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Added Grid function (to build range map meshes...)

This commit is contained in:
Paolo Cignoni 2006-01-22 17:10:15 +00:00
parent de85929aee
commit 02f1e55b83
1 changed files with 41 additions and 0 deletions
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41
vcg/complex/trimesh/create/platonic.h
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@ -24,6 +24,9 @@
History
$Log: not supported by cvs2svn $
Revision 1.5 2005/07/11 13:16:34 cignoni
small gcc-related compiling issues (typenames,ending cr, initialization order)
Revision 1.4 2005/07/01 11:17:06 cignoni
Added option of passing a base mesh to Sphere for spherifying it
@ -611,6 +614,44 @@ void Build( MeshType & in, const V & v, const F & f)
in.face.push_back(ft);
}
}
template <class MeshType>
void Grid(MeshType & in, int w, int h, float wl, float hl, float *data)
{
typedef typename MeshType::CoordType CoordType;
typedef typename MeshType::VertexPointer VertexPointer;
typedef typename MeshType::VertexIterator VertexIterator;
typedef typename MeshType::FaceIterator FaceIterator;
in.Clear();
Allocator<MeshType>::AddVertices(in,w*h);
Allocator<MeshType>::AddFaces(in,(w-1)*(h-1)*2);
for(int i=0;i<h;++i)
for(int j=0;j<w;++j)
in.vert[i*w+j].P()=CoordType ( i, j, data[i*w+j]);
// i+0,j+0 -- i+0,j+1
// | \ |
// | \ |
// | \ |
// | \ |
// i+1,j+0 -- i+1,j+1
//
for(int i=0;i<h-1;++i)
for(int j=0;j<w-1;++j)
{
in.face[2*(i*(w-1)+j)+0].V(0) = &(in.vert[(i+0)*w+j+0]);
in.face[2*(i*(w-1)+j)+0].V(1) = &(in.vert[(i+1)*w+j+1]);
in.face[2*(i*(w-1)+j)+0].V(2) = &(in.vert[(i+0)*w+j+1]);
in.face[2*(i*(w-1)+j)+1].V(0) = &(in.vert[(i+0)*w+j+0]);
in.face[2*(i*(w-1)+j)+1].V(1) = &(in.vert[(i+1)*w+j+0]);
in.face[2*(i*(w-1)+j)+1].V(2) = &(in.vert[(i+1)*w+j+1]);
}
}
//@}
} // End Namespace TriMesh