ID2D1Geometry::Tessellate methods

Creates a set of clockwise-wound triangles that cover the geometry after it has been transformed using the specified matrix and flattened using the specified tolerance.

Overload list

MethodDescription
Tessellate(D2D1_MATRIX_3X2_F*,ID2D1TessellationSink*)

Creates a set of clockwise-wound triangles that cover the geometry after it has been transformed using the specified matrix and flattened using the default tolerance.

Tessellate(D2D1_MATRIX_3X2_F&,ID2D1TessellationSink*)

Creates a set of clockwise-wound triangles that cover the geometry after it has been transformed using the specified matrix and flattened using the default tolerance.

Tessellate(D2D1_MATRIX_3X2_F*,FLOAT,ID2D1TessellationSink*)

Creates a set of clockwise-wound triangles that cover the geometry after it has been transformed using the specified matrix and flattened using the specified tolerance.

Tessellate(D2D1_MATRIX_3X2_F&,FLOAT,ID2D1TessellationSink*)

Creates a set of clockwise-wound triangles that cover the geometry after it has been transformed using the specified matrix and flattened using the specified tolerance.

Examples

The following code example shows how to use Tessellate to create a set of clockwise-wound triangles that cover the geometry.


 ID2D1GeometrySink *pGeometrySink = NULL;
 hr = pPathGeometry->Open(&pGeometrySink);
 if (SUCCEEDED(hr))
 {
     hr = pGeometry->Widen(
             strokeWidth,
             pIStrokeStyle,
             pWorldTransform,
             pGeometrySink
             );

     if (SUCCEEDED(hr))
     {
         hr = pGeometrySink->Close();
         if (SUCCEEDED(hr))
         {
             ID2D1Mesh *pMesh = NULL;
             hr = m_pRT->CreateMesh(&pMesh);
             if (SUCCEEDED(hr))
             {
                 ID2D1TessellationSink *pSink = NULL;
                 hr = pMesh->Open(&pSink);
                 if (SUCCEEDED(hr))
                 {
                     hr = pPathGeometry->Tessellate(
                             NULL, // world transform (already handled in Widen)
                             pSink
                             );
                     if (SUCCEEDED(hr))
                     {
                         hr = pSink->Close();
                         if (SUCCEEDED(hr))
                         {
                             SafeReplace(&m_pStrokeMesh, pMesh);
                         }
                     }
                     pSink->Release();
                 }
                 pMesh->Release();
             }
         }
     }
     pGeometrySink->Release();
 }
 pPathGeometry->Release();


For the complete example, see the Geometry Realization Sample.

Requirements

Library

D2d1.lib

DLL

D2d1.dll

See also

ID2D1Geometry

 

 

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