[vtkusers] connecting points in from vtkPoints

[Rakesh Patil]

 Well, thanks a lot for your help and support...I got the output what i wanted... Now a small modification required..Is there any class in VTK to redistribute points equally spaced..??The output which i get has points which are unequally spaced..But i want them to be equally spaced..Thanks Original message From:Bill Lorensen< bill.lorensen at gmail.com >Date: 02 Feb 10 02:14:28Subject:Re: [vtkusers] connecting points in from vtkPointsTo: Rakesh Patil This examplehttp://vtk.org/Wiki/VTK/Examples/ExtractPolyLinesFromPolyData#ExtractPolyLinesFromPolyData.cxxshows you how to extract the polylines from vtkCutter followed by vtkStripper.On Mon, Feb 1, 2010 at 1:29 PM, Bill Lorensenwrote:> You can get the number of lines with:>> yourPolyData>GetNumberOfLines();>> You can get the lines with something like:>> vtkIdType npts;> vtkIdType *indx;>> cells = yourPolyData>GetLines();>> for (cells>InitTraversal(); cells>GetNextCell(npts,indx); )> ....> indx is an index into the points.>> On Mon,
  Feb 1, 2010 at 12:16 PM, Rakesh Patilwrote:>>>>>> Hi.>>>> I guess vtkStripper produces vtkPolydata as its output.. so How can be the>> polyline extracted from vtkstripper?>> As u said, i'm using the points from stripper and producing polyline of my>> own..>>>> Thanks>>>>  Original message >> From:Bill Lorensen< bill.lorensen at gmail.com >>> Date: 01 Feb 10 19:19:48>> Subject: Re: [vtkusers] connecting points in from vtkPoints>> To: Rakesh Patil>>>> Are you using the polyline generated by the stripper or creating your>> own? You must use the one produced by the stripper.>>>>>> On Mon, Feb 1, 2010 at 4:14 AM, Rakesh Patil wrote:>>>>>> Yes it does changes ... I get the points.. But when i connect these points>>> using polyline, again i get a zigzag lines...>>>>>>  Original message >>> From:David Doria< daviddoria+vtk at gmail.com >>>> Date: 31 Jan 10 01:22:41>>> Su bject: Re: [vtkusers] connecting points in from vtkPoints>>> To: rakeshthp at in.com>>>>>> Thanks,>>>>>> David>>>>>>>>>>>
 > On Sat, Jan 30, 2010 at 12:25 PM, Rakesh Patil wrote:>>>> I need to store the points in an array.. but vtkStripper is not returning>>>> the points.. i tried implementing it as follows>>>>>>>> vtkStripper *sp = vtkStripper::New();>>>>>>>> sp>SetInputConnection( contFilter>GetOutputPort());>>>>>>>> vtkPoints *pt = sp>GetPoints();>>>>>>>> Here pt is not showing any values.. It is all empty..>>>>>>>>  Original message >>>> From:Bill Lorensen< bill.lorensen at gmail.com >>>>> Date: 3 0 Jan 10 18:44:20>>>> Subject: Re: [vtkusers] connecting points in from vtkPoints>>>> To: Rakesh Patil>>>>>>>> Use vtkStripper to order the line segments output from vtkContourFilter.>>>>>>>> On Fri, Jan 29, 2010 at 5:30 AM, Rakesh Patil wrote:>>>>> Hello,>>>>>>>>>> I have a scatter data, (xyz file), where x and y are long, and lat resp>>>>> and>>>>> z is depth. I need to extract a zero contour from this xyz data. I use>>>>> vtkContourFilter to extract the points for zero contour.>>>>>>>>>> I get the 
 points what i require correctly.. But if i connect them>>>>> serially,>>>>> it shows that points are connected in a zigzag form. I get points>>>>> directly>>>>> from contuorfilter. i.e.>>>>>>>>>> vtkPoints *pts = contFilter>GetOutput()>GetPoints();>>>>>>>>>> What and how do i do, so that when i connect the points, i get a decent>>>> > connected line, instead of zig zag ..?>>>>>>>>>> Thanks>>>>>>>>>> Regards>>>>>>>>>>>>>>> Dear vtkusers ! Get Yourself a cool, short @in.com Email ID now!>>>>> >>>>> Powered by www.kitware.com>>>>>>>>>> Visit other Kitware opensource projects at>>>>> http://www.kitware.com/opensource/opensource.html>>>>>>>>>> Please keep messages ontopic and check the VTK FAQ at:>>>>> http://www.vtk.org/Wiki/VTKFAQ>>>>>>>>>> Follow this link to subscribe/unsubscribe:>>>>> http://www. vtk.org/mailman/listinfo/vtkusers>>>>>>> > ;>>>>>>>>>> >>>> Powered by www.kitware.com>>>>>>>> Visit other Kitware opensource projects at>>>> http://www.kitware.com/opensource/opens
 ource.html>>>>>>>> Please keep messages ontopic and check the VTK FAQ at:>>>> http://www.vtk.org/Wiki/VTKFAQ>>>>>>>> Follow this link to subscribe/unsubscribe:>>>> http://www.vtk.org/mailman/listinfo/vtkusers>>>>>>>>>>>>>> Try updating the stripper:>>>>>> vtkSmartPointer stripper =>>> vtkSmartPointer::New();>>> st ripper>SetInputConnectio n( contFilter>GetOutputPort());>>> stripper>Update();>>> vtkPoints *pt = stripper>GetPoints();>>>>>> Does that change anything?>>>>>> Dave>>> >>> Powered by www.kitware.com>>>>>> Visit other Kitware opensource projects at>>> http://www.kitware.com/opensource/opensource.html>>>>>> Please keep messages ontopic and check the VTK FAQ at:>>> http://www.vtk.org/Wiki/VTKFAQ>>>>>> Follow this link to subscribe/unsubscribe:>>> http://www.vtk.org/mailman/listinfo/vtkusers>>>>>>>>> Get Yourself a cool, short @in.com Email I D now!>>> >>> Powered by www.kitware.com>>>>>> Visit other Kitware opensource projects at>>> http://www.kitware.com/opensource/op
 ensource.html>>>>>> Please keep messages ontopic and check the VTK FAQ at:>>> http://www.vtk.org/Wiki/VTKFAQ>>>>>> Follow this link to subscribe/unsubscribe:>>> http://www.vtk.org/mailman/listinfo/vtkusers>>>>>>>>> 
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