Name | curveTangent() |
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Examples |
noFill() curve(5, 26, 73, 24, 73, 61, 15, 65) steps = 6 for i in range(steps): t = i / float(steps) x = curvePoint(5, 73, 73, 15, t) y = curvePoint(26, 24, 61, 65, t) #ellipse(x, y, 5, 5) tx = curveTangent(5, 73, 73, 15, t) ty = curveTangent(26, 24, 61, 65, t) a = atan2(ty, tx) a -= PI/2.0 line(x, y, cos(a)*8 + x, sin(a)*8 + y) | ||||||||||
Description | Calculates the tangent of a point on a curve. There's a good definition of tangent on Wikipedia. | ||||||||||
Syntax | curveTangent(a, b, c, d, t) | ||||||||||
Parameters |
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Related |
curve() curveVertex() curvePoint() bezierTangent() |
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