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();
        }
    }
Esempio n. 2
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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();
    }
}
Esempio n. 3
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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();
}