void StaticMesh::init( MeshBufferPtr mesh )
{
size_t n_colors;
size_t n_normals;
m_lineWidth = 2.0;
if(mesh)
{
m_faceNormals = 0;
m_normals = mesh->getVertexNormalArray(n_normals);
m_colors = mesh->getVertexColorArray(n_colors);
m_vertices = mesh->getVertexArray(m_numVertices);
m_faces = mesh->getFaceArray(m_numFaces);
m_blackColors = new unsigned char[ 3 * m_numVertices ];
for ( size_t i = 0; i < 3 * m_numVertices; i++ )
{
m_blackColors[i] = 0;
}
m_finalized = true;
m_visible = true;
m_active = true;
m_renderMode = 0;
m_renderMode |= RenderSurfaces;
m_renderMode |= RenderTriangles;
m_boundingBox = new BoundingBox<Vertex<float> >;
if(!m_faceNormals)
{
interpolateNormals();
} else
{
// cout << "Face normals: " << m_faceNormals << endl;
}
if(!m_colors)
{
setDefaultColors();
}
if(n_colors == 0)
{
m_colors = ucharArr( new unsigned char[3 * m_numVertices] );
for( int i = 0; i < m_numVertices; ++i )
{
m_colors[3 * i] = 0;
m_colors[3 * i + 1] = 255;
m_colors[3 * i + 2] = 0;
}
}
}
}
void STLIO::save( ModelPtr model, string filename )
{
MeshBufferPtr mesh = model->m_mesh;
size_t n_vert;
size_t n_faces;
floatArr vertices = mesh->getVertexArray(n_vert);
uintArr indices = mesh->getFaceArray(n_faces);
std::string header_info = "Created by LVR";
char head[80];
std::strncpy(head,header_info.c_str(),sizeof(head)-1);
char attribute[2] = "0";
std::ofstream myfile(filename.c_str());
myfile.write(head,sizeof(head));
myfile.write((char*)&n_faces,4);
if(myfile.good())
{
for(int i = 0; i < n_faces; i++)
{
int a = (int)indices[3 * i];
int b = (int)indices[3 * i + 1];
int c = (int)indices[3 * i + 2];
Vertexf v1;
Vertexf v2;
Vertexf v3;
v1.x = vertices[3 * a];
v1.y = vertices[3 * a + 1];
v1.z = vertices[3 * a + 2];
v2.x = vertices[3 * b];
v2.y = vertices[3 * b + 1];
v2.z = vertices[3 * b + 2];
v3.x = vertices[3 * c];
v3.y = vertices[3 * c + 1];
v3.z = vertices[3 * c + 2];
Normalf normal( (v1 - v2).cross(v1 - v3));
myfile.write( (char*)&normal.x, 4);
myfile.write( (char*)&normal.y, 4);
myfile.write( (char*)&normal.z, 4);
myfile.write( (char*)&v1.x, 4);
myfile.write( (char*)&v1.y, 4);
myfile.write( (char*)&v1.z, 4);
myfile.write( (char*)&v2.x, 4);
myfile.write( (char*)&v2.y, 4);
myfile.write( (char*)&v2.z, 4);
myfile.write( (char*)&v3.x, 4);
myfile.write( (char*)&v3.y, 4);
myfile.write( (char*)&v3.z, 4);
uint16_t u = 0;
myfile.write( (char*)attribute, 2 );
}
}
else
{
cout << timestamp << "Could not open file " << filename << " for writing." << endl;
}
}