GeometryTransitPtr createPathGeometry(const std::vector<Pnt3f>& Path)
{
//*******************Create the Geometry for the box
GeoUInt8PropertyRecPtr type = GeoUInt8Property::create();
//Volume bound box
type->push_back(GL_LINE_STRIP);
GeoUInt32PropertyRefPtr lens = GeoUInt32Property::create();
//Volume bound box
lens->push_back(Path.size());
Color3f CoolColor(0.0f,0.0f,1.0f),
HotColor(1.0f,0.0f,0.0f);
GeoUInt32PropertyRefPtr index = GeoUInt32Property::create();
GeoPnt3fPropertyRefPtr points = GeoPnt3fProperty::create();
GeoVec3fPropertyRefPtr colors = GeoVec3fProperty::create();
//Volume bound box
Color3f Color;
Real32 t;
for(UInt32 i(0) ; i<Path.size() ; ++i)
{
t = static_cast<Real32>(i)/static_cast<Real32>(Path.size());
Color = (t*CoolColor) + ((1.0f-t)*HotColor);
index->push_back(i);
points->push_back(Path[i]);
colors->push_back(Color);
}
GeometryRecPtr PathGeo = Geometry::create();
PathGeo->setTypes (type);
PathGeo->setLengths (lens);
PathGeo->setIndices (index);
PathGeo->setPositions (points);
PathGeo->setColors (colors);
//Create the material for the line
LineChunkRecPtr DefaultLineChunk = LineChunk::create();
DefaultLineChunk->setWidth(2.0f);
MaterialChunkRecPtr DefaultMaterialChunk = MaterialChunk::create();
DefaultMaterialChunk->setLit(false);
ChunkMaterialRecPtr DefaultChunkMaterial = ChunkMaterial::create();
DefaultChunkMaterial->addChunk(DefaultMaterialChunk);
DefaultChunkMaterial->addChunk(DefaultLineChunk);
PathGeo->setMaterial(DefaultChunkMaterial);
return GeometryTransitPtr(PathGeo);
}
