Remove regular_shapes.scad.
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vendor/regular_shapes.scad
vendored
206
vendor/regular_shapes.scad
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/*
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* OpenSCAD Shapes Library (www.openscad.org)
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* Copyright (C) 2010-2011 Giles Bathgate
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License,
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* LGPL version 2.1, or (at your option) any later version of the GPL.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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// 2D regular shapes
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module triangle(radius)
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{
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o=radius/2; //equivalent to radius*sin(30)
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a=radius*sqrt(3)/2; //equivalent to radius*cos(30)
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polygon(points=[[-a,-o],[0,radius],[a,-o]],paths=[[0,1,2]]);
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}
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module reg_polygon(sides,radius)
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{
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function dia(r) = sqrt(pow(r*2,2)/2); //sqrt(r*2^2/2) if only we had an exponention op
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if(sides<2) square([radius,0]);
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if(sides==3) triangle(radius);
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if(sides==4) square([dia(radius),dia(radius)],center=true);
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if(sides>4) circle(r=radius,$fn=sides);
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}
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module pentagon(radius)
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{
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reg_polygon(5,radius);
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}
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module hexagon(radius)
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{
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reg_polygon(6,radius);
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}
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module heptagon(radius)
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{
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reg_polygon(7,radius);
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}
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module octagon(radius)
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{
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reg_polygon(8,radius);
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}
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module nonagon(radius)
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{
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reg_polygon(9,radius);
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}
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module decagon(radius)
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{
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reg_polygon(10,radius);
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}
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module hendecagon(radius)
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{
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reg_polygon(11,radius);
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}
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module dodecagon(radius)
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{
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reg_polygon(12,radius);
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}
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module ellipse(width, height) {
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scale([1, height/width, 1]) circle(r=width/2);
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}
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module egg_outline(width, length){
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union(){
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difference(){
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ellipse(width, 2*length-width);
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translate([-length/2, 0, 0]) square(length);
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}
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circle(r=width/2);
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}
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}
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//3D regular shapes
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module cone(height, radius, center = false)
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{
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cylinder(height, radius, 0, center);
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}
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module oval_prism(height, rx, ry, center = false)
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{
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scale([1, rx/ry, 1]) cylinder(h=height, r=ry, center=center);
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}
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module oval_tube(height, rx, ry, wall, center = false)
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{
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difference() {
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scale([1, ry/rx, 1]) cylinder(h=height, r=rx, center=center);
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translate([0,0,-height/2]) scale([(rx-wall)/rx, (ry-wall)/rx, 2]) cylinder(h=height, r=rx, center=center);
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}
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}
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module cylinder_tube(height, radius, wall, center = false)
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{
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tubify(radius,wall)
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cylinder(h=height, r=radius, center=center);
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}
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//Tubifies any regular prism
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module tubify(radius,wall)
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{
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difference()
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{
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child(0);
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translate([0, 0, -0.1]) scale([(radius-wall)/radius, (radius-wall)/radius, 2]) child(0);
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}
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}
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module triangle_prism(height,radius)
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{
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linear_extrude(height=height) triangle(radius);
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}
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module triangle_tube(height,radius,wall)
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{
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tubify(radius,wall) triangle_prism(height,radius);
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}
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module pentagon_prism(height,radius)
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{
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linear_extrude(height=height) pentagon(radius);
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}
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module pentagon_tube(height,radius,wall)
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{
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tubify(radius,wall) pentagon_prism(height,radius);
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}
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module hexagon_prism(height,radius)
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{
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linear_extrude(height=height) hexagon(radius);
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}
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module heptagon_prism(height,radius)
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{
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linear_extrude(height=height) heptagon(radius);
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}
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module octagon_prism(height,radius)
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{
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linear_extrude(height=height) octagon(radius);
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}
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module nonagon_prism(height,radius)
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{
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linear_extrude(height=height) nonagon(radius);
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}
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module decagon_prism(height,radius)
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{
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linear_extrude(height=height) decagon(radius);
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}
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module hendecagon_prism(height,radius)
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{
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linear_extrude(height=height) hendecagon(radius);
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}
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module dodecagon_prism(height,radius)
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{
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linear_extrude(height=height) dodecagon(radius);
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}
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module torus(outerRadius, innerRadius)
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{
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r=(outerRadius-innerRadius)/2;
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rotate_extrude() translate([innerRadius+r,0,0]) circle(r);
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}
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module triangle_pyramid(radius)
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{
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o=radius/2; //equivalent to radius*sin(30)
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a=radius*sqrt(3)/2; //equivalent to radius*cos(30)
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polyhedron(points=[[-a,-o,-o],[a,-o,-o],[0,radius,-o],[0,0,radius]],triangles=[[0,1,2],[1,2,3],[0,1,3],[0,2,3]]);
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}
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module square_pyramid(base_x, base_y,height)
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{
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w=base_x/2;
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h=base_y/2;
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polyhedron(points=[[-w,-h,0],[-w,h,0],[w,h,0],[w,-h,0],[0,0,height]],triangles=[[0,3,2,1], [0,1,4], [1,2,4], [2,3,4], [3,0,4]]);
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}
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// Tests:
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module test_square_pyramid(){square_pyramid(10, 20, 30);}
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