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DimensionReferences.cpp
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DimensionReferences.cpp
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/***************************************************************************
* Copyright (c) 2022 WandererFan <wandererfan@gmail.com> *
* *
* 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>
#endif
#include <BRep_Tool.hxx>
#include <BRepAdaptor_Curve.hxx>
#include <BRepBuilderAPI_MakeVertex.hxx>
#include <TopExp.hxx>
#include <App/GeoFeature.h>
#include <App/DocumentObject.h>
#include <App/Document.h>
#include <Base/Console.h>
#include <Mod/Part/App/TopoShape.h>
#include <Mod/PartDesign/App/Body.h>
#include <Mod/PartDesign/App/Feature.h>
#include "DimensionReferences.h"
#include "DrawUtil.h"
#include "DrawViewPart.h"
#include "ShapeUtils.h"
using namespace TechDraw;
using DU = DrawUtil;
ReferenceEntry::ReferenceEntry( App::DocumentObject* docObject, std::string subName, App::Document* document)
{
setObject(docObject);
setSubName(subName);
setDocument(document);
if (docObject) {
setObjectName(docObject->getNameInDocument());
if (document == nullptr) {
setDocument(docObject->getDocument());
}
}
}
ReferenceEntry::ReferenceEntry(const ReferenceEntry& other)
{
setObject(other.getObject());
setSubName(other.getSubName());
setObjectName(other.getObjectName());
setDocument(other.getDocument());
}
ReferenceEntry& ReferenceEntry::operator=(const ReferenceEntry& otherRef)
{
setObject(otherRef.getObject());
setSubName(otherRef.getSubName());
setObjectName(otherRef.getObjectName());
setDocument(otherRef.getDocument());
return *this;
}
TopoDS_Shape ReferenceEntry::getGeometry() const
{
// Base::Console().Message("RE::getGeometry() - objectName: %s sub: **%s**\n",
// getObjectName(), getSubName());
// first, make sure the object has not been deleted!
App::DocumentObject* obj = getDocument()->getObject(getObjectName().c_str());
if (!obj) {
Base::Console().Message("RE::getGeometry - %s no longer exists!\n", getObjectName().c_str());
return {};
}
if (getSubName().empty()) {
Base::Console().Message("RE::getGeometry - Reference has no subelement!\n");
return {};
}
if ( getObject()->isDerivedFrom(TechDraw::DrawViewPart::getClassTypeId()) ) {
// Base::Console().Message("RE::getGeometry - getting 2d geometry\n");
std::string gType;
try {
auto dvp = static_cast<TechDraw::DrawViewPart*>(getObject());
gType = geomType();
if (gType == "Vertex") {
// getVertex throws on not found, but we want to return null
// shape
auto vgeom = dvp->getVertex(getSubName());
if (!vgeom) {
return {};
}
return vgeom->getOCCVertex();
}
if (gType == "Edge") {
auto egeom = dvp->getEdge(getSubName());
if (!egeom) {
return {};
}
return egeom->getOCCEdge();
}
if (gType == "Face") {
auto fgeom = dvp->getFace(getSubName());
if (!fgeom) {
return {};
}
return fgeom->toOccFace();
}
}
catch (...) {
Base::Console().Message("RE::getGeometry - no shape for dimension 2d reference - gType: **%s**\n", gType.c_str());
return {};
}
}
Part::TopoShape shape = Part::Feature::getTopoShape(getObject());
auto geoFeat = dynamic_cast<App::GeoFeature*>(getObject());
if (geoFeat) {
shape.setPlacement(geoFeat->globalPlacement());
}
if (getSubName().empty()) {
return shape.getShape();
}
// TODO: what happens if the subelement is no longer present?
return shape.getSubShape(getSubName().c_str());
}
std::string ReferenceEntry::getSubName(bool longForm) const
{
if (longForm) {
return m_subName;
}
std::string workingSubName(m_subName);
size_t lastDot = workingSubName.rfind('.');
if (lastDot != std::string::npos) {
workingSubName = workingSubName.substr(lastDot + 1);
}
return workingSubName;
}
App::DocumentObject* ReferenceEntry::getObject() const
{
if (!getDocument()) {
return nullptr;
}
App::DocumentObject* obj = getDocument()->getObject(getObjectName().c_str());
if (!obj) {
return nullptr;
}
return obj;
}
Part::TopoShape ReferenceEntry::asTopoShape() const
{
// Base::Console().Message("RE::asTopoShape()\n");
TopoDS_Shape geom = getGeometry();
if (geom.IsNull()) {
// throw Base::RuntimeError("Dimension Reference has null geometry");
Base::Console().Message("RE::asTopoShape - reference geometry is null\n");
return {};
}
if (geom.ShapeType() == TopAbs_VERTEX) {
TopoDS_Vertex vert = TopoDS::Vertex(geom);
return asTopoShapeVertex(vert);
}
if (geom.ShapeType() == TopAbs_EDGE) {
TopoDS_Edge edge = TopoDS::Edge(geom);
return asTopoShapeEdge(edge);
}
throw Base::RuntimeError("Dimension Reference has unsupported geometry");
}
Part::TopoShape ReferenceEntry::asTopoShapeVertex(TopoDS_Vertex& vert) const
{
Base::Vector3d point = DU::toVector3d(BRep_Tool::Pnt(vert));
if (!is3d()) {
auto dvp = static_cast<TechDraw::DrawViewPart*>(getObject());
point = point / dvp->getScale();
}
BRepBuilderAPI_MakeVertex mkVert(DU::togp_Pnt(point));
return { mkVert.Vertex() };
}
Part::TopoShape ReferenceEntry::asTopoShapeEdge(TopoDS_Edge &edge) const
{
// Base::Console().Message("RE::asTopoShapeEdge()\n");
TopoDS_Edge unscaledEdge = edge;
if (!is3d()) {
// 2d reference - projected and scaled. scale might have changed, so we need to unscale
auto dvp = static_cast<TechDraw::DrawViewPart*>(getObject());
TopoDS_Shape unscaledShape = ShapeUtils::scaleShape(edge, 1.0 / dvp->getScale());
unscaledEdge = TopoDS::Edge(unscaledShape);
}
return { unscaledEdge };
}
std::string ReferenceEntry::geomType() const
{
// Base::Console().Message("RE::geomType() - subName: **%s**\n", getSubName().c_str());
return DrawUtil::getGeomTypeFromName(getSubName());
}
bool ReferenceEntry::isWholeObject() const
{
return getSubName().empty();
}
bool ReferenceEntry::is3d() const
{
if (getObject() &&
getObject()->isDerivedFrom(TechDraw::DrawViewPart::getClassTypeId()) &&
!getSubName().empty()) {
// this is a well formed 2d reference
return false;
}
if (getObject() &&
getObject()->isDerivedFrom(TechDraw::DrawViewPart::getClassTypeId()) &&
getSubName().empty()) {
// this is a broken 3d reference, so it should be treated as 3d
return true;
}
// either we have no object or we have an object and it is a 3d object
return true;
}
//! check if this reference has valid geometry in the model
bool ReferenceEntry::hasGeometry() const
{
// Base::Console().Message("RE::hasGeometry()\n");
if (!getObject()) {
return false;
}
if ( getObject()->isDerivedFrom(TechDraw::DrawViewPart::getClassTypeId()) ) {
// 2d reference
auto dvp = static_cast<TechDraw::DrawViewPart*>(getObject());
if (getSubName().empty()) {
return false;
}
int geomNumber = DU::getIndexFromName(getSubName());
std::string gType = geomType();
if (gType == "Vertex") {
auto vert = dvp->getProjVertexByIndex(geomNumber);
if (vert) {
return true;
}
} else if (gType == "Edge") {
auto edge = dvp->getGeomByIndex(geomNumber);
if (edge) {
return true;
}
}
// if we ever have dimensions for faces, add something here.
return false;
}
// 3d reference
auto shape = Part::Feature::getTopoShape(getObject());
auto subShape = shape.getSubShape(getSubName().c_str());
if (!subShape.IsNull()) {
return true;
}
return false;
}