GuideToColourFunction

A callable struct that translates any value into a colour

struct GuideToColourFunction {

auto opCall(T value, bool scale);

auto toDouble(T value, bool scale);

auto unscaled(T value);

RGBA delegate(double) doubleConvert;

RGBA delegate(string) stringConvert;

double delegate(string) stringToDoubleConvert;

import ggplotd.colourspace : isColour;;

import ggplotd.colour : namedColour, RGBA;;

import std.typecons : Nullable;;

Nullable!(double delegate(double)) scaleFunction;

}

Members

Functions

opCall auto opCall(T value, bool scale): Call the function with a value
toDouble auto toDouble(T value, bool scale): Undocumented in source. Be warned that the author may not have intended to support it.
unscaled auto unscaled(T value): Undocumented in source. Be warned that the author may not have intended to support it.

Variables

doubleConvert RGBA delegate(double) doubleConvert;: Function that governs translation from double to colour (continuous to colour)
scaleFunction Nullable!(double delegate(double)) scaleFunction;: Additional scaling of the field (i.e. log10, polar coordinates)
stringConvert RGBA delegate(string) stringConvert;: Function that governs translation from string to colour (discrete to colour)
stringToDoubleConvert double delegate(string) stringToDoubleConvert;: Function that governs translation from string to double (discrete to continuous)

Meta

Source

See Implementation

ggplotd guide functions

guideFunction

structs