[vtkusers] [EXTERNAL] Re: Rendering a z=f( x, y) 3D surface.

[Meehan, Bernard]

This isn’t a Qt example, but it does show how to make a z = f(x, y) plot:
http://www.vtk.org/gitweb?p=VTK.git;a=blob;f=Examples/Modelling/Python/expCos.py


From: vtkusers <vtkusers-bounces at vtk.org<mailto:vtkusers-bounces at vtk.org>> on behalf of Stéphane ALBERT <otb.salbert at gmail.com<mailto:otb.salbert at gmail.com>>
Date: Wednesday, August 3, 2016 at 8:48 AM
To: "vtkusers at vtk.org<mailto:vtkusers at vtk.org>" <vtkusers at vtk.org<mailto:vtkusers at vtk.org>>
Subject: [EXTERNAL] Re: [vtkusers] Rendering a z=f( x, y) 3D surface.

Sorry, I mistyped something and the email has been sent.

I'm new to VTK and on the rush to develop mock-up rendering a z = f( x, y ) 3D surface using the VTK in a Qt main-window.

The goal of the mock-up is to test the load for large data such as, for example, 32000x32000 discretization of the x and y axes.

I made a QMainWidow using a QVTKWidget and displaying a sphere (taken from the Examples section).

I understood the general pipeline layout (similar to ITK) but I don't know which VTK classes I should use/derive to modelize my z = f( x, y ) function and render it.

Should I :

  *   derive from vtkPolyDataAlgorithm and implement a point generation algorithm ;
  *   fill in some vtkImageData ;
  *   implement some filter taking grid data ;
  *   other?

Basically, the user input the size (e.g. 32000), the software generates and render the data.

As an option, I would like to add some controls to dynamically increase/decrease the size parameter.

In a second step, we would like to test some adaptative rendering algorithms the fast render the large number of vertices. Does VTK provide such algorithms? How could I implement and insert one into the VTK pipeline ?

Best regards,

http://orfeo-toolbox.org

Stéphane ALBERT
Ingénieur d'études et développement
Business Unit E-SPACE & Geo Information, Département APPLICATIONS

CS Systèmes d'Information
Parc de la Grande Plaine - 5, Rue Brindejonc des Moulinais - BP 15872
31506 Toulouse Cedex 05 - France


2016-08-03 17:37 GMT+02:00 Stéphane ALBERT <otb.salbert at gmail.com<mailto:otb.salbert at gmail.com>>:
Hello,

I'm new to VTK and on the rush to develop mock-up rendering a z = f( x, y ) 3D surface using the VTK in a Qt main-window. I

http://orfeo-toolbox.org

Stéphane ALBERT
Ingénieur d'études et développement
Business Unit E-SPACE & Geo Information, Département APPLICATIONS

CS Systèmes d'Information
Parc de la Grande Plaine - 5, Rue Brindejonc des Moulinais - BP 15872
31506 Toulouse Cedex 05 - France


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