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76 lines
2.1 KiB
Markdown
76 lines
2.1 KiB
Markdown
# shape_glued2circles
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Returns shape points of two glued circles. 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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Dependencies: `rotate_p`, `bezier_curve`, `shape_pie`.
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## Parameters
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- `radius` : The radius of two circles.
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- `centre_dist` : The distance between centres of two circles.
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- `tangent_angle` : The angle of a tangent line. It defaults to 30 degrees. See examples below.
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- `t_step` : It defaults to 0.1. See [bezier_curve](https://openhome.cc/eGossip/OpenSCAD/lib-bezier_curve.html) for details.
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- `$fa`, `$fs`, `$fn` : Check [the circle module](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Using_the_2D_Subsystem#circle) for more details.
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## Examples
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include <rotate_p.scad>;
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include <bezier_curve.scad>;
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include <shape_pie.scad>;
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include <shape_glued2circles.scad>;
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$fn = 36;
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radius = 10;
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centre_dist = 30;
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shape_pts = shape_glued2circles(radius, centre_dist);
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polygon(shape_pts);
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include <rotate_p.scad>;
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include <bezier_curve.scad>;
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include <shape_pie.scad>;
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include <shape_glued2circles.scad>;
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$fn = 36;
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radius = 10;
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centre_dist = 30;
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shape_pts = shape_glued2circles(radius, centre_dist);
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width = centre_dist / 2 + radius;
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rotate_extrude() difference() {
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polygon(shape_pts);
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translate([-width, -radius])
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square([width, radius * 2]);
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}
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include <rotate_p.scad>;
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include <bezier_curve.scad>;
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include <shape_pie.scad>;
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include <shape_glued2circles.scad>;
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$fn = 36;
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radius = 10;
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centre_dist = 30;
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shape_pts = shape_glued2circles(radius, centre_dist);
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width = centre_dist + radius * 2;
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rotate_extrude()
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intersection() {
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rotate(-90) polygon(shape_pts);
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translate([radius / 2, 0])
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square([radius, width], center = true);
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}
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