static void selectionCallback(void * ud, SoEventCallback * cb)
{
Gui::View3DInventorViewer* view = reinterpret_cast<Gui::View3DInventorViewer*>(cb->getUserData());
view->removeEventCallback(SoMouseButtonEvent::getClassTypeId(), selectionCallback, ud);
SoNode* root = view->getSceneGraph();
static_cast<Gui::SoFCUnifiedSelection*>(root)->selectionRole.setValue(true);
std::vector<SbVec2f> picked = view->getGLPolygon();
SoCamera* cam = view->getSoRenderManager()->getCamera();
SbViewVolume vv = cam->getViewVolume();
Gui::ViewVolumeProjection proj(vv);
Base::Polygon2d polygon;
if (picked.size() == 2) {
SbVec2f pt1 = picked[0];
SbVec2f pt2 = picked[1];
polygon.Add(Base::Vector2d(pt1[0], pt1[1]));
polygon.Add(Base::Vector2d(pt1[0], pt2[1]));
polygon.Add(Base::Vector2d(pt2[0], pt2[1]));
polygon.Add(Base::Vector2d(pt2[0], pt1[1]));
}
else {
for (std::vector<SbVec2f>::const_iterator it = picked.begin(); it != picked.end(); ++it)
polygon.Add(Base::Vector2d((*it)[0],(*it)[1]));
}
FaceColors* self = reinterpret_cast<FaceColors*>(ud);
self->d->view = 0;
if (self->d->obj && self->d->obj->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId())) {
cb->setHandled();
const TopoDS_Shape& shape = static_cast<Part::Feature*>(self->d->obj)->Shape.getValue();
self->d->addFacesToSelection(view, proj, polygon, shape);
view->redraw();
}
}
void ViewProviderStructured::cut(const std::vector<SbVec2f>& picked, Gui::View3DInventorViewer &Viewer)
{
// create the polygon from the picked points
Base::Polygon2d cPoly;
for (std::vector<SbVec2f>::const_iterator it = picked.begin(); it != picked.end(); ++it) {
cPoly.Add(Base::Vector2d((*it)[0],(*it)[1]));
}
// get a reference to the point feature
Points::Feature* fea = static_cast<Points::Feature*>(pcObject);
const Points::PointKernel& points = fea->Points.getValue();
SoCamera* pCam = Viewer.getSoRenderManager()->getCamera();
SbViewVolume vol = pCam->getViewVolume();
// search for all points inside/outside the polygon
Points::PointKernel newKernel;
newKernel.reserve(points.size());
bool invalidatePoints = false;
double nan = std::numeric_limits<double>::quiet_NaN();
for (Points::PointKernel::const_iterator jt = points.begin(); jt != points.end(); ++jt) {
// valid point?
Base::Vector3d vec(*jt);
if (!(boost::math::isnan(jt->x) || boost::math::isnan(jt->y) || boost::math::isnan(jt->z))) {
SbVec3f pt(jt->x,jt->y,jt->z);
// project from 3d to 2d
vol.projectToScreen(pt, pt);
if (cPoly.Contains(Base::Vector2d(pt[0],pt[1]))) {
invalidatePoints = true;
vec.Set(nan, nan, nan);
}
}
newKernel.push_back(vec);
}
if (invalidatePoints) {
//Remove the points from the cloud and open a transaction object for the undo/redo stuff
Gui::Application::Instance->activeDocument()->openCommand("Cut points");
// sets the points outside the polygon to update the Inventor node
fea->Points.setValue(newKernel);
// unset the modified flag because we don't need the features' execute() to be called
Gui::Application::Instance->activeDocument()->commitCommand();
fea->purgeTouched();
}
}
void addFacesToSelection(Gui::View3DInventorViewer* /*viewer*/,
const Gui::ViewVolumeProjection& proj,
const Base::Polygon2d& polygon,
const TopoDS_Shape& shape)
{
try {
TopTools_IndexedMapOfShape M;
TopExp_Explorer xp_face(shape,TopAbs_FACE);
while (xp_face.More()) {
M.Add(xp_face.Current());
xp_face.Next();
}
App::Document* appdoc = doc->getDocument();
for (Standard_Integer k = 1; k <= M.Extent(); k++) {
const TopoDS_Shape& face = M(k);
TopExp_Explorer xp_vertex(face,TopAbs_VERTEX);
while (xp_vertex.More()) {
gp_Pnt p = BRep_Tool::Pnt(TopoDS::Vertex(xp_vertex.Current()));
Base::Vector3d pt2d;
pt2d = proj(Base::Vector3d(p.X(), p.Y(), p.Z()));
if (polygon.Contains(Base::Vector2d(pt2d.x, pt2d.y))) {
#if 0
// TODO
if (isVisibleFace(k-1, SbVec2f(pt2d.x, pt2d.y), viewer))
#endif
{
std::stringstream str;
str << "Face" << k;
Gui::Selection().addSelection(appdoc->getName(), obj->getNameInDocument(), str.str().c_str());
break;
}
}
xp_vertex.Next();
}
//GProp_GProps props;
//BRepGProp::SurfaceProperties(face, props);
//gp_Pnt c = props.CentreOfMass();
//Base::Vector3d pt2d;
//pt2d = proj(Base::Vector3d(c.X(), c.Y(), c.Z()));
//if (polygon.Contains(Base::Vector2d(pt2d.x, pt2d.y))) {
// if (isVisibleFace(k-1, SbVec2f(pt2d.x, pt2d.y), viewer)) {
// std::stringstream str;
// str << "Face" << k;
// Gui::Selection().addSelection(appdoc->getName(), obj->getNameInDocument(), str.str().c_str());
// }
//}
}
}
catch (...) {
}
}
void ViewProviderScattered::cut(const std::vector<SbVec2f>& picked, Gui::View3DInventorViewer &Viewer)
{
// create the polygon from the picked points
Base::Polygon2d cPoly;
for (std::vector<SbVec2f>::const_iterator it = picked.begin(); it != picked.end(); ++it) {
cPoly.Add(Base::Vector2d((*it)[0],(*it)[1]));
}
// get a reference to the point feature
Points::Feature* fea = static_cast<Points::Feature*>(pcObject);
const Points::PointKernel& points = fea->Points.getValue();
SoCamera* pCam = Viewer.getSoRenderManager()->getCamera();
SbViewVolume vol = pCam->getViewVolume();
// search for all points inside/outside the polygon
std::vector<unsigned long> removeIndices;
removeIndices.reserve(points.size());
unsigned long index = 0;
for (Points::PointKernel::const_iterator jt = points.begin(); jt != points.end(); ++jt, ++index) {
SbVec3f pt(jt->x,jt->y,jt->z);
// project from 3d to 2d
vol.projectToScreen(pt, pt);
if (cPoly.Contains(Base::Vector2d(pt[0],pt[1])))
removeIndices.push_back(index);
}
if (removeIndices.empty())
return; // nothing needs to be done
//Remove the points from the cloud and open a transaction object for the undo/redo stuff
Gui::Application::Instance->activeDocument()->openCommand("Cut points");
// sets the points outside the polygon to update the Inventor node
fea->Points.removeIndices(removeIndices);
std::map<std::string,App::Property*> Map;
pcObject->getPropertyMap(Map);
for (std::map<std::string,App::Property*>::iterator it = Map.begin(); it != Map.end(); ++it) {
Base::Type type = it->second->getTypeId();
if (type == Points::PropertyNormalList::getClassTypeId()) {
static_cast<Points::PropertyNormalList*>(it->second)->removeIndices(removeIndices);
}
else if (type == Points::PropertyGreyValueList::getClassTypeId()) {
static_cast<Points::PropertyGreyValueList*>(it->second)->removeIndices(removeIndices);
}
else if (type == App::PropertyColorList::getClassTypeId()) {
//static_cast<App::PropertyColorList*>(it->second)->removeIndices(removeIndices);
const std::vector<App::Color>& colors = static_cast<App::PropertyColorList*>(it->second)->getValues();
if (removeIndices.size() > colors.size())
break;
std::vector<App::Color> remainValue;
remainValue.reserve(colors.size() - removeIndices.size());
std::vector<unsigned long>::iterator pos = removeIndices.begin();
for (std::vector<App::Color>::const_iterator jt = colors.begin(); jt != colors.end(); ++jt) {
unsigned long index = jt - colors.begin();
if (pos == removeIndices.end())
remainValue.push_back( *jt );
else if (index != *pos)
remainValue.push_back( *jt );
else
++pos;
}
static_cast<App::PropertyColorList*>(it->second)->setValues(remainValue);
}
}
// unset the modified flag because we don't need the features' execute() to be called
Gui::Application::Instance->activeDocument()->commitCommand();
fea->purgeTouched();
}