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Attachments tutorial bugfixes.

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This commit is contained in:
Garth Minette 2021-04-26 15:52:23 -07:00
parent b91c594141
commit 165a454ff9
2 changed files with 7 additions and 4 deletions
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5
scripts/tutorial_gen.py
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@ -73,7 +73,10 @@ def processFile(infile, outfile=None, imgroot=""):
elif in_script: elif in_script:
if line == "```": if line == "```":
in_script = False in_script = False
imgfile = os.path.join(imgroot, "{}_{}.png".format(fileroot, imgnum)) fext = "png"
if any(x in extyp for x in ("Anim", "Spin")):
fext = "gif"
imgfile = os.path.join(imgroot, "{}_{}.{}".format(fileroot, imgnum, fext))
imgmgr.new_request( imgmgr.new_request(
fileroot+".md", linenum, fileroot+".md", linenum,
imgfile, script, extyp, imgfile, script, extyp,

6
tutorials/Attachments.md
View file

@ -611,7 +611,7 @@ spikeball(r=50, scale=[0.75,1,1.5]);
If the shape just doesn't fit into any of the above categories, and you constructed it as a If the shape just doesn't fit into any of the above categories, and you constructed it as a
[VNF](vnf.scad), you can use the VNF itself to describe the geometry with the `vnf=` argument. [VNF](vnf.scad), you can use the VNF itself to describe the geometry with the `vnf=` argument.
There are two variations to how anchoring can work for VNFs. When `extents=true`, (the default) There are two variations to how anchoring can work for VNFs. When `extent=true`, (the default)
then a plane is projected out from the origin, perpendicularly in the direction of the anchor, then a plane is projected out from the origin, perpendicularly in the direction of the anchor,
to the furthest distance that intersects with the VNF shape. The anchorpoint is then the to the furthest distance that intersects with the VNF shape. The anchorpoint is then the
center of the points that still intersect that plane. center of the points that still intersect that plane.
@ -648,7 +648,7 @@ stellate_cube(25) {
} }
``` ```
When `extents=false`, then the anchorpoint will be the furthest intersection of the VNF with When `extent=false`, then the anchorpoint will be the furthest intersection of the VNF with
the anchor ray from the origin. The orientation of the anchorpoint will be the normal of the the anchor ray from the origin. The orientation of the anchorpoint will be the normal of the
face at the intersection. If the intersection is at an edge or corner, then the orientation face at the intersection. If the intersection is at an edge or corner, then the orientation
will bisect the angles between the faces. will bisect the angles between the faces.
@ -672,7 +672,7 @@ module stellate_cube(s=100, anchor=CENTER, spin=0, orient=UP) {
[9,10,13], [10,11,13], [11,12,13], [12,9,13] [9,10,13], [10,11,13], [11,12,13], [12,9,13]
]; ];
vnf = [verts, faces]; vnf = [verts, faces];
attachable(anchor,spin,orient, vnf=vnf, extents=false) { attachable(anchor,spin,orient, vnf=vnf, extent=false) {
vnf_polyhedron(vnf); vnf_polyhedron(vnf);
children(); children();
} }