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fix region anchoring bug

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Adrian Mariano 2025-08-30 08:59:42 -04:00
parent 36907f7b49
commit a0ec133853
2 changed files with 16 additions and 26 deletions
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4
attachments.scad
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@ -4381,9 +4381,9 @@ function _find_anchor(anchor, geom)=
path = rgn[indexed_pts[index[0]][0]],
ctr = indexed_pts[index[0]][1],
corner = select(path, [ctr-1,ctr,ctr+1]),
normal = unit(unit(corner[0]-corner[1])+unit(corner[2]-corner[1]))
normal = unit(line_normal(select(corner,0,1))+line_normal(select(corner,1,2)))
)
[is_polygon_clockwise(path) ? -normal : normal, vector_angle(corner)]
[is_polygon_clockwise(path) ? normal : -normal, vector_angle(corner)]
) [anchor, pos, dir[0], 0, if(len(dir)>1) [["corner_angle",dir[1]]]]
) : type=="extrusion_extent" || type=="extrusion_isect" ? ( // extruded region
assert(in_list(anchor.z,[-1,0,1]), "\nThe Z component of an anchor for an extruded 2D shape must be -1, 0, or 1.")

38
rounding.scad
View file

@ -4347,24 +4347,27 @@ function _prism_fillet_prism(name, basepoly, bot, top, d, k, N, overlap, uniform
// cyl(d=40,h=50,$fn=32)
// tag("remove") prism_connector(circ,parent(),LEFT,parent(),RIGHT,
// shift1=-8,shift2=7,fillet=6,overlap=3);
// Example(3D,NoAxes,VPT=[1.42957,2.47871,-3.63111],VPR=[40.3,0,29.2],VPD=263.435): You can also use interior connectors to bridge across holes as shown in this example. Note also that you can apply operations like rotation to the connector.
// Example(3D,NoAxes,VPT=[1.42957,2.47871,-3.63111],VPR=[40.3,0,29.2],VPD=263.435): Using interior connectors to bridge across holes. You can apply operations like rotation to the connector.
// circ = circle(r=3, $fn=64);
// diff()
// highlight_this() cyl(d=85,h=39)
// tag("remove") cyl(d=75,h=40,$fn=128)
// tag("keep") zrot_copies(n=4)
// prism_connector(circ,parent(),[-1,.2],parent(),[1,.4],shift1=12,shift2=-12,fillet=2);
// Example(3D,Med,NoAxes): You can also make a connection between the "inside" part of a tube and the outside of a tube
// diff()
// tube(or=10,wall=2,h=10,rounding=1,$fn=40)
// let(outside=parent())
// attach_part("inside")
// tag("remove")
// for(where = [LEFT,RIGHT,FRONT,BACK])
// prism_connector(circle(3,$fn=100),
// Example(3D,Med,NoAxes): A connection between the "inside" part of a tube and the outside of a tube
// $fn=64;
// diff()
// tube(or=10,wall=2,h=10,rounding=1,$fn=40)
// let(outside=parent())
// attach_part("inside")
// let(inside=parent())
// for(angle = [0:120:359])
// let(where = polar_to_xy(1,angle))
// tag("remove")
// prism_connector(circle(3,$fn=32),
// outside, where,
// parent(), where,
// fillet=1);
// inside, where,
// fillet=0.5);
// Example(3D,Med,NoAxes,VPT=[1.42957,2.47871,-3.63111],VPR=[40.3,0,29.2],VPD=263.435): Here we use the {{zrot_copies()}} distributor to create copies of objects and create a connector to a non-symmetrically placed object. All all the connectors are different because we change the anchor point that goes with the second description.
// circ = circle(r=3, $fn=64);
// right(4)up(25)xrot(15) cyl(r=20,h=30,circum=true,$fn=64) let(cyl=parent())
@ -4443,19 +4446,6 @@ function _prism_fillet_prism(name, basepoly, bot, top, d, k, N, overlap, uniform
// leftpipe, RIGHT, rightpipe, LEFT, fillet=fillet,
// shift1=-shift_fix,shift2=shift+shift_fix);
// }
// Example(3D,NoAxes): Here we use attachable parts of the tube to create a connector that makes a hole from the outside to the inside of the tube
// $fn=64;
// diff()
// tube(or=10,wall=2,h=10,rounding=1)
// let(outside=parent())
// attach_part("inside")
// let(inside=parent())
// for(angle = [0:120:359])
// let(where = polar_to_xy(1,angle))
// tag("remove")
// prism_connector(circle(3,$fn=32),
// outside, where, parent(), where,
// fillet=0.5);
// Get the object type from the specified geometry and anchor point