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Name

green()

Examples
example pic
color c = color(20, 75, 200);  // Define color 'c'
fill(c);  // Use color variable 'c' as fill color
rect(15, 20, 35, 60);  // Draw left rectangle

float greenValue = green(c);  // Get green in 'c'
println(greenValue);  // Print "75.0"
fill(0, greenValue, 0);  // Use 'greenValue' in new fill
rect(50, 20, 35, 60);  // Draw right rectangle
Description Extracts the green value from a color, scaled to match current colorMode(). The value is always returned as a float, so be careful not to assign it to an int value.

The green() function is easy to use and understand, but it is slower than a technique called bit shifting. When working in colorMode(RGB, 255), you can acheive the same results as green() but with greater speed by using the right shift operator (>>) with a bit mask. For example, the following two lines of code are equivalent means of getting the green value of the color value c:

float r1 = green(c);  // Simpler, but slower to calculate
float r2 = c >> 8 & 0xFF;  // Very fast to calculate
Syntax
green(rgb)
Parameters
rgb int: any value of the color datatype
Returnsfloat
Relatedred()
blue()
alpha()
hue()
saturation()
brightness()
>> (right shift)
Updated on July 30, 2016 04:31:58am EDT

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