color map and time varying data
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
It would be useful if the color map had an option to automatically adjust to the data range of the currently displayed color map. The option would require a suitable warning that the colors drawn can be misleading. The option can be useful when you are using a color map to look at the location or relative maximums and minimums, and don't care about concrete values that each color represents.
It would also be useful if we could add a mechanism whereby the complete data ranges over all time can be used to set the color table ranges. This would color the data correctly and at the same time not "range out". True this can be done manually, but when the number of arrays gets large, doing it manually is not feasible.
The complete range would often be too expensive to compute automatically, but if the simulation produces those values as meta data, they could be used to set up decent initial values. I think that if the reader forces them into vtkDataArray's per component range info keys it will propagate and work for most cases when automatically rescale is turned off.
This was a request from Jim's group at LANL.