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Body.cpp
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Body.cpp
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/***************************************************************************
* Copyright (c) 2010 Juergen Riegel <FreeCAD@juergen-riegel.net> *
* *
* 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 <boost/bind.hpp>
#endif
#include <Base/Console.h>
#include <Base/Placement.h>
#include <App/Application.h>
#include <App/Document.h>
#include <App/Origin.h>
#include <Mod/Part/App/DatumFeature.h>
#include <Mod/Part/App/PartFeature.h>
#include "Feature.h"
#include "FeatureSketchBased.h"
#include "FeatureTransformed.h"
#include "DatumPoint.h"
#include "DatumLine.h"
#include "DatumPlane.h"
#include "ShapeBinder.h"
#include "Body.h"
#include "BodyPy.h"
using namespace PartDesign;
PROPERTY_SOURCE(PartDesign::Body, Part::BodyBase)
Body::Body() {
ADD_PROPERTY_TYPE (Origin, (0), 0, App::Prop_Hidden, "Origin linked to the body" );
}
/*
// Note: The following code will catch Python Document::removeObject() modifications. If the object removed is
// a member of the Body::Model, then it will be automatically removed from the Model property which triggers the
// following two methods
// But since we require the Python user to call both Document::addObject() and Body::addFeature(), we should
// also require calling both Document::removeObject and Body::removeFeature() in order to be consistent
void Body::onBeforeChange(const App::Property *prop)
{
// Remember the feature before the current Tip. If the Tip is already at the first feature, remember the next feature
if (prop == &Model) {
std::vector<App::DocumentObject*> features = Model.getValues();
if (features.empty()) {
rememberTip = NULL;
} else {
std::vector<App::DocumentObject*>::iterator it = std::find(features.begin(), features.end(), Tip.getValue());
if (it == features.begin()) {
it++;
if (it == features.end())
rememberTip = NULL;
else
rememberTip = *it;
} else {
it--;
rememberTip = *it;
}
}
}
return Part::Feature::onBeforeChange(prop);
}
void Body::onChanged(const App::Property *prop)
{
if (prop == &Model) {
std::vector<App::DocumentObject*> features = Model.getValues();
if (features.empty()) {
Tip.setValue(NULL);
} else {
std::vector<App::DocumentObject*>::iterator it = std::find(features.begin(), features.end(), Tip.getValue());
if (it == features.end()) {
// Tip feature was deleted
Tip.setValue(rememberTip);
}
}
}
return Part::Feature::onChanged(prop);
}
*/
short Body::mustExecute() const
{
if ( Tip.isTouched() ||
BaseFeature.isTouched() ) {
return 1;
}
return Part::BodyBase::mustExecute();
}
App::DocumentObject* Body::getPrevFeature(App::DocumentObject *start) const
{
std::vector<App::DocumentObject*> features = Model.getValues();
if (features.empty()) return NULL;
App::DocumentObject* st = (start == NULL ? Tip.getValue() : start);
if (st == NULL)
return st; // Tip is NULL
std::vector<App::DocumentObject*>::iterator it = std::find(features.begin(), features.end(), st);
if (it == features.end()) return NULL; // Invalid start object
it--;
return *it;
}
App::DocumentObject* Body::getPrevSolidFeature(App::DocumentObject *start)
{
App::DocumentObject* baseFeature = BaseFeature.getValue();
if ( !start ) { // default to tip
start = Tip.getValue();
}
if ( !start ) { // No Tip
return nullptr;
} else if ( start == baseFeature ) { // The base feature always considered as the first solid
return nullptr;
}
assert ( hasFeature ( start ) );
const std::vector<App::DocumentObject*> & features = Model.getValues();
auto startIt = std::find ( features.rbegin(), features.rend(), start );
assert ( startIt != features.rend() );
auto rvIt = std::find_if ( startIt + 1, features.rend(), isSolidFeature );
if (rvIt != features.rend()) { // the solid found in model list
return *rvIt;
} else { // if solid is not present in the list the previous one is baseFeature
return baseFeature; // return it either it's set or nullptr
}
}
App::DocumentObject* Body::getNextSolidFeature(App::DocumentObject *start)
{
App::DocumentObject* baseFeature = BaseFeature.getValue();
if ( !start ) { // default to tip
start = Tip.getValue();
}
if ( !start ) { // no tip
return nullptr;
}
assert ( hasFeature ( start ) );
const std::vector<App::DocumentObject*> & features = Model.getValues();
std::vector<App::DocumentObject*>::const_iterator startIt;
if ( start == baseFeature ) {
// Handle the base feature, it's always considered to be solid
startIt = features.begin();
} else {
startIt = std::find ( features.begin(), features.end(), start );
assert ( startIt != features.end() );
startIt++;
}
if (startIt == features.end() ) { // features list is empty
return nullptr;
}
auto rvIt = std::find_if ( startIt, features.end(), isSolidFeature );
if (rvIt != features.end()) { // the solid found in model list
return *rvIt;
} else {
return nullptr;
}
}
bool Body::isAfterInsertPoint(App::DocumentObject* feature) {
App::DocumentObject *nextSolid = getNextSolidFeature ();
assert (feature);
if (feature == nextSolid) {
return true;
} else if (!nextSolid) { // the tip is last solid, we can't be plased after it
return false;
} else {
return isAfter ( feature, nextSolid );
}
}
bool Body::isMemberOfMultiTransform(const App::DocumentObject* f)
{
if (f == NULL)
return false;
// This can be recognized because the Originals property is empty (it is contained
// in the MultiTransform instead)
return (f->getTypeId().isDerivedFrom(PartDesign::Transformed::getClassTypeId()) &&
static_cast<const PartDesign::Transformed*>(f)->Originals.getValues().empty());
}
bool Body::isSolidFeature(const App::DocumentObject* f)
{
if (f == NULL)
return false;
if (f->getTypeId().isDerivedFrom(PartDesign::Feature::getClassTypeId())) {
// Transformed Features inside a MultiTransform are not solid features
return !isMemberOfMultiTransform(f);
}
return false;//DeepSOIC: work-in-progress?
}
bool Body::isAllowed(const App::DocumentObject* f)
{
if (f == NULL)
return false;
// TODO: Should we introduce a PartDesign::FeaturePython class? This should then also return true for isSolidFeature()
return (f->getTypeId().isDerivedFrom(PartDesign::Feature::getClassTypeId()) ||
f->getTypeId().isDerivedFrom(Part::Datum::getClassTypeId()) ||
// TODO Shouldn't we replace it with Sketcher::SketchObject? (2015-08-13, Fat-Zer)
f->getTypeId().isDerivedFrom(Part::Part2DObject::getClassTypeId()) ||
f->getTypeId().isDerivedFrom(PartDesign::ShapeBinder::getClassTypeId())
// TODO Why this lines was here? why should we allow anything of those? (2015-08-13, Fat-Zer)
//f->getTypeId().isDerivedFrom(Part::FeaturePython::getClassTypeId()) // trouble with this line on Windows!? Linker fails to find getClassTypeId() of the Part::FeaturePython...
//f->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId())
);
}
Body* Body::findBodyOf(const App::DocumentObject* feature)
{
return static_cast<Body*>(BodyBase::findBodyOf(feature));
}
void Body::addFeature(App::DocumentObject *feature)
{
insertFeature (feature, getNextSolidFeature (), /*after = */ false);
// Move the Tip if we added a solid
if (isSolidFeature(feature)) {
Tip.setValue (feature);
}
}
void Body::insertFeature(App::DocumentObject* feature, App::DocumentObject* target, bool after)
{
if (target) {
if (target == BaseFeature.getValue()) {
// Handle the insertion relative to the base feature in a special way
if (after) {
target = nullptr;
} else {
throw Base::Exception("Body: impossible to insert before the base object");
}
} else if (!hasFeature (target)) {
// Check if the target feature belongs to the body
throw Base::Exception("Body: the feature we should insert relative to is not part of that body");
}
}
std::vector<App::DocumentObject*> model = Model.getValues();
std::vector<App::DocumentObject*>::iterator insertInto;
// Find out the position there to insert the feature
if (!target) {
if (after) {
insertInto = model.begin();
} else {
insertInto = model.end();
}
} else {
std::vector<App::DocumentObject*>::iterator targetIt = std::find (model.begin(), model.end(), target);
assert (targetIt != model.end());
if (after) {
insertInto = targetIt + 1;
} else {
insertInto = targetIt;
}
}
// Insert the new feature after the given
model.insert (insertInto, feature);
Model.setValues (model);
// Set the BaseFeature property
if (Body::isSolidFeature(feature)) {
// Set BaseFeature property to previous feature (this might be the Tip feature)
App::DocumentObject* prevSolidFeature = getPrevSolidFeature(feature);
// NULL is ok here, it just means we made the current one fiature the base solid
static_cast<PartDesign::Feature*>(feature)->BaseFeature.setValue(prevSolidFeature);
// Reroute the next solid feature's BaseFeature property to this feature
App::DocumentObject* nextSolidFeature = getNextSolidFeature(feature);
if (nextSolidFeature) {
assert ( nextSolidFeature->isDerivedFrom ( PartDesign::Feature::getClassTypeId () ) );
static_cast<PartDesign::Feature*>(nextSolidFeature)->BaseFeature.setValue(feature);
}
}
}
void Body::removeFeature(App::DocumentObject* feature)
{
App::DocumentObject* nextSolidFeature = getNextSolidFeature(feature);
App::DocumentObject* prevSolidFeature = getPrevSolidFeature(feature);
// This method must be called BEFORE the feature is removed from the Document!
if (isSolidFeature(feature)) {
// This is a solid feature
// If the next feature is solid, reroute its BaseFeature property to the previous solid feature
if (nextSolidFeature) {
assert ( nextSolidFeature->isDerivedFrom ( PartDesign::Feature::getClassTypeId () ) );
// Note: It's ok to remove the first solid feature, that just mean the next feature become the base one
static_cast<PartDesign::Feature*>(nextSolidFeature)->BaseFeature.setValue(prevSolidFeature);
}
}
std::vector<App::DocumentObject*> model = Model.getValues();
std::vector<App::DocumentObject*>::iterator it = std::find(model.begin(), model.end(), feature);
// Adjust Tip feature if it is pointing to the deleted object
if (Tip.getValue()== feature) {
if (prevSolidFeature) {
Tip.setValue(prevSolidFeature);
} else {
Tip.setValue(nextSolidFeature);
}
}
// Erase feature from Model
model.erase(it);
Model.setValues(model);
}
App::DocumentObjectExecReturn *Body::execute(void)
{
/*
Base::Console().Error("Body '%s':\n", getNameInDocument());
App::DocumentObject* tip = Tip.getValue();
Base::Console().Error(" Tip: %s\n", (tip == NULL) ? "None" : tip->getNameInDocument());
std::vector<App::DocumentObject*> model = Model.getValues();
Base::Console().Error(" Model:\n");
for (std::vector<App::DocumentObject*>::const_iterator m = model.begin(); m != model.end(); m++) {
if (*m == NULL) continue;
Base::Console().Error(" %s", (*m)->getNameInDocument());
if (Body::isSolidFeature(*m)) {
App::DocumentObject* baseFeature = static_cast<PartDesign::Feature*>(*m)->BaseFeature.getValue();
Base::Console().Error(", Base: %s\n", baseFeature == NULL ? "None" : baseFeature->getNameInDocument());
} else {
Base::Console().Error("\n");
}
}
*/
App::DocumentObject* tip = Tip.getValue();
Part::TopoShape tipShape;
if ( tip ) {
if ( !tip->getTypeId().isDerivedFrom ( PartDesign::Feature::getClassTypeId() )
&& tip != BaseFeature.getValue () ) {
return new App::DocumentObjectExecReturn ( "Linked object is not a PartDesign feature" );
}
// get the shape of the tip
tipShape = static_cast<Part::Feature *>(tip)->Shape.getShape();
if ( tipShape.getShape().IsNull () ) {
return new App::DocumentObjectExecReturn ( "Tip shape is empty" );
}
// We should hide here the transformation of the baseFeature
tipShape.transformShape (tipShape.getTransform(), true );
} else {
tipShape = Part::TopoShape();
}
Shape.setValue ( tipShape );
return App::DocumentObject::StdReturn;
}
void Body::onSettingDocument() {
if(connection.connected())
connection.disconnect();
Part::BodyBase::onSettingDocument();
}
void Body::removeModelFromDocument() {
//delete all child objects if needed
std::set<DocumentObject*> grp ( Model.getValues().begin (), Model.getValues().end() );
for (auto obj : grp) {
this->getDocument()->remObject(obj->getNameInDocument());
}
}
void Body::onChanged (const App::Property* prop) {
if ( prop == &BaseFeature ) {
App::DocumentObject *baseFeature = BaseFeature.getValue();
App::DocumentObject *nextSolid = getNextSolidFeature ( baseFeature );
if ( nextSolid ) {
assert ( nextSolid->isDerivedFrom ( PartDesign::Feature::getClassTypeId () ) );
static_cast<PartDesign::Feature*>(nextSolid)->BaseFeature.setValue( baseFeature );
}
}
Part::BodyBase::onChanged ( prop );
}
App::Origin *Body::getOrigin () const {
App::DocumentObject *originObj = Origin.getValue ();
if ( !originObj ) {
std::stringstream err;
err << "Can't find Origin for \"" << getNameInDocument () << "\"";
throw Base::Exception ( err.str().c_str () );
} else if (! originObj->isDerivedFrom ( App::Origin::getClassTypeId() ) ) {
std::stringstream err;
err << "Bad object \"" << originObj->getNameInDocument () << "\"(" << originObj->getTypeId().getName()
<< ") linked to the Origin of \"" << getNameInDocument () << "\"";
throw Base::Exception ( err.str().c_str () );
} else {
return static_cast<App::Origin *> ( originObj );
}
}
void Body::setupObject () {
// NOTE: the code shared with App::OriginGroup
App::Document *doc = getDocument ();
std::string objName = std::string ( getNameInDocument() ).append ( "Origin" );
App::DocumentObject *originObj = doc->addObject ( "App::Origin", objName.c_str () );
assert ( originObj && originObj->isDerivedFrom ( App::Origin::getClassTypeId () ) );
Origin.setValue ( originObj );
Part::BodyBase::setupObject ();
}
void Body::unsetupObject () {
App::DocumentObject *origin = Origin.getValue ();
if (origin && !origin->isDeleting ()) {
origin->getDocument ()->remObject (origin->getNameInDocument());
}
Part::BodyBase::unsetupObject ();
}
PyObject *Body::getPyObject(void)
{
if (PythonObject.is(Py::_None())){
// ref counter is set to 1
PythonObject = Py::Object(new BodyPy(this),true);
}
return Py::new_reference_to(PythonObject);
}