<div dir="ltr"><div><div>Sorry Cory, I was mistaken and way too quick in replying. When I wrote the last mail I was still observing the output from the six combined vtkStructuredGridGeometryFilter's. Now I have tried one single filter without providing any SetExtent call and the result I have is the visualization of the StructuredGrid's points. No Boundary. How can I instruct the filter to generate the Boundaries?<br><br></div>Thank you<br><br></div> Luca<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Aug 10, 2016 at 2:44 PM, Luca Pallozzi Lavorante <span dir="ltr"><<a href="mailto:lplavorante@gmail.com" target="_blank">lplavorante@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div>Hi Cory, thank you for your reply.<br><br></div>You are absolutely right! I have followed your adviced and removed the SetExtent() call to vtkStructuredGridGeometryFIlte<wbr>r (I had previously used six of them to get the all the boundaries and then merged them with vtkAppendPolyData) and I have magically obtained the complete boundary as output with a single filter.<br></div>It worked really fine.<br></div>Thank you for your kind help!<br><br></div><div>Best regards,<br></div><div><br></div> Luca<div><div class="h5"><br><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Aug 10, 2016 at 2:07 PM, Cory Quammen <span dir="ltr"><<a href="mailto:cory.quammen@kitware.com" target="_blank">cory.quammen@kitware.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Luca,<div><br></div><div>You are on the right track. <span style="font-size:12.8px">vtkStructuredGridGeomet<wbr>ryFilte</span><span style="font-size:12.8px">r should extract just one polydata defining all the boundaries of your structured grid. In the end, your pipeline should look like</span></div><div><span style="font-size:12.8px"><br></span></div><div><span style="font-size:12.8px">vtkStructuredGrid -> </span><span style="font-size:12.8px">vtkStructuredGridGeometryFi<wbr>lte</span><span style="font-size:12.8px">r -> </span><span style="font-size:12.8px">vtkPolyDataNormals -> </span><span style="font-size:12.8px">vtkDataSetMapper -> vtkActor</span></div><div><span style="font-size:12.8px"><br></span></div><div><span style="font-size:12.8px">HTH,</span></div><div><span style="font-size:12.8px">Cory</span></div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div>On Wed, Aug 10, 2016 at 12:08 PM, Luca Pallozzi Lavorante <span dir="ltr"><<a href="mailto:lplavorante@gmail.com" target="_blank">lplavorante@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="ltr"><div><div><div><div><div>Hi everybody,<br></div>Is there any way to visualize a StructuredGrid's boundary with Gouraud shading?<br></div>When I use a very simple pipeline vtkStructuredGrid -> vtkDataSetMapper -> vtkActor I am able to visualize the closed boundary of the grid. The polygons used in the rendering are triangles with a flat shading look. <br>If I wish to apply a Gouraud shading to this boundary, should I extract this closed surface as a vtkPolyData and then use vtkPolyDataNormals on it?<br></div>If this is the case, How can I extract the boundary? Should I use vtkStructuredGridGeometryFilte<wbr>r to obtain six separate polydata's defining the boundary and then append them using vtkAppendPolyData?<br></div><br>Thank you very much for your help<span><font color="#888888"><br><br></font></span></div><span><font color="#888888">Luca Pallozzi Lavorante<br></font></span></div>
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