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Data Exchange, GLTF - Change export line type to LINE_STRIP #535

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GLTF exporter mark edges as a LINE, which is 2 connected points.
OCCT polylines is mostly line strip structure.
Updated GLTF reader to handle new type of lines
This commit is contained in:
Elias Cohenca 2025-05-17 12:00:40 +03:00 committed by dpasukhi
parent 86c72171bf
commit b9629dba1c
3 changed files with 6 additions and 4 deletions
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2
src/RWGltf/RWGltf_CafWriter.cxx
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@ -2030,7 +2030,7 @@ void RWGltf_CafWriter::writePrimArray(const RWGltf_GltfFace& theGltfFace
switch (theGltfFace.Shape.ShapeType())
{
case TopAbs_EDGE:
myWriter->Int(RWGltf_GltfPrimitiveMode_Lines);
myWriter->Int(RWGltf_GltfPrimitiveMode_LineStrip);
break;
case TopAbs_VERTEX:
myWriter->Int(RWGltf_GltfPrimitiveMode_Points);

7
src/RWGltf/RWGltf_GltfJsonParser.cxx
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@ -1783,7 +1783,7 @@ bool RWGltf_GltfJsonParser::gltfParsePrimArray(TopoDS_Shape& th
}
}
if (aMode != RWGltf_GltfPrimitiveMode_Triangles && aMode != RWGltf_GltfPrimitiveMode_Lines
&& aMode != RWGltf_GltfPrimitiveMode_Points)
&& aMode != RWGltf_GltfPrimitiveMode_LineStrip && aMode != RWGltf_GltfPrimitiveMode_Points)
{
Message::SendWarning(TCollection_AsciiString() + "Primitive array within Mesh '" + theMeshId
+ "' skipped due to unsupported mode");
@ -1954,7 +1954,8 @@ bool RWGltf_GltfJsonParser::gltfParsePrimArray(TopoDS_Shape& th
aShape = aVertices;
break;
}
case RWGltf_GltfPrimitiveMode_Lines: {
case RWGltf_GltfPrimitiveMode_Lines:
case RWGltf_GltfPrimitiveMode_LineStrip: {
TColgp_Array1OfPnt aNodes(1, aMeshData->NbEdges());
for (Standard_Integer anEdgeIdx = 1; anEdgeIdx <= aMeshData->NbEdges(); ++anEdgeIdx)
{
@ -1989,7 +1990,7 @@ bool RWGltf_GltfJsonParser::gltfParsePrimArray(TopoDS_Shape& th
aShapeAttribs.RawName = theMeshName;
// assign material and not color
if (aMode == RWGltf_GltfPrimitiveMode_Lines)
if (aMode == RWGltf_GltfPrimitiveMode_Lines || aMode == RWGltf_GltfPrimitiveMode_LineStrip)
{
aShapeAttribs.Style.SetColorCurv(aMeshData->BaseColor().GetRGB());
}

1
src/RWGltf/RWGltf_TriangulationReader.cxx
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@ -566,6 +566,7 @@ bool RWGltf_TriangulationReader::readBuffer(
const TCollection_AsciiString& aName = theSourceMesh->Id();
const RWGltf_GltfPrimitiveMode aPrimMode = theSourceMesh->PrimitiveMode();
if (aPrimMode != RWGltf_GltfPrimitiveMode_Triangles && aPrimMode != RWGltf_GltfPrimitiveMode_Lines
&& aPrimMode != RWGltf_GltfPrimitiveMode_LineStrip
&& aPrimMode != RWGltf_GltfPrimitiveMode_Points)
{
Message::SendWarning(TCollection_AsciiString("Buffer '") + aName