Patch: Transparency

Vertex Transparency Data

• Face/Vertex alpha data - Transparency of patches defined by the Faces and Vertices properties. (FaceVertexAlphaData)
• A single value, which applies the same transparency to the entire patch.
• An m-by-1 matrix (where m is the number of rows in the Faces property), which specifies one transparency value per face.
• An m-by-1 matrix (where m is the number of rows in the Vertices property), which specifies one transparency value per vertex.
• Data mapping - Determines how MATLAB interprets the face vertex alpha data. (AlphaDataMapping)
• (None) exact 0-1 transparency values. Any values not in this range are clamped to 0-1.
• (Direct) index into the figure alphamap - use the face vertex alpha data as indices directly into the alphamap. When not scaled, the data are usually integer values ranging from 1 to the length of the alphamap.
• (Scaled) linearly to the figure alphamap (scaled) - Transform the alpha data to span the portion of the alphamap indicated by the ALim property, linearly mapping data values to alpha values.

See Mapping Data to Transparency for more information on alpha data mapping.

Object Color Properties

• Color data - Color of the patch. You can specify color for each vertex, each face, or a single color for the entire patch. (CData)
• Colormaps - Select a figure colormap. Also brighten or darken the current colormap (brighten)
• Scale color data to axes colormap - Interpretation of color data. (CDataMapping)
• Scaled (checked) - transform the color data to span the colormap, linearly mapping data values to colors.
• Direct (unchecked) - use the color data as indices directly into the colormap.