Removed tight connections between data structures, auxiliary tools and algorithms in order to create extensible solution, easy for maintenance and improvements;
Code is separated on several functional units responsible for specific operation for the sake of simplification of debugging and readability;
Introduced new data structures enabling possibility to manipulate discrete model of particular entity (edge, wire, face) in order to perform computations locally instead of processing an entire model.
The workflow of updated component can be divided on six parts:
* Creation of model data structure: source TopoDS_Shape passed to algorithm is analyzed and exploded on faces and edges. For each topological entity corresponding reflection is created in data model. Note that underlying algorithms use data model as input and access it via common interface which allows user to create custom data model with necessary dependencies between particular entities;
* Discretize edges 3D & 2D curves: 3D curve as well as associated set of 2D curves of each model edge is discretized in order to create coherent skeleton used as a base in faces meshing process. In case if some edge of source shape already contains polygonal data which suites specified parameters, it is extracted from shape and stored to the model as is. Each edge is processed separately, adjacency is not taken into account;
* Heal discrete model: source TopoDS_Shape can contain problems, such as open-wire or self-intersections, introduced during design, exchange or modification of model. In addition, some problems like self-intersections can be introduced by roughly discretized edges. This stage is responsible for analysis of discrete model in order to detect and repair faced problems or refuse model’s part for further processing in case if problem cannot be solved;
* Preprocess discrete model: defines actions specific for implemented approach to be performed before meshing of faces. By default, iterates over model faces and checks consistency of existing triangulations. Cleans topological faces and its adjacent edges from polygonal data in case of inconsistency or marks face of discrete model as not required for computation;
* Discretize faces: represents core part performing mesh generation for particular face based on 2D discrete data related to processing face. Caches polygonal data associated with face’s edges in data model for further processing and stores generated mesh to TopoDS_Face;
* Postprocess discrete model: defines actions specific for implemented approach to be performed after meshing of faces. By default, stores polygonal data obtained on previous stage to TopoDS_Edge objects of source model.
Component is now spread over IMeshData, IMeshTools, BRepMeshData and BRepMesh units.
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1. Extend "tricheck" DRAW-command in order to find degenerated triangles.
2. Class BRepMesh_FastDiscret::Parameters has been declared as deprecated.
3. NURBS range splitter: do not split intervals without necessity. Intervals are split only in case if it is impossible to compute normals directly on intervals.
4. Default value of IMeshTools_Parameters::MinSize has been changed. New value is equal to 0.1*Deflection.
5. Correction of test scripts:
1) perf mesh bug27119: requested deflection is increased from 1e-6 to 1e-5 to keep reasonable performance (but still reproducing original issue)
2) bugs mesh bug26692_1, 2: make snapshot of triangulation instead of wireframe (irrelevant)
Correction in upgrade guide.
Check deviation of normals at vertices of triangles for complex surface types different from Bezier and BSpline.
Modified test cased according to changes in BRepMesh.
Do not remove more intermediate parameters than N - 3 in order to have at least one parameter related to surface internals.
Check angle for angular deflection before removement of intermediate parameters.
Unify computation of internal vertices for complex surfaces.
Discretization points of edges are taken into account during computation of step of mesh grid.
Remove parameters only if they fit the constrains along the whole surface.
Do not add random internal parameters in case if their number is just 2.
Force freezing parameters both for U and V in case of significant control point.
Modified test cases
Warnings elimination in vc14.
- Added function checkprops, set default tolerance parameter to 1.0e-4
- Using "area" instead of "square".
- Options "-equal\notequal" isn't used together with "-s" in blend and offset test cases.
- Correct regressions/differences/improvements and CPU problem (set props tolerance to 0.1)
- Corrected test cases to use checkprops proc.
- Correct image difference
- Updated TODOs in test cases.
- Updated test cases to get correct images of result shape
Fix first subset of warnings (about 100)
- while(1) and similar constructs replaced by for(;;)
- some uninitialized variables corrected
Got rid of Warning C4189: local variable is initialised but not referenced
Corrected mistakes after getting rid of C4189 compiler warning
Corrected some mistakes that led to compiling errors
Fixed test case because of improvement message - removed unnecessary TODO.
Small fix: tabs have been replaced with whitespaces.
Added TODO for Windows platform
removed last TODO
Corrected mistakes, returned some #ifdef DEB code, fixed test case .
Restoring a few places which have been modified too much
Small grammar fix
Deleted unnecessary puts in bugs/end
bugs/end script was edited to dump results from all opened views; duplicated vinit was deleted from bug625. QABugs::OCC280()
was edited to work with multiviews;ViewerInit() method was corrected. vviewlist command was modificated to output string.
Small corrections
Compile errors were corrected
Modified END file of all group bugs. Command nbshape moved to END file. Add begin with variable subgroup
Small correction in END file
Replaced test case bug726_3 from moddata to modalg
Test case tests/bugs/modalg/dxf906 was renamed to bug889
Adding test cases to tests/bugs/moddata
Modified expressions puts [checkshape result]. Added command vzfit in end file in folder bugs. Unlocked command coordload in QABugs_3.cxx
Modified test case bugs vis buc60738
Added test cases to modalg and moddata
Added test cases to caf and fclasses
Added test cases to group heal
Added function DetectFontsAspects to Font_FontMgr class. This function uses workaround from OpenGl_FontMgr with FreeType for detecting font aspect.
Removed font name parsing from Font_FontMgr::InitFontDataBase(). Now the font name and font style we get through the FreeType.
Fixed Unix part of Font_FontMgr::InitFontDataBase() method. Font name and font style now detected through the FreeType.
Remarks fix. Added recursive default font directories scanning .
Fixed adding fonts folders recursively from configuration files.
Moved fonts aliases map from OpenGl_Display_1 to Font_FontMgr.
Moved fonts name definition from Graphic3d_NameOfFont.hxx to Font_NameOfFont.hxx.
Added new methods to Font_FontMgr: GetAvailableFontsNames, GetFont and FindFont.
Modified Font_SystemFont creation from XLFD. Added method IsEqual to Font_SystemFont.
Modified methods OpenGl_Display::FindFont, OpenGl_FontMgr::request_font in accordance to the new functionality of the Font_FontMgr.
OpenGl_FontMgr now stores only generated fonts instead of duplication of available fonts list.
Removed method OpenGl_FontMgr::requestFontList. Its function now performs Font_FontMgr::GetAvailableFontsNames.
Documentation was fixed
Adjusting testing cases for current state of OCCT
AIS_InteractiveContext::myLocalContexts map accessed before newly created AIS_LocalContext bound to it
Minor remarks: comments revised.
Adding test case
Adding new draw command
Small correction of tests
FaceOutline aspect and flag added to AIS_Drawer, Prs3d_Drawer.cdl
FaceOutlines computed by StdPrs_ShadedShape and build upon the edge triangulation.
"vshowoutlines" draw command for testing outlines on AIS_Shapes,
"XShowOutlines" draw command for testing outlines on XCAF objects.
remarks corrected:
- FaceOutline renamed to FaceBoundary
- Graphic3d_ArrayOfSegments with edges used instead of Graphic3d_ArrayOfPolylines with bounds.
draw boundaries in separate Graphic3d_Group.
Adding test cases bugs/vis/CR23407_1 CR23407_2
