from example Standard_ExtString_ref_master.stp
   Handle(TCollection_HAsciiString) PDF_ID = new TCollection_HAsciiString("1");
   PDF->Init( PDF_ID, EmptyString, Product );
   

src/STEPConstruct/STEPConstruct_ExternRefs.hxx

@@ -116,7 +116,7 @@ public:
 protected:
 
   
-  //! Create a new additional structure entities and add ncessary references
+  //! Create a new additional structure entities and add necessary references
   //! Note: do not refer from ADR to DF directly in AP214 (TRJ11).
   Standard_EXPORT Standard_Boolean addAP214ExterRef (const Handle(StepAP214_AppliedDocumentReference)& ADR, const Handle(StepBasic_ProductDefinition)& PD, const Handle(StepBasic_DocumentFile)& DF, const Standard_CString filename);
 

src/STEPConstruct/STEPConstruct_ValidationProps.hxx

@@ -116,7 +116,7 @@ public:
                                                 Standard_Boolean& isArea,
                                                 const StepData_Factors& theLocalFactors = StepData_Factors()) const;
   
-  //! Returns value of Centriod property (or False if it is not)
+  //! Returns value of Centroid property (or False if it is not)
   Standard_EXPORT Standard_Boolean GetPropPnt (const Handle(StepRepr_RepresentationItem)& item,
                                                const Handle(StepRepr_RepresentationContext)& Context,
                                                gp_Pnt& Pnt,

src/SelectMgr/SelectMgr_Selection.hxx

@@ -92,7 +92,7 @@ public:
   NCollection_Vector<Handle(SelectMgr_SensitiveEntity)>& ChangeEntities() { return myEntities; }
 
   //! Returns the flag UpdateFlag.
-  //! This flage gives the update status of this framework
+  //! This flag gives the update status of this framework
   //! in a ViewerSelector object:
   //! -   full
   //! -   partial, or

src/SelectMgr/SelectMgr_ViewerSelector.hxx

@@ -269,7 +269,7 @@ public:
 
   //! Picks the sensitive entity according to the input axis.
   //! This is geometric intersection 3D objects by axis
-  //! (camera parameters are ignored and objects with transform persistance are skipped).
+  //! (camera parameters are ignored and objects with transform persistence are skipped).
   Standard_EXPORT void Pick (const gp_Ax1& theAxis,
                              const Handle(V3d_View)& theView);
 

src/ShapeUpgrade/ShapeUpgrade_ConvertCurve2dToBezier.cxx

@@ -171,7 +171,7 @@ void ShapeUpgrade_ConvertCurve2dToBezier::Compute()
       mySplitValues->SetValue(mySplitValues->Length(),Last);
     }
 
-    // PTV 20.12.2001 Try to simpify BSpline Curve
+    // PTV 20.12.2001 Try to simplify BSpline Curve
     ShapeCustom_Curve2d::SimplifyBSpline2d (aBSpline2d, Precision::Approximation());
     
     Geom2dConvert_BSplineCurveToBezierCurve tool(aBSpline2d,First,Last,precision);

src/ShapeUpgrade/ShapeUpgrade_RemoveLocations.cxx

@@ -239,7 +239,7 @@ Standard_Boolean ShapeUpgrade_RemoveLocations::MakeNewShape(const TopoDS_Shape&
   }
   isDone = aRebuild;
   
-  //Removing location from sub-shapes in dependance of LevelRemoving and re-building shape.
+  //Removing location from sub-shapes in dependence of LevelRemoving and re-building shape.
   
   if(!isBound) {
     if(!aRebuild)

src/Standard/Standard_Dump.hxx

@@ -432,7 +432,7 @@ private:
                                                            NCollection_IndexedDataMap<TCollection_AsciiString, Standard_DumpValue>& theValues);
 
 
-  //! Returns key of json in the index position. Incement the index position to the next symbol in the row
+  //! Returns key of json in the index position. Increment the index position to the next symbol in the row
   Standard_EXPORT static Standard_Boolean jsonKey (const TCollection_AsciiString& theStreamStr,
                                                    Standard_Integer theStartIndex,
                                                    Standard_Integer& theNextIndex,

src/Standard/Standard_ErrorHandler.cxx

@@ -225,7 +225,7 @@ Standard_ErrorHandler* Standard_ErrorHandler::FindHandler(const Standard_Handler
   // lock the stack
   GetMutex().Lock();
     
-  // Find the current ErrorHandler Accordin tread
+  // Find the current ErrorHandler according to thread
   Standard_ErrorHandler* aPrevious = 0;
   Standard_ErrorHandler* aCurrent = Top;
   Standard_ErrorHandler* anActive = 0;

src/Standard/Standard_MMgrOpt.cxx

@@ -121,7 +121,7 @@ extern "C" int getpagesize() ;
 /* In the allocated block, first bytes are used for storing of memory manager's data.
    (size of block). The minimal size of these data is sizeof(int).
    The memory allocated in system usually aligned by 16 bytes. The alignment of the
-   data area in the memory block is shfted on BLOCK_SHIFT*sizeof(Standard_Size)
+   data area in the memory block is shifted on BLOCK_SHIFT*sizeof(Standard_Size)
    bytes.
    It is OK for WNT, SUN and Linux systems, but on SGI alignment should be 8 bytes.
    So, BLOCK_SHIFT is formed as macro for support on other possible platforms.

src/TDF/TDF_Attribute.hxx

@@ -358,7 +358,7 @@ Standard_OStream& operator<< (Standard_OStream& anOS) const
   //! forgotten attribute is also flagged not "Valid".
   //!
   //! A forgotten attribute is invisible. Set also the
-  //! "Valid" status to False. Obvioulsy, DF cannot
+  //! "Valid" status to False. Obviously, DF cannot
   //! empty an attribute (this has a semantic
   //! signification), but can remove it from the
   //! structure. So, a forgotten attribute is NOT an empty

src/TDocStd/TDocStd_Document.hxx

@@ -117,7 +117,7 @@ public:
   //! Launches a new command. This command may be undone.
   Standard_EXPORT void NewCommand();
   
-  //! returns True if a Command transaction is open in the curret .
+  //! returns True if a Command transaction is open in the current .
   Standard_EXPORT Standard_Boolean HasOpenCommand() const;
   
   //! Opens a new command transaction in this document.

src/TopOpeBRep/TopOpeBRep_EdgesFiller.hxx

@@ -37,7 +37,7 @@ class TopOpeBRepDS_Interference;
 
 
 //! Fills a TopOpeBRepDS_DataStructure with Edge/Edge
-//! instersection data described by TopOpeBRep_EdgesIntersector.
+//! intersection data described by TopOpeBRep_EdgesIntersector.
 class TopOpeBRep_EdgesFiller 
 {
 public:

src/TopOpeBRep/TopOpeBRep_EdgesIntersector.cxx

@@ -250,7 +250,7 @@ static Standard_Boolean IsTangentSegment(const IntRes2d_IntersectionPoint &P1,
 Standard_Boolean EdgesIntersector_checkT1D(const TopoDS_Edge& E1,const TopoDS_Edge& E2,const TopoDS_Vertex& vG,
 			      TopOpeBRepDS_Transition& newT)
 //------------------------------------------------------------------------
-     // E1 sdm E2, interfers with E2 at vertex vG
+     // E1 sdm E2, interferes with E2 at vertex vG
      // vG is vertex of E2, but not vertex of E1
      // purpose : get newT / attached to E1, I1d=(newT(E2),G,E2)
 {

src/TopOpeBRep/TopOpeBRep_FacesFiller.hxx

@@ -43,7 +43,7 @@ class gp_Pnt;
 
 
 //! Fills a DataStructure from TopOpeBRepDS with the result
-//! of Face/Face instersection described by FacesIntersector from TopOpeBRep.
+//! of Face/Face intersection described by FacesIntersector from TopOpeBRep.
 //! if the faces have same Domain, record it in the DS.
 //! else record lines and  points and attach list of interferences
 //! to the faces, the lines and the edges.

src/TopOpeBRep/TopOpeBRep_ShapeScanner.hxx

@@ -31,7 +31,7 @@ class TopOpeBRepTool_ShapeExplorer;
 
 
 //! Find, among the subshapes SS of a reference shape
-//! RS, the ones which 3D box interfers with the box of
+//! RS, the ones which 3D box interferes with the box of
 //! a shape S (SS and S are of the same type).
 class TopOpeBRep_ShapeScanner 
 {

src/TopOpeBRepBuild/TopOpeBRepBuild_GridFF.cxx

@@ -135,7 +135,7 @@ Standard_Boolean FUN_computeLIFfaces2d(const TopOpeBRepBuild_Builder& BU,
 				       const TopoDS_Edge& E, 
 				       TopOpeBRepDS_PDataStructure& pDS2d)
 // purpose : compute new face/face interferences F FTRA,
-//  {I = (T(F),ES,FTRA)} / Fsdm F and ES interfers with E which has splits ON
+//  {I = (T(F),ES,FTRA)} / Fsdm F and ES interferes with E which has splits ON
 //  E is edge of F
 { 
   const TopOpeBRepDS_DataStructure& BDS = BU.DataStructure()->DS(); 

src/TopOpeBRepTool/TopOpeBRepTool_PurgeInternalEdges.hxx

@@ -69,8 +69,8 @@ public:
     return myIsDone;
   }
   
-  //! Using   the list  of internal edge    from each face,
+  //! Using the list of internal edges from each face,
-  //! rebuild myShape by removing thoses edges.
+  //! rebuild myShape by removing those edges.
   Standard_EXPORT void Perform();
 
 protected:

src/TopOpeBRepTool/TopOpeBRepTool_REGUW.cxx

@@ -722,7 +722,7 @@ Standard_Boolean TopOpeBRepTool_REGUW::REGU(const Standard_Integer istep,
   // tol2d = 1.e-2*(lowest distance (p2df,p2dl) between all non-closed  
   //                and non-degenerated pcurves seen during the regularization).
   // This value is updated in method chkp2dFORinE.
-  // The comparision of p2d points is coupled with comparision of vertices
+  // The comparison of p2d points is coupled with comparison of vertices
   // We should in fact use bounding boxes on pcurves but this is too expensive!!!
   mytol2d = 1.e-5;
   isinit0 = Standard_True;