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Merge pull request #12 from peteruithoven/master
Added 2D shapes and layout modules
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/* | ||
* OpenSCAD 2D Shapes Library (www.openscad.org) | ||
* Copyright (C) 2012 Peter Uithoven | ||
* | ||
* License: LGPL 2.1 or later | ||
*/ | ||
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// 2D Shapes | ||
//ngon(sides, radius, center=false); | ||
//complexRoundSquare(size,rads1=[0,0], rads2=[0,0], rads3=[0,0], rads4=[0,0], center=true) | ||
//roundedSquare(pos=[10,10],r=2) | ||
//ellipsePart(width,height,numQuarters) | ||
//donutSlice(innerSize,outerSize, start_angle, end_angle) | ||
//pieSlice(size, start_angle, end_angle) //size in radius(es) | ||
//ellipse(width, height) { | ||
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// Examples | ||
/*use <layouts.scad>; | ||
grid(105,105,true,4) | ||
{ | ||
// ellipse | ||
ellipse(50,75); | ||
// part of ellipse (a number of quarters) | ||
ellipsePart(50,75,3); | ||
ellipsePart(50,75,2); | ||
ellipsePart(50,75,1); | ||
// complexRoundSquare examples | ||
complexRoundSquare([75,100],[20,10],[20,10],[20,10],[20,10]); | ||
complexRoundSquare([75,100],[0,0],[0,0],[30,50],[20,10]); | ||
complexRoundSquare([50,50],[10,20],[10,20],[10,20],[10,20],false); | ||
complexRoundSquare([100,100]); | ||
complexRoundSquare([100,100],rads1=[20,20],rads3=[20,20]); | ||
// pie slice | ||
pieSlice(50,0,10); | ||
pieSlice(50,45,190); | ||
pieSlice([50,20],180,270); | ||
// donut slice | ||
donutSlice(20,50,0,350); | ||
donutSlice(30,50,190,270); | ||
donutSlice([40,22],[50,30],180,270); | ||
donutSlice([50,20],50,180,270); | ||
donutSlice([20,30],[50,40],0,270); | ||
}*/ | ||
//---------------------- | ||
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// size, top left radius, top right radius, bottom right radius, bottom left radius, center | ||
module complexRoundSquare(size,rads1=[0,0], rads2=[0,0], rads3=[0,0], rads4=[0,0], center=true) | ||
{ | ||
width = size[0]; | ||
height = size[1]; | ||
//%square(size=[width, height],center=true); | ||
x1 = 0-width/2+rads1[0]; | ||
y1 = 0-height/2+rads1[1]; | ||
x2 = width/2-rads2[0]; | ||
y2 = 0-height/2+rads2[1]; | ||
x3 = width/2-rads3[0]; | ||
y3 = height/2-rads3[1]; | ||
x4 = 0-width/2+rads4[0]; | ||
y4 = height/2-rads4[1]; | ||
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scs = 0.1; //straight corner size | ||
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x = (center)? 0: width/2; | ||
y = (center)? 0: height/2; | ||
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translate([x,y,0]) | ||
{ | ||
hull() { | ||
// top left | ||
if(rads1[0] > 0 && rads1[1] > 0) | ||
translate([x1,y1]) mirror([1,0]) ellipsePart(rads1[0]*2,rads1[1]*2,1); | ||
else | ||
translate([x1,y1]) square(size=[scs, scs]); | ||
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// top right | ||
if(rads2[0] > 0 && rads2[1] > 0) | ||
translate([x2,y2]) ellipsePart(rads2[0]*2,rads2[1]*2,1); | ||
else | ||
translate([width/2-scs,0-height/2]) square(size=[scs, scs]); | ||
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// bottom right | ||
if(rads3[0] > 0 && rads3[1] > 0) | ||
translate([x3,y3]) mirror([0,1]) ellipsePart(rads3[0]*2,rads3[1]*2,1); | ||
else | ||
translate([width/2-scs,height/2-scs]) square(size=[scs, scs]); | ||
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// bottom left | ||
if(rads4[0] > 0 && rads4[1] > 0) | ||
translate([x4,y4]) rotate([0,0,-180]) ellipsePart(rads4[0]*2,rads4[1]*2,1); | ||
else | ||
#translate([x4,height/2-scs]) square(size=[scs, scs]); | ||
} | ||
} | ||
} | ||
module roundedSquare(pos=[10,10],r=2) { | ||
minkowski() { | ||
square([pos[0]-r*2,pos[1]-r*2],center=true); | ||
circle(r=r); | ||
} | ||
} | ||
// round shapes | ||
// The orientation might change with the implementation of circle... | ||
module ngon(sides, radius, center=false){ | ||
rotate([0, 0, 360/sides/2]) circle(r=radius, $fn=sides, center=center); | ||
} | ||
module ellipsePart(width,height,numQuarters) | ||
{ | ||
o = 1; //slight overlap to fix a bug | ||
difference() | ||
{ | ||
ellipse(width,height); | ||
if(numQuarters <= 3) | ||
translate([0-width/2-o,0-height/2-o,0]) square([width/2+o,height/2+o]); | ||
if(numQuarters <= 2) | ||
translate([0-width/2-o,-o,0]) square([width/2+o,height/2+o*2]); | ||
if(numQuarters < 2) | ||
translate([-o,0,0]) square([width/2+o*2,height/2+o]); | ||
} | ||
} | ||
module donutSlice(innerSize,outerSize, start_angle, end_angle) | ||
{ | ||
difference() | ||
{ | ||
pieSlice(outerSize, start_angle, end_angle); | ||
if(len(innerSize) > 1) ellipse(innerSize[0]*2,innerSize[1]*2); | ||
else circle(innerSize); | ||
} | ||
} | ||
module pieSlice(size, start_angle, end_angle) //size in radius(es) | ||
{ | ||
rx = ((len(size) > 1)? size[0] : size); | ||
ry = ((len(size) > 1)? size[1] : size); | ||
trx = rx* sqrt(2) + 1; | ||
try = ry* sqrt(2) + 1; | ||
a0 = (4 * start_angle + 0 * end_angle) / 4; | ||
a1 = (3 * start_angle + 1 * end_angle) / 4; | ||
a2 = (2 * start_angle + 2 * end_angle) / 4; | ||
a3 = (1 * start_angle + 3 * end_angle) / 4; | ||
a4 = (0 * start_angle + 4 * end_angle) / 4; | ||
if(end_angle > start_angle) | ||
intersection() { | ||
if(len(size) > 1) | ||
ellipse(rx*2,ry*2); | ||
else | ||
circle(rx); | ||
polygon([ | ||
[0,0], | ||
[trx * cos(a0), try * sin(a0)], | ||
[trx * cos(a1), try * sin(a1)], | ||
[trx * cos(a2), try * sin(a2)], | ||
[trx * cos(a3), try * sin(a3)], | ||
[trx * cos(a4), try * sin(a4)], | ||
[0,0] | ||
]); | ||
} | ||
} | ||
module ellipse(width, height) { | ||
scale([1, height/width, 1]) circle(r=width/2); | ||
} |
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/* | ||
* OpenSCAD Layout Library (www.openscad.org) | ||
* Copyright (C) 2012 Peter Uithoven | ||
* | ||
* License: LGPL 2.1 or later | ||
*/ | ||
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//list(iHeight); | ||
//grid(iWidth,iHeight,inYDir = true,limit=3) | ||
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// Examples: | ||
/*list(15) | ||
{ | ||
square([25,10]); | ||
square([25,10]); | ||
square([25,10]); | ||
square([25,10]); | ||
square([25,10]); | ||
}*/ | ||
/*grid(30,15,false,2) | ||
{ | ||
square([25,10]); | ||
square([25,10]); | ||
square([25,10]); | ||
square([25,10]); | ||
square([25,10]); | ||
}*/ | ||
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//---------------------- | ||
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module list(iHeight) | ||
{ | ||
for (i = [0 : $children-1]) | ||
translate([0,i*iHeight]) child(i); | ||
} | ||
module grid(iWidth,iHeight,inYDir = true,limit=3) | ||
{ | ||
for (i = [0 : $children-1]) | ||
{ | ||
translate([(inYDir)? (iWidth)*(i%limit) : (iWidth)*floor(i/limit), | ||
(inYDir)? (iHeight)*floor(i/limit) : (iHeight)*(i%limit)]) | ||
child(i); | ||
} | ||
} |
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