[vtkusers] Drawing many lines in a 3D environment

[Mathieu Malaterre]

Bob,

  If your dataset is simply a set of line, then create a vtkPolyData
out of the lines, and then simply render it as any vtkPolyData (mapper
-> actor -> render).
  I would think that your highway is somewhat connected, if so then
use a vtkPolyLine, if this is not connected simlpy use vtkLine. In all
case you'll have to use vtkPolyData::InsertNextCell to create the
vtkPolyData.

HTH
-Mathieu

On Mon, Jun 30, 2008 at 11:25 PM, Bob Palank <bob at stlcc.org> wrote:
> So how would this change if I needed to draw 100 lines and I knew the 3D
> coordinates of each line?
> Bob
>
> -----Original Message-----
> From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf
> Of Shakes
> Sent: Monday, June 30, 2008 3:32 PM
> To: vtkusers at vtk.org
> Subject: Re: [vtkusers] Drawing lines in a 3D environment
>
> Hi Dmitri,
>
> Yes there is in my experience. Use the class vtkLineSource. It would
> look similar to:
>
> line = vtkLineSource::New();
> mapper = vtkPolyDataMapper::New();
> actor = vtkActor::New();
>
> line->SetPoint1(0,0,0);
> line->SetPoint2(0,2,0);
> line->Update();
>
> mapper->SetInput(line->GetOutput());
> mapper->Update();
>
> actor->SetMapper(mapper);
>
> Then ur usual vtk render stuff. Hope that helps.
>
> Cheers
> Shakes
>
> Dmitri Danewitz wrote:
>>
>> Hello!
>>
>>
>>
>> I´ve a 3D highway network (made of polygons) and would like to ask if
>> there is a possibility to draw lines (by x,y,z coordinates) in.
>>
>>
>>
>> Greets
>>
>> Dmitri
>>
>>
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-- 
Mathieu