124 lines
2.9 KiB
OpenSCAD
124 lines
2.9 KiB
OpenSCAD
// array functions
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// by david powell
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// licence LGPL V2 or later
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//
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// this lib provides 2 functions
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// Cubic_Array() , and Radial_Array()
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//
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//Cubic_Array(sx,sy,sz,nx,ny,nz,center){childobject}
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// produces a cubic grid of child objects
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// sx,sy,sz = spacing for each axis
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// nx,ny,nz and number of objects on each axis
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// center = true/false on if geometery is centered or not
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//
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//
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//Radial_Array(a,n,r){child object}
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// produces a clockwise radial array of child objects rotated around the local z axis
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// a= interval angle
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// n= number of objects
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// r= radius distance
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//
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// remove // from following line to run test
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//Cubic_and_Radial_Array_Test();
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module Cubic_and_Radial_Array_Test()
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{
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//center referance point
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translate([0,0,0])
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#cube([5,5,5],center=true);
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//cubic array of 5*5*5 objects spaced 10*10*10 center relative
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Cubic_Array(10,10,10,5,5,5,center=true)
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{
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sphere(2.5,$fn=60);
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cylinder(h=10,r=.5,center=true);
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rotate([90,0,0])
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cylinder(h=10,r=.5,center=true);
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rotate([0,90,0])
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cylinder(h=10,r=.5,center=true);
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}
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//a linear array allong x can be derived from the cubic array simply
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translate([60,0,0])
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Cubic_Array(10,0,0,5,1,1,center=false)
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{
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cube([5,5,5],center=true);
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}
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//a linear array allong y can be derived from the cubic array simply
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translate([0,60,0])
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Cubic_Array(0,10,0,1,5,1,center=false)
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{
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cube([5,5,5],center=true);
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}
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//a linear array allong z can be derived from the cubic array simply
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translate([0,0,60])
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Cubic_Array(0,0,10,1,1,5,center=false)
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{
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cube([5,5,5],center=true);
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}
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//a grid array allong x,y can be derived from the cubic array simply
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translate([0,0,-60])
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Cubic_Array(10,10,0,5,5,1,center=true)
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{
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cube([5,5,5],center=true);
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}
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//radial array of 32 objects rotated though 10 degrees
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translate([0,0,0])
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Radial_Array(10,32,40)
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{
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cube([2,4,6],center=true);
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}
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// a radial array of linear arrays
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rotate([45,45,45])
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Radial_Array(10,36,40)
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{
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translate([0,10,0])
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Cubic_Array(0,10,0,1,5,1,center=false)
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{
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cube([2,3,4],center=true);
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cylinder(h=10,r=.5,center=true);
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rotate([90,0,0])
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cylinder(h=10,r=.5,center=true);
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}
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}
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}
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// main lib modules
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module Cubic_Array(sx,sy,sz,nx,ny,nz,center) {
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if (center==true)
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translate([-(((nx+1)*sx)/2),-(((ny+1)*sy)/2),-(((nz+1)*sz)/2)])
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for(x=[1:nx])
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for(y=[1:ny])
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for(z=[1:nz])
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translate([x*sx,y*sy,z*sz])
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children([0:$children-1],center=true);
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else
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translate([0,0,0])
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for(x=[1:nx])
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for(y=[1:ny])
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for(z=[1:nz])
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translate([x*sx,y*sy,z*sz])
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children();
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}
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//
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//Radial_Array(a,n,r){child object}
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// produces a clockwise radial array of child objects rotated around the local z axis
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// a= interval angle
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// n= number of objects
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// r= radius distance
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//
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module Radial_Array(a,n,r){
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for (k=[0:n-1])
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rotate([0,0,-(a*k)])
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translate([0,r,0])
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children();
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}
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