How to resolve the algorithm Color wheel step by step in the Processing programming language

Published on 12 May 2024 09:40 PM
#Processing

How to resolve the algorithm Color wheel step by step in the Processing programming language

Table of Contents

Problem Statement

Write a function to draw a HSV color wheel completely with code. This is strictly for learning purposes only. It's highly recommended that you use an image in an actual application to actually draw the color wheel   (as procedurally drawing is super slow). This does help you understand how color wheels work and this can easily be used to determine a color value based on a position within a circle.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Color wheel step by step in the Processing programming language

Source code in the processing programming language

size(300, 300);
background(0);
float radius = min(width, height) / 2.0;
float cx = width / 2;
float cy = width / 2;
for (int x = 0; x < width; x++) {
  for (int y = 0; y < width; y++) {
    float rx = x - cx;
    float ry = y - cy;
    float s = sqrt(sq(rx) + sq(ry)) / radius;
    if (s <= 1.0) {
      float h = ((atan2(ry, rx) / PI) + 1.0) / 2.0;
      colorMode(HSB);
      color c = color(int(h * 255), int(s * 255), 255);
      set(x, y, c);
    }
  }
}


size(300, 300)
background(0)
radius = min(width, height) / 2.0
cx, cy = width / 2, width / 2
for x in range(width):
        for y in range(height):
            rx = x - cx
            ry = y - cy
            s = sqrt(rx ** 2 + ry ** 2) / radius
            if s <= 1.0:
                h = ((atan2(ry, rx) / PI) + 1.0) / 2.0
                colorMode(HSB)
                c = color(int(h * 255), int(s * 255), 255)
                set(x, y, c) # note set() used as Processing set() not as Python set()

You may also check:How to resolve the algorithm Motzkin numbers step by step in the Burlesque programming language
You may also check:How to resolve the algorithm Morse code step by step in the Elixir programming language
You may also check:How to resolve the algorithm Palindrome detection step by step in the Clojure programming language
You may also check:How to resolve the algorithm Loops/Infinite step by step in the Maxima programming language
You may also check:How to resolve the algorithm Metered concurrency step by step in the Erlang programming language