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39 lines
879 B
Markdown
39 lines
879 B
Markdown
# in_shape
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Checks whether a point is inside a shape.
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**Since:** 1.3
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## Parameters
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- `shapt_pts` : The shape points.
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- `pt` : The point to be checked.
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- `include_edge` : If a point is on the edge of the shape, the function is default to return `false`. If `include_edge` is `true`, the function returns `true`.
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- `epsilon` : An upper bound on the relative error due to rounding in floating point arithmetic. Default to 0.0001.
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## Examples
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use <shape_taiwan.scad>
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use <in_shape.scad>
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points = shape_taiwan(30);
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%polygon(points);
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n = 200;
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xs = rands(-9, 9, n);
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ys = rands(-16, 16, n);
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pts = [
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for(i = [0:n - 1])
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let(p = [xs[i], ys[i]])
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if(in_shape(points, p, true))
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p
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];
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for(p = pts) {
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translate(p)
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circle(.2);
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}
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