Module colourmap_data 

Built-in colourmap LUT data.

Structs

ColourmapId

Identifies a colourmap (LUT) uploaded to the GPU.

Functions

coolwarm_rgba

Diverging coolwarm colourmap: blue at t=0, white at t=0.5, red at t=1.

export_paraview_xml_colourmap

Serialize a colourmap to the ParaView XML colourmap format.

greyscale_rgba

Linear greyscale ramp from black (index 0) to white (index 255).

inferno_rgba

Inferno colourmap : perceptually uniform. Black -> deep red -> orange -> light yellow.

jet_rgba

Jet colourmap : classic blue-cyan-green-yellow-red. Not perceptually uniform.

lerp_colourmap_lut

Linearly interpolate between colour stops to produce a 256-sample LUT.

magma_rgba

Magma colourmap : perceptually uniform. Black/purple -> orange -> near-white.

parse_paraview_xml_colourmap

Parse a ParaView XML colourmap file.

plasma_rgba

Plasma colourmap : perceptually uniform, colourblind-friendly.

rainbow_rgba

Rainbow colourmap: HSV hue sweep from 240 deg (blue) at t=0 to 0 deg (red) at t=1.

rdbu_r_rgba

RdBu diverging colourmap (red -> white -> blue, reversed so blue is at t=0). Suitable for signed quantities (negative = blue, zero = white, positive = red).

turbo_rgba

Turbo colourmap (Google 2019) : improved rainbow. Deep purple -> cyan -> green -> yellow -> red.

viridis_rgba

Viridis colourmap : perceptually uniform, colourblind-friendly.