OpenCascade/occt
1
0
Fork 0
mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-08-09 13:22:24 +03:00
Code Activity

0030691: Data Exchange - implement import of mesh data from files in glTF format

Browse Source 
Added RWGltf_CafReader class implementing glTF reader.
Added readgltf Draw Harness command for reading glTF files.
This commit is contained in:
kgv
2019-06-18 19:41:15 +03:00
committed by bugmaster
parent eec6e810f1
commit 0a419c51ed
46 changed files with 4341 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

136
src/XSDRAWSTLVRML/XSDRAWSTLVRML.cxx
View File

@@ -19,6 +19,8 @@
#include <Bnd_Box.hxx>
#include <BRep_Builder.hxx>
#include <DBRep.hxx>
#include <DDocStd.hxx>
#include <DDocStd_DrawDocument.hxx>
#include <Draw.hxx>
#include <Draw_Interpretor.hxx>
#include <Draw_PluginMacro.hxx>
@@ -40,6 +42,7 @@
#include <Quantity_Color.hxx>
#include <Quantity_HArray1OfColor.hxx>
#include <Quantity_NameOfColor.hxx>
#include <RWGltf_CafReader.hxx>
#include <RWStl.hxx>
#include <SelectMgr_SelectionManager.hxx>
#include <Standard_ErrorHandler.hxx>
@@ -51,8 +54,11 @@
#include <TColStd_Array1OfReal.hxx>
#include <TColStd_HPackedMapOfInteger.hxx>
#include <TColStd_MapIteratorOfPackedMapOfInteger.hxx>
#include <TDataStd_Name.hxx>
#include <TDocStd_Application.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Shape.hxx>
#include <UnitsAPI.hxx>
#include <UnitsMethods.hxx>
#include <V3d_View.hxx>
#include <ViewerTest.hxx>
@@ -77,6 +83,126 @@ extern Standard_Boolean VDisplayAISObject (const TCollection_AsciiString& theNam
const Handle(AIS_InteractiveObject)& theAISObj,
Standard_Boolean theReplaceIfExists = Standard_True);
//=============================================================================
//function : ReadGltf
//purpose : Reads glTF file
//=============================================================================
static Standard_Integer ReadGltf (Draw_Interpretor& theDI,
Standard_Integer theNbArgs,
const char** theArgVec)
{
TCollection_AsciiString aDestName, aFilePath;
Standard_Boolean toUseExistingDoc = Standard_False;
Standard_Real aSystemUnitFactor = UnitsMethods::GetCasCadeLengthUnit() * 0.001;
Standard_Boolean toListExternalFiles = Standard_False;
Standard_Boolean isParallel = Standard_False;
Standard_Boolean isNoDoc = (TCollection_AsciiString(theArgVec[0]) == "readgltf");
for (Standard_Integer anArgIter = 1; anArgIter < theNbArgs; ++anArgIter)
{
TCollection_AsciiString anArgCase (theArgVec[anArgIter]);
anArgCase.LowerCase();
if (!isNoDoc
&& (anArgCase == "-nocreate"
|| anArgCase == "-nocreatedoc"))
{
toUseExistingDoc = Standard_True;
if (anArgIter + 1 < theNbArgs
&& ViewerTest::ParseOnOff (theArgVec[anArgIter + 1], toUseExistingDoc))
{
++anArgIter;
}
}
else if (anArgCase == "-parallel")
{
isParallel = Standard_True;
if (anArgIter + 1 < theNbArgs
&& ViewerTest::ParseOnOff (theArgVec[anArgIter + 1], isParallel))
{
++anArgIter;
}
}
else if (anArgCase == "-listexternalfiles"
|| anArgCase == "-listexternals"
|| anArgCase == "-listexternal"
|| anArgCase == "-external"
|| anArgCase == "-externalfiles")
{
toListExternalFiles = Standard_True;
}
else if (aDestName.IsEmpty())
{
aDestName = theArgVec[anArgIter];
}
else if (aFilePath.IsEmpty())
{
aFilePath = theArgVec[anArgIter];
}
else
{
std::cout << "Syntax error at '" << theArgVec[anArgIter] << "'\n";
return 1;
}
}
if (aFilePath.IsEmpty())
{
std::cout << "Syntax error: wrong number of arguments\n";
return 1;
}
Handle(Draw_ProgressIndicator) aProgress = new Draw_ProgressIndicator (theDI, 1);
Handle(TDocStd_Document) aDoc;
if (!toListExternalFiles
&& !isNoDoc)
{
Handle(TDocStd_Application) anApp = DDocStd::GetApplication();
Standard_CString aNameVar = aDestName.ToCString();
DDocStd::GetDocument (aNameVar, aDoc, Standard_False);
if (aDoc.IsNull())
{
if (toUseExistingDoc)
{
std::cout << "Error: document with name " << aDestName << " does not exist\n";
return 1;
}
anApp->NewDocument (TCollection_ExtendedString ("BinXCAF"), aDoc);
}
else if (!toUseExistingDoc)
{
std::cout << "Error: document with name " << aDestName << " already exists\n";
return 1;
}
}
RWGltf_CafReader aReader;
aReader.SetSystemLengthUnit (aSystemUnitFactor);
aReader.SetSystemCoordinateSystem (RWMesh_CoordinateSystem_Zup);
aReader.SetDocument (aDoc);
aReader.SetParallel (isParallel);
if (toListExternalFiles)
{
aReader.ProbeHeader (aFilePath);
for (NCollection_IndexedMap<TCollection_AsciiString>::Iterator aFileIter (aReader.ExternalFiles()); aFileIter.More(); aFileIter.Next())
{
theDI << "\"" << aFileIter.Value() << "\" ";
}
}
else
{
aReader.Perform (aFilePath, aProgress);
if (isNoDoc)
{
DBRep::Set (aDestName.ToCString(), aReader.SingleShape());
}
else
{
Handle(DDocStd_DrawDocument) aDrawDoc = new DDocStd_DrawDocument (aDoc);
TDataStd_Name::Set (aDoc->GetData()->Root(), aDestName.ToCString());
Draw::Set (aDestName.ToCString(), aDrawDoc);
}
}
return 0;
}
static Standard_Integer writestl
(Draw_Interpretor& di, Standard_Integer argc, const char** argv)
{
@@ -1259,6 +1385,16 @@ void XSDRAWSTLVRML::InitCommands (Draw_Interpretor& theCommands)
const char* g = "XSTEP-STL/VRML"; // Step transfer file commands
//XSDRAW::LoadDraw(theCommands);
theCommands.Add ("ReadGltf",
"ReadGltf Doc file [-parallel {on|off}] [-listExternalFiles] [-noCreateDoc]"
"\n\t\t: Read glTF file into XDE document."
"\n\t\t: -listExternalFiles do not read mesh and only list external files"
"\n\t\t: -noCreateDoc read into existing XDE document",
__FILE__, ReadGltf, g);
theCommands.Add ("readgltf",
"readgltf shape file"
"\n\t\t: Same as ReadGltf but reads glTF file into a shape instead of a document.",
__FILE__, ReadGltf, g);
theCommands.Add ("writevrml", "shape file [version VRML#1.0/VRML#2.0 (1/2): 2 by default] [representation shaded/wireframe/both (0/1/2): 1 by default]",__FILE__,writevrml,g);
theCommands.Add ("writestl", "shape file [ascii/binary (0/1) : 1 by default] [InParallel (0/1) : 0 by default]",__FILE__,writestl,g);
theCommands.Add ("readstl",