Did you do a SetDimensions(x,y,z) on your structured grid?<br><br><br><div><span class="gmail_quote">On 9/18/07, <b class="gmail_sendername">XViz</b> <<a href="mailto:D_E@ukr.net">D_E@ukr.net</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div style="font-size: 12pt; font-family: Tahoma;">
<div>Thank you vry much for answer. I constructed vtkStructuredGrid and
setted setpoints and getpointdata->setscalars().</div>
<div>But what to do NEXT??? I tried to put it into vtkContourFilter, but it
doesnt't work - it says I have a lot of points but no tuples!</div><span class="q">
<div> </div>
<div> </div>
<div>XViz, <a href="mailto:%3C%21--AID_FROMADDRESS_BEGIN--%3ED_E@ukr.net%3C%21--AID_FROMADDRESS_END--%3E" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">D_E@ukr.net</a></div></span>
<div>2007-09-18 </div>
<blockquote style="border-left: 2px solid rgb(0, 0, 0); padding-right: 0px; padding-left: 5px; margin-left: 5px; margin-right: 0px;">
<div style="font-weight: normal; font-size: 9pt; line-height: normal; font-style: normal; font-variant: normal;">-----
Получено следующее ----- </div>
<div style="background: rgb(228, 228, 228) none repeat scroll 0% 50%; font-weight: normal; font-size: 9pt; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial; line-height: normal; font-style: normal; font-variant: normal;">
<b>От:</b>
<a href="mailto:shriram.uc@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">Shriram Iyer</a> </div>
<div style="font-weight: normal; font-size: 9pt; line-height: normal; font-style: normal; font-variant: normal;"><b>Получатель:</b>
<a href="mailto:D_E@ukr.net" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">D_E</a> </div>
<div style="font-weight: normal; font-size: 9pt; line-height: normal; font-style: normal; font-variant: normal;"><b>Время:</b>
2007-09-18, 00:46:30</div>
<div style="font-weight: normal; font-size: 9pt; line-height: normal; font-style: normal; font-variant: normal;"><b>Тема:</b>
Re: [vtkusers] Drawing complex 3D surface.</div><div><span class="e" id="q_11517dd7010719f7_3">
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<div>Use vtkStructuredGrid and set the dimensions of the grid correctly using
vtkStructuredGrid->SetDimensions(x,y,z). <br>Then do setpoints and
getpointdata->setscalars()<br><br>-shriram<br><br>
<div><span class="gmail_quote">On 9/17/07, <b class="gmail_sendername">XViz</b>
<<a href="mailto:D_E@ukr.net" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">D_E@ukr.net</a>> wrote:</span>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hello
everyone,<br><br>I started to work with VTK because it is much faster and
powerfull than TeeChart8 I used before. But VTK is more complex, so I'll be
very thankful if somebody could advise me how to complete the task described
bellow. <br><br>I've got a task to build isosurfaces from images that
intersect ech other: the seccond plane is inclined on 5 degrees to the
first, the third to 5 degrees to the seccond and so on - for 360 degrees. So
I have cyinder fill with planes. All planes consist from rectangular grid of
float type points. I converted this data to unstructured points (actually I
can convert it to complex structured grid, but I don't see how could it help
me - I didn't mannage to visualisate even two separate cylinders). The
isosurface I need to visualizate will consist from many
connected/unconnected region. I tried many filters, look through both VTK
books and many examples, but I cannot plot it ! :( <br>With
vtkSurfaceReconstructionFilter it is something very strange and not right.
The only thing that workes is to manully set unstructured grid from points
with close intencity value and then put it to vtkGaussianSplatter ant plot
it like in finance.cxx example. But it is not real picture, because all
points are shrinked by vtkGaussianSplatter.<br>Here is the code I assume
should work to draw my data (unfortunatelly in doesn't - I don't know
why):<br><br>// Pl3D[i].x(,y,z,V) - is my point number i - x,y,z -
coordinates, V - values - all float type. This array I did manually
before.<br> vtkPoints *points =
vtkPoints::New();<br> vtkIntArray *newScalars =
vtkIntArray::New(); <br>// Then I fill arrays with point and scalars in the
loop incrising id for both arrays for each new point<br> int
po=0;<br> for (int i=0; i<NumFull; i++)<br>// If I want to set
manually intencity for single surface I put here: if (Pl3D[i].V>LowLevel
&& Pl3D[i].V<HighLevel) <br> {
points->InsertPoint(po,Pl3D[i].x,Pl3D[i].y,Pl3D[i].z);<br> newScalars->InsertValue(po,Pl3D[i].V);<br> po++;<br> };<br> vtkUnstructuredGrid
*PdataSet =
vtkUnstructuredGrid::New();<br> PdataSet->SetPoints(points);
<br> PdataSet->GetPointData()->SetScalars(newScalars);<br>//I
putted here different filters, but everithing (but vtkGaussianSplatter)
didn't work<br> vtkContourFilter *cf =
vtkContourFilter::New();<br> cf->SetInputConnection(someFilter->GetOutputPort());
<br>//I tried to change SetValue for GenerateValues, or to set all values in
newScalars=1 and
SetValue(0,1)<br> cf->SetValue(0,0.0);<br> vtkPolyDataMapper
*map =
vtkPolyDataMapper::New();<br> map->SetInputConnection(cf->GetOutputPort());
<br> vtkActor *popActor =
vtkActor::New();<br> popActor->SetMapper(map);<br><br><br>As
I wrote I tried to set all Scalar values for manyally selected iso-points to
1, or didn't set it. I tried to put my points to vtkPolyData->SetPoints()
and use some filters... <br><br>I'm trying to get this thing working for two
weeks already. :(<br>It will be very nice if somebody could help
me!<br>Thank you very much!<br><br><br>XViz, <a href="mailto:D_E@ukr.net" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">D_E@ukr.net</a><br>2007-09-17
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