PartDesign/Gui: rework ViewProviderDatumPlane
This commit is contained in:
Alexander Golubev
Stefan Tröger
parent
7ac1ab6a6d
commit
bceec93a92
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@ -25,28 +25,14 @@
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#ifndef _PreComp_
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# include <Inventor/nodes/SoSeparator.h>
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# include <Inventor/nodes/SoMaterial.h>
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# include <Inventor/nodes/SoCoordinate3.h>
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# include <Inventor/nodes/SoLineSet.h>
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# include <TopoDS_Vertex.hxx>
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# include <TopoDS.hxx>
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# include <BRep_Tool.hxx>
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# include <gp_Pnt.hxx>
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# include <Precision.hxx>
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# include <Geom_Plane.hxx>
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# include <Geom_Line.hxx>
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# include <GeomAPI_IntCS.hxx>
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#endif
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#include "ViewProviderDatumPlane.h"
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#include "TaskDatumParameters.h"
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#include <Mod/PartDesign/App/DatumPlane.h>
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#include <Mod/Part/Gui/SoBrepFaceSet.h>
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#include <Mod/Part/Gui/SoBrepEdgeSet.h>
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#include <Mod/Part/Gui/SoBrepPointSet.h>
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#include <Gui/Control.h>
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#include <Gui/Command.h>
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#include <Gui/Application.h>
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#include <Mod/PartDesign/App/DatumPlane.h>
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#include "ViewProviderDatumPlane.h"
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using namespace PartDesignGui;
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@ -55,11 +41,49 @@ PROPERTY_SOURCE(PartDesignGui::ViewProviderDatumPlane,PartDesignGui::ViewProvide
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ViewProviderDatumPlane::ViewProviderDatumPlane()
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{
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sPixmap = "PartDesign_Plane.svg";
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pCoords = new SoCoordinate3();
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pCoords->ref ();
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}
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ViewProviderDatumPlane::~ViewProviderDatumPlane()
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{
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pCoords->unref ();
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}
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void ViewProviderDatumPlane::attach ( App::DocumentObject *obj ) {
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ViewProviderDatum::attach ( obj );
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ViewProviderDatum::setExtents ( defaultBoundBox () );
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getShapeRoot ()->addChild(pCoords);
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PartGui::SoBrepEdgeSet* lineSet = new PartGui::SoBrepEdgeSet();
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lineSet->coordIndex.setNum(6);
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lineSet->coordIndex.set1Value(0, 0);
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lineSet->coordIndex.set1Value(1, 1);
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lineSet->coordIndex.set1Value(2, 2);
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lineSet->coordIndex.set1Value(3, 3);
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lineSet->coordIndex.set1Value(4, 0);
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lineSet->coordIndex.set1Value(5, SO_END_LINE_INDEX);
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getShapeRoot ()->addChild(lineSet);
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PartGui::SoBrepFaceSet *faceSet = new PartGui::SoBrepFaceSet();
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// SoBrepFaceSet supports only triangles (otherwice we recive incorrect highlighting
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faceSet->partIndex.set1Value(0, 2); // One face, two triangles
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faceSet->coordIndex.setNum(8);
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// first triangle
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faceSet->coordIndex.set1Value(0, 0);
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faceSet->coordIndex.set1Value(1, 1);
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faceSet->coordIndex.set1Value(2, 2);
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faceSet->coordIndex.set1Value(3, SO_END_FACE_INDEX);
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// second triangle
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faceSet->coordIndex.set1Value(4, 2);
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faceSet->coordIndex.set1Value(5, 3);
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faceSet->coordIndex.set1Value(6, 0);
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faceSet->coordIndex.set1Value(7, SO_END_FACE_INDEX);
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getShapeRoot ()->addChild(faceSet);
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}
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void ViewProviderDatumPlane::updateData(const App::Property* prop)
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@ -78,178 +102,21 @@ void ViewProviderDatumPlane::updateData(const App::Property* prop)
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void ViewProviderDatumPlane::setExtents (Base::BoundBox3d bbox) {
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PartDesign::Plane* pcDatum = static_cast<PartDesign::Plane*>(this->getObject());
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Base::Placement plm = pcDatum->Placement.getValue();
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Base::Placement plm = pcDatum->Placement.getValue ().inverse ();
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plm.invert();
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Base::Vector3d base(0,0,0);
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Base::Vector3d normal(0,0,1);
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// Transform the box to the line's coordinates, the result line will be larger than the bbox
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bbox = bbox.Transformed ( plm.toMatrix() );
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// Add origin of the plane to the box if it's not
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bbox.Add ( Base::Vector3d (0, 0, 0) );
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// Get limits of the plane from bounding box of the body
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bbox = bbox.Transformed(plm.toMatrix());
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double dlength = bbox.CalcDiagonalLength();
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if (dlength < Precision::Confusion())
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return;
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bbox.Enlarge(0.1 * dlength);
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double marging = sqrt(bbox.LengthX ()*bbox.LengthY ()) * margingFactor ();
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// Calculate intersection of plane with bounding box edges
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// TODO: This can be a lot more efficient if we do the maths ourselves, e.g.
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// http://cococubed.asu.edu/code_pages/raybox.shtml
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// http://www.fho-emden.de/~hoffmann/cubeplane12112006.pdf
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Handle_Geom_Plane plane = new Geom_Plane(gp_Pnt(base.x, base.y, base.z), gp_Dir(normal.x, normal.y, normal.z));
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std::vector<Base::Vector3d> points;
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// Change the coordinates of the line
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pCoords->point.setNum (4);
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pCoords->point.set1Value(0, bbox.MaxX + marging, bbox.MaxY + marging, 0 );
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pCoords->point.set1Value(1, bbox.MinX - marging, bbox.MaxY + marging, 0 );
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pCoords->point.set1Value(2, bbox.MinX - marging, bbox.MinY - marging, 0 );
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pCoords->point.set1Value(3, bbox.MaxX + marging, bbox.MinY - marging, 0 );
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for (int i = 0; i < 12; i++) {
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// Get the edge of the bounding box
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Base::Vector3d p1, p2;
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bbox.CalcEdge(i, p1, p2);
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Base::Vector3d ldir = p2 - p1;
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Handle_Geom_Line line = new Geom_Line(gp_Pnt(p1.x, p1.y, p1.z), gp_Dir(ldir.x, ldir.y, ldir.z));
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GeomAPI_IntCS intersector(line, plane);
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if (!intersector.IsDone() || (intersector.NbPoints() == 0))
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continue;
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gp_Pnt pnt = intersector.Point(1);
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Base::Vector3d point(pnt.X(), pnt.Y(), pnt.Z());
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// Check whether intersection is on the bbox edge (bbox.IsInside() always tests false)
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double edgeLength = (p1 - p2).Length();
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double l1 = (p1 - point).Length();
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double l2 = (p2 - point).Length();
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if (fabs(edgeLength - l1 - l2) > 0.001)
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continue;
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// Check for duplicates
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bool duplicate = false;
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for (std::vector<Base::Vector3d>::const_iterator p = points.begin(); p != points.end(); p++) {
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if ((point - *p).Sqr() < Precision::Confusion()) {
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duplicate = true;
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break;
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}
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}
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if (!duplicate)
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points.push_back(point);
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}
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if (points.size() < 3)
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return;
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// Sort the points to get a proper polygon, see http://www.fho-emden.de/~hoffmann/cubeplane12112006.pdf p.5
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if (points.size() > 3) {
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// Longest component of normal vector
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int longest;
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if (normal.x > normal.y)
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if (normal.x > normal.z)
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longest = 0; // x is longest
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else
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longest = 2; // z is longest
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else
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if (normal.y > normal.z)
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longest = 1; // y is longest
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else
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longest = 2; // z is longest
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// mean value for intersection points
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Base::Vector3d m;
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for (std::vector<Base::Vector3d>::iterator p = points.begin(); p != points.end(); p++)
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m += *p;
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m /= points.size();
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// Sort by angles
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std::vector<double> a(points.size());
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for (unsigned int i = 0; i < points.size() - 1; i++) {
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if (longest == 0)
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a[i] = atan2(points[i].z - m.z, points[i].y - m.y);
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else if (longest == 1)
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a[i] = atan2(points[i].z - m.z, points[i].x - m.x);
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else
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a[i] = atan2(points[i].y - m.y, points[i].x - m.x);
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for (unsigned int k = i+1; k < points.size(); k++) {
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if (longest == 0)
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a[k] = atan2(points[k].z - m.z, points[k].y - m.y);
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else if (longest == 1)
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a[k] = atan2(points[k].z - m.z, points[k].x - m.x);
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else
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a[k] = atan2(points[k].y - m.y, points[k].x - m.x);
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if (a[k] < a[i]) {
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Base::Vector3d temp = points[i];
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points[i] = points[k];
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points[k] = temp;
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a[i] = a[k];
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}
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}
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}
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}
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// Display the plane
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// Note: To achieve different colours on the two sides of the plane, see:
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// http://doc.coin3d.org/Coin/classSoIndexedFaceSet.html
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SoCoordinate3* coord;
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PartGui::SoBrepFaceSet* faceSet;
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SoIndexedLineSet* lineSet;
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if (getShapeRoot ()->getNumChildren() == 0) {
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// The polygon must be split up into triangles because the SoBRepFaceSet only handles those
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if (points.size() < 3)
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return;
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coord = new SoCoordinate3();
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coord->point.setNum(points.size());
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for (unsigned int p = 0; p < points.size(); p++)
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coord->point.set1Value(p, points[p].x, points[p].y, points[p].z);
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getShapeRoot ()->addChild(coord);
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faceSet = new PartGui::SoBrepFaceSet();
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faceSet->partIndex.setNum(1); // One face
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faceSet->partIndex.set1Value(0, points.size()-3 + 1); // with this many triangles
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faceSet->coordIndex.setNum(4 + 4*(points.size()-3));
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// The first triangle
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faceSet->coordIndex.set1Value(0, 0);
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faceSet->coordIndex.set1Value(1, 1);
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faceSet->coordIndex.set1Value(2, 2);
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faceSet->coordIndex.set1Value(3, SO_END_FACE_INDEX);
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// One more triangle for every extra polygon point
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for (unsigned int p = 3; p < points.size(); p++) {
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faceSet->coordIndex.set1Value(4 + 4*(p-3), 0);
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faceSet->coordIndex.set1Value(4 + 4*(p-3) + 1, p-1);
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faceSet->coordIndex.set1Value(4 + 4*(p-3) + 2, p);
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faceSet->coordIndex.set1Value(4 + 4*(p-3) + 3, SO_END_FACE_INDEX);
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}
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getShapeRoot ()->addChild(faceSet);
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lineSet = new SoIndexedLineSet();
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lineSet->coordIndex.setNum(points.size()+2);
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for (unsigned int p = 0; p < points.size(); p++)
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lineSet->coordIndex.set1Value(p, p);
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lineSet->coordIndex.set1Value(points.size(), 0);
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lineSet->coordIndex.set1Value(points.size()+1, SO_END_LINE_INDEX);
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getShapeRoot ()->addChild(lineSet);
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} else {
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coord = static_cast<SoCoordinate3*>(getShapeRoot ()->getChild(0));
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coord->point.setNum(points.size());
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for (unsigned int p = 0; p < points.size(); p++)
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coord->point.set1Value(p, points[p].x, points[p].y, points[p].z);
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faceSet = static_cast<PartGui::SoBrepFaceSet*>(getShapeRoot ()->getChild(1));
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faceSet->partIndex.setNum(1); // One face
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faceSet->partIndex.set1Value(0, points.size()-3 + 1); // with this many triangles
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faceSet->coordIndex.setNum(4 + 4*(points.size()-3));
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// The first triangle
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faceSet->coordIndex.set1Value(0, 0);
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faceSet->coordIndex.set1Value(1, 1);
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faceSet->coordIndex.set1Value(2, 2);
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faceSet->coordIndex.set1Value(3, SO_END_FACE_INDEX);
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// One more triangle for every extra polygon point
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for (unsigned int p = 3; p < points.size(); p++) {
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faceSet->coordIndex.set1Value(4 + 4*(p-3), 0);
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faceSet->coordIndex.set1Value(4 + 4*(p-3) + 1, p-1);
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faceSet->coordIndex.set1Value(4 + 4*(p-3) + 2, p);
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faceSet->coordIndex.set1Value(4 + 4*(p-3) + 3, SO_END_FACE_INDEX);
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}
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lineSet = static_cast<SoIndexedLineSet*>(getShapeRoot ()->getChild(2));
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lineSet->coordIndex.setNum(points.size()+2);
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for (unsigned int p = 0; p < points.size(); p++)
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lineSet->coordIndex.set1Value(p, p);
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lineSet->coordIndex.set1Value(points.size(), 0);
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lineSet->coordIndex.set1Value(points.size()+1, SO_END_LINE_INDEX);
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}
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}
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@ -38,9 +38,13 @@ public:
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ViewProviderDatumPlane();
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virtual ~ViewProviderDatumPlane();
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virtual void attach ( App::DocumentObject *obj );
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virtual void updateData(const App::Property*);
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void setExtents (Base::BoundBox3d bbox);
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private:
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SoCoordinate3 *pCoords;
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};
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} // namespace PartDesignGui
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