float SoZoomTranslation::getScaleFactor()
{
// Dividing by 5 seems to work well
Gui::MDIView *mdi = Gui::Application::Instance->activeDocument()->getActiveView();
if (mdi && mdi->isDerivedFrom(Gui::View3DInventor::getClassTypeId())) {
Gui::View3DInventorViewer *viewer = static_cast<Gui::View3DInventor *>(mdi)->getViewer();
this->scale = viewer->getCamera()->getViewVolume(viewer->getCamera()->aspectRatio.getValue()).getWorldToScreenScale(SbVec3f(0.f, 0.f, 0.f), 0.1f) / 5;
return this->scale;
} else {
return this->scale;
}
}
void MeshFillHole::startEditing(MeshGui::ViewProviderMesh* vp)
{
this->myMesh = static_cast<Mesh::Feature*>(vp->getObject());
Gui::View3DInventor* view = static_cast<Gui::View3DInventor*>(parent());
Gui::View3DInventorViewer* viewer = view->getViewer();
viewer->setEditing(true);
//viewer->setRedirectToSceneGraph(true);
viewer->addEventCallback(SoEvent::getClassTypeId(),
MeshFillHole::fileHoleCallback, this);
myConnection = App::GetApplication().signalChangedObject.connect(
boost::bind(&MeshFillHole::slotChangedObject, this, _1, _2));
myBoundariesRoot->removeAllChildren();
myBoundariesRoot->addChild(viewer->getHeadlight());
myBoundariesRoot->addChild(viewer->getCamera());
myBoundariesRoot->addChild(myBoundariesGroup);
myBoundaryRoot->removeAllChildren();
myBoundaryRoot->addChild(viewer->getHeadlight());
myBoundaryRoot->addChild(viewer->getCamera());
createPolygons();
static_cast<SoGroup*>(viewer->getSceneGraph())->addChild(myBridgeRoot);
}
bool ViewProviderMeshNode::handleEvent(const SoEvent * const ev,Gui::View3DInventorViewer &Viewer)
{
if ( m_bEdit )
{
unsetEdit();
std::vector<SbVec2f> clPoly = Viewer.getPickedPolygon();
if ( clPoly.size() < 3 )
return true;
if ( clPoly.front() != clPoly.back() )
clPoly.push_back(clPoly.front());
// get the normal of the front clipping plane
SbVec3f b,n;
Viewer.getNearPlane(b, n);
Base::Vector3f cPoint(b[0],b[1],b[2]), cNormal(n[0],n[1],n[2]);
SoCamera* pCam = Viewer.getCamera();
SbViewVolume vol = pCam->getViewVolume ();
// create a tool shape from these points
std::vector<MeshCore::MeshGeomFacet> aFaces;
bool ok = ViewProviderMesh::createToolMesh( clPoly, vol, cNormal, aFaces );
// Get the attached mesh property
Mesh::PropertyMeshKernel& meshProp = ((Mesh::Feature*)pcObject)->Mesh;
// Get the facet indices inside the tool mesh
std::vector<unsigned long> indices;
MeshCore::MeshKernel cToolMesh;
cToolMesh = aFaces;
MeshCore::MeshFacetGrid cGrid(meshProp.getValue().getKernel());
MeshCore::MeshAlgorithm cAlg(meshProp.getValue().getKernel());
cAlg.GetFacetsFromToolMesh(cToolMesh, cNormal, cGrid, indices);
meshProp.deleteFacetIndices( indices );
// update open edge display if needed
// if ( pcOpenEdge )
// {
// showOpenEdges(false);
// showOpenEdges(true);
// }
Viewer.render();
if ( !ok ) // note: the mouse grabbing needs to be released
//QMessageBox::warning(Viewer.getWidget(),"Invalid polygon","The picked polygon seems to have self-overlappings.\n\nThis could lead to strange rersults.");
Base::Console().Message("The picked polygon seems to have self-overlappings. This could lead to strange results.");
}
return false;
}
void Command::adjustCameraPosition()
{
Gui::Document* doc = Gui::Application::Instance->activeDocument();
if (doc) {
Gui::View3DInventor* view = static_cast<Gui::View3DInventor*>(doc->getActiveView());
Gui::View3DInventorViewer* viewer = view->getViewer();
SoCamera* camera = viewer->getCamera();
if (!camera || !camera->isOfType(SoOrthographicCamera::getClassTypeId()))
return;
// get scene bounding box
SoGetBoundingBoxAction action(viewer->getViewportRegion());
action.apply(viewer->getSceneGraph());
SbBox3f box = action.getBoundingBox();
if (box.isEmpty()) return;
// get cirumscribing sphere and check if camera is inside
SbVec3f cam_pos = camera->position.getValue();
SbVec3f box_cnt = box.getCenter();
SbSphere bs;
bs.circumscribe(box);
float radius = bs.getRadius();
float distance_to_midpoint = (box_cnt-cam_pos).length();
if (radius >= distance_to_midpoint) {
// Move the camera to the edge of the bounding sphere, while still
// pointing at the scene.
SbVec3f direction = cam_pos - box_cnt;
(void) direction.normalize(); // we know this is not a null vector
camera->position.setValue(box_cnt + direction * radius);
// New distance to mid point
distance_to_midpoint =
(camera->position.getValue() - box.getCenter()).length();
camera->nearDistance = distance_to_midpoint - radius;
camera->farDistance = distance_to_midpoint + radius;
camera->focalDistance = distance_to_midpoint;
}
}
}
void DefineNodesCallback(void * ud, SoEventCallback * n)
{
Fem::FemAnalysis *Analysis;
if(getConstraintPrerequisits(&Analysis))
return;
// show the wait cursor because this could take quite some time
Gui::WaitCursor wc;
// When this callback function is invoked we must in either case leave the edit mode
Gui::View3DInventorViewer* view = reinterpret_cast<Gui::View3DInventorViewer*>(n->getUserData());
view->setEditing(false);
view->removeEventCallback(SoMouseButtonEvent::getClassTypeId(), DefineNodesCallback,ud);
n->setHandled();
SbBool clip_inner;
std::vector<SbVec2f> clPoly = view->getGLPolygon(&clip_inner);
if (clPoly.size() < 3)
return;
if (clPoly.front() != clPoly.back())
clPoly.push_back(clPoly.front());
SoCamera* cam = view->getCamera();
SbViewVolume vv = cam->getViewVolume();
Gui::ViewVolumeProjection proj(vv);
Base::Polygon2D polygon;
for (std::vector<SbVec2f>::const_iterator it = clPoly.begin(); it != clPoly.end(); ++it)
polygon.Add(Base::Vector2D((*it)[0],(*it)[1]));
std::vector<App::DocumentObject*> docObj = Gui::Selection().getObjectsOfType(Fem::FemMeshObject::getClassTypeId());
if(docObj.size() !=1)
return;
const SMESHDS_Mesh* data = const_cast<SMESH_Mesh*>(dynamic_cast<Fem::FemMeshObject*>(docObj[0])->FemMesh.getValue().getSMesh())->GetMeshDS();
SMDS_NodeIteratorPtr aNodeIter = data->nodesIterator();
Base::Vector3f pt2d;
std::set<int> IntSet;
for (int i=0;aNodeIter->more();) {
const SMDS_MeshNode* aNode = aNodeIter->next();
Base::Vector3f vec(aNode->X(),aNode->Y(),aNode->Z());
pt2d = proj(vec);
if (polygon.Contains(Base::Vector2D(pt2d.x, pt2d.y)) == true)
IntSet.insert(aNode->GetID());
}
std::stringstream set;
set << "[";
for(std::set<int>::const_iterator it=IntSet.begin();it!=IntSet.end();++it)
if(it==IntSet.begin())
set << *it ;
else
set << "," << *it ;
set << "]";
Gui::Command::openCommand("Place robot");
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.addObject('Fem::FemSetNodesObject','NodeSet')");
Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.ActiveObject.Nodes = %s",set.str().c_str());
Gui::Command::doCommand(Gui::Command::Doc,"App.activeDocument().%s.Member = App.activeDocument().%s.Member + [App.activeDocument().NodeSet]",Analysis->getNameInDocument(),Analysis->getNameInDocument());
////Gui::Command::updateActive();
Gui::Command::commitCommand();
//std::vector<Gui::ViewProvider*> views = view->getViewProvidersOfType(ViewProviderMesh::getClassTypeId());
//if (!views.empty()) {
// Gui::Application::Instance->activeDocument()->openCommand("Cut");
// for (std::vector<Gui::ViewProvider*>::iterator it = views.begin(); it != views.end(); ++it) {
// ViewProviderMesh* that = static_cast<ViewProviderMesh*>(*it);
// if (that->getEditingMode() > -1) {
// that->finishEditing();
// that->cutMesh(clPoly, *view, clip_inner);
// }
// }
// Gui::Application::Instance->activeDocument()->commitCommand();
// view->render();
//}
}
void MeshSelection::selectGLCallback(void * ud, SoEventCallback * n)
{
// When this callback function is invoked we must leave the edit mode
Gui::View3DInventorViewer* view = reinterpret_cast<Gui::View3DInventorViewer*>(n->getUserData());
MeshSelection* self = reinterpret_cast<MeshSelection*>(ud);
self->stopInteractiveCallback(view);
n->setHandled();
std::vector<SbVec2f> polygon = view->getGLPolygon();
if (polygon.size() < 3)
return;
if (polygon.front() != polygon.back())
polygon.push_back(polygon.front());
SbVec3f pnt, dir;
view->getNearPlane(pnt, dir);
Base::Vector3f point (pnt[0],pnt[1],pnt[2]);
Base::Vector3f normal(dir[0],dir[1],dir[2]);
std::list<ViewProviderMesh*> views = self->getViewProviders();
for (std::list<ViewProviderMesh*>::iterator it = views.begin(); it != views.end(); ++it) {
ViewProviderMesh* vp = static_cast<ViewProviderMesh*>(*it);
std::vector<unsigned long> faces;
const Mesh::MeshObject& mesh = static_cast<Mesh::Feature*>((*it)->getObject())->Mesh.getValue();
const MeshCore::MeshKernel& kernel = mesh.getKernel();
// simply get all triangles under the polygon
SoCamera* cam = view->getCamera();
SbViewVolume vv = cam->getViewVolume();
Gui::ViewVolumeProjection proj(vv);
vp->getFacetsFromPolygon(polygon, proj, true, faces);
if (self->onlyVisibleTriangles) {
const SbVec2s& sz = view->getViewportRegion().getWindowSize();
short width,height; sz.getValue(width,height);
std::vector<SbVec2s> pixelPoly = view->getPolygon();
SbBox2s rect;
for (std::vector<SbVec2s>::iterator it = pixelPoly.begin(); it != pixelPoly.end(); ++it) {
const SbVec2s& p = *it;
rect.extendBy(SbVec2s(p[0],height-p[1]));
}
std::vector<unsigned long> rf; rf.swap(faces);
std::vector<unsigned long> vf = vp->getVisibleFacetsAfterZoom
(rect, view->getViewportRegion(), view->getCamera());
// get common facets of the viewport and the visible one
std::sort(vf.begin(), vf.end());
std::sort(rf.begin(), rf.end());
std::back_insert_iterator<std::vector<unsigned long> > biit(faces);
std::set_intersection(vf.begin(), vf.end(), rf.begin(), rf.end(), biit);
}
// if set filter out all triangles which do not point into user direction
if (self->onlyPointToUserTriangles) {
std::vector<unsigned long> screen;
screen.reserve(faces.size());
MeshCore::MeshFacetIterator it_f(kernel);
for (std::vector<unsigned long>::iterator it = faces.begin(); it != faces.end(); ++it) {
it_f.Set(*it);
if (it_f->GetNormal() * normal > 0.0f) {
screen.push_back(*it);
}
}
faces.swap(screen);
}
if (self->addToSelection)
vp->addSelection(faces);
else
vp->removeSelection(faces);
}
view->render();
}