Hide menu
Loading...
Searching...
No Matches
meshing/lods/lods.java

Refer to the Level of Details (LOD's) Example.

// ****************************************************************************
// $Id$
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2023, 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.
//
// ****************************************************************************
import cadex.*;
public class lods {
static {
try {
System.loadLibrary("CadExCore");
} catch (UnsatisfiedLinkError e) {
System.err.println("Native code library failed to load.\n" + e);
System.exit(1);
}
}
public static void main(String[] args) {
String aKey = LicenseKey.Value();
// Activate the license (aKey must be defined in LicenseKey.java)
if (!LicenseManager.Activate(aKey)) {
System.out.println("Failed to activate CAD Exchanger license.");
System.exit(1);
}
ModelData_BRepRepresentation aBRep = CreateSphereBRep(new ModelData_Point(0., 0., 0.), 10.);
ModelData_Part aPart = new ModelData_Part(aBRep, new Base_UTF16String("Sphere"));
AddPolyToPart(aPart, ModelAlgo_BRepMesherParameters.Granularity.Coarse);
AddPolyToPart(aPart, ModelAlgo_BRepMesherParameters.Granularity.Medium);
AddPolyToPart(aPart, ModelAlgo_BRepMesherParameters.Granularity.Fine);
ModelData_Model aModel = new ModelData_Model();
aModel.AddRoot(aPart);
if (!new ModelData_ModelWriter().Write(aModel, new Base_UTF16String("LODs.cdx"))) {
System.out.println("Failed to write the file.");
System.exit(1);
}
}
static int NumberOfTriangles(ModelData_PolyRepresentation thePoly) {
int trianglesNb = 0;
ModelData_PolyShapeList aList = thePoly.Get();
for (int i = 0; i < aList.Size(); ++i) {
ModelData_PolyVertexSet aPVS = aList.Access(i);
if (aPVS.TypeId() == ModelData_IndexedTriangleSet.GetTypeId()) {
ModelData_IndexedTriangleSet anITS = ModelData_IndexedTriangleSet.Cast(aPVS);
trianglesNb += anITS.NumberOfFaces();
}
}
return trianglesNb;
}
static ModelData_BRepRepresentation CreateSphereBRep(ModelData_Point thePosition, double theRadius) {
ModelData_Solid aSphere = ModelAlgo_TopoPrimitives.CreateSphere(thePosition, theRadius);
ModelData_Body aBody = ModelData_Body.Create(aSphere);
ModelData_BRepRepresentation aBRep = new ModelData_BRepRepresentation(aBody);
return aBRep;
}
static void AddPolyToPart(ModelData_Part thePart, ModelAlgo_BRepMesherParameters.Granularity theLOD) {
ModelData_BRepRepresentation aBRep = thePart.BRepRepresentation();
ModelAlgo_BRepMesherParameters aParam = new ModelAlgo_BRepMesherParameters(theLOD);
ModelAlgo_BRepMesher aMesher = new ModelAlgo_BRepMesher(aParam);
ModelData_PolyRepresentation aPoly = aMesher.Compute(aBRep);
thePart.AddRepresentation(aPoly);
System.out.println("A polygonal representation with " + NumberOfTriangles(aPoly) + " triangles has been added.");
}
}
Defines classes, types, and global functions related to CAD Exchanger.
Definition: A3DSTestLib.hxx:22