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Added sa arguments to [xyz]ring.

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Revar Desmera 2018-10-07 20:00:50 -07:00
parent a2ed6d451c
commit b6a922295b
1 changed files with 37 additions and 3 deletions
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transforms.scad
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@ -450,9 +450,43 @@ module arc_of(
}
module xring(n=2,r=0,rot=true) {if (n>0) for (i=[0:n-1]) {a=i*360/n; xrot(a) back(r) xrot(rot?0:-a) children();}}
module yring(n=2,r=0,rot=true) {if (n>0) for (i=[0:n-1]) {a=i*360/n; yrot(a) right(r) yrot(rot?0:-a) children();}}
module zring(n=2,r=0,rot=true) {if (n>0) for (i=[0:n-1]) {a=i*360/n; zrot(a) right(r) zrot(rot?0:-a) children();}}
// Evenly distributes n duplicate children around a circle on the YZ plane, around the
// X axis. First moves children away from the X axis by r distance, in direction sa.
// Then copies them around the axis of rotation, for a total of n copies. If rot is
// true, each copy is rotated in place to orient to the center of rotation.
// n = number of copies of children to distribute around the circle. (Default: 2)
// r = radius of ring to distribute children around. (Default: 0)
// sa = start angle for first (unrotated) copy. (Default: 0)
// rot = if true, rotate each copy of children with respect to the center of the ring.
// Example:
// xring(n=3, r=10, sa=270) yspread(10) yrot(120) cylinder(h=10, d=1, center=false);
module xring(n=2,r=0,sa=0,rot=true) {if (n>0) for (i=[0:n-1]) {a=i*360/n; xrot(a+sa) back(r) xrot((rot?0:-a)-sa) children();}}
// Evenly distributes n duplicate children around a circle on the XZ plane, around the
// Y axis. First moves children away from the Y axis by r distance, in direction sa.
// Then copies them around the axis of rotation, for a total of n copies. If rot is
// true, each copy is rotated in place to orient to the center of rotation.
// n = number of copies of children to distribute around the circle. (Default: 2)
// r = radius of ring to distribute children around. (Default: 0)
// sa = start angle for first (unrotated) copy. (Default: 0)
// rot = if true, rotate each copy of children with respect to the center of the ring.
// Example:
// yring(n=3, r=10, sa=270) xspread(10) xrot(-120) cylinder(h=10, d=1, center=false);
module yring(n=2,r=0,sa=0,rot=true) {if (n>0) for (i=[0:n-1]) {a=i*360/n; yrot(a-sa) right(r) yrot((rot?0:-a)+sa) children();}}
// Evenly distributes n duplicate children around a circle on the XY plane, around the
// Z axis. First moves children away from the Z axis by r distance, in direction sa.
// Then copies them around the axis of rotation, for a total of n copies. If rot is
// true, each copy is rotated in place to orient to the center of rotation.
// n = number of copies of children to distribute around the circle. (Default: 2)
// r = radius of ring to distribute children around. (Default: 0)
// sa = start angle for first (unrotated) copy. (Default: 0)
// rot = if true, rotate each copy of children with respect to the center of the ring.
// Example:
// zring(n=3, r=10, sa=90) xspread(10) xrot(30) cylinder(h=10, d=1, center=false);
module zring(n=2,r=0,sa=0,rot=true) {if (n>0) for (i=[0:n-1]) {a=i*360/n; zrot(a+sa) right(r) zrot((rot?0:-a)-sa) children();}}
// Spreads out n copies of the given children along the X axis.