void HxGLSLVertexView::compute()
{
// data has changed ?
if (portData.isNew())
{
HxVertexSet* data = hxconnection_cast<HxVertexSet>(portData);
if (data)
{
m_p_vertexProperty->vertex.setValuesPointer(data->getNumPoints(), (SbVec3f*)data->getCoords());
showGeom(m_p_root);
}
else
{
m_p_vertexProperty->vertex.setNum(0);
hideGeom(m_p_root);
}
}
if (portSphereScale.isNew())
{
m_p_sphereSizeParameter->value = portSphereScale.getValue();
}
}
void MyDisplayVertices1::compute()
{
int i;
// Access input object (portData is inherited from HxModule):
HxSurface* surface = (HxSurface*) portData.source();
if (!surface) { // Check if input object is available
hideGeom(scene);
return;
}
// Get value from input port, query size of surface:
int numTriPerVertex = portNumTriangles.getValue();
int nVertices = surface->points.size();
int nTriangles = surface->triangles.size();
// We need a triangle counter for every vertex:
McDArray<unsigned short> triCount(nVertices);
triCount.fill(0);
// Loop through all triangles and increase counter of the vertices:
for (i=0; i<nTriangles; i++)
for (int j=0; j<3; j++)
triCount[surface->triangles[i].points[j]]++;
// Now create the scene graph. First remove all previous childs:
scene->removeAllChildren();
// Cube size should be 1% of the diagonal of the bounding box.
float size = surface->getBoundingBoxSize().length() * 0.01;
// Pointer to surface coordinates casted from McVec3f to SbVec3f.
SbVec3f* p = (SbVec3f*) surface->points.dataPtr();
SbVec3f q(0,0,0); // position of last point
int count = 0; // vertex counter
for (i=0; i<nVertices; i++) {
if (triCount[i] == numTriPerVertex) {
SoTranslation* trans = new SoTranslation;
trans->translation.setValue(p[i]-q);
SoCube* cube = new SoCube;
cube->width = cube->height = cube->depth = size;
scene->addChild(trans);
scene->addChild(cube);
count++;
q=p[i];
}
}
theMsg->printf("Found %d vertices belonging to %d triangles",
count, numTriPerVertex);
showGeom(scene); // finally show scene in viewer
}