Cinder

  • About
  • Features
  • Gallery
  • Reference
  • Forum
  • Blog
  • Download
  • Main Page
  • Related Pages
  • Namespaces
  • Classes
  • Files
  • Examples
  • File List
  • File Members

include/cinder/TriMesh.h

Go to the documentation of this file.
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/DataSource.h"
00029 #include "cinder/DataTarget.h"
00030 #include "cinder/Matrix.h"
00031 #include "cinder/Color.h"
00032 #include "cinder/Rect.h"
00033 
00034 namespace cinder {
00035     
00066 class TriMesh {
00067  public:
00068     
00069     void        clear();
00070     
00071     bool        hasNormals() const { return ! mNormals.empty(); }
00072     bool        hasColorsRGB() const { return ! mColorsRGB.empty(); }
00073     bool        hasColorsRGBA() const { return ! mColorsRGBA.empty(); }
00074     bool        hasTexCoords() const { return ! mTexCoords.empty(); }
00075 
00077     void        appendVertex( const Vec3f &v ) { mVertices.push_back( v ); }
00079     void        appendVertices( const Vec4d *verts, size_t num );
00081     void        appendNormal( const Vec3f &v ) { mNormals.push_back( v ); }
00083     void        appendNormals( const Vec4d *normals, size_t num );
00085     void        appendColorRGB( const Color &rgb ) { mColorsRGB.push_back( rgb ); }
00087     void        appendColorRGBA( const ColorA &rgba ) { mColorsRGBA.push_back( rgba ); }
00089     void        appendTexCoord( const Vec2f &v ) { mTexCoords.push_back( v ); }
00090     
00094     void        appendTriangle( size_t v0, size_t v1, size_t v2 )
00095     { mIndices.push_back( v0 ); mIndices.push_back( v1 ); mIndices.push_back( v2 ); }
00097     void        appendIndices( uint32_t *indices, size_t num );
00098 
00100     size_t      getNumIndices() const { return mIndices.size(); }
00102     size_t      getNumTriangles() const { return mIndices.size() / 3; }
00104     size_t      getNumVertices() const { return mVertices.size(); }
00105 
00107     void        getTriangleVertices( size_t idx, Vec3f *a, Vec3f *b, Vec3f *c ) const;
00108 
00110     std::vector<Vec3f>&             getVertices() { return mVertices; }
00112     const std::vector<Vec3f>&       getVertices() const { return mVertices; }
00114     std::vector<Vec3f>&             getNormals() { return mNormals; }
00116     const std::vector<Vec3f>&       getNormals() const { return mNormals; }
00118     std::vector<Color>&             getColorsRGB() { return mColorsRGB; }
00120     const std::vector<Color>&       getColorsRGB() const { return mColorsRGB; }
00122     std::vector<ColorA>&            getColorsRGBA() { return mColorsRGBA; }
00124     const std::vector<ColorA>&      getColorsRGBA() const { return mColorsRGBA; }
00126     std::vector<Vec2f>&             getTexCoords() { return mTexCoords; }   
00128     const std::vector<Vec2f>&       getTexCoords() const { return mTexCoords; } 
00130     std::vector<uint32_t>&          getIndices() { return mIndices; }       
00132     const std::vector<uint32_t>&    getIndices() const { return mIndices; }     
00133 
00135     AxisAlignedBox3f    calcBoundingBox() const;
00137     AxisAlignedBox3f    calcBoundingBox( const Matrix44f &transform ) const;
00138 
00140     void        read( DataSourceRef in );
00142     void        write( DataTargetRef out ) const;
00143     
00144  private:
00145     std::vector<Vec3f>      mVertices;
00146     std::vector<Vec3f>      mNormals;
00147     std::vector<Color>      mColorsRGB;
00148     std::vector<ColorA>     mColorsRGBA;
00149     std::vector<Vec2f>      mTexCoords;
00150     std::vector<uint32_t>   mIndices;
00151 };
00152 
00153 class TriMesh2d {
00154  public:
00155     void        clear();
00156     
00157     bool        hasColorsRgb() const { return ! mColorsRgb.empty(); }
00158     bool        hasColorsRgba() const { return ! mColorsRgba.empty(); }
00159     bool        hasTexCoords() const { return ! mTexCoords.empty(); }
00160 
00162     void        appendVertex( const Vec2f &v ) { mVertices.push_back( v ); }
00164     void        appendVertices( const Vec2f *verts, size_t num );
00166     void        appendColorRgb( const Color &rgb ) { mColorsRgb.push_back( rgb ); }
00168     void        appendColorRgba( const ColorA &rgba ) { mColorsRgba.push_back( rgba ); }
00170     void        appendTexCoord( const Vec2f &v ) { mTexCoords.push_back( v ); }
00171     
00175     void        appendTriangle( size_t v0, size_t v1, size_t v2 )
00176     { mIndices.push_back( v0 ); mIndices.push_back( v1 ); mIndices.push_back( v2 ); }
00178     void        appendIndices( uint32_t *indices, size_t num );
00179     
00181     size_t      getNumIndices() const { return mIndices.size(); }
00183     size_t      getNumTriangles() const { return mIndices.size() / 3; }
00185     size_t      getNumVertices() const { return mVertices.size(); }
00186 
00188     void        getTriangleVertices( size_t idx, Vec2f *a, Vec2f *b, Vec2f *c ) const;
00189 
00191     const std::vector<Vec2f>&       getVertices() const { return mVertices; }
00193     const std::vector<Color>&       getColorsRGB() const { return mColorsRgb; }
00195     const std::vector<ColorA>&      getColorsRGBA() const { return mColorsRgba; }
00197     const std::vector<Vec2f>&       getTexCoords() const { return mTexCoords; } 
00199     const std::vector<size_t>&      getIndices() const { return mIndices; }     
00200 
00202     Rectf   calcBoundingBox() const;
00203 
00204  private:
00205     std::vector<Vec2f>      mVertices;
00206     std::vector<Color>      mColorsRgb;
00207     std::vector<ColorA>     mColorsRgba;
00208     std::vector<Vec2f>      mTexCoords;
00209     std::vector<size_t>     mIndices;
00210 };
00211 
00212 } // namespace cinder