BiColourMap

ColourShader
public sealed class BiColourMap : ColourShader
Provides a mechanism for blending two colours across a value field.

Constructors

BiColourMap

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public BiColourMap(ValueShader field, Color colour0, Color colour1, float threshold0 = 0, float threshold1 = 1)
Create a bicolour map for a value field.
Parameters:
field (ValueShader)Value shader.
colour0 (Color)First colour.
colour1 (Color)Second colour.
threshold0 (float = 0)Threshold for colour0.
threshold1 (float = 1)Threshold for colour1.

Methods

ColourAt

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public override Color ColourAt(Ray ray, IObjectStack stack)
Evaluate this shader at a specific ray location.
Parameters:
ray (Ray)Coincident ray.
stack (IObjectStack)Object stack context.
Overrides: ColourShader.ColourAt

Dilate

public ColourShader Dilate(double sx, double sy)
Apply a dilation (or scaling) transformation to this shader.
inherited fromColourShader
Parameters:
sx (double)Horizontal dilation.
sy (double)Vertical dilation.
Returns: Dilated shader.

Fade

public ColourShader Fade(ValueShader transparency, bool combine)
Add a transparency layer to this shader.
inherited fromColourShader
Parameters:
transparency (ValueShader)Transparency layer.
combine (bool)If true, overlay transparency is combined with existing transparency. If false, overlay transparency overrules the existing transparency.
Returns: Modified shader.

Fade

public ColourShader Fade(ValueShader transparency)
Add a transparency layer to this shader.
inherited fromColourShader
Parameters:
transparency (ValueShader)Transparency layer.
Returns: Modified shader.

ResolveColour

protected Color ResolveColour(Color colour, Ray ray, IObjectStack stack)
Utility function for resolving a colour with the background.
inherited fromColourShader
Parameters:
colour (Color)Colour to resolve.
ray (Ray)Ray associated with colour location.
stack (IObjectStack)Object stack context.
Returns: Resolved colour.

Rotate

public ColourShader Rotate(Angle angle)
Apply a rotation transformation to this shader.
inherited fromColourShader
Parameters:
angle (Angle)Rotation angle (counter-clockwise).
Returns: Rotated shader.

Transform

public ColourShader Transform(Transform2D transform)
Apply a custom transformation to this shader.
inherited fromColourShader
Parameters:
transform (Transform2D)Transformation.
Returns: Transformed shader.

Translate

public ColourShader Translate(double dx, double dy)
Apply a translation transformation to this shader.
inherited fromColourShader
Parameters:
dx (double)Horizontal translation.
dy (double)Vertical translation.
Returns: Translated shader.