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41 lines
1.3 KiB
Markdown
41 lines
1.3 KiB
Markdown
# shape_square
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Returns shape points and triangle indexes of a rounded square or rectangle. They can be used with xxx_extrude modules of dotSCAD. The shape points can be also used with the built-in polygon module.
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## Parameters
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- `size` : Accepts single value, square with both sides this length. It also accepts 2 value array `[x, y]`, rectangle with dimensions `x` and `y`.
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- `corner_r` : The corner is one-quarter of a circle (quadrant). The `corner_r` parameter determines the circle radius.
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- `$fa`, `$fs`, `$fn` : Used to control the four quadrants. Check [the circle module](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Using_the_2D_Subsystem#circle) for more details. The final fragments of a circle will be a multiple of 4 to fit edges.
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## Examples
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include <shape_square.scad>;
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polygon(
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shape_square(size = 50, corner_r = 5)[0]
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);
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include <shape_square.scad>;
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include <rotate_p.scad>;
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include <cross_sections.scad>;
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include <polysections.scad>;
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include <ring_extrude.scad>;
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$fn = 36;
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shape_pts_angles = shape_square(
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size = [20, 10],
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corner_r = 2
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);
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ring_extrude(
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shape_pts_angles[0],
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radius = 50, angle = 180, twist = 180, scale = 2,
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triangles = shape_pts_angles[1]
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);
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