OSG::NodePtr makePolygon(double pntData[][3], int numPoints) {
OSG::GeometryPtr geoPtr = OSG::Geometry::create();
OSG::NodePtr nodePtr = OSG::Node::create();
GeoPositions3fPtr pnts = GeoPositions3f::create();
GeoNormals3fPtr norms = GeoNormals3f::create();
GeoTexCoords2fPtr tex = GeoTexCoords2f::create();
GeoIndicesUI32Ptr indices = GeoIndicesUI32::create();
GeoPLengthsUI32Ptr lens = GeoPLengthsUI32::create();
GeoPTypesUI8Ptr types = GeoPTypesUI8::create();
//Set up the properties according to the geometry defined above
beginEditCP(pnts);
beginEditCP(norms);
for(int i = 0; i < numPoints; i++)
{
pnts->push_back(Pnt3f(pntData[i][0],
pntData[i][1],
pntData[i][2]));
indices->push_back(2*i);
norms->push_back(Vec3f(0.0, 0.0, pntData[i][2]));
indices->push_back(2*i + 1);
}
endEditCP(pnts);
endEditCP(norms);
beginEditCP(types);
beginEditCP(lens);
types->push_back(GL_POLYGON);
lens->push_back(numPoints);
endEditCP(types);
endEditCP(lens);
beginEditCP(geoPtr);
geoPtr->setMaterial(getDefaultMaterial());
geoPtr->setPositions(pnts);
geoPtr->setNormals(norms);
geoPtr->setIndices(indices);
geoPtr->editMFIndexMapping()->push_back(Geometry::MapPosition |
Geometry::MapNormal);
geoPtr->setTypes(types);
geoPtr->setLengths(lens);
endEditCP(geoPtr);
nodePtr->setCore(geoPtr);
return nodePtr;
}
// This implementation is adapted from
// OSG::SimpleSceneManager::highlightChanged() in OpenSG 1.4.0.
void OpenSGNavGrab::initHighlight()
{
if ( mHighlightMaterial == OSG::NullFC )
{
mHighlightMaterial = OSG::SimpleMaterial::create();
#if OSG_MAJOR_VERSION < 2
CPEdit(mHighlightMaterial, OSG::SimpleMaterial::LitFieldMask);
#endif
mHighlightMaterial->setLit(false);
}
if ( mHighlightNode == OSG::NullFC )
{
#if OSG_MAJOR_VERSION < 2
OSG::GeoPTypesPtr type = OSG::GeoPTypesUI8::create();
OSG::GeoPLengthsPtr lens = OSG::GeoPLengthsUI32::create();
#else
OSG::GeoPTypesUI8Ptr type = OSG::GeoPTypesUI8::create();
OSG::GeoPLengthsUI32Ptr lens = OSG::GeoPLengthsUI32::create();
#endif
OSG::GeoIndicesUI32Ptr index = OSG::GeoIndicesUI32::create();
mHighlightPoints = OSG::GeoPositions3f::create();
OSG::GeometryPtr geo = OSG::Geometry::create();
mHighlightNode = OSG::Node::create();
#if OSG_MAJOR_VERSION < 2
CPEditAll(type);
CPEditAll(lens);
CPEditAll(index);
CPEditAll(mHighlightPoints);
CPEditAll(geo);
CPEdit(mHighlightNode, OSG::Node::CoreFieldMask);
#endif
type->push_back(GL_LINE_STRIP);
type->push_back(GL_LINES);
lens->push_back(10);
lens->push_back(6);
#if OSG_MAJOR_VERSION < 2
OSG::GeoIndicesUI32::StoredFieldType* index_field =
index->getFieldPtr();
#else
OSG::GeoIndicesUI32::StoredFieldType* index_field =
index->editFieldPtr();
#endif
index_field->push_back(0);
index_field->push_back(1);
index_field->push_back(3);
index_field->push_back(2);
index_field->push_back(0);
index_field->push_back(4);
index_field->push_back(5);
index_field->push_back(7);
index_field->push_back(6);
index_field->push_back(4);
index_field->push_back(1);
index_field->push_back(5);
index_field->push_back(2);
index_field->push_back(6);
index_field->push_back(3);
index_field->push_back(7);
mHighlightPoints->push_back(OSG::Pnt3f(-1, -1, -1));
mHighlightPoints->push_back(OSG::Pnt3f( 1, -1, -1));
mHighlightPoints->push_back(OSG::Pnt3f(-1, 1, -1));
mHighlightPoints->push_back(OSG::Pnt3f( 1, 1, -1));
mHighlightPoints->push_back(OSG::Pnt3f(-1, -1, 1));
mHighlightPoints->push_back(OSG::Pnt3f( 1, -1, 1));
mHighlightPoints->push_back(OSG::Pnt3f(-1, 1, 1));
mHighlightPoints->push_back(OSG::Pnt3f( 1, 1, 1));
geo->setTypes(type);
geo->setLengths(lens);
geo->setIndices(index);
geo->setPositions(mHighlightPoints);
geo->setMaterial(mHighlightMaterial);
mHighlightNode->setCore(geo);
}
}