[vtkusers] Questions to render seismic data by volume render method

[Hongsongyang]

1, Different data has different scale value. And you should set different
scale value for different opacty value.
2, In my understanding, ray casting could deal with all kinds of data no
matter they are unsigned char or unsigned short.
If you have any problem, you could share some of your test data, if it is
not confidential.
 



  _____  

From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf
Of 李菲菲
Sent: Wednesday, May 15, 2013 4:22 PM
To: vtkusers at vtk.org
Subject: [vtkusers] Questions to render seismic data by volume render method



I'm trying to render a 3D seismic data by volumetric ray casting. The data
is stored in binary, and the data type is float. I read in the data with the
class of vtkImageData2 and the dimension of the data is 100x100x201. There
are two questions: 

1 How to choose the points to set opacity and color ? 

2 As vtkVolumeRayCastMapper can only deal with unsigned char or unsigned
short , but the data read in is float. How to deal with this problem?

 

Many thanks,

Feifei Li @nscc-tj

 

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