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Added generic_airplane(), show_transform_list()
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Revar Desmera
parent
2f5bf86f92
commit
fdac4545e8
2 changed files with 131 additions and 2 deletions
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@ -3587,7 +3587,7 @@ module show_anchors(s=10, std=true, custom=true) {
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// Synopsis: Shows a 3d anchor orientation arrow.
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// SynTags: Geom
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// Topics: Attachments
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// See Also: anchor_arrow2d(), show_anchors(), expose_anchors(), frame_ref()
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// See Also: anchor_arrow2d(), show_anchors(), expose_anchors(), frame_ref(), generic_airplane()
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// Usage:
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// anchor_arrow([s], [color], [flag], [anchor=], [orient=], [spin=]) [ATTACHMENTS];
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// Description:
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@ -3628,7 +3628,7 @@ module anchor_arrow(s=10, color=[0.333,0.333,1], flag=true, $tag="anchor-arrow",
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// Topics: Attachments
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// See Also: anchor_arrow(), show_anchors(), expose_anchors(), frame_ref()
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// Usage:
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// anchor_arrow2d([s], [color], [flag]);
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// anchor_arrow2d([s], [color]);
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// Description:
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// Show an anchor orientation arrow.
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// Arguments:
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@ -3668,6 +3668,90 @@ module expose_anchors(opacity=0.2) {
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// Module: show_transform_list()
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// Synopsis: Shows a list of transforms and how they connect.
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// SynTags: Geom
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// Topics: Attachments
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// See Also: generic_airplane(), anchor_arrow(), show_anchors(), expose_anchors(), frame_ref()
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// Usage:
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// show_transform_list(tlist, [s]);
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// show_transform_list(tlist) {CHILDREN};
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// Description:
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// Given a list of transformation matrices, shows the position and orientation of each one.
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// A line is drawn from each transform position to the next one, and an orientation indicator is
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// shown at each position. If a child is passed, that child will be used as the orientation indicator.
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// By default, a {{generic_airplane()}} is used as the orientation indicator.
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// Arguments:
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// s = Length of the {{generic_airplane()}}. Default: 5
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// Example:
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// tlist = [
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// zrot(90),
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// zrot(90) * fwd(30) * zrot(30),
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// zrot(90) * fwd(30) * zrot(30) *
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// fwd(35) * xrot(-30),
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// zrot(90) * fwd(30) * zrot(30) *
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// fwd(35) * xrot(-30) * fwd(40) * yrot(15),
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// ];
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// show_transform_list(tlist, s=20);
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// Example:
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// tlist = [
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// zrot(90),
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// zrot(90) * fwd(30) * zrot(30),
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// zrot(90) * fwd(30) * zrot(30) *
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// fwd(35) * xrot(-30),
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// zrot(90) * fwd(30) * zrot(30) *
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// fwd(35) * xrot(-30) * fwd(40) * yrot(15),
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// ];
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// show_transform_list(tlist) frame_ref();
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module show_transform_list(tlist, s=5) {
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path = [for (m = tlist) apply(m, [0,0,0])];
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stroke(path, width=s*0.03);
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for (m = tlist) {
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multmatrix(m) {
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if ($children>0) children();
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else generic_airplane(s=s);
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}
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}
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}
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// Module: generic_airplane()
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// Synopsis: Shows a generic airplane shape, useful for viewing orientations.
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// SynTags: Geom
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// Topics: Attachments
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// See Also: anchor_arrow(), show_anchors(), expose_anchors(), frame_ref()
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// Usage:
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// generic_airplane([s]);
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// Description:
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// Creates a generic airplane shape. This can be useful for viewing the orientation of 3D transforms.
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// Arguments:
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// s = Length of the airplane. Default: 5
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// Example:
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// generic_airplane(s=20);
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module generic_airplane(s=5) {
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$fn = max(segs(0.05*s), 12);
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color("#ddd")
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fwd(s*0.05)
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ycyl(l=0.7*s, d=0.1*s) {
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attach(FWD) top_half(s=s) zscale(2) sphere(d=0.1*s);
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attach(BACK,FWD) ycyl(l=0.2*s, d1=0.1*s, d2=0.05*s) {
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yrot_copies([-90,0,90])
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prismoid(s*[0.01,0.2], s*[0.01,0.05],
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h=0.2*s, shift=s*[0,0.15], anchor=BOT);
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}
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yrot_copies([-90,90])
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prismoid(s*[0.01,0.2], s*[0.01,0.05],
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h=0.5*s, shift=s*[0,0.15], anchor=BOT);
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}
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color("#777") zcopies(0.1*s) sphere(d=0.02*s);
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back(0.09*s) {
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color("#f00") right(0.46*s) sphere(d=0.04*s);
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color("#0f0") left(0.46*s) sphere(d=0.04*s);
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}
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}
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// Module: frame_ref()
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// Synopsis: Shows axis orientation arrows.
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// SynTags: Geom
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45
examples/spring_handle.scad
Normal file
45
examples/spring_handle.scad
Normal file
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@ -0,0 +1,45 @@
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include <BOSL2/std.scad>
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$fn = 45;
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wire_d = 2;
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spring_l = 100;
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spring_d = 20;
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rod_d = 10;
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loops = 17;
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tight_loops=3;
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tpart = tight_loops/loops;
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lpart = wire_d * tight_loops / 100;
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r_table = [
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[0.00, 0],
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[0+tpart, 0],
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[0.5, 1],
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[1-tpart, 0],
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[1.00, 0],
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];
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l_table = [
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[0.00, -0.50],
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[0+tpart, -0.5+lpart],
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[1-tpart, +0.5-lpart],
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[1.00, +0.50],
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];
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lsteps = 45;
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tsteps = loops * lsteps;
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path = [
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for (i = [0:1:tsteps])
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let(
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u = i / tsteps,
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a = u * 360 * loops,
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r = lookup(u, r_table) * spring_d/2 + wire_d/2 + rod_d/2,
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z = lookup(u, l_table) * spring_l,
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pt = [r*cos(a), r*sin(a), z]
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) pt
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];
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yrot(90) {
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color("lightblue")
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path_sweep(circle(d=wire_d), path);
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cylinder(d=rod_d, h=spring_l+10, center=true);
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}
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// vim: expandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap
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