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include/cinder/TriMesh.h

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00001 /*
00002  Copyright (c) 2010, The Barbarian Group
00003  All rights reserved.
00004 
00005  Redistribution and use in source and binary forms, with or without modification, are permitted provided that
00006  the following conditions are met:
00007 
00008     * Redistributions of source code must retain the above copyright notice, this list of conditions and
00009     the following disclaimer.
00010     * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
00011     the following disclaimer in the documentation and/or other materials provided with the distribution.
00012 
00013  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
00014  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
00015  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
00016  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00017  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00018  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00019  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00020  POSSIBILITY OF SUCH DAMAGE.
00021 */
00022 
00023 #pragma once
00024 
00025 #include <vector>
00026 #include "cinder/Vector.h"
00027 #include "cinder/AxisAlignedBox.h"
00028 #include "cinder/Stream.h"
00029 
00030 namespace cinder {
00031 
00032 class TriMesh {
00033  public:
00034 
00035     void        clear();
00036     
00037     bool        hasNormals() const { return ! mNormals.empty(); }
00038     bool        hasTexCoords() const { return ! mTexCoords.empty(); }
00039 
00040     void        appendVertex( const Vec3f &v ) { mVertices.push_back( v ); }
00041     void        appendVertices( const Vec4d *verts, size_t num );
00042     void        appendNormal( const Vec3f &v ) { mNormals.push_back( v ); }
00043     void        appendNormals( const Vec4d *normals, size_t num );
00044     void        appendTexCoord( const Vec2f &v ) { mTexCoords.push_back( v ); }
00045     void        appendTriangle( size_t v0, size_t v1, size_t v2 )
00046     { mIndices.push_back( v0 ); mIndices.push_back( v1 ); mIndices.push_back( v2 ); }
00047 
00048     size_t      getNumIndices() const { return mIndices.size(); }
00049     size_t      getNumTriangles() const { return mIndices.size() / 3; }
00050     size_t      getNumVertices() const { return mVertices.size(); }
00051 
00052     const std::vector<Vec3f>&   getVertices() const { return mVertices; }
00053     const std::vector<Vec3f>&   getNormals() const { return mNormals; }
00054     const std::vector<Vec2f>&   getTexCoords() const { return mTexCoords; } 
00055     const std::vector<size_t>&      getIndices() const { return mIndices; }     
00056 
00057     AxisAlignedBox3f    calcBoundingBox() const;
00058 
00059     void        read( IStream *in );
00060     void        write( OStream *out ) const;
00061     
00062  private:
00063     std::vector<Vec3f>      mVertices;
00064     std::vector<Vec3f>      mNormals;
00065     std::vector<Vec2f>      mTexCoords;
00066     std::vector<size_t>     mIndices;
00067 };
00068 
00069 } // namespace cinder