VDistance

See also: VLength

Description

VDistance computes the distance between two vectors by calculating the length of their difference, essentially VLength.pr(v - u).

Supported Rates: frame, shape, pixel

Class Methods

VDistance.fr(u, v)

VDistance.sr(u, v)

VDistance.pr(u, v)

Make a VDistance VGen at the requested rate

Arguments

u

First vector input for distance computation.

v

Second vector input for distance computation.

Returns:

The distance between u and v.

dimensions

Examples

(
// This example uses the Distance operator to plot the distance at each pixel to the
// moving point on three different Lissajous curves, one in each color channel.
// The dot parameter controls the size of the dot around each curve, by scaling how
// quickly the dot will drive the length to the clamp values as distance from each
// Lissajous point increases.
~k = ScinthDef.new(\k, { |dot = 0.5|
    var rx = VSinOsc.fr(freq: 1.5, mul: 0.9, add: 0.0);
    var ry = VSinOsc.fr(freq: 1, phase: pi / 4, mul: 0.9, add: 0.0);
    var gx = VSinOsc.fr(freq: 0.5, phase: pi / 2, mul: 0.9, add: 0.0);
    var gy = VSinOsc.fr(freq: 1.25, mul: 1.0, add: 0.0);
    var bx = VSinOsc.fr(freq: 0.75, phase: pi / 3, mul: 0.9, add: 0.0);
    var by = VSinOsc.fr(phase: 3 * pi / 4, mul: 0.9, add: 0.0);
    var pos = VNormPos.pr;
    var r = VClamp.pr(1.0 - (VDistance.pr(VVec2.fr(rx, ry), pos) / dot), 0.0, 1.0);
    var g = VClamp.pr(1.0 - (VDistance.pr(VVec2.fr(gx, gy), pos) / dot), 0.0, 1.0);
    var b = VClamp.pr(1.0 - (VDistance.pr(VVec2.fr(bx, by), pos) / dot), 0.0, 1.0);
    VRGBOut.pr(r, g, b);
}).add;
)

(
~t = Scinth.new(\k);
)