mirror of
https://github.com/BelfrySCAD/BOSL2.git
synced 2024-12-29 16:29:40 +00:00
Enable passing a region to stroke().
This commit is contained in:
Garth Minette
parent
724e49385b
commit
83f61f5a6a
1 changed files with 188 additions and 182 deletions
370
drawing.scad
370
drawing.scad
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@ -132,7 +132,7 @@
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// path = [for (i=[0:15:360]) [(i-180)/3,20*cos(2*i)]];
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// stroke(path, width=2, dots=true, color="lightgreen", dots_color="red", $fn=18);
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function stroke(
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path, width=1, closed=false,
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path, width=1, closed,
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endcaps, endcap1, endcap2, joints, dots,
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endcap_width, endcap_width1, endcap_width2, joint_width, dots_width,
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endcap_length, endcap_length1, endcap_length2, joint_length, dots_length,
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@ -143,7 +143,7 @@ function stroke(
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convexity=10, hull=true
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) = no_function("stroke");
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module stroke(
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path, width=1, closed=false,
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path, width=1, closed,
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endcaps, endcap1, endcap2, joints, dots,
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endcap_width, endcap_width1, endcap_width2, joint_width, dots_width,
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endcap_length, endcap_length1, endcap_length2, joint_length, dots_length,
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@ -200,16 +200,8 @@ module stroke(
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assert(false, str("Invalid endcap: ",cap))
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) * linewidth;
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closed = default(closed, is_region(path));
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assert(is_bool(closed));
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assert(is_list(path));
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if (len(path) > 1) {
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assert(is_path(path,[2,3]), "The path argument must be a list of 2D or 3D points.");
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}
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path = deduplicate( closed? close_path(path) : path );
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assert(is_num(width) || (is_vector(width) && len(width)==len(path)));
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width = is_num(width)? [for (x=path) width] : width;
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assert(all([for (w=width) w>0]));
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dots = dots==true? "dot" : dots;
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@ -247,175 +239,196 @@ module stroke(
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endcap_angle1 = first_defined([endcap_angle1, endcap_angle, dots_angle]);
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endcap_angle2 = first_defined([endcap_angle2, endcap_angle, dots_angle]);
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joint_angle = first_defined([joint_angle, dots_angle]);
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assert(is_undef(endcap_angle1)||is_num(endcap_angle1));
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assert(is_undef(endcap_angle2)||is_num(endcap_angle2));
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assert(is_undef(joint_angle)||is_num(joint_angle));
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endcap_shape1 = _shape_path(endcap1, width[0], endcap_width1, endcap_length1, endcap_extent1);
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endcap_shape2 = _shape_path(endcap2, last(width), endcap_width2, endcap_length2, endcap_extent2);
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endcap_color1 = first_defined([endcap_color1, endcap_color, dots_color, color]);
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endcap_color2 = first_defined([endcap_color2, endcap_color, dots_color, color]);
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joint_color = first_defined([joint_color, dots_color, color]);
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trim1 = width[0] * first_defined([
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trim1, trim,
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(endcap1=="arrow")? endcap_length1-0.01 :
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(endcap1=="arrow2")? endcap_length1*3/4 :
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0
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]);
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assert(is_num(trim1));
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trim2 = last(width) * first_defined([
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trim2, trim,
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(endcap2=="arrow")? endcap_length2-0.01 :
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(endcap2=="arrow2")? endcap_length2*3/4 :
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0
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]);
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assert(is_num(trim2));
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if (len(path) == 1) {
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if (len(path[0]) == 2) {
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translate(path[0]) circle(d=width[0]);
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} else {
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translate(path[0]) sphere(d=width[0]);
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paths = is_region(path)? path : [path];
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for (path = paths) {
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assert(is_list(path));
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if (len(path) > 1) {
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assert(is_path(path,[2,3]), "The path argument must be a list of 2D or 3D points, or a region.");
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}
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} else {
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pathcut = _path_cut_points(path, [trim1, path_length(path)-trim2], closed=false);
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pathcut_su = _cut_to_seg_u_form(pathcut,path);
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path2 = _path_cut_getpaths(path, pathcut, closed=false)[1];
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widths = _path_select(width, pathcut_su[0][0], pathcut_su[0][1], pathcut_su[1][0], pathcut_su[1][1]);
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start_vec = path[0] - path[1];
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end_vec = last(path) - select(path,-2);
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path = deduplicate( closed? close_path(path) : path );
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if (len(path[0]) == 2) {
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// Straight segments
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setcolor(color) {
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for (i = idx(path2,e=-2)) {
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seg = select(path2,i,i+1);
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delt = seg[1] - seg[0];
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translate(seg[0]) {
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rot(from=BACK,to=delt) {
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trapezoid(w1=widths[i], w2=widths[i+1], h=norm(delt), anchor=FRONT);
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assert(is_num(width) || (is_vector(width) && len(width)==len(path)));
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width = is_num(width)? [for (x=path) width] : width;
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assert(all([for (w=width) w>0]));
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endcap_shape1 = _shape_path(endcap1, width[0], endcap_width1, endcap_length1, endcap_extent1);
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endcap_shape2 = _shape_path(endcap2, last(width), endcap_width2, endcap_length2, endcap_extent2);
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trim1 = width[0] * first_defined([
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trim1, trim,
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(endcap1=="arrow")? endcap_length1-0.01 :
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(endcap1=="arrow2")? endcap_length1*3/4 :
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0
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]);
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assert(is_num(trim1));
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trim2 = last(width) * first_defined([
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trim2, trim,
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(endcap2=="arrow")? endcap_length2-0.01 :
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(endcap2=="arrow2")? endcap_length2*3/4 :
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0
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]);
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assert(is_num(trim2));
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if (len(path) == 1) {
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if (len(path[0]) == 2) {
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translate(path[0]) circle(d=width[0]);
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} else {
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translate(path[0]) sphere(d=width[0]);
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}
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} else {
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pathcut = _path_cut_points(path, [trim1, path_length(path)-trim2], closed=false);
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pathcut_su = _cut_to_seg_u_form(pathcut,path);
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path2 = _path_cut_getpaths(path, pathcut, closed=false)[1];
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widths = _path_select(width, pathcut_su[0][0], pathcut_su[0][1], pathcut_su[1][0], pathcut_su[1][1]);
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start_vec = path[0] - path[1];
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end_vec = last(path) - select(path,-2);
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if (len(path[0]) == 2) {
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// Straight segments
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setcolor(color) {
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for (i = idx(path2,e=-2)) {
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seg = select(path2,i,i+1);
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delt = seg[1] - seg[0];
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translate(seg[0]) {
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rot(from=BACK,to=delt) {
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trapezoid(w1=widths[i], w2=widths[i+1], h=norm(delt), anchor=FRONT);
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}
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}
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}
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}
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}
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// Joints
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setcolor(joint_color) {
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for (i = [1:1:len(path2)-2]) {
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$fn = quantup(segs(widths[i]/2),4);
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translate(path2[i]) {
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if (joints != undef) {
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joint_shape = _shape_path(
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joints, width[i],
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joint_width,
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joint_length,
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joint_extent
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);
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v1 = unit(path2[i] - path2[i-1]);
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v2 = unit(path2[i+1] - path2[i]);
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vec = unit((v1+v2)/2);
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mat = is_undef(joint_angle)
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? rot(from=BACK,to=v1)
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: zrot(joint_angle);
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multmatrix(mat) polygon(joint_shape);
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} else if (hull) {
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hull() {
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// Joints
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setcolor(joint_color) {
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for (i = [1:1:len(path2)-2]) {
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$fn = quantup(segs(widths[i]/2),4);
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translate(path2[i]) {
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if (joints != undef) {
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joint_shape = _shape_path(
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joints, width[i],
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joint_width,
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joint_length,
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joint_extent
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);
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v1 = unit(path2[i] - path2[i-1]);
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v2 = unit(path2[i+1] - path2[i]);
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vec = unit((v1+v2)/2);
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mat = is_undef(joint_angle)
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? rot(from=BACK,to=v1)
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: zrot(joint_angle);
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multmatrix(mat) polygon(joint_shape);
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} else if (hull) {
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hull() {
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rot(from=BACK, to=path2[i]-path2[i-1])
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circle(d=widths[i]);
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rot(from=BACK, to=path2[i+1]-path2[i])
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circle(d=widths[i]);
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}
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} else {
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rot(from=BACK, to=path2[i]-path2[i-1])
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circle(d=widths[i]);
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rot(from=BACK, to=path2[i+1]-path2[i])
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circle(d=widths[i]);
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}
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} else {
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rot(from=BACK, to=path2[i]-path2[i-1])
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circle(d=widths[i]);
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rot(from=BACK, to=path2[i+1]-path2[i])
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circle(d=widths[i]);
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}
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}
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}
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}
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// Endcap1
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setcolor(endcap_color1) {
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translate(path[0]) {
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mat = is_undef(endcap_angle1)? rot(from=BACK,to=start_vec) :
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zrot(endcap_angle1);
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multmatrix(mat) polygon(endcap_shape1);
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// Endcap1
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setcolor(endcap_color1) {
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translate(path[0]) {
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mat = is_undef(endcap_angle1)? rot(from=BACK,to=start_vec) :
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zrot(endcap_angle1);
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multmatrix(mat) polygon(endcap_shape1);
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}
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}
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}
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// Endcap2
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setcolor(endcap_color2) {
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translate(last(path)) {
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mat = is_undef(endcap_angle2)? rot(from=BACK,to=end_vec) :
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zrot(endcap_angle2);
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multmatrix(mat) polygon(endcap_shape2);
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// Endcap2
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setcolor(endcap_color2) {
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translate(last(path)) {
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mat = is_undef(endcap_angle2)? rot(from=BACK,to=end_vec) :
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zrot(endcap_angle2);
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multmatrix(mat) polygon(endcap_shape2);
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}
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}
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}
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} else {
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quatsums = q_cumulative([
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for (i = idx(path2,e=-2)) let(
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vec1 = i==0? UP : unit(path2[i]-path2[i-1], UP),
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vec2 = unit(path2[i+1]-path2[i], UP),
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axis = vector_axis(vec1,vec2),
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ang = vector_angle(vec1,vec2)
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) quat(axis,ang)
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]);
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rotmats = [for (q=quatsums) q_matrix4(q)];
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sides = [
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for (i = idx(path2,e=-2))
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quantup(segs(max(widths[i],widths[i+1])/2),4)
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];
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} else {
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quatsums = q_cumulative([
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for (i = idx(path2,e=-2)) let(
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vec1 = i==0? UP : unit(path2[i]-path2[i-1], UP),
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vec2 = unit(path2[i+1]-path2[i], UP),
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axis = vector_axis(vec1,vec2),
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ang = vector_angle(vec1,vec2)
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) quat(axis,ang)
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]);
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rotmats = [for (q=quatsums) q_matrix4(q)];
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sides = [
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for (i = idx(path2,e=-2))
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quantup(segs(max(widths[i],widths[i+1])/2),4)
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];
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// Straight segments
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setcolor(color) {
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for (i = idx(path2,e=-2)) {
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dist = norm(path2[i+1] - path2[i]);
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w1 = widths[i]/2;
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w2 = widths[i+1]/2;
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$fn = sides[i];
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translate(path2[i]) {
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multmatrix(rotmats[i]) {
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cylinder(r1=w1, r2=w2, h=dist, center=false);
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// Straight segments
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setcolor(color) {
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for (i = idx(path2,e=-2)) {
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dist = norm(path2[i+1] - path2[i]);
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w1 = widths[i]/2;
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w2 = widths[i+1]/2;
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$fn = sides[i];
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translate(path2[i]) {
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multmatrix(rotmats[i]) {
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cylinder(r1=w1, r2=w2, h=dist, center=false);
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}
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}
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}
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}
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}
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// Joints
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setcolor(joint_color) {
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for (i = [1:1:len(path2)-2]) {
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$fn = sides[i];
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translate(path2[i]) {
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if (joints != undef) {
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joint_shape = _shape_path(
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joints, width[i],
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joint_width,
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joint_length,
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joint_extent
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);
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multmatrix(rotmats[i] * xrot(180)) {
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$fn = sides[i];
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if (is_undef(joint_angle)) {
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rotate_extrude(convexity=convexity) {
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right_half(planar=true) {
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polygon(joint_shape);
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// Joints
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setcolor(joint_color) {
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for (i = [1:1:len(path2)-2]) {
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$fn = sides[i];
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translate(path2[i]) {
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if (joints != undef) {
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joint_shape = _shape_path(
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joints, width[i],
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joint_width,
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joint_length,
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joint_extent
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);
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multmatrix(rotmats[i] * xrot(180)) {
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$fn = sides[i];
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if (is_undef(joint_angle)) {
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rotate_extrude(convexity=convexity) {
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right_half(planar=true) {
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polygon(joint_shape);
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}
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}
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}
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} else {
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rotate([90,0,joint_angle]) {
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linear_extrude(height=max(widths[i],0.001), center=true, convexity=convexity) {
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polygon(joint_shape);
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} else {
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rotate([90,0,joint_angle]) {
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linear_extrude(height=max(widths[i],0.001), center=true, convexity=convexity) {
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polygon(joint_shape);
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}
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}
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}
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}
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}
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} else if (hull) {
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hull(){
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} else if (hull) {
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hull(){
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multmatrix(rotmats[i]) {
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sphere(d=widths[i],style="aligned");
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}
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multmatrix(rotmats[i-1]) {
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sphere(d=widths[i],style="aligned");
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}
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}
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} else {
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multmatrix(rotmats[i]) {
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sphere(d=widths[i],style="aligned");
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}
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@ -423,55 +436,48 @@ module stroke(
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sphere(d=widths[i],style="aligned");
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}
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}
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} else {
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multmatrix(rotmats[i]) {
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sphere(d=widths[i],style="aligned");
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}
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multmatrix(rotmats[i-1]) {
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sphere(d=widths[i],style="aligned");
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}
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}
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}
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}
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}
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// Endcap1
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setcolor(endcap_color1) {
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translate(path[0]) {
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multmatrix(rotmats[0] * xrot(180)) {
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$fn = sides[0];
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if (is_undef(endcap_angle1)) {
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rotate_extrude(convexity=convexity) {
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right_half(planar=true) {
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polygon(endcap_shape1);
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// Endcap1
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setcolor(endcap_color1) {
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translate(path[0]) {
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multmatrix(rotmats[0] * xrot(180)) {
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$fn = sides[0];
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if (is_undef(endcap_angle1)) {
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rotate_extrude(convexity=convexity) {
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right_half(planar=true) {
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polygon(endcap_shape1);
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}
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}
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}
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} else {
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rotate([90,0,endcap_angle1]) {
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linear_extrude(height=max(widths[0],0.001), center=true, convexity=convexity) {
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polygon(endcap_shape1);
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} else {
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rotate([90,0,endcap_angle1]) {
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linear_extrude(height=max(widths[0],0.001), center=true, convexity=convexity) {
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polygon(endcap_shape1);
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}
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}
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}
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}
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}
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}
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}
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// Endcap2
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setcolor(endcap_color2) {
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translate(last(path)) {
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multmatrix(last(rotmats)) {
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$fn = last(sides);
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if (is_undef(endcap_angle2)) {
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rotate_extrude(convexity=convexity) {
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||||
right_half(planar=true) {
|
||||
polygon(endcap_shape2);
|
||||
// Endcap2
|
||||
setcolor(endcap_color2) {
|
||||
translate(last(path)) {
|
||||
multmatrix(last(rotmats)) {
|
||||
$fn = last(sides);
|
||||
if (is_undef(endcap_angle2)) {
|
||||
rotate_extrude(convexity=convexity) {
|
||||
right_half(planar=true) {
|
||||
polygon(endcap_shape2);
|
||||
}
|
||||
}
|
||||
}
|
||||
} else {
|
||||
rotate([90,0,endcap_angle2]) {
|
||||
linear_extrude(height=max(last(widths),0.001), center=true, convexity=convexity) {
|
||||
polygon(endcap_shape2);
|
||||
} else {
|
||||
rotate([90,0,endcap_angle2]) {
|
||||
linear_extrude(height=max(last(widths),0.001), center=true, convexity=convexity) {
|
||||
polygon(endcap_shape2);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue