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Gui: [skip ci] set crease angle if possible when exporting to x3d/xhtml

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This commit is contained in:
wmayer
2020-09-08 14:35:29 +02:00
parent 80a73d604c
commit 10aba9c616
1 changed files with 37 additions and 4 deletions
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41
src/Gui/SoFCDB.cpp
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@@ -35,6 +35,9 @@
#endif
#include <Inventor/VRMLnodes/SoVRMLGeometry.h>
#include <Inventor/VRMLnodes/SoVRMLNormal.h>
#include <Inventor/VRMLnodes/SoVRMLIndexedFaceSet.h>
#include <Inventor/VRMLnodes/SoVRMLShape.h>
#include <Inventor/fields/SoSFNode.h>
#include <Inventor/fields/SoMFNode.h>
@@ -466,6 +469,33 @@ bool Gui::SoFCDB::writeToX3D(SoNode* node, bool exportViewpoints, std::string& b
vrmlRoot->setInstancePrefix(SbString("o"));
vrmlRoot->ref();
// Search for SoVRMLIndexedFaceSet nodes and set creaseAngle to 0.5
{
SoSearchAction sa;
sa.setType(SoVRMLShape::getClassTypeId());
sa.setInterest(SoSearchAction::ALL);
sa.setSearchingAll(true);
sa.apply(vrmlRoot);
SoPathList& paths = sa.getPaths();
for (int i=0; i<paths.getLength(); i++) {
SoPath* path = paths[i];
SoVRMLShape* shape = static_cast<SoVRMLShape*>(path->getTail());
SoNode* geom = shape->geometry.getValue();
if (geom && geom->getTypeId() == SoVRMLIndexedFaceSet::getClassTypeId()) {
SoNode* norm = static_cast<SoVRMLIndexedFaceSet*>(geom)->normal.getValue();
if (norm && norm->getTypeId() == SoVRMLNormal::getClassTypeId()) {
// if empty then nullify the normal field node
if (static_cast<SoVRMLNormal*>(norm)->vector.getNum() == 0)
static_cast<SoVRMLIndexedFaceSet*>(geom)->normal.setValue(nullptr);
}
else {
static_cast<SoVRMLIndexedFaceSet*>(geom)->creaseAngle.setValue(0.5f);
}
}
}
sa.reset(); // clear the internal cache
}
std::stringstream out;
writeX3D(vrmlRoot, exportViewpoints, out);
buffer = out.str();
@@ -562,6 +592,9 @@ void Gui::SoFCDB::writeX3DFields(SoNode* node, std::map<SoNode*, std::string>& n
void Gui::SoFCDB::writeX3DChild(SoNode* node, std::map<SoNode*, std::string>& nodeMap,
int& numDEF, int spaces, std::ostream& out)
{
if (!node)
return;
// check if the node is already used
auto mapIt = nodeMap.find(node);
if (mapIt == nodeMap.end()) {
@@ -588,7 +621,7 @@ void Gui::SoFCDB::writeX3D(SoVRMLGroup* node, bool exportViewpoints, std::ostrea
" </head>\n";
std::map<SoNode*, std::string> nodeMap;
out << "<Scene>\n";
out << " <Scene>\n";
// compute a sensible view point
SoGetBoundingBoxAction bboxAction(SbViewportRegion(1280, 1024));
@@ -605,7 +638,7 @@ void Gui::SoFCDB::writeX3D(SoVRMLGroup* node, bool exportViewpoints, std::ostrea
const SbVec3f& pos, const SbRotation& rot) {
SbVec3f axis; float angle;
rot.getValue(axis, angle);
out << " <Viewpoint id=\"" << text
out << " <Viewpoint id=\"" << text
<< "\" centerOfRotation=\"" << cnt[0] << " " << cnt[1] << " " << cnt[2]
<< "\" position=\"" << pos[0] << " " << pos[1] << " " << pos[2]
<< "\" orientation=\"" << axis[0] << " " << axis[1] << " " << axis[2] << " " << angle
@@ -623,8 +656,8 @@ void Gui::SoFCDB::writeX3D(SoVRMLGroup* node, bool exportViewpoints, std::ostrea
}
int numDEF = 0;
writeX3DFields(node, nodeMap, true, numDEF, 2, out);
out << "</Scene>\n";
writeX3DFields(node, nodeMap, true, numDEF, 4, out);
out << " </Scene>\n";
out << "</X3D>\n";
}