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doc fixes

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This commit is contained in:
Adrian Mariano
2023-03-05 12:11:30 -05:00
parent e8c400517e
commit 2c54188c24
4 changed files with 33 additions and 17 deletions
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31
beziers.scad
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@@ -887,15 +887,19 @@ function is_bezier_patch(x) =
// Description:
// Returns a flat rectangular bezier patch of degree `N`, centered on the XY plane.
// Arguments:
// size = 2D XY size of the patch.
// size = scalar or 2-vector giving the X and Y dimensions of the patch.
// ---
// N = Degree of the patch to generate. Since this is flat, a degree of 1 should usually be sufficient.
// orient = The orientation to rotate the edge patch into. Given as an [X,Y,Z] rotation angle list.
// trans = Amount to translate patch, after rotating to `orient`.
// N = Degree of the patch to generate. Since this is flat, a degree of 1 should usually be sufficient. Default: 1
// orient = A direction vector. Point the patch normal in this direction.
// spin = Spin angle to apply to the patch
// trans = Amount to translate patch, after orient and spin.
// Example(3D):
// patch = bezier_patch_flat(size=[100,100], N=3);
// patch = bezier_patch_flat(size=[100,100]);
// debug_bezier_patches([patch], size=1, showcps=true);
function bezier_patch_flat(size=[100,100], N=4, spin=0, orient=UP, trans=[0,0,0]) =
function bezier_patch_flat(size, N=1, spin=0, orient=UP, trans=[0,0,0]) =
assert(N>0)
let(size = force_list(size,2))
assert(is_vector(size,2))
let(
patch = [
for (x=[0:1:N]) [
@@ -994,6 +998,7 @@ function _bezier_rectangle(patch, splinesteps=16, style="default") =
// It can be a scalar, which gives a uniform grid, or
// it can be [USTEPS, VSTEPS], which gives difference spacing in the U and V parameters.
// Note that the surface you produce may be disconnected and is not necessarily a valid manifold in OpenSCAD.
// You must also ensure that the patches mate exactly along their edges, or the VNF will be invalid.
// Arguments:
// patches = The bezier patch or list of bezier patches to convert into a vnf.
// splinesteps = Number of segments on the border of the bezier surface. You can specify [USTEPS,VSTEPS]. Default: 16
@@ -1010,21 +1015,23 @@ function _bezier_rectangle(patch, splinesteps=16, style="default") =
// vnf = bezier_vnf(patch, splinesteps=16);
// vnf_polyhedron(vnf);
// Example(3D,FlatSpin,VPD=444): Combining multiple patches
// patch = [
// patch = 100*[
// // u=0,v=0 u=1,v=0
// [[0, 0,0], [33, 0, 0], [67, 0, 0], [100, 0,0]],
// [[0, 33,0], [33, 33, 33], [67, 33, 33], [100, 33,0]],
// [[0, 67,0], [33, 67, 33], [67, 67, 33], [100, 67,0]],
// [[0,100,0], [33,100, 0], [67,100, 0], [100,100,0]],
// [[0, 0,0], [1/3, 0, 0], [2/3, 0, 0], [1, 0,0]],
// [[0,1/3,0], [1/3,1/3,1/3], [2/3,1/3,1/3], [1,1/3,0]],
// [[0,2/3,0], [1/3,2/3,1/3], [2/3,2/3,1/3], [1,2/3,0]],
// [[0, 1,0], [1/3, 1, 0], [2/3, 1, 0], [1, 1,0]],
// // u=0,v=1 u=1,v=1
// ];
// fpatch = bezier_patch_flat([100,100]);
// tpatch = translate([-50,-50,50], patch);
// flatpatch = translate([0,0,50], fpatch);
// vnf = bezier_vnf([
// tpatch,
// xrot(90, tpatch),
// xrot(-90, tpatch),
// xrot(180, tpatch),
// yrot(90, tpatch),
// yrot(90, flatpatch),
// yrot(-90, tpatch)]);
// vnf_polyhedron(vnf);
// Example(3D):