- Processing
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- Processing Foundation

This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.

Name | ### curvePoint()
Examples |
    noFill();
    curve(5, 26, 5, 26, 73, 24, 73, 61);
    curve(5, 26, 73, 24, 73, 61, 15, 65);
    fill(255);
    ellipseMode(CENTER);
    int steps = 6;
    for (int i = 0; i <= steps; i++) {
      float t = i / float(steps);
      float x = curvePoint(5, 5, 73, 73, t);
      float y = curvePoint(26, 26, 24, 61, t);
      ellipse(x, y, 5, 5);
      x = curvePoint(5, 73, 73, 15, t);
      y = curvePoint(26, 24, 61, 65, t);
      ellipse(x, y, 5, 5);
    }
Description | Evaluates the curve at point t for points a, b, c, d. The parameter t may range from 0 (the start of the curve) and 1 (the end of the curve). a and d are the control points, and b and c are points on the curve. As seen in the example above, this can be used once with the x coordinates and a second time with the y coordinates to get the location of a curve at t.
Syntax |
    curvePoint(a, b, c, d, t)
Parameters |
a | float: coordinate of first control point
b | float: coordinate of first point on the curve
c | float: coordinate of second point on the curve
d | float: coordinate of second control point
t | float: value between 0 and 1
Returns | float
Related | curve() curveVertex() bezierPoint()

Updated on January 9, 2020 00:33:10pm EST