Module enthought.tvtk.util.gradient

API Reference for Enthought Tool Suite 3.2.0

The common code for a gradient editor for tvtk.LookupTables and tvtk.VolumeProperty color transfer functions. Most of the code is independent of tvtk however.

The toolkit specific code is in toolkit specific files. This code is distributed under the conditions of the BSD license.

This code was originally written by Gerald Knizia <cgk.d@gmx.net> and later modified by Prabhu Ramachandran for tvtk and MayaVi2.

Classes
Functions
Imported Names

Classes

Color - Represents a color and provides means of automatic conversion between HSV(A) and RGB(A) color spaces
ColorControlPoint - A control point represents a fixed position in the gradient and its assigned color
GradientTable - this class represents a logical gradient table, i.e
GradientTableOld - this class represents a logical gradient table, i.e

Function summary

hsva_to_rgba(h_, s, v, a)
lerp(arg0, arg1, f)
rgba_to_hsva(r, g, b, a)

Functions

hsva_to_rgba(h_, s, v, a)

Convert color from HSVA to RGBA.

input: h,s,v,a are from [0..1] output: r,g,b,a are from [0..1]

See http://en.wikipedia.org/wiki/HSV_color_space Only difference: hue range is [0..1) here, not [0..360).
lerp(arg0, arg1, f)

linearly interpolate between arguments arg0 and arg1.

The weight f is from [0..1], with f=0 giving arg0 and f=1 giving arg1
rgba_to_hsva(r, g, b, a)

Convert color from RGBA to HSVA.

input: r,g,b,a are from [0..1] output: h,s,v,a are from [0..1] (h will never be 1.0)

See http://en.wikipedia.org/wiki/HSV_color_space Only difference: hue range is [0..1) here, not [0..360).

Imported Names

Local name	Refers to
splitext	os.path.splitext
tvtk	enthought.tvtk.tvtk.tvtk

Module enthought.​tvtk.​util.​gradient_editor

Classes

Function summary

Functions

Imported Names

Module enthought.tvtk.util.gradient_editor