Files
create/src/Mod/TechDraw/App/DrawViewDimension.cpp
2023-09-28 09:01:39 -04:00

1894 lines
76 KiB
C++

/***************************************************************************
* Copyright (c) 2013 Luke Parry <l.parry@warwick.ac.uk> *
* 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 <cstdlib>
# include <sstream>
# include <QLocale>
# include <QRegularExpression>
# include <QRegularExpressionMatch>
# include <QString>
# include <QStringList>
# include <BRep_Tool.hxx>
# include <BRepAdaptor_Curve.hxx>
# include <BRepBuilderAPI_MakeEdge.hxx>
# include <BRepBuilderAPI_MakeVertex.hxx>
# include <BRepExtrema_DistShapeShape.hxx>
# include <BRepLProp_CLProps.hxx>
# include <GeomAPI_ExtremaCurveCurve.hxx>
# include <gp_Circ.hxx>
# include <gp_Elips.hxx>
# include <gp_Pnt.hxx>
# include <TopExp.hxx>
# include <TopExp_Explorer.hxx>
# include <TopoDS_Edge.hxx>
# include <TopoDS_Shape.hxx>
#endif
#include <App/Application.h>
#include <App/Document.h>
#include <Base/Console.h>
#include <Base/Parameter.h>
#include <Base/Quantity.h>
#include <Base/Tools.h>
#include <Base/UnitsApi.h>
#include <Mod/Measure/App/Measurement.h>
#include <Mod/Part/App/Geometry.h>
#include <Mod/Part/App/TopoShape.h>
#include <Mod/TechDraw/App/DrawViewDimensionPy.h> // generated from DrawViewDimensionPy.xml
#include "DrawViewDimension.h"
#include "DimensionFormatter.h"
#include "DrawUtil.h"
#include "DrawViewPart.h"
#include "Geometry.h"
#include "GeometryMatcher.h"
#include "Preferences.h"
using namespace TechDraw;
using namespace Part;
using DU = DrawUtil;
//===========================================================================
// DrawViewDimension
//===========================================================================
PROPERTY_SOURCE(TechDraw::DrawViewDimension, TechDraw::DrawView)
const char* DrawViewDimension::TypeEnums[] = {"Distance", "DistanceX", "DistanceY",
"DistanceZ", "Radius", "Diameter",
"Angle", "Angle3Pt", nullptr};
const char* DrawViewDimension::MeasureTypeEnums[] = {"True", "Projected", nullptr};
// constraint to set the step size to 0.1
static const App::PropertyQuantityConstraint::Constraints ToleranceConstraint = {-DBL_MAX, DBL_MAX,
0.1};
// constraint to force positive values
static const App::PropertyQuantityConstraint::Constraints PositiveConstraint = {0.0, DBL_MAX, 0.1};
DrawViewDimension::DrawViewDimension()
{
//create the formatter since it will be needed to set default property values
m_formatter = new DimensionFormatter(this);
ADD_PROPERTY_TYPE(References2D, (nullptr, nullptr), "", (App::Prop_None),
"Projected Geometry References");
References2D.setScope(App::LinkScope::Global);
ADD_PROPERTY_TYPE(References3D, (nullptr, nullptr), "", (App::Prop_None),
"3D Geometry References");
References3D.setScope(App::LinkScope::Global);
ADD_PROPERTY_TYPE(FormatSpec, (getDefaultFormatSpec()), "Format", App::Prop_Output,
"Dimension format");
ADD_PROPERTY_TYPE(FormatSpecOverTolerance, (getDefaultFormatSpec(true)), "Format",
App::Prop_Output, "Dimension overtolerance format");
ADD_PROPERTY_TYPE(FormatSpecUnderTolerance, (getDefaultFormatSpec(true)), "Format",
App::Prop_Output, "Dimension undertolerance format");
ADD_PROPERTY_TYPE(Arbitrary, (false), "Format", App::Prop_Output, "Value overridden by user");
ADD_PROPERTY_TYPE(ArbitraryTolerances, (false), "Format", App::Prop_Output,
"Tolerance values overridden by user");
Type.setEnums(TypeEnums);//dimension type: length, radius etc
ADD_PROPERTY(Type, ((long)0));
MeasureType.setEnums(MeasureTypeEnums);
ADD_PROPERTY(MeasureType, ((long)1));//Projected (or True) measurement
ADD_PROPERTY_TYPE(TheoreticalExact, (false), "", App::Prop_Output,
"If theoretical exact (basic) dimension");
ADD_PROPERTY_TYPE(EqualTolerance, (true), "", App::Prop_Output,
"If over- and undertolerance are equal");
ADD_PROPERTY_TYPE(OverTolerance, (0.0), "", App::Prop_Output,
"Overtolerance value\nIf 'Equal Tolerance' is true this is also\nthe negated "
"value for 'Under Tolerance'");
OverTolerance.setUnit(Base::Unit::Length);
OverTolerance.setConstraints(&ToleranceConstraint);
ADD_PROPERTY_TYPE(UnderTolerance, (0.0), "", App::Prop_Output,
"Undertolerance value\nIf 'Equal Tolerance' is true it will be replaced\nby "
"negative value of 'Over Tolerance'");
UnderTolerance.setUnit(Base::Unit::Length);
UnderTolerance.setConstraints(&ToleranceConstraint);
ADD_PROPERTY_TYPE(Inverted, (false), "", App::Prop_Output,
"The dimensional value is displayed inverted");
ADD_PROPERTY_TYPE(AngleOverride, (false), "Override", App::Prop_Output,
"User specified angles");
ADD_PROPERTY_TYPE(LineAngle, (0.0), "Override", App::Prop_Output, "Dimension line angle");
ADD_PROPERTY_TYPE(ExtensionAngle, (0.0), "Override", App::Prop_Output, "Extension line angle");
ADD_PROPERTY_TYPE(SavedGeometry, () ,"References",(App::PropertyType)(App::Prop_None),"Reference Geometry");
SavedGeometry.setOrderRelevant(true);
// hide the DrawView properties that don't apply to Dimensions
ScaleType.setStatus(App::Property::ReadOnly, true);
ScaleType.setStatus(App::Property::Hidden, true);
Scale.setStatus(App::Property::ReadOnly, true);
Scale.setStatus(App::Property::Hidden, true);
Rotation.setStatus(App::Property::ReadOnly, true);
Rotation.setStatus(App::Property::Hidden, true);
Caption.setStatus(App::Property::Hidden, true);
LockPosition.setStatus(App::Property::Hidden, true);
// by default EqualTolerance is true, thus make UnderTolerance read-only
UnderTolerance.setStatus(App::Property::ReadOnly, true);
FormatSpecUnderTolerance.setStatus(App::Property::ReadOnly, true);
measurement = new Measure::Measurement();
//TODO: should have better initial datumLabel position than (0, 0) in the DVP?? something closer to the object being measured?
//initialize the descriptive geometry.
//TODO: should this be more like DVP with a "geometry object"?
resetLinear();
resetAngular();
resetArc();
m_hasGeometry = false;
m_matcher = new GeometryMatcher(this);
m_referencesCorrect = true;
}
DrawViewDimension::~DrawViewDimension()
{
delete measurement;
measurement = nullptr;
delete m_formatter;
delete m_matcher;
}
void DrawViewDimension::resetLinear()
{
m_linearPoints.first(Base::Vector3d(0, 0, 0));
m_linearPoints.second(Base::Vector3d(0, 0, 0));
}
void DrawViewDimension::resetAngular()
{
m_anglePoints.first(Base::Vector3d(0, 0, 0));
m_anglePoints.second(Base::Vector3d(0, 0, 0));
m_anglePoints.vertex(Base::Vector3d(0, 0, 0));
}
void DrawViewDimension::resetArc()
{
m_arcPoints.isArc = false;
m_arcPoints.center = Base::Vector3d(0, 0, 0);
m_arcPoints.onCurve.first(Base::Vector3d(0, 0, 0));
m_arcPoints.onCurve.second(Base::Vector3d(0, 0, 0));
m_arcPoints.arcEnds.first(Base::Vector3d(0, 0, 0));
m_arcPoints.arcEnds.second(Base::Vector3d(0, 0, 0));
m_arcPoints.midArc = Base::Vector3d(0, 0, 0);
m_arcPoints.arcCW = false;
}
void DrawViewDimension::onChanged(const App::Property* prop)
{
if (prop == &References3D) {
//have to rebuild the Measurement object
clear3DMeasurements();//Measurement object
if (!(References3D.getValues()).empty()) {
setAll3DMeasurement();
}
}
if (isRestoring()) {
DrawView::onChanged(prop);
return;
}
if (prop == &References2D) {
updateSavedGeometry();
} else if (prop == &References3D) {
// remove the old measurement object
clear3DMeasurements();
if (!(References3D.getValues()).empty()) {
// rebuild the Measurement object
setAll3DMeasurement();
}
else if (MeasureType.isValue("True")) {//empty 3dRefs, but True
MeasureType.touch(); //run MeasureType logic for this case
}
updateSavedGeometry();
return;
}
else if (prop == &Type) {//why??
FormatSpec.setValue(getDefaultFormatSpec().c_str());
DimensionType type = static_cast<DimensionType>(Type.getValue());
if (type == DimensionType::Angle || type == DimensionType::Angle3Pt) {
OverTolerance.setUnit(Base::Unit::Angle);
UnderTolerance.setUnit(Base::Unit::Angle);
}
else {
OverTolerance.setUnit(Base::Unit::Length);
UnderTolerance.setUnit(Base::Unit::Length);
}
return;
}
else if (prop == &TheoreticalExact) {
// if TheoreticalExact disable tolerances and set them to zero
if (TheoreticalExact.getValue()) {
OverTolerance.setValue(0.0);
UnderTolerance.setValue(0.0);
OverTolerance.setReadOnly(true);
UnderTolerance.setReadOnly(true);
FormatSpecOverTolerance.setReadOnly(true);
FormatSpecUnderTolerance.setReadOnly(true);
ArbitraryTolerances.setValue(false);
ArbitraryTolerances.setReadOnly(true);
}
else {
OverTolerance.setReadOnly(false);
FormatSpecOverTolerance.setReadOnly(false);
ArbitraryTolerances.setReadOnly(false);
if (!EqualTolerance.getValue()) {
UnderTolerance.setReadOnly(false);
FormatSpecUnderTolerance.setReadOnly(false);
}
}
return;
}
else if (prop == &EqualTolerance) {
// if EqualTolerance set negated overtolerance for untertolerance
// then also the OverTolerance must be positive
if (EqualTolerance.getValue()) {
// if OverTolerance is negative or zero, first set it to zero
if (OverTolerance.getValue() < 0) {
OverTolerance.setValue(0.0);
}
OverTolerance.setConstraints(&PositiveConstraint);
UnderTolerance.setValue(-1.0 * OverTolerance.getValue());
UnderTolerance.setUnit(OverTolerance.getUnit());
UnderTolerance.setReadOnly(true);
FormatSpecUnderTolerance.setValue(FormatSpecOverTolerance.getValue());
FormatSpecUnderTolerance.setReadOnly(true);
}
else {
OverTolerance.setConstraints(&ToleranceConstraint);
if (!TheoreticalExact.getValue()) {
UnderTolerance.setReadOnly(false);
FormatSpecUnderTolerance.setReadOnly(false);
}
}
return;
}
else if (prop == &OverTolerance) {
// if EqualTolerance set negated overtolerance for untertolerance
if (EqualTolerance.getValue()) {
UnderTolerance.setValue(-1.0 * OverTolerance.getValue());
UnderTolerance.setUnit(OverTolerance.getUnit());
}
return;
}
else if (prop == &FormatSpecOverTolerance) {
if (!ArbitraryTolerances.getValue()) {
FormatSpecUnderTolerance.setValue(FormatSpecOverTolerance.getValue());
}
return;
}
else if (prop == &FormatSpecUnderTolerance) {
if (!ArbitraryTolerances.getValue()) {
FormatSpecOverTolerance.setValue(FormatSpecUnderTolerance.getValue());
}
return;
}
DrawView::onChanged(prop);
}
void DrawViewDimension::Restore(Base::XMLReader& reader)
// Old drawings did not have the equal tolerance options.
// We cannot just introduce it as being set to true because that would e.g. destroy tolerances like +1-2
// Therefore set it to false for existing documents
{
EqualTolerance.setValue(false);
DrawView::Restore(reader);
}
void DrawViewDimension::onDocumentRestored()
{
if (has3DReferences()) {
setAll3DMeasurement();
}
DimensionType type = static_cast<DimensionType>(Type.getValue());
if (type == DimensionType::Angle || type == DimensionType::Angle3Pt) {
OverTolerance.setUnit(Base::Unit::Angle);
UnderTolerance.setUnit(Base::Unit::Angle);
}
}
void DrawViewDimension::handleChangedPropertyType(Base::XMLReader& reader, const char* TypeName,
App::Property* prop)
{
if (prop == &OverTolerance && strcmp(TypeName, "App::PropertyFloat") == 0) {
App::PropertyFloat v;
v.Restore(reader);
OverTolerance.setValue(v.getValue());
}
else if (prop == &UnderTolerance && strcmp(TypeName, "App::PropertyFloat") == 0) {
App::PropertyFloat v;
v.Restore(reader);
UnderTolerance.setValue(v.getValue());
}
else {
TechDraw::DrawView::handleChangedPropertyType(reader, TypeName, prop);
}
// Over/Undertolerance were further changed from App::PropertyQuantity to App::PropertyQuantityConstraint
if (prop == &OverTolerance && strcmp(TypeName, "App::PropertyQuantity") == 0) {
App::PropertyQuantity OverToleranceProperty;
// restore the PropertyQuantity to be able to set its value
OverToleranceProperty.Restore(reader);
OverTolerance.setValue(OverToleranceProperty.getValue());
}
else if (prop == &UnderTolerance && strcmp(TypeName, "App::PropertyQuantity") == 0) {
App::PropertyQuantity UnderToleranceProperty;
// restore the PropertyQuantity to be able to set its value
UnderToleranceProperty.Restore(reader);
UnderTolerance.setValue(UnderToleranceProperty.getValue());
}
}
short DrawViewDimension::mustExecute() const
{
if (!isRestoring()) {
if (References2D.isTouched() || References3D.isTouched() || Type.isTouched()) {
return true;
}
}
return DrawView::mustExecute();
}
App::DocumentObjectExecReturn* DrawViewDimension::execute()
{
// Base::Console().Message("DVD::execute() - %s\n", getNameInDocument());
if (!okToProceed()) {
return App::DocumentObject::StdReturn;
}
resetLinear();
resetAngular();
resetArc();
m_referencesCorrect = compareSavedGeometry();
if (!m_referencesCorrect) {
m_referencesCorrect = fixExactMatch();
if (!m_referencesCorrect) {
handleNoExactMatch();
}
}
if (References3D.getValues().empty() && !checkReferences2D()) {
Base::Console().Warning("%s has invalid 2D References\n",
getNameInDocument());
return new App::DocumentObjectExecReturn("Dimension object has invalid 2d references");
}
//we have either or both valid References3D and References2D
ReferenceVector references = getEffectiveReferences();
if (Type.isValue("Distance") || Type.isValue("DistanceX") || Type.isValue("DistanceY")) {
if (getRefType() == oneEdge) {
m_linearPoints = getPointsOneEdge(references);
}
else if (getRefType() == twoEdge) {
m_linearPoints = getPointsTwoEdges(references);
}
else if (getRefType() == twoVertex) {
m_linearPoints = getPointsTwoVerts(references);
}
else if (getRefType() == vertexEdge) {
m_linearPoints = getPointsEdgeVert(references);
}
m_hasGeometry = true;
}
else if (Type.isValue("Radius")) {
m_arcPoints = getArcParameters(references);
m_hasGeometry = true;
}
else if (Type.isValue("Diameter")) {
m_arcPoints = getArcParameters(references);
m_hasGeometry = true;
}
else if (Type.isValue("Angle")) {
if (getRefType() != twoEdge) {
throw Base::RuntimeError("Angle dimension has non-edge references");
}
m_anglePoints = getAnglePointsTwoEdges(references);
m_hasGeometry = true;
}
else if (Type.isValue("Angle3Pt")) {
if (getRefType() != threeVertex) {
throw Base::RuntimeError("3 point angle dimension has non-vertex references");
}
m_anglePoints = getAnglePointsThreeVerts(references);
m_hasGeometry = true;
}
overrideKeepUpdated(false);
return DrawView::execute();
}
// true if we have enough information to execute, false otherwise
bool DrawViewDimension::okToProceed()
{
if (!keepUpdated()) {
return false;
}
DrawViewPart* dvp = getViewPart();
if (!dvp)
return false;
if (!has2DReferences() && !has3DReferences()) {
//no references, can't do anything
return App::DocumentObject::StdReturn;
}
if (!getViewPart()->hasGeometry()) {
//can't do anything until Source has geometry
return false;
}
// if (References3D.getValues().empty() && !checkReferences2D()) {
// Base::Console().Warning("DVD::okToProceed - %s has invalid 2D References\n",
// getNameInDocument());
// return false;
// }
return true;
}
bool DrawViewDimension::isMultiValueSchema() const { return m_formatter->isMultiValueSchema(); }
std::string DrawViewDimension::formatValue(qreal value, QString qFormatSpec, int partial,
bool isDim)
{
return m_formatter->formatValue(value, qFormatSpec, partial, isDim);
}
bool DrawViewDimension::haveTolerance()
{
//if a numeric tolerance is specified AND
//tolerances are NOT arbitrary
if ((!DrawUtil::fpCompare(OverTolerance.getValue(), 0.0)
|| !DrawUtil::fpCompare(UnderTolerance.getValue(), 0.0))
&& !ArbitraryTolerances.getValue()) {
return true;
}
return false;
}
std::string DrawViewDimension::getFormattedToleranceValue(int partial)
{
return m_formatter->getFormattedToleranceValue(partial);
}
////get over and under tolerances
std::pair<std::string, std::string> DrawViewDimension::getFormattedToleranceValues(int partial)
{
return m_formatter->getFormattedToleranceValues(partial);
}
////partial = 2 unit only
std::string DrawViewDimension::getFormattedDimensionValue(int partial)
{
return m_formatter->getFormattedDimensionValue(partial);
}
QStringList DrawViewDimension::getPrefixSuffixSpec(QString fSpec)
{
return m_formatter->getPrefixSuffixSpec(fSpec);
}
//!NOTE: this returns the Dimension value in internal units (ie mm)!!!!
double DrawViewDimension::getDimValue()
{
// Base::Console().Message("DVD::getDimValue()\n");
double result = 0.0;
if (!has2DReferences() && !has3DReferences()) {
//nothing to measure
return result;
}
if (!getViewPart()) {
return result;
}
if (!getViewPart()->hasGeometry()) { //happens when loading saved document
return result;
}
if (MeasureType.isValue("True")) {
// True Values
if (!measurement->has3DReferences()) {
Base::Console().Warning("%s - True dimension has no 3D References\n",
getNameInDocument());
return result;
}
if (Type.isValue("Distance") || Type.isValue("DistanceX") || Type.isValue("DistanceY")) {
result = measurement->length();
}
else if (Type.isValue("Radius")) {
result = measurement->radius();
}
else if (Type.isValue("Diameter")) {
result = 2.0 * measurement->radius();
}
else if (Type.isValue("Angle") || Type.isValue("Angle3Pt")) {
result = measurement->angle();
}
else {//tarfu
throw Base::ValueError("getDimValue() - Unknown Dimension Type (3)");
}
}
else {
// Projected Values
if (!checkReferences2D()) {
Base::Console().Warning("DVD::getDimValue - %s - 2D references are corrupt (5)\n",
getNameInDocument());
return result;
}
if (Type.isValue("Distance") || Type.isValue("DistanceX") || Type.isValue("DistanceY")) {
pointPair pts = getLinearPoints();
Base::Vector3d dimVec = pts.first() - pts.second();
if (Type.isValue("Distance")) {
result = dimVec.Length() / getViewPart()->getScale();
}
else if (Type.isValue("DistanceX")) {
result = fabs(dimVec.x) / getViewPart()->getScale();
}
else {
result = fabs(dimVec.y) / getViewPart()->getScale();
}
}
else if (Type.isValue("Radius")) {
arcPoints pts = m_arcPoints;
result =
pts.radius / getViewPart()->getScale();//Projected BaseGeom is scaled for drawing
}
else if (Type.isValue("Diameter")) {
arcPoints pts = m_arcPoints;
result = (pts.radius * 2.0)
/ getViewPart()->getScale();//Projected BaseGeom is scaled for drawing
}
else if (Type.isValue("Angle") || Type.isValue("Angle3Pt")) {//same as case "Angle"?
anglePoints pts = m_anglePoints;
Base::Vector3d vertex = pts.vertex();
Base::Vector3d leg0 = pts.first() - vertex;
Base::Vector3d leg1 = pts.second() - vertex;
double legAngle = leg0.GetAngle(leg1) * 180.0 / M_PI;
result = legAngle;
}
}
result = fabs(result);
if (Inverted.getValue()) {
if (Type.isValue("Angle") || Type.isValue("Angle3Pt")) {
result = 360 - result;
}
else {
result = -result;
}
}
return result;
}
pointPair DrawViewDimension::getPointsOneEdge(ReferenceVector references)
{
// Base::Console().Message("DVD::getPointsOneEdge()\n");
App::DocumentObject* refObject = references.front().getObject();
int iSubelement = DrawUtil::getIndexFromName(references.front().getSubName());
if (refObject->isDerivedFrom(TechDraw::DrawViewPart::getClassTypeId())
&& !references.at(0).getSubName().empty()) {
//TODO: Notify if not straight line Edge?
//this is a 2d object (a DVP + subelements)
TechDraw::BaseGeomPtr geom = getViewPart()->getGeomByIndex(iSubelement);
if (!geom) {
std::stringstream ssMessage;
ssMessage << getNameInDocument() << " can not find geometry for 2d reference (1)";
throw Base::RuntimeError(ssMessage.str());
}
if (geom->getGeomType() != TechDraw::GeomType::GENERIC) {
std::stringstream ssMessage;
ssMessage << getNameInDocument() << " 2d reference is a " << geom->geomTypeName();
throw Base::RuntimeError(ssMessage.str());
}
TechDraw::GenericPtr generic = std::static_pointer_cast<TechDraw::Generic>(geom);
return {generic->points[0], generic->points[1]};
}
//this is a 3d object
//get the endpoints of the edge in the DVP's coordinates
Base::Vector3d edgeEnd0, edgeEnd1;
TopoDS_Shape geometry = references.front().getGeometry();
if (geometry.IsNull() || geometry.ShapeType() != TopAbs_EDGE) {
throw Base::RuntimeError("Geometry for dimension reference is null.");
}
const TopoDS_Edge& edge = TopoDS::Edge(geometry);
gp_Pnt gEnd0 = BRep_Tool::Pnt(TopExp::FirstVertex(edge));
gp_Pnt gEnd1 = BRep_Tool::Pnt(TopExp::LastVertex(edge));
pointPair pts(DrawUtil::toVector3d(gEnd0), DrawUtil::toVector3d(gEnd1));
pts.move(getViewPart()->getCurrentCentroid());
pts.project(getViewPart());
return pts;
}
pointPair DrawViewDimension::getPointsTwoEdges(ReferenceVector references)
{
// Base::Console().Message("DVD::getPointsTwoEdges() - %s\n", getNameInDocument());
App::DocumentObject* refObject = references.front().getObject();
int iSubelement0 = DrawUtil::getIndexFromName(references.at(0).getSubName());
int iSubelement1 = DrawUtil::getIndexFromName(references.at(1).getSubName());
if (refObject->isDerivedFrom(TechDraw::DrawViewPart::getClassTypeId())
&& !references.at(0).getSubName().empty()) {
//this is a 2d object (a DVP + subelements)
TechDraw::BaseGeomPtr geom0 = getViewPart()->getGeomByIndex(iSubelement0);
TechDraw::BaseGeomPtr geom1 = getViewPart()->getGeomByIndex(iSubelement1);
if (!geom0 || !geom1) {
std::stringstream ssMessage;
ssMessage << getNameInDocument() << " can not find geometry for 2d reference (2)";
throw Base::RuntimeError(ssMessage.str());
}
return closestPoints(geom0->getOCCEdge(), geom1->getOCCEdge());
}
//this is a 3d object
TopoDS_Shape geometry0 = references.at(0).getGeometry();
TopoDS_Shape geometry1 = references.at(1).getGeometry();
if (geometry0.IsNull() || geometry1.IsNull() || geometry0.ShapeType() != TopAbs_EDGE
|| geometry1.ShapeType() != TopAbs_EDGE) {
throw Base::RuntimeError("Geometry for dimension reference is null.");
}
pointPair pts = closestPoints(geometry0, geometry1);
pts.move(getViewPart()->getCurrentCentroid());
pts.project(getViewPart());
return pts;
}
pointPair DrawViewDimension::getPointsTwoVerts(ReferenceVector references)
{
// Base::Console().Message("DVD::getPointsTwoVerts() - %s\n", getNameInDocument());
App::DocumentObject* refObject = references.front().getObject();
int iSubelement0 = DrawUtil::getIndexFromName(references.at(0).getSubName());
int iSubelement1 = DrawUtil::getIndexFromName(references.at(1).getSubName());
if (refObject->isDerivedFrom(TechDraw::DrawViewPart::getClassTypeId())
&& !references.at(0).getSubName().empty()) {
//this is a 2d object (a DVP + subelements)
TechDraw::VertexPtr v0 = getViewPart()->getProjVertexByIndex(iSubelement0);
TechDraw::VertexPtr v1 = getViewPart()->getProjVertexByIndex(iSubelement1);
if (!v0 || !v1) {
std::stringstream ssMessage;
ssMessage << getNameInDocument() << " can not find geometry for 2d reference (3)";
throw Base::RuntimeError(ssMessage.str());
}
return {v0->point(), v1->point()};
}
//this is a 3d object
TopoDS_Shape geometry0 = references.at(0).getGeometry();
TopoDS_Shape geometry1 = references.at(1).getGeometry();
if (geometry0.IsNull() || geometry1.IsNull() || geometry0.ShapeType() != TopAbs_VERTEX
|| geometry1.ShapeType() != TopAbs_VERTEX) {
throw Base::RuntimeError("Geometry for dimension reference is null.");
}
const TopoDS_Vertex& vertex0 = TopoDS::Vertex(geometry0);
const TopoDS_Vertex& vertex1 = TopoDS::Vertex(geometry1);
gp_Pnt gPoint0 = BRep_Tool::Pnt(vertex0);
gp_Pnt gPoint1 = BRep_Tool::Pnt(vertex1);
pointPair pts(DrawUtil::toVector3d(gPoint0), DrawUtil::toVector3d(gPoint1));
pts.move(getViewPart()->getCurrentCentroid());
pts.project(getViewPart());
return pts;
}
pointPair DrawViewDimension::getPointsEdgeVert(ReferenceVector references)
{
// Base::Console().Message("DVD::getPointsEdgeVert() - %s\n", getNameInDocument());
App::DocumentObject* refObject = references.front().getObject();
int iSubelement0 = DrawUtil::getIndexFromName(references.at(0).getSubName());
int iSubelement1 = DrawUtil::getIndexFromName(references.at(1).getSubName());
if (refObject->isDerivedFrom(TechDraw::DrawViewPart::getClassTypeId())
&& !references.at(0).getSubName().empty()) {
//this is a 2d object (a DVP + subelements)
TechDraw::BaseGeomPtr edge;
TechDraw::VertexPtr vertex;
if (DrawUtil::getGeomTypeFromName(references.at(0).getSubName()) == "Edge") {
edge = getViewPart()->getGeomByIndex(iSubelement0);
vertex = getViewPart()->getProjVertexByIndex(iSubelement1);
}
else {
edge = getViewPart()->getGeomByIndex(iSubelement1);
vertex = getViewPart()->getProjVertexByIndex(iSubelement0);
}
if (!vertex || !edge) {
throw Base::RuntimeError("Missing geometry for dimension (4)");
}
return closestPoints(edge->getOCCEdge(), vertex->getOCCVertex());
}
//this is a 3d object
TopoDS_Shape geometry0 = references.at(0).getGeometry();
TopoDS_Shape geometry1 = references.at(1).getGeometry();
if (geometry0.IsNull() || geometry1.IsNull() || geometry0.ShapeType() != TopAbs_VERTEX
|| geometry1.ShapeType() != TopAbs_VERTEX) {
throw Base::RuntimeError("Geometry for dimension reference is null.");
}
pointPair pts = closestPoints(geometry0, geometry1);
pts.move(getViewPart()->getCurrentCentroid());
pts.project(getViewPart());
return pts;
}
arcPoints DrawViewDimension::getArcParameters(ReferenceVector references)
{
// Base::Console().Message("DVD::getArcParameters()\n");
App::DocumentObject* refObject = references.front().getObject();
int iSubelement = DrawUtil::getIndexFromName(references.front().getSubName());
if (refObject->isDerivedFrom(TechDraw::DrawViewPart::getClassTypeId())
&& !references.at(0).getSubName().empty()) {
//this is a 2d object (a DVP + subelements)
TechDraw::BaseGeomPtr geom = getViewPart()->getGeomByIndex(iSubelement);
if (!geom) {
std::stringstream ssMessage;
ssMessage << getNameInDocument() << " can not find geometry for 2d reference (4)";
throw Base::RuntimeError(ssMessage.str());
}
return arcPointsFromBaseGeom(getViewPart()->getGeomByIndex(iSubelement));
}
//this is a 3d reference
TopoDS_Shape geometry = references.front().getGeometry();
if (geometry.IsNull() || geometry.ShapeType() != TopAbs_EDGE) {
throw Base::RuntimeError("Geometry for dimension reference is null.");
}
const TopoDS_Edge& edge = TopoDS::Edge(geometry);
arcPoints pts = arcPointsFromEdge(edge);
pts.move(getViewPart()->getCurrentCentroid());
pts.project(getViewPart());
return pts;
}
arcPoints DrawViewDimension::arcPointsFromBaseGeom(TechDraw::BaseGeomPtr base)
{
TechDraw::CirclePtr circle;
arcPoints pts;
pts.center = Base::Vector3d(0.0, 0.0, 0.0);
pts.radius = 0.0;
if ((base && base->getGeomType() == TechDraw::GeomType::CIRCLE)
|| (base && base->getGeomType() == TechDraw::GeomType::ARCOFCIRCLE)) {
circle = std::static_pointer_cast<TechDraw::Circle>(base);
pts.center = Base::Vector3d(circle->center.x, circle->center.y, 0.0);
pts.radius = circle->radius;
if (base->getGeomType() == TechDraw::GeomType::ARCOFCIRCLE) {
TechDraw::AOCPtr aoc = std::static_pointer_cast<TechDraw::AOC>(circle);
pts.isArc = true;
pts.onCurve.first(Base::Vector3d(aoc->midPnt.x, aoc->midPnt.y, 0.0));
pts.midArc = Base::Vector3d(aoc->midPnt.x, aoc->midPnt.y, 0.0);
pts.arcEnds.first(Base::Vector3d(aoc->startPnt.x, aoc->startPnt.y, 0.0));
pts.arcEnds.second(Base::Vector3d(aoc->endPnt.x, aoc->endPnt.y, 0.0));
pts.arcCW = aoc->cw;
}
else {
pts.isArc = false;
pts.onCurve.first(pts.center
+ Base::Vector3d(1, 0, 0) * circle->radius);//arbitrary point on edge
pts.onCurve.second(
pts.center + Base::Vector3d(-1, 0, 0) * circle->radius);//arbitrary point on edge
}
}
else if ((base && base->getGeomType() == TechDraw::GeomType::ELLIPSE)
|| (base && base->getGeomType() == TechDraw::GeomType::ARCOFELLIPSE)) {
TechDraw::EllipsePtr ellipse = std::static_pointer_cast<TechDraw::Ellipse>(base);
if (ellipse->closed()) {
double r1 = ellipse->minor;
double r2 = ellipse->major;
double rAvg = (r1 + r2) / 2.0;
pts.center = Base::Vector3d(ellipse->center.x, ellipse->center.y, 0.0);
pts.radius = rAvg;
pts.isArc = false;
pts.onCurve.first(pts.center + Base::Vector3d(1, 0, 0) * rAvg);//arbitrary point on edge
pts.onCurve.second(pts.center
+ Base::Vector3d(-1, 0, 0) * rAvg);//arbitrary point on edge
}
else {
TechDraw::AOEPtr aoe = std::static_pointer_cast<TechDraw::AOE>(base);
double r1 = aoe->minor;
double r2 = aoe->major;
double rAvg = (r1 + r2) / 2.0;
pts.isArc = true;
pts.center = Base::Vector3d(aoe->center.x, aoe->center.y, 0.0);
pts.radius = rAvg;
pts.arcEnds.first(Base::Vector3d(aoe->startPnt.x, aoe->startPnt.y, 0.0));
pts.arcEnds.second(Base::Vector3d(aoe->endPnt.x, aoe->endPnt.y, 0.0));
pts.midArc = Base::Vector3d(aoe->midPnt.x, aoe->midPnt.y, 0.0);
pts.arcCW = aoe->cw;
pts.onCurve.first(Base::Vector3d(aoe->midPnt.x, aoe->midPnt.y, 0.0));//for radius
// pts.onCurve.first(pts.center + Base::Vector3d(1, 0,0) * rAvg); //for diameter
pts.onCurve.second(pts.center
+ Base::Vector3d(-1, 0, 0) * rAvg);//arbitrary point on edge
}
}
else if (base && base->getGeomType() == TechDraw::GeomType::BSPLINE) {
TechDraw::BSplinePtr spline = std::static_pointer_cast<TechDraw::BSpline>(base);
if (spline->isCircle()) {
bool arc;
double rad;
Base::Vector3d center;
//bool circ =
GeometryUtils::getCircleParms(spline->getOCCEdge(), rad, center, arc);
pts.center = Base::Vector3d(center.x, center.y, 0.0);
pts.radius = rad;
pts.arcEnds.first(Base::Vector3d(spline->startPnt.x, spline->startPnt.y, 0.0));
pts.arcEnds.second(Base::Vector3d(spline->endPnt.x, spline->endPnt.y, 0.0));
pts.midArc = Base::Vector3d(spline->midPnt.x, spline->midPnt.y, 0.0);
pts.isArc = arc;
pts.arcCW = spline->cw;
if (arc) {
pts.onCurve.first(Base::Vector3d(spline->midPnt.x, spline->midPnt.y, 0.0));
}
else {
pts.onCurve.first(pts.center
+ Base::Vector3d(1, 0, 0) * rad);//arbitrary point on edge
pts.onCurve.second(pts.center
+ Base::Vector3d(-1, 0, 0) * rad);//arbitrary point on edge
}
}
else {
//fubar - can't have non-circular spline as target of Diameter dimension, but this is already
//checked, so something has gone badly wrong.
Base::Console().Error("%s: can not make a Circle from this BSpline edge\n",
getNameInDocument());
throw Base::RuntimeError("Bad BSpline geometry for arc dimension");
}
}
else {
std::stringstream ssMessage;
ssMessage << getNameInDocument() << " 2d reference is a " << base->geomTypeName();
throw Base::RuntimeError(ssMessage.str());
}
return pts;
}
arcPoints DrawViewDimension::arcPointsFromEdge(TopoDS_Edge occEdge)
{
arcPoints pts;
pts.isArc = !BRep_Tool::IsClosed(occEdge);
pts.arcCW = false;
BRepAdaptor_Curve adapt(occEdge);
double pFirst = adapt.FirstParameter();
double pLast = adapt.LastParameter();
double pMid = (pFirst + pLast) / 2.0;
BRepLProp_CLProps props(adapt, pFirst, 0, Precision::Confusion());
pts.arcEnds.first(DrawUtil::toVector3d(props.Value()));
props.SetParameter(pLast);
pts.arcEnds.second(DrawUtil::toVector3d(props.Value()));
props.SetParameter(pMid);
pts.onCurve.first(DrawUtil::toVector3d(props.Value()));
pts.onCurve.second(DrawUtil::toVector3d(props.Value()));
pts.midArc = DrawUtil::toVector3d(props.Value());
if (adapt.GetType() == GeomAbs_Circle) {
gp_Circ circle = adapt.Circle();
pts.center = DrawUtil::toVector3d(circle.Location());
pts.radius = circle.Radius();
if (pts.isArc) {
//part of circle
gp_Ax1 axis = circle.Axis();
gp_Vec startVec = DrawUtil::togp_Vec(pts.arcEnds.first() - pts.center);
gp_Vec endVec = DrawUtil::togp_Vec(pts.arcEnds.second() - pts.center);
double angle = startVec.AngleWithRef(endVec, axis.Direction().XYZ());
pts.arcCW = (angle < 0.0);
}
else {
//full circle
pts.onCurve.first(pts.center
+ Base::Vector3d(1, 0, 0) * pts.radius);//arbitrary point on edge
pts.onCurve.second(pts.center
+ Base::Vector3d(-1, 0, 0) * pts.radius);//arbitrary point on edge
}
}
else if (adapt.GetType() == GeomAbs_Ellipse) {
gp_Elips ellipse = adapt.Ellipse();
pts.center = DrawUtil::toVector3d(ellipse.Location());
pts.radius = (ellipse.MajorRadius() + ellipse.MinorRadius()) / 2.0;
if (pts.isArc) {
//part of ellipse
gp_Ax1 axis = ellipse.Axis();
gp_Vec startVec = DrawUtil::togp_Vec(pts.arcEnds.first() - pts.center);
gp_Vec endVec = DrawUtil::togp_Vec(pts.arcEnds.second() - pts.center);
double angle = startVec.AngleWithRef(endVec, axis.Direction().XYZ());
pts.arcCW = (angle < 0.0);
}
else {
//full ellipse
pts.onCurve.first(pts.center
+ Base::Vector3d(1, 0, 0) * pts.radius);//arbitrary point on edge
pts.onCurve.second(pts.center
+ Base::Vector3d(-1, 0, 0) * pts.radius);//arbitrary point on edge
}
}
else if (adapt.GetType() == GeomAbs_BSplineCurve) {
if (GeometryUtils::isCircle(occEdge)) {
bool isArc(false);
TopoDS_Edge circleEdge = GeometryUtils::asCircle(occEdge, isArc);
pts.isArc = isArc;
BRepAdaptor_Curve adaptCircle(circleEdge);
if (adaptCircle.GetType() != GeomAbs_Circle) {
throw Base::RuntimeError("failed to get circle from bspline");
}
gp_Circ circle = adapt.Circle();
//TODO: same code as above. reuse opportunity.
pts.center = DrawUtil::toVector3d(circle.Location());
pts.radius = circle.Radius();
if (pts.isArc) {
//part of circle
gp_Ax1 axis = circle.Axis();
gp_Vec startVec = DrawUtil::togp_Vec(pts.arcEnds.first() - pts.center);
gp_Vec endVec = DrawUtil::togp_Vec(pts.arcEnds.second() - pts.center);
double angle = startVec.AngleWithRef(endVec, axis.Direction().XYZ());
pts.arcCW = (angle < 0.0);
}
else {
//full circle
pts.onCurve.first(pts.center
+ Base::Vector3d(1, 0, 0) * pts.radius);//arbitrary point on edge
pts.onCurve.second(
pts.center + Base::Vector3d(-1, 0, 0) * pts.radius);//arbitrary point on edge
}
}
else {
throw Base::RuntimeError("failed to make circle from bspline");
}
}
else {
throw Base::RuntimeError("can not get arc points from this edge");
}
return pts;
}
anglePoints DrawViewDimension::getAnglePointsTwoEdges(ReferenceVector references)
{
//Base::Console().Message("DVD::getAnglePointsTwoEdges() - %s\n", getNameInDocument());
App::DocumentObject* refObject = references.front().getObject();
int iSubelement0 = DrawUtil::getIndexFromName(references.at(0).getSubName());
int iSubelement1 = DrawUtil::getIndexFromName(references.at(1).getSubName());
if (refObject->isDerivedFrom(TechDraw::DrawViewPart::getClassTypeId())
&& !references.at(0).getSubName().empty()) {
//this is a 2d object (a DVP + subelements)
TechDraw::BaseGeomPtr geom0 = getViewPart()->getGeomByIndex(iSubelement0);
TechDraw::BaseGeomPtr geom1 = getViewPart()->getGeomByIndex(iSubelement1);
if (!geom0 || !geom1) {
std::stringstream ssMessage;
ssMessage << getNameInDocument() << " can not find geometry for 2d reference (5)";
throw Base::RuntimeError(ssMessage.str());
}
if (geom0->getGeomType() != TechDraw::GeomType::GENERIC) {
std::stringstream ssMessage;
ssMessage << getNameInDocument() << " first 2d reference is a "
<< geom0->geomTypeName();
throw Base::RuntimeError(ssMessage.str());
}
if (geom1->getGeomType() != TechDraw::GeomType::GENERIC) {
std::stringstream ssMessage;
ssMessage << getNameInDocument() << " second 2d reference is a "
<< geom0->geomTypeName();
throw Base::RuntimeError(ssMessage.str());
}
TechDraw::GenericPtr generic0 = std::static_pointer_cast<TechDraw::Generic>(geom0);
TechDraw::GenericPtr generic1 = std::static_pointer_cast<TechDraw::Generic>(geom1);
Base::Vector3d apex = generic0->apparentInter(generic1);
Base::Vector3d farPoint0, farPoint1;
//pick the end of generic0 farthest from the apex
if ((generic0->getStartPoint() - apex).Length()
> (generic0->getEndPoint() - apex).Length()) {
farPoint0 = generic0->getStartPoint();
}
else {
farPoint0 = generic0->getEndPoint();
}
//pick the end of generic1 farthest from the apex
if ((generic1->getStartPoint() - apex).Length()
> (generic1->getEndPoint() - apex).Length()) {
farPoint1 = generic1->getStartPoint();
}
else {
farPoint1 = generic1->getEndPoint();
}
Base::Vector3d leg0Dir = (generic0->getStartPoint() - generic0->getEndPoint()).Normalize();
Base::Vector3d leg1Dir = (generic1->getStartPoint() - generic1->getEndPoint()).Normalize();
if (DrawUtil::fpCompare(fabs(leg0Dir.Dot(leg1Dir)), 1.0)) {
//legs of the angle are parallel.
throw Base::RuntimeError("Can not make angle from parallel edges");
}
Base::Vector3d extenPoint0 = farPoint0;//extension line points
Base::Vector3d extenPoint1 = farPoint1;
if (DrawUtil::fpCompare(fabs(leg0Dir.Dot(leg1Dir)), 0.0)) {
//legs of angle are perpendicular farPoints will do
}
else {
//legs of the angle are skew
//project farthest points onto opposite edge
Base::Vector3d projFar0OnLeg1 = farPoint0.Perpendicular(apex, leg1Dir);
Base::Vector3d projFar1OnLeg0 = farPoint1.Perpendicular(apex, leg0Dir);
if (DrawUtil::isBetween(projFar0OnLeg1, generic1->getStartPoint(),
generic1->getEndPoint())) {
extenPoint1 = projFar0OnLeg1;
}
else if (DrawUtil::isBetween(projFar1OnLeg0, generic0->getStartPoint(),
generic0->getEndPoint())) {
extenPoint0 = projFar1OnLeg0;
}
}
anglePoints pts;
pts.first(extenPoint0);
pts.second(extenPoint1);
pts.vertex(apex);
return pts;
}
//this is a 3d object
TopoDS_Shape geometry0 = references.at(0).getGeometry();
TopoDS_Shape geometry1 = references.at(1).getGeometry();
if (geometry0.IsNull() || geometry1.IsNull() || geometry0.ShapeType() != TopAbs_EDGE
|| geometry1.ShapeType() != TopAbs_EDGE) {
throw Base::RuntimeError("Geometry for dimension reference is null.");
}
TopoDS_Edge edge0 = TopoDS::Edge(geometry0);
BRepAdaptor_Curve adapt0(edge0);
TopoDS_Edge edge1 = TopoDS::Edge(geometry1);
BRepAdaptor_Curve adapt1(edge1);
if (adapt0.GetType() != GeomAbs_Line || adapt1.GetType() != GeomAbs_Line) {
throw Base::RuntimeError("Geometry for angle dimension must be lines.");
}
gp_Pnt gStart0 = BRep_Tool::Pnt(TopExp::FirstVertex(edge0));
gp_Pnt gEnd0 = BRep_Tool::Pnt(TopExp::LastVertex(edge0));
gp_Vec gDir0(gEnd0.XYZ() - gStart0.XYZ());
gp_Pnt gStart1 = BRep_Tool::Pnt(TopExp::FirstVertex(edge1));
gp_Pnt gEnd1 = BRep_Tool::Pnt(TopExp::LastVertex(edge1));
gp_Vec gDir1(gEnd1.XYZ() - gStart1.XYZ());
Base::Vector3d vApex;
bool haveIntersection = DrawUtil::intersect2Lines3d(
DrawUtil::toVector3d(gStart0), DrawUtil::toVector3d(gDir0), DrawUtil::toVector3d(gStart1),
DrawUtil::toVector3d(gDir1), vApex);
if (!haveIntersection) {
throw Base::RuntimeError("Geometry for 3d angle dimension does not intersect");
}
gp_Pnt gApex = DrawUtil::togp_Pnt(vApex);
gp_Pnt gFar0 = gEnd0;
if (gStart0.Distance(gApex) > gEnd0.Distance(gApex)) {
gFar0 = gStart0;
}
gp_Pnt gFar1 = gEnd1;
if (gStart1.Distance(gApex) > gEnd1.Distance(gApex)) {
gFar1 = gStart1;
}
anglePoints pts(DrawUtil::toVector3d(gApex), DrawUtil::toVector3d(gFar0),
DrawUtil::toVector3d(gFar1));
pts.move(getViewPart()->getCurrentCentroid());
pts.project(getViewPart());
return pts;
}
//TODO: this makes assumptions about the order of references (p - v - p). is this checked somewhere?
anglePoints DrawViewDimension::getAnglePointsThreeVerts(ReferenceVector references)
{
// Base::Console().Message("DVD::getAnglePointsThreeVerts() - %s\n", getNameInDocument());
if (references.size() < 3) {
throw Base::RuntimeError("Not enough references to make angle dimension");
}
App::DocumentObject* refObject = references.front().getObject();
int iSubelement0 = DrawUtil::getIndexFromName(references.at(0).getSubName());
int iSubelement1 = DrawUtil::getIndexFromName(references.at(1).getSubName());
int iSubelement2 = DrawUtil::getIndexFromName(references.at(2).getSubName());
if (refObject->isDerivedFrom(TechDraw::DrawViewPart::getClassTypeId())
&& !references.at(0).getSubName().empty()) {
//this is a 2d object (a DVP + subelements)
TechDraw::VertexPtr vert0 = getViewPart()->getProjVertexByIndex(iSubelement0);
TechDraw::VertexPtr vert1 = getViewPart()->getProjVertexByIndex(iSubelement1);
TechDraw::VertexPtr vert2 = getViewPart()->getProjVertexByIndex(iSubelement2);
if (!vert0 || !vert1 || !vert2) {
throw Base::RuntimeError("References for three point angle dimension are not vertices");
}
anglePoints pts(vert1->point(), vert0->point(), vert2->point());
return pts;
}
//this is a 3d object
TopoDS_Shape geometry0 = references.at(0).getGeometry();
TopoDS_Shape geometry1 = references.at(1).getGeometry();
TopoDS_Shape geometry2 = references.at(2).getGeometry();
if (geometry0.IsNull() || geometry1.IsNull() || geometry2.IsNull()
|| geometry0.ShapeType() != TopAbs_VERTEX || geometry1.ShapeType() != TopAbs_VERTEX
|| geometry2.ShapeType() != TopAbs_VERTEX) {
throw Base::RuntimeError("Geometry for dimension reference is null.");
}
TopoDS_Vertex vertex0 = TopoDS::Vertex(geometry0);
gp_Pnt point0 = BRep_Tool::Pnt(vertex0);
TopoDS_Vertex vertex1 = TopoDS::Vertex(geometry1);
gp_Pnt point1 = BRep_Tool::Pnt(vertex1);
TopoDS_Vertex vertex2 = TopoDS::Vertex(geometry2);
gp_Pnt point2 = BRep_Tool::Pnt(vertex2);
anglePoints pts(DrawUtil::toVector3d(point1), DrawUtil::toVector3d(point0),
DrawUtil::toVector3d(point2));
pts.move(getViewPart()->getCurrentCentroid());
pts.project(getViewPart());
return pts;
}
DrawViewPart* DrawViewDimension::getViewPart() const
{
if (References2D.getValues().empty()) {
return nullptr;
}
return dynamic_cast<TechDraw::DrawViewPart*>(References2D.getValues().at(0));
}
//return the references controlling this dimension. 3d references are used when available
//otherwise 2d references are returned. no checking is performed. Result is pairs of (object, subName)
ReferenceVector DrawViewDimension::getEffectiveReferences() const
{
// Base::Console().Message("DVD::getEffectiveReferences()\n");
const std::vector<App::DocumentObject*>& objects3d = References3D.getValues();
const std::vector<std::string>& subElements3d = References3D.getSubValues();
const std::vector<App::DocumentObject*>& objects = References2D.getValues();
const std::vector<std::string>& subElements = References2D.getSubValues();
ReferenceVector effectiveRefs;
if (!objects3d.empty()) {
//use 3d references by preference
int refCount = objects3d.size();
for (int i = 0; i < refCount; i++) {
ReferenceEntry ref(objects3d.at(i), std::string(subElements3d.at(i)));
effectiveRefs.push_back(ref);
}
}
else {
//use 2d references if necessary
int refCount = objects.size();
for (int i = 0; i < refCount; i++) {
ReferenceEntry ref(objects.at(i), subElements.at(i));
effectiveRefs.push_back(ref);
}
}
return effectiveRefs;
}
//return the 2d references as a ReferenceVector
ReferenceVector DrawViewDimension::getReferences2d() const
{
const std::vector<App::DocumentObject*>& objects = References2D.getValues();
const std::vector<std::string>& subElements = References2D.getSubValues();
ReferenceVector refs2d;
int refCount = objects.size();
for (int i = 0; i < refCount; i++) {
ReferenceEntry ref(objects.at(i), subElements.at(i));
refs2d.push_back(ref);
}
return refs2d;
}
//return the 3d references as a ReferenceVector
ReferenceVector DrawViewDimension::getReferences3d() const
{
const std::vector<App::DocumentObject*>& objects3d = References3D.getValues();
const std::vector<std::string>& subElements3d = References3D.getSubValues();
ReferenceVector refs3d;
int refCount = objects3d.size();
for (int i = 0; i < refCount; i++) {
ReferenceEntry ref(objects3d.at(i), subElements3d.at(i));
refs3d.push_back(ref);
}
return refs3d;
}
void DrawViewDimension::replaceReferenceSubElement2d(int iRef, std::string& newSubelement)
{
// Base::Console().Message("DVD::replaceReferenceSubElement2d(%d, %s)\n", iRef, newSubelement.c_str());
ReferenceVector refs = getReferences2d();
refs.at(iRef).setSubName(newSubelement);
setReferences2d(refs);
}
void DrawViewDimension::replaceReferenceSubElement3d(int iRef, std::string& newSubelement)
{
ReferenceVector refs = getReferences3d();
refs.at(iRef).setSubName(newSubelement);
setReferences3d(refs);
}
//what configuration of references do we have - Vertex-Vertex, Edge-Vertex, Edge, ...
int DrawViewDimension::getRefType() const
{
if (isExtentDim()) {
return RefType::extent;
}
ReferenceVector refs = getEffectiveReferences();
std::vector<std::string> subNames;
//std::vector<std::string> subNames = getEffectiveSubNames(); //???
for (auto& ref : refs) {
if (ref.getSubName().empty()) {
//skip this one
continue;
}
subNames.push_back(ref.getSubName());
}
if (subNames.empty()) {
//something went wrong, there were no subNames.
Base::Console().Message("DVD::getRefType - %s - there are no subNames.\n",
getNameInDocument());
return 0;
}
return getRefTypeSubElements(subNames);
}
//TODO: Gui/DimensionValidators.cpp has almost the same code
//decide what the reference configuration is by examining the names of the sub elements
int DrawViewDimension::getRefTypeSubElements(const std::vector<std::string>& subElements)
{
int refType = invalidRef;
int refEdges = 0, refVertices = 0;
for (const auto& se : subElements) {
if (DrawUtil::getGeomTypeFromName(se) == "Vertex") {
refVertices++;
}
if (DrawUtil::getGeomTypeFromName(se) == "Edge") {
refEdges++;
}
}
if (refEdges == 0 && refVertices == 2) {
refType = twoVertex;
}
if (refEdges == 0 && refVertices == 3) {
refType = threeVertex;
}
if (refEdges == 1 && refVertices == 0) {
refType = oneEdge;
}
if (refEdges == 1 && refVertices == 1) {
refType = vertexEdge;
}
if (refEdges == 2 && refVertices == 0) {
refType = twoEdge;
}
return refType;
}
//! validate 2D references - only checks if the target exists
bool DrawViewDimension::checkReferences2D() const
{
// Base::Console().Message("DVD::checkReferences2d() - %s\n", getNameInDocument());
const std::vector<App::DocumentObject*>& objects = References2D.getValues();
if (objects.empty()) {
return false;
}
const std::vector<std::string>& subElements = References2D.getSubValues();
if (subElements.empty()) {
//must have at least 1 null string entry to balance DVP
return false;
}
if (subElements.front().empty() && !References3D.getValues().empty()) {
//this is (probably) a dim with 3d refs
return true;
}
for (auto& s : subElements) {
if (s.empty()) {
return false;
}
int idx = DrawUtil::getIndexFromName(s);
if (DrawUtil::getGeomTypeFromName(s) == "Edge") {
TechDraw::BaseGeomPtr geom = getViewPart()->getGeomByIndex(idx);
if (!geom) {
return false;
}
}
else if (DrawUtil::getGeomTypeFromName(s) == "Vertex") {
TechDraw::VertexPtr v = getViewPart()->getProjVertexByIndex(idx);
if (!v) {
return false;
}
}
}
return true;
}
void DrawViewDimension::updateSavedGeometry()
{
// Base::Console().Message("DVD::updateSavedGeometry() - %s - savedGeometry: %d\n",
// getNameInDocument(), SavedGeometry.getValues().size());
ReferenceVector references = getEffectiveReferences();
if (references.empty()) {
// no references to save
return;
}
std::vector<TopoShape> newGeometry;
const std::vector<TopoShape> oldGeometry = SavedGeometry.getValues();
//need to clean up old geometry objects here?
size_t iOldGeom(0);
for (auto& entry : references) {
if (entry.getSubName().empty()) {
// view only reference has no geometry.
continue;
}
if (entry.isValid()) {
newGeometry.push_back(entry.asTopoShape());
} else {
// use old geometry entry? null shape? have to put something in the vector
// so SavedGeometry and references stay in sync.
if (iOldGeom < oldGeometry.size()) {
newGeometry.push_back(oldGeometry.at(iOldGeom));
} else {
newGeometry.push_back(Part::TopoShape());
}
}
iOldGeom++;
}
if (!newGeometry.empty()) {
SavedGeometry.setValues(newGeometry);
}
}
// routines related to detecting that references no longer point to the same geometry as
// when they were created.
// returns true if the saved geometry is the same as the current reference geometry
// returns false if the saved geometry is different from the the current reference geometry
bool DrawViewDimension::compareSavedGeometry()
{
// Base::Console().Message("DVD::compareSavedGeometry() - isRestoring: %d\n", isRestoring());
const std::vector<TopoShape> savedGeometry = SavedGeometry.getValues();
if (savedGeometry.empty()) {
// no saved geometry, so we have nothing to compare, so we don't know if there has been a change
// this should return false, since something != nothing
// Base::Console().Warning("%s has no saved reference geometry!\n", getNameInDocument());
return false;
}
ReferenceVector references = getEffectiveReferences();
std::vector<Part::TopoShape> referenceGeometry;
for (auto& entry : references) {
referenceGeometry.push_back(entry.asTopoShape());
}
if (savedGeometry.size() != referenceGeometry.size()) {
// Base::Console().Message("DVD::compareSavedGeometry - geometry sizes have changed\n");
return false;
}
int geometryCount = savedGeometry.size();
int iGeom = 0;
for ( ; iGeom < geometryCount; iGeom++) {
if (savedGeometry.at(iGeom).getTypeId() != referenceGeometry.at(iGeom).getTypeId()) {
// Base::Console().Message("DVD::compareSavedGeometry - saved geometry (%d) has different type\n", iGeom);
return false;
}
}
//saved and reference geometry have same count and types
for (iGeom = 0; iGeom < geometryCount; iGeom++) {
Part::TopoShape temp = savedGeometry.at(iGeom);
if (!m_matcher->compareGeometry(temp, referenceGeometry.at(iGeom)) ) {
// Base::Console().Message("DVD::compareSavedGeometry - saved geometry (%d) does not match current geometry\n", iGeom);
return false;
}
}
//free the reference geometry?
return true;
}
// deal with the situation where references do not point to the same geometry as
// when they were created.
bool DrawViewDimension::fixExactMatch()
{
// Base::Console().Message("DVD::fixExactMatch() - reference geometry has changed\n");
if (!Preferences::autoCorrectDimRefs()) {
return false;
}
ReferenceVector references = getEffectiveReferences();
if (references.empty()) {
// could not get refs, something is wrong!
return false;
}
std::vector< std::pair<int, std::string> > refsToFix2d;
std::vector< std::pair<int, std::string> > refsToFix3d;
bool success(true);
int referenceCount = references.size();
int iRef = 0;
for ( ; iRef < referenceCount; iRef++) {
std::string newReference("");
TopoDS_Shape geomShape = references.at(iRef).getGeometry();
if (geomShape.IsNull()) {
// Base::Console().Message("DVD::fixExactMatch - no geometry found for reference: %d\n", iRef);
return false;
}
if (references.at(iRef).is3d()) {
if (geomShape.ShapeType() == TopAbs_VERTEX) {
newReference = recoverChangedVertex3d(iRef);
} else {
newReference = recoverChangedEdge3d(iRef);
}
if (!newReference.empty()) {
std::pair<int, std::string> toFix(iRef, newReference);
refsToFix3d.push_back(toFix);
} else {
Base::Console().Warning("%s - no exact match for changed 3d reference: %d\n", getNameInDocument(), iRef);
success = false;
}
} else {
if (geomShape.ShapeType() == TopAbs_VERTEX) {
newReference = recoverChangedVertex2d(iRef);
} else {
newReference = recoverChangedEdge2d(iRef);
}
if (!newReference.empty()) {
std::pair<int, std::string> toFix(iRef, newReference);
refsToFix2d.push_back(toFix);
} else {
Base::Console().Warning("%s - no exact match for changed 2d reference: %d\n", getNameInDocument(), iRef);
success = false;
}
}
}
for (auto& fix : refsToFix2d) {
replaceReferenceSubElement2d(fix.first, fix.second);
}
for (auto& fix : refsToFix3d) {
replaceReferenceSubElement3d(fix.first, fix.second);
}
return success;
}
// deal with situation where the current geometry does not match the saved geometry,
// but we did not find an exact match in the geometry pile
void DrawViewDimension::handleNoExactMatch()
{
// Base::Console().Message("DVD::handleNoExactMatch()\n");
// Base::Console().Message("%s - trying to match changed geometry - stage 2\n", getNameInDocument());
// this is where we insert the clever logic to determine that the changed geometry
// actually still represents the "front top left" edge.
// after figuring out the new reference, save the geometry
// updateSavedGeometry();
m_referencesCorrect = true;
}
//find an edge in the view that matches the reference entry's type and characteristics
std::string DrawViewDimension::recoverChangedEdge2d(int iReference)
{
// Base::Console().Message("DVD::recoverChangedEdge2d(ref: %d)\n", iReference);
double scale = getViewPart()->getScale();
Part::TopoShape savedGeometryItem = SavedGeometry.getValues().at(iReference);
std::vector<TechDraw::BaseGeomPtr> gEdges = getViewPart()->getEdgeGeometry();
int iEdge = 0;
for (auto& edge : gEdges) {
Part::TopoShape temp = edge->asTopoShape(scale);
if (savedGeometryItem.getTypeId() != temp.getTypeId()) {
// if the typeIds don't match, we can not compare the geometry
// Base::Console().Message("DVD::recoverChangedEdge2d - types do not match\n");
iEdge++;
continue;
}
bool isSame = m_matcher->compareGeometry(savedGeometryItem, temp);
// Base::Console().Message("DVD::recoverChangedEdge2d - iEdge: %d isSame: %d\n", iEdge, isSame);
if (isSame) {
return std::string("Edge") + std::to_string(iEdge);
}
iEdge++;
}
return std::string("");
}
std::string DrawViewDimension::recoverChangedVertex2d(int iReference)
{
// Base::Console().Message("DVD::recoverChangedVertex2d(%d)\n", iReference);
double scale = getViewPart()->getScale();
std::vector<Part::TopoShape> savedAll = SavedGeometry.getValues();
if (savedAll.empty() ||
iReference >= savedAll.size()) {
return std::string();
}
Part::TopoShape savedGeometryItem = SavedGeometry.getValues().at(iReference);
std::vector<TechDraw::VertexPtr> gVertexAll = getViewPart()->getVertexGeometry();
int iVertex = 0;
for (auto& vert : gVertexAll) {
Part::TopoShape temp = vert->asTopoShape(scale);
bool isSame = m_matcher->compareGeometry(savedGeometryItem, temp);
if (isSame) {
return std::string("Vertex") + std::to_string(iVertex);
}
iVertex++;
}
return std::string("");
}
std::string DrawViewDimension::recoverChangedEdge3d(int iReference)
{
// Base::Console().Message("DVD::recoverChangedEdge3d(%d)\n", iReference);
Part::TopoShape savedGeometryItem = SavedGeometry.getValues().at(iReference);
ReferenceVector references = getEffectiveReferences();
App::DocumentObject* searchObject = references.at(iReference).getObject();
Part::TopoShape shape = Part::Feature::getTopoShape(searchObject);
App::GeoFeature* geoFeat = dynamic_cast<App::GeoFeature*>(searchObject);
//does a feature in a body get the body's globalPlacement??
if (geoFeat) {
shape.setPlacement(geoFeat->globalPlacement());
}
//TODO: these TopoShapes will have to be released when we are finished with them
std::vector<TopoShape> edgesAll = getEdges(shape);
int iEdge = 1; //note that edge numbering starts at 1!
for (auto& edge : edgesAll) {
bool isSame = m_matcher->compareGeometry(savedGeometryItem, edge);
if (isSame) {
return std::string("Edge") + std::to_string(iEdge);
}
iEdge++;
}
return std::string("");
}
// based on Part::TopoShapePyImp::getShapes. Produces a vector of unique edges within the shape
std::vector<TopoShape> DrawViewDimension::getEdges(const TopoShape& inShape)
{
std::vector<TopoShape> ret;
TopTools_IndexedMapOfShape M;
TopExp_Explorer Ex(inShape.getShape(), TopAbs_EDGE);
while (Ex.More()) {
M.Add(Ex.Current());
Ex.Next();
}
for (Standard_Integer k = 1; k <= M.Extent(); k++) {
const TopoDS_Shape& shape = M(k);
ret.push_back(TopoShape(shape));
}
return ret;
}
// as recoverChangedVertex2d, but 3d references do not need to be unscaled
std::string DrawViewDimension::recoverChangedVertex3d(int iReference)
{
// Base::Console().Message("DVD::recoverChangedVertex3d(%d)\n", iReference);
Part::TopoShape savedGeometryItem = SavedGeometry.getValues().at(iReference);
ReferenceVector references = getEffectiveReferences();
App::DocumentObject* searchObject = references.at(iReference).getObject();
Part::TopoShape shape = Part::Feature::getTopoShape(searchObject);
App::GeoFeature* geoFeat = dynamic_cast<App::GeoFeature*>(searchObject);
if (geoFeat) {
shape.setPlacement(geoFeat->globalPlacement());
}
//TODO: these TopoShapes will have to be released when we are finished with them
std::vector<TopoShape> vertsAll = getVertexes(shape);
int iVert = 1; //note that vertex numbering starts at 1!
for (auto& vert : vertsAll) {
bool isSame = m_matcher->compareGeometry(savedGeometryItem, vert);
if (isSame) {
return std::string("Vertex") + std::to_string(iVert);
}
iVert++;
}
return std::string("");
}
// based on Part::TopoShapePyImp::getShapes
std::vector<TopoShape> DrawViewDimension::getVertexes(const TopoShape& inShape)
{
std::vector<TopoShape> ret;
TopTools_IndexedMapOfShape M;
TopExp_Explorer Ex(inShape.getShape(), TopAbs_VERTEX);
while (Ex.More()) {
M.Add(Ex.Current());
Ex.Next();
}
for (Standard_Integer k = 1; k <= M.Extent(); k++) {
const TopoDS_Shape& shape = M(k);
ret.push_back(TopoShape(shape));
}
return ret;
}
pointPair DrawViewDimension::closestPoints(TopoDS_Shape s1, TopoDS_Shape s2) const
{
pointPair result;
BRepExtrema_DistShapeShape extss(s1, s2);
if (!extss.IsDone()) {
throw Base::RuntimeError("DVD::closestPoints - BRepExtrema_DistShapeShape failed");
}
int count = extss.NbSolution();
if (count != 0) {
gp_Pnt p = extss.PointOnShape1(1);
result.first(Base::Vector3d(p.X(), p.Y(), p.Z()));
p = extss.PointOnShape2(1);
result.second(Base::Vector3d(p.X(), p.Y(), p.Z()));
}//TODO: else { explode }
return result;
}
//set the reference property from a reference vector
void DrawViewDimension::setReferences2d(ReferenceVector refs)
{
// Base::Console().Message("DVD::setReferences2d(%d)\n", refs.size());
std::vector<App::DocumentObject*> objects;
std::vector<std::string> subNames;
if (objects.size() != subNames.size()) {
throw Base::IndexError("DVD::setReferences2d - objects and subNames do not match.");
}
for (size_t iRef = 0; iRef < refs.size(); iRef++) {
objects.push_back(refs.at(iRef).getObject());
subNames.push_back(refs.at(iRef).getSubName());
}
References2D.setValues(objects, subNames);
}
//set the reference property from a reference vector
void DrawViewDimension::setReferences3d(ReferenceVector refs)
{
if (refs.empty() && !References3D.getValues().empty()) {
//clear the property of any old links
References3D.setValue(nullptr, nullptr);
return;
}
std::vector<App::DocumentObject*> objects;
std::vector<std::string> subNames;
if (objects.size() != subNames.size()) {
throw Base::IndexError("DVD::setReferences3d - objects and subNames do not match.");
}
for (size_t iRef = 0; iRef < refs.size(); iRef++) {
objects.push_back(refs.at(iRef).getObject());
subNames.push_back(refs.at(iRef).getSubName());
}
References3D.setValues(objects, subNames);
}
//!add Dimension 3D references to measurement
void DrawViewDimension::setAll3DMeasurement()
{
// Base::Console().Message("DVD::setAll3dMeasurement()\n");
measurement->clear();
const std::vector<App::DocumentObject*>& Objs = References3D.getValues();
const std::vector<std::string>& Subs = References3D.getSubValues();
int end = Objs.size();
int i = 0;
for (; i < end; i++) {
static_cast<void>(measurement->addReference3D(Objs.at(i), Subs.at(i)));
}
}
//delete all previous measurements
void DrawViewDimension::clear3DMeasurements()
{
//set sublinklist to empty?
measurement->clear();
}
void DrawViewDimension::dumpRefs2D(const char* text) const
{
Base::Console().Message("DUMP - %s\n", text);
const std::vector<App::DocumentObject*>& objects = References2D.getValues();
const std::vector<std::string>& subElements = References2D.getSubValues();
std::vector<App::DocumentObject*>::const_iterator objIt = objects.begin();
std::vector<std::string>::const_iterator subIt = subElements.begin();
int i = 0;
for (; objIt != objects.end(); objIt++, subIt++, i++) {
Base::Console().Message("DUMP - ref: %d object: %s subElement: %s\n", i,
(*objIt)->getNameInDocument(), (*subIt).c_str());
}
}
double DrawViewDimension::dist2Segs(Base::Vector3d s1, Base::Vector3d e1, Base::Vector3d s2,
Base::Vector3d e2) const
{
gp_Pnt start(s1.x, s1.y, 0.0);
gp_Pnt end(e1.x, e1.y, 0.0);
TopoDS_Vertex v1 = BRepBuilderAPI_MakeVertex(start);
TopoDS_Vertex v2 = BRepBuilderAPI_MakeVertex(end);
BRepBuilderAPI_MakeEdge makeEdge1(v1, v2);
TopoDS_Edge edge1 = makeEdge1.Edge();
start = gp_Pnt(s2.x, s2.y, 0.0);
end = gp_Pnt(e2.x, e2.y, 0.0);
v1 = BRepBuilderAPI_MakeVertex(start);
v2 = BRepBuilderAPI_MakeVertex(end);
BRepBuilderAPI_MakeEdge makeEdge2(v1, v2);
TopoDS_Edge edge2 = makeEdge2.Edge();
BRepExtrema_DistShapeShape extss(edge1, edge2);
if (!extss.IsDone()) {
throw Base::RuntimeError("DVD::dist2Segs - BRepExtrema_DistShapeShape failed");
}
int count = extss.NbSolution();
double minDist = 0.0;
if (count != 0) {
minDist = extss.Value();
}//TODO: else { explode }
return minDist;
}
bool DrawViewDimension::leaderIntersectsArc(Base::Vector3d s, Base::Vector3d pointOnCircle)
{
bool result = false;
const std::vector<std::string>& subElements = References2D.getSubValues();
int idx = DrawUtil::getIndexFromName(subElements[0]);
TechDraw::BaseGeomPtr base = getViewPart()->getGeomByIndex(idx);
if (base && base->getGeomType() == TechDraw::GeomType::ARCOFCIRCLE) {
TechDraw::AOCPtr aoc = std::static_pointer_cast<TechDraw::AOC>(base);
if (aoc->intersectsArc(s, pointOnCircle)) {
result = true;
}
}
else if (base && base->getGeomType() == TechDraw::GeomType::BSPLINE) {
TechDraw::BSplinePtr spline = std::static_pointer_cast<TechDraw::BSpline>(base);
if (spline->isCircle()) {
if (spline->intersectsArc(s, pointOnCircle)) {
result = true;
}
}
}
return result;
}
void DrawViewDimension::saveArrowPositions(const Base::Vector2d positions[])
{
if (!positions) {
m_arrowPositions.first(Base::Vector3d(0.0, 0.0, 0.0));
m_arrowPositions.second(Base::Vector3d(0.0, 0.0, 0.0));
}
else {
double scale = getViewPart()->getScale();
m_arrowPositions.first(Base::Vector3d(positions[0].x, positions[0].y, 0.0) / scale);
m_arrowPositions.second(Base::Vector3d(positions[1].x, positions[1].y, 0.0) / scale);
}
}
//return position within parent view of dimension arrow heads/dimline endpoints
//note positions are in apparent coord (inverted y).
pointPair DrawViewDimension::getArrowPositions() { return m_arrowPositions; }
bool DrawViewDimension::has2DReferences() const
{
// Base::Console().Message("DVD::has2DReferences() - %s\n",getNameInDocument());
const std::vector<App::DocumentObject*>& objects = References2D.getValues();
const std::vector<std::string>& subNames = References2D.getSubValues();
if (objects.empty()) {
//we don't even have a DVP
return false;
}
if (subNames.front().empty()) {
//this is ok, as we must have a null string entry to balance DVP in first object position
return true;
}
//we have a reference to a DVP and at least 1 subName entry, so we have 2d references
return true;
}
//there is no special structure to 3d references, so anything > 0 is good
bool DrawViewDimension::has3DReferences() const { return (References3D.getSize() > 0); }
//has arbitrary or nonzero tolerance
bool DrawViewDimension::hasOverUnderTolerance() const
{
if (ArbitraryTolerances.getValue() || !DrawUtil::fpCompare(OverTolerance.getValue(), 0.0)
|| !DrawUtil::fpCompare(UnderTolerance.getValue(), 0.0)) {
return true;
}
return false;
}
bool DrawViewDimension::showUnits() const
{
return Preferences::getPreferenceGroup("Dimensions")->GetBool("ShowUnits", false);
}
bool DrawViewDimension::useDecimals() const { return Preferences::useGlobalDecimals(); }
std::string DrawViewDimension::getPrefixForDimType() const
{
if (Type.isValue("Radius")) {
return "R";
}
else if (Type.isValue("Diameter")) {
return std::string(Preferences::getPreferenceGroup("Dimensions")->GetASCII("DiameterSymbol", "\xe2\x8c\x80"));// Diameter symbol
}
return "";
}
std::string DrawViewDimension::getDefaultFormatSpec(bool isToleranceFormat) const
{
return m_formatter->getDefaultFormatSpec(isToleranceFormat);
}
bool DrawViewDimension::isExtentDim() const
{
std::string name(getNameInDocument());
if (name.substr(0, 9) == "DimExtent") {
return true;
}
return false;
}
PyObject* DrawViewDimension::getPyObject()
{
if (PythonObject.is(Py::_None())) {
// ref counter is set to 1
PythonObject = Py::Object(new DrawViewDimensionPy(this), true);
}
return Py::new_reference_to(PythonObject);
}