Hide menu
exploring/layers/main.cxx

Refer to the Layers Example.

// ****************************************************************************
// $Id$
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2021, CADEX. All rights reserved.
//
// This file is part of the CAD Exchanger software.
//
// You may use this file under the terms of the BSD license as follows:
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// ****************************************************************************
#include <cadex/Base_String.hxx>
#include <cadex/LicenseManager_Activate.h>
#include <cadex/ModelData_Assembly.hxx>
#include <cadex/ModelData_Body.hxx>
#include <cadex/ModelData_BodyList.hxx>
#include <cadex/ModelData_BRepRepresentation.hxx>
#include <cadex/ModelData_Instance.hxx>
#include <cadex/ModelData_Layer.hxx>
#include <cadex/ModelData_ModelReader.hxx>
#include <cadex/ModelData_Part.hxx>
#include <iostream>
#include "../../cadex_license.cxx"
using namespace std;
using namespace cadex;
// Visitor checks elements of specific layer
class LayerItemVisitor : public ModelData_Layer::ItemVisitor
{
public:
LayerItemVisitor() : myPartsNb(0), myAssembliesNb(0), myInstancesNb(0), myShapesNb(0)
{
}
void GetElementsCount()
{
cout << "Number of parts: " << myPartsNb << endl;
cout << "Number of assemblies: " << myAssembliesNb << endl;
cout << "Number of instances: " << myInstancesNb << endl;
cout << "Number of shapes: " << myShapesNb << endl;
}
protected:
void operator() (const ModelData_SceneGraphElement& theSGE) override
{
if (theSGE.IsOfType<ModelData_Part>()) {
++myPartsNb;
} else if (theSGE.IsOfType<ModelData_Assembly>()) {
++myAssembliesNb;
} else if (theSGE.IsOfType<ModelData_Instance>()) {
++myInstancesNb;
}
}
void operator() (const ModelData_Shape& /*theShape*/, const ModelData_BRepRepresentation& /*theBRep*/) override
{
++myShapesNb;
}
private:
size_t myPartsNb;
size_t myAssembliesNb;
size_t myInstancesNb;
size_t myShapesNb;
};
// Visitor to explore model layers
class LayersVisitor : public ModelData_Model::LayerVisitor
{
protected:
void operator() (const ModelData_Layer& theLayer) override
{
LayerItemVisitor aLayerItemVisitor;
theLayer.Accept (aLayerItemVisitor);
cout << "Layer " << theLayer.Name() << " contains:" << endl;
aLayerItemVisitor.GetElementsCount();
}
};
// Visitor used to add model's parts to layer
class LayersFiller : public ModelData_Model::CombinedElementVisitor
{
public:
LayersFiller() : mySubshapesLayer ("SubshapesLayer"), mySGELayer ("SGELayer") // another layers
{
}
const ModelData_Layer& SGELayer()
{
return mySGELayer;
}
const ModelData_Layer& SubshapesLayer()
{
return mySubshapesLayer;
}
protected:
void operator() (const ModelData_Part& thePart) override
{
mySGELayer.Add (thePart);
if (aBRep) {
ModelData_BodyList aBodyList = aBRep.Get();
for (ModelData_BodyList::SizeType i = 0; i < aBodyList.Size(); ++i) {
const ModelData_Body& aBody = aBodyList[i];
aBRep.AddToLayer (aBody, mySubshapesLayer);
}
}
}
bool VisitEnter (const ModelData_SceneGraphElement& theElement) override
{
mySGELayer.Add (theElement);
return true;
}
private:
ModelData_Layer mySubshapesLayer;
ModelData_Layer mySGELayer;
};
int main (int argc, char *argv[])
{
auto aKey = LicenseKey::Value();
// Activate the license (aKey must be defined in cadex_license.cxx)
if (!CADExLicense_Activate (aKey)) {
cerr << "Failed to activate CAD Exchanger license." << endl;
return 1;
}
// Get the input
if (argc != 2) {
cerr << "Usage: " << argv[0] << " <input_file>, where:" << endl;
cerr << " <input_file> is a name of the XML file to be read" << endl;
return 1;
}
const char* aSource = argv[1];
if (!ModelData_ModelReader().Read (aSource, aModel)) {
cerr << "Failed to read the file " << aSource << endl;
return 1;
}
// Check the model if it has any layer
ModelData_Model::LayerIterator aLayerIt (aModel);
if (!aLayerIt.HasNext()) {
// Create a visitor to fill its layers
LayersFiller aVisitor;
aModel.Accept (aVisitor);
// Add created layers to the model
aModel.AddLayer (aVisitor.SGELayer());
aModel.AddLayer (aVisitor.SubshapesLayer());
}
LayersVisitor aLayerVisitor;
aModel.Accept (aLayerVisitor);
return 0;
}
Base_UTF16String Name() const
Definition: ModelData_BaseObject.cxx:210
Base class for part, instance and assembly.
Definition: ModelData_SceneGraphElement.hxx:36
Defines a root topological shape that can be owned by B-Rep representation.
Definition: ModelData_Body.hxx:27
const ModelData_BodyList & Get() const
Returns an associated topological object.
Definition: ModelData_BRepRepresentation.cxx:600
Defines a visitor of the layer elements.
Definition: ModelData_Layer.hxx:56
Provides a layer of objects.
Definition: ModelData_Layer.hxx:33
Provides CAD Exchanger data model.
Definition: ModelData_Model.hxx:40
void Accept(ItemVisitor &theVisitor) const
Accepts the element visitor.
Definition: ModelData_Layer.cxx:280
bool IsOfType() const
Returns true if the object has a type T.
Definition: ModelData_BaseObject.hxx:57
Defines a visitor of the layers.
Definition: ModelData_Model.hxx:157
Reads any format that CAD Exchanger can import.
Definition: ModelData_ModelReader.hxx:31
Defines an occurrence of assembly or part in a scene graph.
Definition: ModelData_Instance.hxx:32
Defines a list of bodies.
Definition: ModelData_BodyList.hxx:30
Defines a group of scene graph element.
Definition: ModelData_Assembly.hxx:32
Defines classes, types, and global functions related to CAD Exchanger.
Definition: A3DSTestLib.hxx:22
void Accept(ElementVisitor &theVisitor) const
Accepts a visitor.
Definition: ModelData_Model.cxx:535
Defines classes, types, and global functions related to standard C++ library.
Provides combined methods VisitEnter() and VisitLeave() to visit all elements.
Definition: ModelData_Model.hxx:116
Base class of topological shapes.
Definition: ModelData_Shape.hxx:36
void AddToLayer(const ModelData_Shape &theSubshape, const ModelData_Layer &theLayer)
Adds subshape to layer.
Definition: ModelData_BRepRepresentation.cxx:771
ModelData_BRepRepresentation BRepRepresentation() const
Definition: ModelData_Part.cxx:343
Defines a leaf node in the scene graph hiearchy.
Definition: ModelData_Part.hxx:34
void Add(const ModelData_SceneGraphElement &theElement)
Adds element to the layer.
Definition: ModelData_Layer.cxx:244
Defines precise Boundary Representation of part.
Definition: ModelData_BRepRepresentation.hxx:38