Py5Graphics.blue()

Extracts the blue value from a color, scaled to match current Py5Graphics.color_mode().

Description

Extracts the blue value from a color, scaled to match current Py5Graphics.color_mode().

The blue() function is easy to use and understand, but it is slower than a technique called bit masking. When working in color_mode(RGB, 255), you can achieve the same results as blue() but with greater speed by using a bit mask to remove the other color components. For example, blue(c) and c & 0xFF both extract the blue value from a color variable c but the later is faster.

This method is the same as blue() but linked to a Py5Graphics object. To see example code for how it can be used, see blue().

Underlying Java method: PGraphics.blue

Syntax

blue(rgb: int, /) -> float

Parameters

  • rgb: int - any value of the color datatype

Updated on September 11, 2021 16:51:34pm UTC