scripts.squircle.jfl Maven / Gradle / Ivy

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/*
 * An example Jiffle script: creates a 'squircle'
 * (a sort of squarish-circle).
 *
 * Author: Michael Bedward
 */

/* We declare variables that we want to remain
 * in scope between pixels in the 'init' block.
 * The functions  width() and height() return
 * the dimensions of the destination area.
 */
init {
    w = width() - 1;
    h = height() - 1;
}

/* Calculations performed for each pixel.
 * The functions x() and y() return current
 * pixel coordinates.
 */
dx = 4 * M_PI * (0.5 - x() / w);
dy = 4 * M_PI * (0.5 - y() / h); 

/* The variable 'result' represents the
 * destination image (you can use any name
 * you like in your own scripts).
 */
result = sqrt(abs(cos(dx) + cos(dy)));