Skip to main content
Version: 3.4.20 (unreleased)

Colour Maps

Right-click commands for a colour map under the Colour Maps branch of the Collections Tree. Colour maps are the ramps that attribute layers are coloured by; cyclical ramps carry their own icon. New on the branch header creates one and Import loads one from file, and the header shows the standard group menu. Create Colourmap on the Facies branch builds a discrete ramp from the facies scheme, as does Create Discrete Colourmap on a mesh attribute.

Source resources: IDR_CT_CMAP.

Item Context Menu​

Right-click a colour map.

Actions​

  • Log Scale — Log Scale (ID_COLOURMAPS_LOGSCALE_CONVERT)
  • Randomise — Randomise (ID_COLOURMAPS_RANDOMISE)
  • Delete — Delete this object from the project. (ID_POPUP_ITEM_DELETE)

Class labels and visibility​

Select a colour map to see it in the Properties panel. Its data group holds its colours, Level 0 upward. A discrete colour map also has two more groups, with one row per class:

  • labels — A name for the class, shown in the 3D view's legend and on the histogram. Leave it empty to show the numeric value. A label stays with its class when the colour map is reversed or the attribute is filtered.
  • visible — Untick a class to hide it wherever the colour map is drawn. A mesh shows its texture or plain colour there, points of that class are hidden, and the legend leaves the class out. The histogram still counts it. This is separate from Use Filter and Invert Filter, and it applies to every attribute using this colour map.