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Fixed trace_bezier_patch to correct fatal error and modified it so it

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only calculates the vnf when needed, as this can be slow.
This commit is contained in:
Adrian Mariano 2020-05-21 15:52:44 -04:00
parent 30c63fd165
commit 83ed788ac6
1 changed files with 34 additions and 42 deletions
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76
beziers.scad
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@ -1255,49 +1255,41 @@ module bezier_polyhedron(patches=[], splinesteps=16, vnf=EMPTY_VNF, style="defau
// trace_bezier_patches(patches=[patch1, patch2], splinesteps=8, showcps=true);
module trace_bezier_patches(patches=[], size, splinesteps=16, showcps=true, showdots=false, showpatch=true, convexity=10, style="default")
{
assert(is_undef(size)||is_num(size));
assert(is_int(splinesteps) && splinesteps>0);
assert(is_list(patches) && all([for (patch=patches) is_patch(patch)]));
assert(is_bool(showcps));
assert(is_bool(showdots));
assert(is_bool(showpatch));
assert(is_int(convexity) && convexity>0);
vnfs = [
for (patch = patches)
bezier_patch(patch, splinesteps=splinesteps, style=style)
];
if (showcps || showdots) {
for (patch = patches) {
size = is_num(size)? size :
let( bounds = pointlist_bounds(flatten(patch)) )
max(bounds[1]-bounds[0])*0.01;
if (showcps) {
move_copies(flatten(patch)) color("red") sphere(d=size*2);
color("cyan") {
if (is_tripatch(patch)) {
for (i=[0:1:len(patch)-2], j=[0:1:len(patch[i])-2]) {
extrude_from_to(patch[i][j], patch[i+1][j]) circle(d=size);
extrude_from_to(patch[i][j], patch[i][j+1]) circle(d=size);
extrude_from_to(patch[i+1][j], patch[i][j+1]) circle(d=size);
}
} else {
for (i=[0:1:len(patch)-1], j=[0:1:len(patch[i])-1]) {
if (i<len(patch)-1) extrude_from_to(patch[i][j], patch[i+1][j]) circle(d=size);
if (j<len(patch[i])-1) extrude_from_to(patch[i][j], patch[i][j+1]) circle(d=size);
}
}
}
}
if (showdots){
color("blue") move_copies(vnfs[i][0]) sphere(d=size);
}
}
}
if (showpatch) {
vnf_polyhedron(vnfs, convexity=convexity);
}
assert(is_undef(size)||is_num(size));
assert(is_int(splinesteps) && splinesteps>0);
assert(is_list(patches) && all([for (patch=patches) is_patch(patch)]));
assert(is_bool(showcps));
assert(is_bool(showdots));
assert(is_bool(showpatch));
assert(is_int(convexity) && convexity>0);
for (patch = patches) {
size = is_num(size)? size :
let( bounds = pointlist_bounds(flatten(patch)) )
max(bounds[1]-bounds[0])*0.01;
if (showcps) {
move_copies(flatten(patch)) color("red") sphere(d=size*2);
color("cyan") {
if (is_tripatch(patch)) {
for (i=[0:1:len(patch)-2], j=[0:1:len(patch[i])-2]) {
extrude_from_to(patch[i][j], patch[i+1][j]) circle(d=size);
extrude_from_to(patch[i][j], patch[i][j+1]) circle(d=size);
extrude_from_to(patch[i+1][j], patch[i][j+1]) circle(d=size);
}
} else {
for (i=[0:1:len(patch)-1], j=[0:1:len(patch[i])-1]) {
if (i<len(patch)-1) extrude_from_to(patch[i][j], patch[i+1][j]) circle(d=size);
if (j<len(patch[i])-1) extrude_from_to(patch[i][j], patch[i][j+1]) circle(d=size);
}
}
}
}
if (showpatch || showdots){
vnf = bezier_patch(patch, splinesteps=splinesteps, style=style);
if (showpatch) vnf_polyhedron(vnf, convexity=convexity);
if (showdots) color("blue") move_copies(vnf[0]) sphere(d=size);
}
}
}
// vim: noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap