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4946eddc6ba2006e6158f073cdc099c50209d9ec
create/src/Mod/Sketcher/App/ConstraintPyImp.cpp
Abdullah Tahiri 4946eddc6b Sketcher New Feature: Ellipse support 
- Ellipse introduction button via (center,majaxis extreme, a point in edge), ellipse is always CCW so that Z axis goes in the positive direction of the sketch
- Backwards compatibility with files of previous versions of ellipse not defining a phi angle
- Art by Jim (all the icons you see and the XPMs shown on creation of an ellipse)
- Element Widget support for ellipses
- Box selection for ellipses
- Point on Ellipse constraint based on the gardener's method based on Ulrich's function proposal (radcan simplified, i.e. with simplify_radical sage function)
- Tangent: Ellipse to Line based on DeepSOIC's geometric formulation (radcan simplified)

Sketcher New Feature: Internal Alignment Constraint
- The element to which internal alignment is applied has to be selected last.
- All other elements are added in the order of priority, taking into account existing elements
- Art by Jim (beautiful icons).

Sketcher New Feature: Tool to show/hide/restore the internal geometry of an element
- New functionality for show/hide internal geometry:
  toggles between hiding all unused internal geometry elements and showing all internal geometry.
  The restore function is implicit to the showing all internal geometry

Sketcher New Feature: Arc of Ellipse support
- Part::Geometry + Python implementation
- ArcOfEllipse creation method
- Art by Jim (all the icons you see and the XPMs shown on creation of arc of ellipse elements)
- Sketcher Element widget for ArcOfEllipse.

Bug fix: Select elements associated to constraints works now for foci internal alignment constraints
2014-12-20 12:33:29 +01:00

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/***************************************************************************
* Copyright (c) Jürgen Riegel (juergen.riegel@web.de) 2010 *
* *
* 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"
#include <sstream>
#include "Constraint.h"
#include "ConstraintPy.h"
#include "ConstraintPy.cpp"
#include <Base/QuantityPy.h>
using namespace Sketcher;
PyObject *ConstraintPy::PyMake(struct _typeobject *, PyObject *, PyObject *) // Python wrapper
{
// create a new instance of ConstraintPy and the Twin object
return new ConstraintPy(new Constraint);
}
// constructor method
int ConstraintPy::PyInit(PyObject* args, PyObject* /*kwd*/)
{
if (PyArg_ParseTuple(args, "")) {
return 0;
}
PyErr_Clear();
char *ConstraintType;
int FirstIndex = Constraint::GeoUndef;
int FirstPos = none;
int SecondIndex= Constraint::GeoUndef;
int SecondPos = none;
int ThirdIndex = Constraint::GeoUndef;
int ThirdPos = none;
double Value = 0;
// Note: In Python 2.x PyArg_ParseTuple prints a warning if a float is given but an integer is expected.
// This means we must use a PyObject and check afterwards if it's a float or integer.
PyObject* index_or_value;
int any_index;
// ConstraintType, GeoIndex
if (PyArg_ParseTuple(args, "si", &ConstraintType, &FirstIndex)) {
if (strcmp("Horizontal",ConstraintType) == 0) {
this->getConstraintPtr()->Type = Horizontal;
this->getConstraintPtr()->First = FirstIndex;
return 0;
}
else if (strcmp("Vertical",ConstraintType) == 0) {
this->getConstraintPtr()->Type = Vertical;
this->getConstraintPtr()->First = FirstIndex;
return 0;
}
}
PyErr_Clear();
if (PyArg_ParseTuple(args, "siO", &ConstraintType, &FirstIndex, &index_or_value)) {
// ConstraintType, GeoIndex1, GeoIndex2
if (PyInt_Check(index_or_value)) {
SecondIndex = PyInt_AsLong(index_or_value);
bool valid = false;
if (strcmp("Tangent",ConstraintType) == 0) {
this->getConstraintPtr()->Type = Tangent;
valid = true;
}
else if (strcmp("Parallel",ConstraintType) == 0) {
this->getConstraintPtr()->Type = Parallel;
valid = true;
}
else if (strcmp("Perpendicular",ConstraintType) == 0) {
this->getConstraintPtr()->Type = Perpendicular;
valid = true;
}
else if (strcmp("Equal",ConstraintType) == 0) {
this->getConstraintPtr()->Type = Equal;
valid = true;
}
else if (strstr(ConstraintType,"InternalAlignment") != NULL) {
this->getConstraintPtr()->Type = InternalAlignment;
valid = true;
if(strstr(ConstraintType,"EllipseMajorDiameter") != NULL)
this->getConstraintPtr()->AlignmentType=EllipseMajorDiameter;
else if(strstr(ConstraintType,"EllipseMinorDiameter") != NULL)
this->getConstraintPtr()->AlignmentType=EllipseMinorDiameter;
else {
this->getConstraintPtr()->AlignmentType=Undef;
valid = false;
}
}
if (valid) {
this->getConstraintPtr()->First = FirstIndex;
this->getConstraintPtr()->Second = SecondIndex;
return 0;
}
}
// ConstraintType, GeoIndex, Value
if (PyNumber_Check(index_or_value)) { // can be float or int
Value = PyFloat_AsDouble(index_or_value);
bool valid = false;
if (strcmp("Distance",ConstraintType) == 0 ) {
this->getConstraintPtr()->Type = Distance;
valid = true;
}
else if (strcmp("Angle",ConstraintType) == 0 ) {
if (PyObject_TypeCheck(index_or_value, &(Base::QuantityPy::Type))) {
Base::Quantity q = *(static_cast<Base::QuantityPy*>(index_or_value)->getQuantityPtr());
if (q.getUnit() == Base::Unit::Angle)
Value = q.getValueAs(Base::Quantity::Radian);
}
this->getConstraintPtr()->Type = Angle;
valid = true;
}
else if (strcmp("DistanceX",ConstraintType) == 0) {
this->getConstraintPtr()->Type = DistanceX;
valid = true;
}
else if (strcmp("DistanceY",ConstraintType) == 0) {
this->getConstraintPtr()->Type = DistanceY;
valid = true;
}
else if (strcmp("Radius",ConstraintType) == 0) {
this->getConstraintPtr()->Type = Radius;
valid = true;
}
if (valid) {
this->getConstraintPtr()->First = FirstIndex;
this->getConstraintPtr()->Value = Value;
return 0;
}
}
}
PyErr_Clear();
if (PyArg_ParseTuple(args, "siiO", &ConstraintType, &FirstIndex, &any_index, &index_or_value)) {
// ConstraintType, GeoIndex1, PosIndex1, GeoIndex2
if (PyInt_Check(index_or_value)) {
FirstPos = any_index;
SecondIndex = PyInt_AsLong(index_or_value);
bool valid = false;
if (strcmp("Perpendicular", ConstraintType) == 0) {
this->getConstraintPtr()->Type = Perpendicular;
valid = true;
}
else if (strcmp("Tangent", ConstraintType) == 0) {
this->getConstraintPtr()->Type = Tangent;
valid = true;
}
else if (strcmp("PointOnObject", ConstraintType) == 0) {
this->getConstraintPtr()->Type = PointOnObject;
valid = true;
}
else if (strstr(ConstraintType,"InternalAlignment") != NULL) {
this->getConstraintPtr()->Type = InternalAlignment;
valid = true;
if(strstr(ConstraintType,"EllipseFocus1") != NULL)
this->getConstraintPtr()->AlignmentType=EllipseFocus1;
else if(strstr(ConstraintType,"EllipseFocus2") != NULL)
this->getConstraintPtr()->AlignmentType=EllipseFocus2;
else {
this->getConstraintPtr()->AlignmentType=Undef;
valid = false;
}
}
if (valid) {
this->getConstraintPtr()->First = FirstIndex;
this->getConstraintPtr()->FirstPos = (Sketcher::PointPos) FirstPos;
this->getConstraintPtr()->Second = SecondIndex;
return 0;
}
}
// ConstraintType, GeoIndex1, GeoIndex2, Value
// ConstraintType, GeoIndex, PosIndex, Value
if (PyNumber_Check(index_or_value)) { // can be float or int
SecondIndex = any_index;
Value = PyFloat_AsDouble(index_or_value);
//if (strcmp("Distance",ConstraintType) == 0) {
// this->getConstraintPtr()->Type = Distance;
// this->getConstraintPtr()->First = FirstIndex;
// this->getConstraintPtr()->Second = SecondIndex;
// this->getConstraintPtr()->Value = Value;
// return 0;
//}
//else
if (strcmp("Angle",ConstraintType) == 0) {
if (PyObject_TypeCheck(index_or_value, &(Base::QuantityPy::Type))) {
Base::Quantity q = *(static_cast<Base::QuantityPy*>(index_or_value)->getQuantityPtr());
if (q.getUnit() == Base::Unit::Angle)
Value = q.getValueAs(Base::Quantity::Radian);
}
this->getConstraintPtr()->Type = Angle;
this->getConstraintPtr()->First = FirstIndex;
this->getConstraintPtr()->Second = SecondIndex;
this->getConstraintPtr()->Value = Value;
return 0;
}
else if (strcmp("DistanceX",ConstraintType) == 0) {
FirstPos = SecondIndex;
SecondIndex = -1;
this->getConstraintPtr()->Type = DistanceX;
this->getConstraintPtr()->First = FirstIndex;
this->getConstraintPtr()->FirstPos = (Sketcher::PointPos) FirstPos;
this->getConstraintPtr()->Value = Value;
return 0;
}
else if (strcmp("DistanceY",ConstraintType) == 0) {
FirstPos = SecondIndex;
SecondIndex = -1;
this->getConstraintPtr()->Type = DistanceY;
this->getConstraintPtr()->First = FirstIndex;
this->getConstraintPtr()->FirstPos = (Sketcher::PointPos) FirstPos;
this->getConstraintPtr()->Value = Value;
return 0;
}
}
}
PyErr_Clear();
if (PyArg_ParseTuple(args, "siiiO", &ConstraintType, &FirstIndex, &FirstPos, &SecondIndex, &index_or_value)) {
// Value, ConstraintType, GeoIndex1, PosIndex1, GeoIndex2, PosIndex2
if (PyInt_Check(index_or_value)) {
SecondPos = PyInt_AsLong(index_or_value);
bool valid = false;
if (strcmp("Coincident", ConstraintType) == 0) {
this->getConstraintPtr()->Type = Coincident;
valid = true;
}
else if (strcmp("Horizontal", ConstraintType) == 0) {
this->getConstraintPtr()->Type = Horizontal;
valid = true;
}
else if (strcmp("Vertical", ConstraintType) == 0) {
this->getConstraintPtr()->Type = Vertical;
valid = true;
}
else if (strcmp("Perpendicular", ConstraintType) == 0) {
this->getConstraintPtr()->Type = Perpendicular;
valid = true;
}
else if (strcmp("Tangent", ConstraintType) == 0) {
this->getConstraintPtr()->Type = Tangent;
valid = true;
}
if (valid) {
this->getConstraintPtr()->First = FirstIndex;
this->getConstraintPtr()->FirstPos = (Sketcher::PointPos) FirstPos;
this->getConstraintPtr()->Second = SecondIndex;
this->getConstraintPtr()->SecondPos = (Sketcher::PointPos) SecondPos;
return 0;
}
}
// ConstraintType, GeoIndex1, PosIndex1, GeoIndex2, Value
if (PyNumber_Check(index_or_value)) { // can be float or int
Value = PyFloat_AsDouble(index_or_value);
if (strcmp("Distance",ConstraintType) == 0 ) {
this->getConstraintPtr()->Type = Distance;
this->getConstraintPtr()->First = FirstIndex;
this->getConstraintPtr()->FirstPos = (Sketcher::PointPos) FirstPos;
this->getConstraintPtr()->Second = SecondIndex;
this->getConstraintPtr()->Value = Value;
return 0;
}
}
}
PyErr_Clear();
if (PyArg_ParseTuple(args, "siiiiO", &ConstraintType, &FirstIndex, &FirstPos, &SecondIndex, &SecondPos, &index_or_value)) {
// ConstraintType, GeoIndex1, PosIndex1, GeoIndex2, PosIndex2, GeoIndex3
if (PyInt_Check(index_or_value)) {
ThirdIndex = PyInt_AsLong(index_or_value);
if (strcmp("Symmetric",ConstraintType) == 0 ) {
this->getConstraintPtr()->Type = Symmetric;
this->getConstraintPtr()->First = FirstIndex;
this->getConstraintPtr()->FirstPos = (Sketcher::PointPos) FirstPos;
this->getConstraintPtr()->Second = SecondIndex;
this->getConstraintPtr()->SecondPos = (Sketcher::PointPos) SecondPos;
this->getConstraintPtr()->Third = ThirdIndex;
return 0;
}
}
// ConstraintType, GeoIndex1, PosIndex1, GeoIndex2, PosIndex2, Value
if (PyNumber_Check(index_or_value)) { // can be float or int
Value = PyFloat_AsDouble(index_or_value);
bool valid=false;
if (strcmp("Distance",ConstraintType) == 0 ) {
this->getConstraintPtr()->Type = Distance;
valid = true;
}
else if (strcmp("DistanceX",ConstraintType) == 0) {
this->getConstraintPtr()->Type = DistanceX;
valid = true;
}
else if (strcmp("DistanceY",ConstraintType) == 0) {
this->getConstraintPtr()->Type = DistanceY;
valid = true;
}
else if (strcmp("Angle",ConstraintType) == 0 ) {
if (PyObject_TypeCheck(index_or_value, &(Base::QuantityPy::Type))) {
Base::Quantity q = *(static_cast<Base::QuantityPy*>(index_or_value)->getQuantityPtr());
if (q.getUnit() == Base::Unit::Angle)
Value = q.getValueAs(Base::Quantity::Radian);
}
this->getConstraintPtr()->Type = Angle;
valid = true;
}
if (valid) {
this->getConstraintPtr()->First = FirstIndex;
this->getConstraintPtr()->FirstPos = (Sketcher::PointPos) FirstPos;
this->getConstraintPtr()->Second = SecondIndex;
this->getConstraintPtr()->SecondPos = (Sketcher::PointPos) SecondPos;
this->getConstraintPtr()->Value = Value;
return 0;
}
}
}
PyErr_Clear();
if (PyArg_ParseTuple(args, "siiiiii", &ConstraintType, &FirstIndex, &FirstPos, &SecondIndex, &SecondPos, &ThirdIndex, &ThirdPos)) {
// ConstraintType, GeoIndex1, PosIndex1, GeoIndex2, PosIndex2, GeoIndex3, PosIndex3
if (strcmp("Symmetric",ConstraintType) == 0 ) {
this->getConstraintPtr()->Type = Symmetric;
this->getConstraintPtr()->First = FirstIndex;
this->getConstraintPtr()->FirstPos = (Sketcher::PointPos) FirstPos;
this->getConstraintPtr()->Second = SecondIndex;
this->getConstraintPtr()->SecondPos = (Sketcher::PointPos) SecondPos;
this->getConstraintPtr()->Third = ThirdIndex;
this->getConstraintPtr()->ThirdPos = (Sketcher::PointPos) ThirdPos;
return 0;
}
}
std::stringstream str;
str << "Invalid parameters: ";
Py::Tuple tuple(args);
str << tuple.as_string() << std::endl;
str << "Constraint constructor accepts:" << std::endl
<< "-- empty parameter list" << std::endl
<< "-- Constraint type and index" << std::endl;
PyErr_SetString(PyExc_TypeError, str.str().c_str());
return -1;
}
// returns a string which represents the object e.g. when printed in python
std::string ConstraintPy::representation(void) const
{
std::stringstream result;
result << "<Constraint " ;
switch(this->getConstraintPtr()->Type) {
case None : result << "'None'>";break;
case DistanceX : result << "'DistanceX'>";break;
case DistanceY : result << "'DistanceY'>";break;
case Coincident : result << "'Coincident'>";break;
case Horizontal : result << "'Horizontal' (" << getConstraintPtr()->First << ")>";break;
case Vertical : result << "'Vertical' (" << getConstraintPtr()->First << ")>";break;
case Parallel : result << "'Parallel'>";break;
case Tangent : result << "'Tangent'>";break;
case Distance : result << "'Distance'>";break;
case Angle : result << "'Angle'>";break;
case InternalAlignment :
switch(this->getConstraintPtr()->AlignmentType) {
case Undef : result << "'InternalAlignment:Undef'>";break;
case EllipseMajorDiameter : result << "'InternalAlignment:EllipseMajorDiameter'>";break;
case EllipseMinorDiameter : result << "'InternalAlignment:EllipseMinorDiameter'>";break;
case EllipseFocus1 : result << "'InternalAlignment:EllipseFocus1'>";break;
case EllipseFocus2 : result << "'InternalAlignment:EllipseFocus2'>";break;
default : result << "'InternalAlignment:?'>";break;
}
break;
default : result << "'?'>";break;
}
return result.str();
}
Py::Int ConstraintPy::getFirst(void) const
{
return Py::Int(this->getConstraintPtr()->First);
}
void ConstraintPy::setFirst(Py::Int arg)
{
this->getConstraintPtr()->First = arg;
}
Py::Int ConstraintPy::getSecond(void) const
{
return Py::Int(this->getConstraintPtr()->Second);
}
void ConstraintPy::setSecond(Py::Int arg)
{
this->getConstraintPtr()->Second = arg;
}
Py::String ConstraintPy::getName(void) const
{
return Py::String(this->getConstraintPtr()->Name);
}
void ConstraintPy::setName(Py::String arg)
{
this->getConstraintPtr()->Name = arg;
}
PyObject *ConstraintPy::getCustomAttributes(const char* /*attr*/) const
{
return 0;
}
int ConstraintPy::setCustomAttributes(const char* /*attr*/, PyObject* /*obj*/)
{
return 0;
}
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