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SketchObject.cpp
2701 lines (2351 loc) · 112 KB
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SketchObject.cpp
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/***************************************************************************
* Copyright (c) Jürgen Riegel (juergen.riegel@web.de) 2008 *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
# include <TopoDS_Shape.hxx>
# include <TopoDS_Face.hxx>
# include <TopoDS.hxx>
# include <TopExp_Explorer.hxx>
# include <gp_Pln.hxx>
# include <gp_Ax3.hxx>
# include <gp_Circ.hxx>
# include <gp_Elips.hxx>
# include <BRepAdaptor_Surface.hxx>
# include <BRepAdaptor_Curve.hxx>
# include <BRep_Tool.hxx>
# include <Geom_Plane.hxx>
# include <Geom_Circle.hxx>
# include <Geom_Ellipse.hxx>
# include <Geom_TrimmedCurve.hxx>
# include <GeomAPI_ProjectPointOnSurf.hxx>
# include <BRepOffsetAPI_NormalProjection.hxx>
# include <BRepBuilderAPI_MakeFace.hxx>
# include <Standard_Version.hxx>
#endif
#include <Base/Writer.h>
#include <Base/Reader.h>
#include <Base/Tools.h>
#include <Base/Console.h>
#include <Mod/Part/App/Geometry.h>
#include <vector>
#include "SketchObject.h"
#include "SketchObjectPy.h"
#include "Sketch.h"
using namespace Sketcher;
using namespace Base;
PROPERTY_SOURCE(Sketcher::SketchObject, Part::Part2DObject)
SketchObject::SketchObject()
{
ADD_PROPERTY_TYPE(Geometry, (0) ,"Sketch",(App::PropertyType)(App::Prop_None),"Sketch geometry");
ADD_PROPERTY_TYPE(Constraints, (0) ,"Sketch",(App::PropertyType)(App::Prop_None),"Sketch constraints");
ADD_PROPERTY_TYPE(ExternalGeometry,(0,0),"Sketch",(App::PropertyType)(App::Prop_None),"Sketch external geometry");
for (std::vector<Part::Geometry *>::iterator it=ExternalGeo.begin(); it != ExternalGeo.end(); ++it)
if (*it) delete *it;
ExternalGeo.clear();
Part::GeomLineSegment *HLine = new Part::GeomLineSegment();
Part::GeomLineSegment *VLine = new Part::GeomLineSegment();
HLine->setPoints(Base::Vector3d(0,0,0),Base::Vector3d(1,0,0));
VLine->setPoints(Base::Vector3d(0,0,0),Base::Vector3d(0,1,0));
HLine->Construction = true;
VLine->Construction = true;
ExternalGeo.push_back(HLine);
ExternalGeo.push_back(VLine);
rebuildVertexIndex();
}
SketchObject::~SketchObject()
{
for (std::vector<Part::Geometry *>::iterator it=ExternalGeo.begin(); it != ExternalGeo.end(); ++it)
if (*it) delete *it;
ExternalGeo.clear();
}
App::DocumentObjectExecReturn *SketchObject::execute(void)
{
try {
this->positionBySupport();
}
catch (const Base::Exception& e) {
return new App::DocumentObjectExecReturn(e.what());
}
// setup and diagnose the sketch
try {
rebuildExternalGeometry();
}
catch (const Base::Exception& e) {
Base::Console().Error("%s\nClear constraints to external geometry\n", e.what());
// we cannot trust the constraints of external geometries, so remove them
delConstraintsToExternal();
}
Sketch sketch;
int dofs = sketch.setUpSketch(getCompleteGeometry(), Constraints.getValues(),
getExternalGeometryCount());
if (dofs < 0) { // over-constrained sketch
std::string msg="Over-constrained sketch\n";
appendConflictMsg(sketch.getConflicting(), msg);
return new App::DocumentObjectExecReturn(msg.c_str(),this);
}
if (sketch.hasConflicts()) { // conflicting constraints
std::string msg="Sketch with conflicting constraints\n";
appendConflictMsg(sketch.getConflicting(), msg);
return new App::DocumentObjectExecReturn(msg.c_str(),this);
}
if (sketch.hasRedundancies()) { // redundant constraints
std::string msg="Sketch with redundant constraints\n";
appendRedundantMsg(sketch.getRedundant(), msg);
return new App::DocumentObjectExecReturn(msg.c_str(),this);
}
// solve the sketch
if (sketch.solve() != 0)
return new App::DocumentObjectExecReturn("Solving the sketch failed",this);
std::vector<Part::Geometry *> geomlist = sketch.extractGeometry();
Geometry.setValues(geomlist);
for (std::vector<Part::Geometry *>::iterator it=geomlist.begin(); it != geomlist.end(); ++it)
if (*it) delete *it;
Shape.setValue(sketch.toShape());
return App::DocumentObject::StdReturn;
}
int SketchObject::hasConflicts(void) const
{
// set up a sketch (including dofs counting and diagnosing of conflicts)
Sketch sketch;
int dofs = sketch.setUpSketch(getCompleteGeometry(), Constraints.getValues(),
getExternalGeometryCount());
if (dofs < 0) // over-constrained sketch
return -2;
if (sketch.hasConflicts()) // conflicting constraints
return -1;
return 0;
}
int SketchObject::solve()
{
// set up a sketch (including dofs counting and diagnosing of conflicts)
Sketch sketch;
int dofs = sketch.setUpSketch(getCompleteGeometry(), Constraints.getValues(),
getExternalGeometryCount());
int err=0;
if (dofs < 0) // over-constrained sketch
err = -3;
else if (sketch.hasConflicts()) // conflicting constraints
err = -3;
else if (sketch.solve() != 0) // solving
err = -2;
if (err == 0) {
// set the newly solved geometry
std::vector<Part::Geometry *> geomlist = sketch.extractGeometry();
Geometry.setValues(geomlist);
for (std::vector<Part::Geometry *>::iterator it = geomlist.begin(); it != geomlist.end(); ++it)
if (*it) delete *it;
}
return err;
}
int SketchObject::setDatum(int ConstrId, double Datum)
{
// set the changed value for the constraint
const std::vector<Constraint *> &vals = this->Constraints.getValues();
if (ConstrId < 0 || ConstrId >= int(vals.size()))
return -1;
ConstraintType type = vals[ConstrId]->Type;
if (type != Distance &&
type != DistanceX &&
type != DistanceY &&
type != Radius &&
type != Angle &&
type != Tangent && //for tangent, value==0 is autodecide, value==Pi/2 is external and value==-Pi/2 is internal
type != Perpendicular &&
type != SnellsLaw)
return -1;
if ((type == Distance || type == Radius) && Datum <= 0)
return (Datum == 0) ? -5 : -4;
// copy the list
std::vector<Constraint *> newVals(vals);
// clone the changed Constraint
Constraint *constNew = vals[ConstrId]->clone();
constNew->Value = Datum;
newVals[ConstrId] = constNew;
this->Constraints.setValues(newVals);
delete constNew;
int err = solve();
if (err)
this->Constraints.setValues(vals);
return err;
}
int SketchObject::movePoint(int GeoId, PointPos PosId, const Base::Vector3d& toPoint, bool relative)
{
Sketch sketch;
int dofs = sketch.setUpSketch(getCompleteGeometry(), Constraints.getValues(),
getExternalGeometryCount());
if (dofs < 0) // over-constrained sketch
return -1;
if (sketch.hasConflicts()) // conflicting constraints
return -1;
// move the point and solve
int ret = sketch.movePoint(GeoId, PosId, toPoint, relative);
if (ret == 0) {
std::vector<Part::Geometry *> geomlist = sketch.extractGeometry();
Geometry.setValues(geomlist);
//Constraints.acceptGeometry(getCompleteGeometry());
for (std::vector<Part::Geometry *>::iterator it=geomlist.begin(); it != geomlist.end(); ++it) {
if (*it) delete *it;
}
}
return ret;
}
Base::Vector3d SketchObject::getPoint(int GeoId, PointPos PosId) const
{
assert(GeoId == H_Axis || GeoId == V_Axis ||
(GeoId <= getHighestCurveIndex() && GeoId >= -getExternalGeometryCount()) );
const Part::Geometry *geo = getGeometry(GeoId);
if (geo->getTypeId() == Part::GeomPoint::getClassTypeId()) {
const Part::GeomPoint *p = dynamic_cast<const Part::GeomPoint*>(geo);
if (PosId == start || PosId == mid || PosId == end)
return p->getPoint();
} else if (geo->getTypeId() == Part::GeomLineSegment::getClassTypeId()) {
const Part::GeomLineSegment *lineSeg = dynamic_cast<const Part::GeomLineSegment*>(geo);
if (PosId == start)
return lineSeg->getStartPoint();
else if (PosId == end)
return lineSeg->getEndPoint();
} else if (geo->getTypeId() == Part::GeomCircle::getClassTypeId()) {
const Part::GeomCircle *circle = dynamic_cast<const Part::GeomCircle*>(geo);
if (PosId == mid)
return circle->getCenter();
} else if (geo->getTypeId() == Part::GeomEllipse::getClassTypeId()) {
const Part::GeomEllipse *ellipse = dynamic_cast<const Part::GeomEllipse*>(geo);
if (PosId == mid)
return ellipse->getCenter();
} else if (geo->getTypeId() == Part::GeomArcOfCircle::getClassTypeId()) {
const Part::GeomArcOfCircle *aoc = dynamic_cast<const Part::GeomArcOfCircle*>(geo);
if (PosId == start)
return aoc->getStartPoint(/*emulateCCW=*/true);
else if (PosId == end)
return aoc->getEndPoint(/*emulateCCW=*/true);
else if (PosId == mid)
return aoc->getCenter();
} else if (geo->getTypeId() == Part::GeomArcOfEllipse::getClassTypeId()) {
const Part::GeomArcOfEllipse *aoc = dynamic_cast<const Part::GeomArcOfEllipse*>(geo);
if (PosId == start)
return aoc->getStartPoint(/*emulateCCW=*/true);
else if (PosId == end)
return aoc->getEndPoint(/*emulateCCW=*/true);
else if (PosId == mid)
return aoc->getCenter();
}
return Base::Vector3d();
}
int SketchObject::getAxisCount(void) const
{
const std::vector< Part::Geometry * > &vals = getInternalGeometry();
int count=0;
for (std::vector<Part::Geometry *>::const_iterator geo=vals.begin();
geo != vals.end(); geo++)
if ((*geo) && (*geo)->Construction &&
(*geo)->getTypeId() == Part::GeomLineSegment::getClassTypeId())
count++;
return count;
}
Base::Axis SketchObject::getAxis(int axId) const
{
if (axId == H_Axis || axId == V_Axis || axId == N_Axis)
return Part::Part2DObject::getAxis(axId);
const std::vector< Part::Geometry * > &vals = getInternalGeometry();
int count=0;
for (std::vector<Part::Geometry *>::const_iterator geo=vals.begin();
geo != vals.end(); geo++)
if ((*geo) && (*geo)->Construction &&
(*geo)->getTypeId() == Part::GeomLineSegment::getClassTypeId()) {
if (count == axId) {
Part::GeomLineSegment *lineSeg = dynamic_cast<Part::GeomLineSegment*>(*geo);
Base::Vector3d start = lineSeg->getStartPoint();
Base::Vector3d end = lineSeg->getEndPoint();
return Base::Axis(start, end-start);
}
count++;
}
return Base::Axis();
}
void SketchObject::acceptGeometry()
{
Constraints.acceptGeometry(getCompleteGeometry());
rebuildVertexIndex();
}
int SketchObject::addGeometry(const std::vector<Part::Geometry *> &geoList)
{
const std::vector< Part::Geometry * > &vals = getInternalGeometry();
std::vector< Part::Geometry * > newVals(vals);
for (std::vector<Part::Geometry *>::const_iterator it = geoList.begin(); it != geoList.end(); ++it) {
newVals.push_back(*it);
}
Geometry.setValues(newVals);
Constraints.acceptGeometry(getCompleteGeometry());
rebuildVertexIndex();
return Geometry.getSize()-1;
}
int SketchObject::addGeometry(const Part::Geometry *geo)
{
const std::vector< Part::Geometry * > &vals = getInternalGeometry();
std::vector< Part::Geometry * > newVals(vals);
Part::Geometry *geoNew = geo->clone();
newVals.push_back(geoNew);
Geometry.setValues(newVals);
Constraints.acceptGeometry(getCompleteGeometry());
delete geoNew;
rebuildVertexIndex();
return Geometry.getSize()-1;
}
int SketchObject::delGeometry(int GeoId)
{
const std::vector< Part::Geometry * > &vals = getInternalGeometry();
if (GeoId < 0 || GeoId >= int(vals.size()))
return -1;
this->DeleteUnusedInternalGeometry(GeoId);
std::vector< Part::Geometry * > newVals(vals);
newVals.erase(newVals.begin()+GeoId);
// Find coincident points to replace the points of the deleted geometry
std::vector<int> GeoIdList;
std::vector<PointPos> PosIdList;
for (PointPos PosId = start; PosId != mid; ) {
getCoincidentPoints(GeoId, PosId, GeoIdList, PosIdList);
if (GeoIdList.size() > 1) {
delConstraintOnPoint(GeoId, PosId, true /* only coincidence */);
transferConstraints(GeoIdList[0], PosIdList[0], GeoIdList[1], PosIdList[1]);
}
PosId = (PosId == start) ? end : mid; // loop through [start, end, mid]
}
const std::vector< Constraint * > &constraints = this->Constraints.getValues();
std::vector< Constraint * > newConstraints(0);
for (std::vector<Constraint *>::const_iterator it = constraints.begin();
it != constraints.end(); ++it) {
if ((*it)->First != GeoId && (*it)->Second != GeoId && (*it)->Third != GeoId) {
Constraint *copiedConstr = (*it)->clone();
if (copiedConstr->First > GeoId)
copiedConstr->First -= 1;
if (copiedConstr->Second > GeoId)
copiedConstr->Second -= 1;
if (copiedConstr->Third > GeoId)
copiedConstr->Third -= 1;
newConstraints.push_back(copiedConstr);
}
}
this->Geometry.setValues(newVals);
this->Constraints.setValues(newConstraints);
this->Constraints.acceptGeometry(getCompleteGeometry());
rebuildVertexIndex();
return 0;
}
int SketchObject::toggleConstruction(int GeoId)
{
const std::vector< Part::Geometry * > &vals = getInternalGeometry();
if (GeoId < 0 || GeoId >= int(vals.size()))
return -1;
std::vector< Part::Geometry * > newVals(vals);
Part::Geometry *geoNew = newVals[GeoId]->clone();
geoNew->Construction = !geoNew->Construction;
newVals[GeoId]=geoNew;
this->Geometry.setValues(newVals);
this->Constraints.acceptGeometry(getCompleteGeometry());
return 0;
}
int SketchObject::setConstruction(int GeoId, bool on)
{
const std::vector< Part::Geometry * > &vals = getInternalGeometry();
if (GeoId < 0 || GeoId >= int(vals.size()))
return -1;
std::vector< Part::Geometry * > newVals(vals);
Part::Geometry *geoNew = newVals[GeoId]->clone();
geoNew->Construction = on;
newVals[GeoId]=geoNew;
this->Geometry.setValues(newVals);
this->Constraints.acceptGeometry(getCompleteGeometry());
return 0;
}
//ConstraintList is used only to make copies.
int SketchObject::addConstraints(const std::vector<Constraint *> &ConstraintList)
{
const std::vector< Constraint * > &vals = this->Constraints.getValues();
std::vector< Constraint * > newVals(vals);
newVals.insert(newVals.end(), ConstraintList.begin(), ConstraintList.end());
//test if tangent constraints have been added; AutoLockTangency.
std::vector< Constraint * > tbd;//list of temporary copies that need to be deleted
for(int i = newVals.size()-ConstraintList.size(); i<newVals.size(); i++){
if( newVals[i]->Type == Tangent || newVals[i]->Type == Perpendicular ){
Constraint *constNew = newVals[i]->clone();
AutoLockTangencyAndPerpty(constNew);
tbd.push_back(constNew);
newVals[i] = constNew;
}
}
this->Constraints.setValues(newVals);
//clean up - delete temporary copies of constraints that were made to affect the constraints
for(int i=0; i<tbd.size(); i++){
delete (tbd[i]);
}
return this->Constraints.getSize()-1;
}
int SketchObject::addConstraint(const Constraint *constraint)
{
const std::vector< Constraint * > &vals = this->Constraints.getValues();
std::vector< Constraint * > newVals(vals);
Constraint *constNew = constraint->clone();
if (constNew->Type == Tangent || constNew->Type == Perpendicular)
AutoLockTangencyAndPerpty(constNew);
newVals.push_back(constNew);
this->Constraints.setValues(newVals);
delete constNew;
return this->Constraints.getSize()-1;
}
int SketchObject::delConstraint(int ConstrId)
{
const std::vector< Constraint * > &vals = this->Constraints.getValues();
if (ConstrId < 0 || ConstrId >= int(vals.size()))
return -1;
std::vector< Constraint * > newVals(vals);
newVals.erase(newVals.begin()+ConstrId);
this->Constraints.setValues(newVals);
return 0;
}
int SketchObject::delConstraintOnPoint(int VertexId, bool onlyCoincident)
{
int GeoId;
PointPos PosId;
if (VertexId == -1) { // RootPoint
GeoId = -1;
PosId = start;
} else
getGeoVertexIndex(VertexId, GeoId, PosId);
return delConstraintOnPoint(GeoId, PosId, onlyCoincident);
}
int SketchObject::delConstraintOnPoint(int GeoId, PointPos PosId, bool onlyCoincident)
{
const std::vector<Constraint *> &vals = this->Constraints.getValues();
// check if constraints can be redirected to some other point
int replaceGeoId=Constraint::GeoUndef;
PointPos replacePosId=Sketcher::none;
if (!onlyCoincident) {
for (std::vector<Constraint *>::const_iterator it = vals.begin(); it != vals.end(); ++it) {
if ((*it)->Type == Sketcher::Coincident) {
if ((*it)->First == GeoId && (*it)->FirstPos == PosId) {
replaceGeoId = (*it)->Second;
replacePosId = (*it)->SecondPos;
break;
}
else if ((*it)->Second == GeoId && (*it)->SecondPos == PosId) {
replaceGeoId = (*it)->First;
replacePosId = (*it)->FirstPos;
break;
}
}
}
}
// remove or redirect any constraints associated with the given point
std::vector<Constraint *> newVals(0);
for (std::vector<Constraint *>::const_iterator it = vals.begin(); it != vals.end(); ++it) {
if ((*it)->Type == Sketcher::Coincident) {
if ((*it)->First == GeoId && (*it)->FirstPos == PosId) {
if (replaceGeoId != Constraint::GeoUndef &&
(replaceGeoId != (*it)->Second || replacePosId != (*it)->SecondPos)) { // redirect this constraint
(*it)->First = replaceGeoId;
(*it)->FirstPos = replacePosId;
}
else
continue; // skip this constraint
}
else if ((*it)->Second == GeoId && (*it)->SecondPos == PosId) {
if (replaceGeoId != Constraint::GeoUndef &&
(replaceGeoId != (*it)->First || replacePosId != (*it)->FirstPos)) { // redirect this constraint
(*it)->Second = replaceGeoId;
(*it)->SecondPos = replacePosId;
}
else
continue; // skip this constraint
}
}
else if (!onlyCoincident) {
if ((*it)->Type == Sketcher::Distance ||
(*it)->Type == Sketcher::DistanceX || (*it)->Type == Sketcher::DistanceY) {
if ((*it)->First == GeoId && (*it)->FirstPos == none &&
(PosId == start || PosId == end)) {
// remove the constraint even if it is not directly associated
// with the given point
continue; // skip this constraint
}
else if ((*it)->First == GeoId && (*it)->FirstPos == PosId) {
if (replaceGeoId != Constraint::GeoUndef) { // redirect this constraint
(*it)->First = replaceGeoId;
(*it)->FirstPos = replacePosId;
}
else
continue; // skip this constraint
}
else if ((*it)->Second == GeoId && (*it)->SecondPos == PosId) {
if (replaceGeoId != Constraint::GeoUndef) { // redirect this constraint
(*it)->Second = replaceGeoId;
(*it)->SecondPos = replacePosId;
}
else
continue; // skip this constraint
}
}
else if ((*it)->Type == Sketcher::PointOnObject) {
if ((*it)->First == GeoId && (*it)->FirstPos == PosId) {
if (replaceGeoId != Constraint::GeoUndef) { // redirect this constraint
(*it)->First = replaceGeoId;
(*it)->FirstPos = replacePosId;
}
else
continue; // skip this constraint
}
}
else if ((*it)->Type == Sketcher::Tangent) {
if (((*it)->First == GeoId && (*it)->FirstPos == PosId) ||
((*it)->Second == GeoId && (*it)->SecondPos == PosId)) {
// we could keep the tangency constraint by converting it
// to a simple one but it is not really worth
continue; // skip this constraint
}
}
else if ((*it)->Type == Sketcher::Symmetric) {
if (((*it)->First == GeoId && (*it)->FirstPos == PosId) ||
((*it)->Second == GeoId && (*it)->SecondPos == PosId)) {
continue; // skip this constraint
}
}
}
newVals.push_back(*it);
}
if (newVals.size() < vals.size()) {
this->Constraints.setValues(newVals);
return 0;
}
return -1; // no such constraint
}
int SketchObject::transferConstraints(int fromGeoId, PointPos fromPosId, int toGeoId, PointPos toPosId)
{
const std::vector<Constraint *> &vals = this->Constraints.getValues();
std::vector<Constraint *> newVals(vals);
for (int i=0; i < int(newVals.size()); i++) {
if (vals[i]->First == fromGeoId && vals[i]->FirstPos == fromPosId &&
!(vals[i]->Second == toGeoId && vals[i]->SecondPos == toPosId)) {
Constraint *constNew = newVals[i]->clone();
constNew->First = toGeoId;
constNew->FirstPos = toPosId;
newVals[i] = constNew;
} else if (vals[i]->Second == fromGeoId && vals[i]->SecondPos == fromPosId &&
!(vals[i]->First == toGeoId && vals[i]->FirstPos == toPosId)) {
Constraint *constNew = newVals[i]->clone();
constNew->Second = toGeoId;
constNew->SecondPos = toPosId;
newVals[i] = constNew;
}
}
this->Constraints.setValues(newVals);
return 0;
}
int SketchObject::fillet(int GeoId, PointPos PosId, double radius, bool trim)
{
if (GeoId < 0 || GeoId > getHighestCurveIndex())
return -1;
// Find the other geometry Id associated with the coincident point
std::vector<int> GeoIdList;
std::vector<PointPos> PosIdList;
getCoincidentPoints(GeoId, PosId, GeoIdList, PosIdList);
// only coincident points between two (non-external) edges can be filleted
if (GeoIdList.size() == 2 && GeoIdList[0] >= 0 && GeoIdList[1] >= 0) {
const Part::Geometry *geo1 = getGeometry(GeoIdList[0]);
const Part::Geometry *geo2 = getGeometry(GeoIdList[1]);
if (geo1->getTypeId() == Part::GeomLineSegment::getClassTypeId() &&
geo2->getTypeId() == Part::GeomLineSegment::getClassTypeId() ) {
const Part::GeomLineSegment *lineSeg1 = dynamic_cast<const Part::GeomLineSegment*>(geo1);
const Part::GeomLineSegment *lineSeg2 = dynamic_cast<const Part::GeomLineSegment*>(geo2);
Base::Vector3d midPnt1 = (lineSeg1->getStartPoint() + lineSeg1->getEndPoint()) / 2 ;
Base::Vector3d midPnt2 = (lineSeg2->getStartPoint() + lineSeg2->getEndPoint()) / 2 ;
return fillet(GeoIdList[0], GeoIdList[1], midPnt1, midPnt2, radius, trim);
}
}
return -1;
}
int SketchObject::fillet(int GeoId1, int GeoId2,
const Base::Vector3d& refPnt1, const Base::Vector3d& refPnt2,
double radius, bool trim)
{
if (GeoId1 < 0 || GeoId1 > getHighestCurveIndex() ||
GeoId2 < 0 || GeoId2 > getHighestCurveIndex())
return -1;
const Part::Geometry *geo1 = getGeometry(GeoId1);
const Part::Geometry *geo2 = getGeometry(GeoId2);
if (geo1->getTypeId() == Part::GeomLineSegment::getClassTypeId() &&
geo2->getTypeId() == Part::GeomLineSegment::getClassTypeId() ) {
const Part::GeomLineSegment *lineSeg1 = dynamic_cast<const Part::GeomLineSegment*>(geo1);
const Part::GeomLineSegment *lineSeg2 = dynamic_cast<const Part::GeomLineSegment*>(geo2);
Base::Vector3d filletCenter;
if (!Part::findFilletCenter(lineSeg1, lineSeg2, radius, refPnt1, refPnt2, filletCenter))
return -1;
Base::Vector3d dir1 = lineSeg1->getEndPoint() - lineSeg1->getStartPoint();
Base::Vector3d dir2 = lineSeg2->getEndPoint() - lineSeg2->getStartPoint();
// the intersection point will and two distances will be necessary later for trimming the lines
Base::Vector3d intersection, dist1, dist2;
// create arc from known parameters and lines
int filletId;
Part::GeomArcOfCircle *arc = Part::createFilletGeometry(lineSeg1, lineSeg2, filletCenter, radius);
if (arc) {
// calculate intersection and distances before we invalidate lineSeg1 and lineSeg2
if (!find2DLinesIntersection(lineSeg1, lineSeg2, intersection)) {
delete arc;
return -1;
}
dist1.ProjToLine(arc->getStartPoint(/*emulateCCW=*/true)-intersection, dir1);
dist2.ProjToLine(arc->getStartPoint(/*emulateCCW=*/true)-intersection, dir2);
Part::Geometry *newgeo = dynamic_cast<Part::Geometry* >(arc);
filletId = addGeometry(newgeo);
if (filletId < 0) {
delete arc;
return -1;
}
}
else
return -1;
if (trim) {
PointPos PosId1 = (filletCenter-intersection)*dir1 > 0 ? start : end;
PointPos PosId2 = (filletCenter-intersection)*dir2 > 0 ? start : end;
delConstraintOnPoint(GeoId1, PosId1, false);
delConstraintOnPoint(GeoId2, PosId2, false);
Sketcher::Constraint *tangent1 = new Sketcher::Constraint();
Sketcher::Constraint *tangent2 = new Sketcher::Constraint();
tangent1->Type = Sketcher::Tangent;
tangent1->First = GeoId1;
tangent1->FirstPos = PosId1;
tangent1->Second = filletId;
tangent2->Type = Sketcher::Tangent;
tangent2->First = GeoId2;
tangent2->FirstPos = PosId2;
tangent2->Second = filletId;
if (dist1.Length() < dist2.Length()) {
tangent1->SecondPos = start;
tangent2->SecondPos = end;
movePoint(GeoId1, PosId1, arc->getStartPoint(/*emulateCCW=*/true));
movePoint(GeoId2, PosId2, arc->getEndPoint(/*emulateCCW=*/true));
}
else {
tangent1->SecondPos = end;
tangent2->SecondPos = start;
movePoint(GeoId1, PosId1, arc->getEndPoint(/*emulateCCW=*/true));
movePoint(GeoId2, PosId2, arc->getStartPoint(/*emulateCCW=*/true));
}
addConstraint(tangent1);
addConstraint(tangent2);
delete tangent1;
delete tangent2;
}
delete arc;
return 0;
}
return -1;
}
int SketchObject::trim(int GeoId, const Base::Vector3d& point)
{
if (GeoId < 0 || GeoId > getHighestCurveIndex())
return -1;
const std::vector<Part::Geometry *> &geomlist = getInternalGeometry();
const std::vector<Constraint *> &constraints = this->Constraints.getValues();
int GeoId1=Constraint::GeoUndef, GeoId2=Constraint::GeoUndef;
Base::Vector3d point1, point2;
Part2DObject::seekTrimPoints(geomlist, GeoId, point, GeoId1, point1, GeoId2, point2);
if (GeoId1 < 0 && GeoId2 >= 0) {
std::swap(GeoId1,GeoId2);
std::swap(point1,point2);
}
Part::Geometry *geo = geomlist[GeoId];
if (geo->getTypeId() == Part::GeomLineSegment::getClassTypeId()) {
const Part::GeomLineSegment *lineSeg = dynamic_cast<const Part::GeomLineSegment*>(geo);
Base::Vector3d startPnt = lineSeg->getStartPoint();
Base::Vector3d endPnt = lineSeg->getEndPoint();
Base::Vector3d dir = (endPnt - startPnt).Normalize();
double length = (endPnt - startPnt)*dir;
double x0 = (point - startPnt)*dir;
if (GeoId1 >= 0 && GeoId2 >= 0) {
double x1 = (point1 - startPnt)*dir;
double x2 = (point2 - startPnt)*dir;
if (x1 > x2) {
std::swap(GeoId1,GeoId2);
std::swap(point1,point2);
std::swap(x1,x2);
}
if (x1 >= 0.001*length && x2 <= 0.999*length) {
if (x1 < x0 && x2 > x0) {
int newGeoId = addGeometry(geo);
// go through all constraints and replace the point (GeoId,end) with (newGeoId,end)
transferConstraints(GeoId, end, newGeoId, end);
movePoint(GeoId, end, point1);
movePoint(newGeoId, start, point2);
PointPos secondPos1 = Sketcher::none, secondPos2 = Sketcher::none;
ConstraintType constrType1 = Sketcher::PointOnObject, constrType2 = Sketcher::PointOnObject;
for (std::vector<Constraint *>::const_iterator it=constraints.begin();
it != constraints.end(); ++it) {
Constraint *constr = *(it);
if (secondPos1 == Sketcher::none && (constr->First == GeoId1 && constr->Second == GeoId)) {
constrType1= Sketcher::Coincident;
secondPos1 = constr->FirstPos;
} else if (secondPos2 == Sketcher::none && (constr->First == GeoId2 && constr->Second == GeoId)) {
constrType2 = Sketcher::Coincident;
secondPos2 = constr->FirstPos;
}
}
// constrain the trimming points on the corresponding geometries
Sketcher::Constraint *newConstr = new Sketcher::Constraint();
newConstr->Type = constrType1;
newConstr->First = GeoId;
newConstr->FirstPos = end;
newConstr->Second = GeoId1;
if (constrType1 == Sketcher::Coincident) {
newConstr->SecondPos = secondPos1;
delConstraintOnPoint(GeoId1, secondPos1, false);
}
addConstraint(newConstr);
// Reset the second pos
newConstr->SecondPos = Sketcher::none;
newConstr->Type = constrType2;
newConstr->First = newGeoId;
newConstr->FirstPos = start;
newConstr->Second = GeoId2;
if (constrType2 == Sketcher::Coincident) {
newConstr->SecondPos = secondPos2;
delConstraintOnPoint(GeoId2, secondPos2, false);
}
addConstraint(newConstr);
// Reset the second pos
newConstr->SecondPos = Sketcher::none;
// new line segments colinear
newConstr->Type = Sketcher::Tangent;
newConstr->First = GeoId;
newConstr->FirstPos = none;
newConstr->Second = newGeoId;
addConstraint(newConstr);
delete newConstr;
return 0;
}
} else if (x1 < 0.001*length) { // drop the first intersection point
std::swap(GeoId1,GeoId2);
std::swap(point1,point2);
} else if (x2 > 0.999*length) { // drop the second intersection point
}
else
return -1;
}
if (GeoId1 >= 0) {
double x1 = (point1 - startPnt)*dir;
if (x1 >= 0.001*length && x1 <= 0.999*length) {
ConstraintType constrType = Sketcher::PointOnObject;
PointPos secondPos = Sketcher::none;
for (std::vector<Constraint *>::const_iterator it=constraints.begin();
it != constraints.end(); ++it) {
Constraint *constr = *(it);
if ((constr->First == GeoId1 && constr->Second == GeoId)) {
constrType = Sketcher::Coincident;
secondPos = constr->FirstPos;
delConstraintOnPoint(GeoId1, constr->FirstPos, false);
break;
}
}
if (x1 > x0) { // trim line start
delConstraintOnPoint(GeoId, start, false);
movePoint(GeoId, start, point1);
// constrain the trimming point on the corresponding geometry
Sketcher::Constraint *newConstr = new Sketcher::Constraint();
newConstr->Type = constrType;
newConstr->First = GeoId;
newConstr->FirstPos = start;
newConstr->Second = GeoId1;
if (constrType == Sketcher::Coincident)
newConstr->SecondPos = secondPos;
addConstraint(newConstr);
delete newConstr;
return 0;
}
else if (x1 < x0) { // trim line end
delConstraintOnPoint(GeoId, end, false);
movePoint(GeoId, end, point1);
Sketcher::Constraint *newConstr = new Sketcher::Constraint();
newConstr->Type = constrType;
newConstr->First = GeoId;
newConstr->FirstPos = end;
newConstr->Second = GeoId1;
if (constrType == Sketcher::Coincident)
newConstr->SecondPos = secondPos;
addConstraint(newConstr);
delete newConstr;
return 0;
}
}
}
} else if (geo->getTypeId() == Part::GeomCircle::getClassTypeId()) {
const Part::GeomCircle *circle = dynamic_cast<const Part::GeomCircle*>(geo);
Base::Vector3d center = circle->getCenter();
double theta0 = Base::fmod(atan2(point.y - center.y,point.x - center.x), 2.f*M_PI);
if (GeoId1 >= 0 && GeoId2 >= 0) {
double theta1 = Base::fmod(atan2(point1.y - center.y, point1.x - center.x), 2.f*M_PI);
double theta2 = Base::fmod(atan2(point2.y - center.y, point2.x - center.x), 2.f*M_PI);
if (Base::fmod(theta1 - theta0, 2.f*M_PI) > Base::fmod(theta2 - theta0, 2.f*M_PI)) {
std::swap(GeoId1,GeoId2);
std::swap(point1,point2);
std::swap(theta1,theta2);
}
if (theta1 == theta0 || theta1 == theta2)
return -1;
else if (theta1 > theta2)
theta2 += 2.f*M_PI;
// Trim Point between intersection points
// Create a new arc to substitute Circle in geometry list and set parameters
Part::GeomArcOfCircle *geoNew = new Part::GeomArcOfCircle();
geoNew->setCenter(center);
geoNew->setRadius(circle->getRadius());
geoNew->setRange(theta1, theta2,/*emulateCCW=*/true);
std::vector< Part::Geometry * > newVals(geomlist);
newVals[GeoId] = geoNew;
Geometry.setValues(newVals);
Constraints.acceptGeometry(getCompleteGeometry());
delete geoNew;
rebuildVertexIndex();
PointPos secondPos1 = Sketcher::none, secondPos2 = Sketcher::none;
ConstraintType constrType1 = Sketcher::PointOnObject, constrType2 = Sketcher::PointOnObject;
for (std::vector<Constraint *>::const_iterator it=constraints.begin();
it != constraints.end(); ++it) {
Constraint *constr = *(it);
if (secondPos1 == Sketcher::none && (constr->First == GeoId1 && constr->Second == GeoId)) {
constrType1= Sketcher::Coincident;
secondPos1 = constr->FirstPos;
} else if(secondPos2 == Sketcher::none && (constr->First == GeoId2 && constr->Second == GeoId)) {
constrType2 = Sketcher::Coincident;
secondPos2 = constr->FirstPos;
}
}
// constrain the trimming points on the corresponding geometries
Sketcher::Constraint *newConstr = new Sketcher::Constraint();
newConstr->Type = constrType1;
newConstr->First = GeoId;
newConstr->FirstPos = start;
newConstr->Second = GeoId1;
if (constrType1 == Sketcher::Coincident) {
newConstr->SecondPos = secondPos1;
delConstraintOnPoint(GeoId1, secondPos1, false);
}
addConstraint(newConstr);
// Reset secondpos in case it was set previously
newConstr->SecondPos = Sketcher::none;
// Add Second Constraint
newConstr->First = GeoId;
newConstr->FirstPos = end;
newConstr->Second = GeoId2;
if (constrType2 == Sketcher::Coincident) {
newConstr->SecondPos = secondPos2;
delConstraintOnPoint(GeoId2, secondPos2, false);
}
addConstraint(newConstr);
delete newConstr;
return 0;
}
} else if (geo->getTypeId() == Part::GeomEllipse::getClassTypeId()) {
const Part::GeomEllipse *ellipse = dynamic_cast<const Part::GeomEllipse*>(geo);
Base::Vector3d center = ellipse->getCenter();
double theta0;
ellipse->closestParameter(point,theta0);
theta0 = Base::fmod(theta0, 2.f*M_PI);