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<DIV><div class=WordSection1><p class=MsoNormal>Hi all,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>I am currently using vtkImageCanvasSource2D (VTK 5.8.0 – Visual Studio 10 – Windows). However, I’ve noticed that the “DrawImage” method of this class does not take into account the DefaultZ (see code below from vtkImageCanvasSource2D.cxx):<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>// int z = this->DefaultZ;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>…..<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>// if (this->Ratio[2] != 1.0)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>// {<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>// z = int(double(z) * this->Ratio[2]);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>// }<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>….<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>//z = (z < extent[4]) ? extent[4] : z;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>//z = (z > extent[5]) ? extent[5] : z;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>….<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>//z = (z < extent[4]) ? extent[4] : z;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>//z = (z > extent[5]) ? extent[5] : z;<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>….<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:9.5pt;font-family:Consolas;color:blue'>void</span><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'> *ptr;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:9.5pt;font-family:Consolas;color:blue'>void</span><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'> *sptr;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>ptr = <span style='color:blue'>this</span>->ImageData->GetScalarPointer(min0, min1, 0);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>sptr = ic->GetOutput()->GetScalarPointer(ext[0], ext[2], 0);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>….<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>It seems that using this method only draws an image at z=0 in the canvas.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Moreover, for all other methods (FillBox, DrawPixel, DrawCircle …), the DefaultZ is taken into account and the pointers are correctly initialized:<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:9.5pt;font-family:Consolas;color:blue'>int</span><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'> z = <span style='color:blue'>this</span>->DefaultZ;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:9.5pt;font-family:Consolas;color:blue'>void</span><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'> *ptr;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:9.5pt;font-family:Consolas'>ptr = <span style='color:blue'>this</span>->ImageData->GetScalarPointer(min0, min1, z);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I may have missed something.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Any help or alternative will be appreciated.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Thank you.<o:p></o:p></span></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal>Bouba<o:p></o:p></p></div></DIV>
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