<pre><font size="4">Hi All,<br><br><br>I am new to VTK, and would need some help from any experienced user out there. <br>I am trying to figure out if the toolkit can help me with the following visualization problem: <br> * <br>
<br> Visualize N scalar fields defined over a structured Cartesian grid (e.g. pressure, temperature, density, etc.) <br> by means of a multi-dimensional transfer function. <br> *<br>I am trying to use the vtkMapper to use array data defined at each point in the Cartesian grid. Each array would <br>
<br>then be of length N (the number of scalar fields). I see I can only select one of these N fields to be used for coloring<br>via the SelectColorArray(). Is this correct?<br><br>Also, this value will be passed to an internal (to vtkMapper) LookupTable, which converts data values to colors.<br>
<br><br>One way that I see in which one could map multi-component data to colors is by an appropriate call to SetVectorMode in<br>vtkScalarsToColors. Can anyone explain how I could use this mechanism in the context of visualizing N data fields and a <br>
<br>multi-dimensional transfer function?<br><i><br><br></i>I would greatly appreciate any comments that could point me to solving this problem. <br><br><i>Best regards,<br>Adrian<br></i></font></pre><font color="#888888"><br clear="all">
</font><br clear="all"><br>-- <br>---------------------------------------------------<br>Adrian Albert<br>School of Engineering and Science<br>Jacobs University Bremen<br>Germany<br>Tel.: 00494212003258