2D transfer functions and editor in ParaView adding 2nd histogram box
Using the following procedure, adding more than one box in the histogram, it will add the boxes on top of each other and not be apparent that another box was added. I would suggest whenever a new box is added, it be centered wherever the mouse is within the histogram box.
- Open
Sources
>Data Objects
>Wavelet
- Switch representation to
Volume
- Enable
Advanced
on the Properties panel. - Scroll to the
Volume Rendering
group on the Properties panel and enableUse 2D Transfer Function
- Open the
Color Map Editor
to reveal the 2D histogram of the data - Edit the
Number of Bins
property (to 256, say) - Update the 2D histogram by clicking on the
Compute data histogram
() button next to the histogram. - Double-click on the histogram to add a new transfer function box
- Click and drag the box to change the volume rendering transfer function. You can also edit the box size by clicking and dragging on the corners of the box.
- Add another box by double-clicking as above.
This second box will appear at the same location and size of the first box, so it appears as though the second box was not created.