first bash at cleaning up shapes. needs rewrite for perf and capabilities
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arthur
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shapes.scad
117
shapes.scad
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@ -6,35 +6,44 @@
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* License: LGPL 2.1 or later
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*/
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// 2D Shapes
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//ngon(sides, radius, center=false);
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include <units.scad>
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// 3D Shapes
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//box(width, height, depth);
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//roundedBox(width, height, depth, factor);
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//cone(height, radius);
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//ellipticalCylinder(width, height, depth);
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//ellipsoid(width, height);
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//tube(height, radius, wall, center = false);
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//tube2(height, ID, OD, center = false);
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//ovalTube(width, height, depth, wall, center = false);
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//hexagon(height, depth);
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//octagon(height, depth);
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//dodecagon(height, depth);
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//hexagram(height, depth);
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//rightTriangle(adjacent, opposite, depth);
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//equiTriangle(side, depth);
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//12ptStar(height, depth);
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/*
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2D Shapes
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ngon(sides, radius, center=false);
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3D Shapes
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box(width, height, depth);
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roundedBox(width, height, depth, factor);
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cone(height, radius);
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ellipticalCylinder(width, height, depth);
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ellipsoid(width, height);
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tube(height, radius, wall, center = false);
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tube2(height, ID, OD, center = false);
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ovalTube(width, height, depth, wall, center = false);
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hexagon(height, depth);
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octagon(height, depth);
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dodecagon(height, depth);
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hexagram(height, depth);
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rightTriangle(adjacent, opposite, depth);
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equiTriangle(side, depth);
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12ptStar(height, depth);
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*/
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//----------------------
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// size is a vector [w, h, d]
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module box(width, height, depth) {
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echo("USE CUBE[size=[w,d,h,true]]");
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cube([width, height, depth], true);
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}
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// size is a vector [w, h, d]
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module roundedBox(width, height, depth, radius) {
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module roundedBox(width = 1,
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height = 1,
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depth = 1,
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radius = 0.2) {
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size=[width, height, depth];
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cube(size - [2*radius,0,0], true);
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cube(size - [0,2*radius,0], true);
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@ -56,54 +65,62 @@ module ellipsoid(w, h, center = false) {
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scale([1, h/w, 1]) sphere(r=w/2, center=center);
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}
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// wall is wall thickness
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module tube(height, radius, wall, center = false) {
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module tube(height = 10,
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radius = 10,
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wall = 2,
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center = false) {
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difference() {
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cylinder(h=height, r=radius, center=center);
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cylinder(h=height, r=radius-wall, center=center);
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translate([0,0,-epsilon])
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cylinder(h=height+2*epsilon, r=radius-wall, center=center);
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}
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}
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// wall is wall thickness
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module tube2(height, ID, OD, center = false) {
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difference() {
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cylinder(h=height, r=OD/2, center=center);
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cylinder(h=height, r=ID/2, center=center);
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}
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module tube2(height = 10,
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ID = 16,
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OD = 20,
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center = false) {
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tube(height=height,center=center,radius=OD/2,wall=(OD/2)-(ID/2));
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}
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// wall is wall thickness
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module ovalTube(height, rx, ry, wall, center = false) {
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module ovalTube(height = 5,
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rx = 10,
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ry = 5,
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wall = 1,
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center = false) {
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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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scale([(rx-wall)/rx, (ry-wall)/rx, 1]) cylinder(h=height, r=rx, center=center);
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}
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}
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// size is the XY plane size, height in Z
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module hexagon(size, height) {
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module hexagon(size = 10,
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height = 5) {
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boxWidth = size/1.75;
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for (r = [-60, 0, 60]) rotate([0,0,r]) cube([boxWidth, size, height], true);
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for (r = [-60, 0, 60])
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rotate([0,0,r])
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cube([boxWidth, size, height], true);
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}
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// size is the XY plane size, height in Z
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module octagon(size, height) {
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module octagon(size = 10,
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height = 5) {
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intersection() {
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cube([size, size, height], true);
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rotate([0,0,45]) cube([size, size, height], true);
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rotate([0,0,45])
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cube([size, size, height], true);
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}
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}
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// size is the XY plane size, height in Z
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module dodecagon(size, height) {
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module dodecagon(size = 10,
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height = 5) {
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intersection() {
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hexagon(size, height);
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rotate([0,0,90]) hexagon(size, height);
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}
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}
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// size is the XY plane size, height in Z
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module hexagram(size, height) {
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module hexagram(size = 10,
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height = 5) {
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boxWidth=size/1.75;
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for (v = [[0,1],[0,-1],[1,-1]]) {
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intersection() {
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@ -115,9 +132,11 @@ module hexagram(size, height) {
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module rightTriangle(adjacent, opposite, height) {
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difference() {
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translate([-adjacent/2,opposite/2,0]) cube([adjacent, opposite, height], true);
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translate([-adjacent/2,opposite/2,0])
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cube([adjacent, opposite, height], true);
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translate([-adjacent,0,0]) {
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rotate([0,0,atan(opposite/adjacent)]) dislocateBox(adjacent*2, opposite, height+2);
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rotate([0,0,atan(opposite/adjacent)])
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dislocateBox(adjacent*2, opposite, height+2);
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}
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}
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}
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@ -132,23 +151,15 @@ module equiTriangle(side, height) {
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}
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}
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module 12ptStar(size, height) {
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module 12ptStar(size = 12,
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height = 5) {
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starNum = 3;
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starAngle = 360/starNum;
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starAngle = 90/starNum;
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for (s = [1:starNum]) {
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rotate([0, 0, s*starAngle]) cube([size, size, height], true);
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}
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}
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//-----------------------
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//MOVES THE ROTATION AXIS OF A BOX FROM ITS CENTER TO THE BOTTOM LEFT CORNER
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module dislocateBox(w, h, d) {
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translate([0,0,-d/2]) cube([w,h,d]);
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}
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//-----------------------
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// Tests
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//module test2D_ellipse(){ellipse(10, 5);}
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module test_ellipsoid(){ellipsoid(10, 5);}
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//module test2D_egg_outline(){egg_outline();}
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