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ColorFromElementId Method

Creates a new color from an Element ID value

Namespace:  Eto.Drawing
Assembly:  Eto (in Eto.dll) Version: 2.5.3-dev
Syntax
Copy
public static Color FromElementId(
	int id,
	int alpha = 255
)

Parameters

id
Type: SystemInt32
Identifier.
alpha (Optional)
Type: SystemInt32
Alpha.

Return Value

Type: Color
A new instance of a Color with the value from the element id
Remarks
This algorithm is from the SVG# code base: The counter is used to generate IDs in the range [0,2^24-1] The 24 bits of the counter are interpreted as follows: [red 7 bits | green 7 bits | blue 7 bits |shuffle term 3 bits] The shuffle term is used to define how the remaining high bit is set on each color. The colors are generated in the range [0,127] (7 bits) instead of [0,255]. Then the shuffle term is used to adjust them into the range [0,255]. This algorithm has the feature that consecutive ids generate visually distinct colors.
See Also