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https://github.com/BelfrySCAD/BOSL2.git
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Add shift= to linear_sweep()
This commit is contained in:
Garth Minette
parent
e4bac06df7
commit
f87b5b8c2f
1 changed files with 155 additions and 49 deletions
204
skin.scad
204
skin.scad
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@ -517,20 +517,25 @@ function skin(profiles, slices, refine=1, method="direct", sampling, caps, close
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// a custom point location.
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// Arguments:
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// region = The 2D [Region](regions.scad) or polygon that is to be extruded.
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// height = The height to extrude the region. Default: 1
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// ---
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// h | height = The height to extrude the region. Default: 1
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// center = If true, the created polyhedron will be vertically centered. If false, it will be extruded upwards from the XY plane. Default: `false`
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// ---
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// twist = The number of degrees to rotate the top of the shape, clockwise around the Z axis, relative to the bottom. Default: 0
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// scale = The amount to scale the top of the shape, in the X and Y directions, relative to the size of the bottom. Default: 1
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// shift = The amount to shift the top of the shape, in the X and Y directions, relative to the position of the bottom. Default: [0,0]
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// slices = The number of slices to divide the shape into along the Z axis, to allow refinement of detail, especially when working with a twist. Default: `twist/5`
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// maxseg = If given, then any long segments of the region will be subdivided to be shorter than this length. This can refine twisting flat faces a lot. Default: `undef` (no subsampling)
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// twist = The number of degrees to rotate the shape clockwise around the Z axis, as it rises from bottom to top. Default: 0
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// scale = The amount to scale the shape, from bottom to top. Default: 1
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// style = The style to use when triangulating the surface of the object. Valid values are `"default"`, `"alt"`, or `"quincunx"`.
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// convexity = Max number of surfaces any single ray could pass through. Module use only.
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// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `"origin"`
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// atype = Set to "hull" or "intersect" to select anchor type. Default: "hull"
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// cp = Centerpoint for determining intersection anchors or centering the shape. Determintes the base of the anchor vector. Can be "centroid", "mean", "box" or a 3D point. Default: "centroid"
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// atype = Set to "hull" or "intersect" to select anchor type. Default: "hull"
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// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `"origin"`
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// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#subsection-spin). Default: `0`
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// orient = Vector to rotate top towards, after spin. See [orient](attachments.scad#subsection-orient). Default: `UP`
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// Extra Anchors:
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// centroid_top = The centroid of the top of the shape, oriented UP.
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// centroid = The centroid of the center of the shape, oriented UP.
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// centroid_bot = The centroid of the bottom of the shape, oriented DOWN.
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// Example: Extruding a Compound Region.
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// rgn1 = [for (d=[10:10:60]) circle(d=d,$fn=8)];
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// rgn2 = [square(30,center=false)];
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@ -538,52 +543,86 @@ function skin(profiles, slices, refine=1, method="direct", sampling, caps, close
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// mrgn = union(rgn1,rgn2);
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// orgn = difference(mrgn,rgn3);
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// linear_sweep(orgn,height=20,convexity=16);
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// Example: With Twist, Scale, Slices and Maxseg.
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// Example: With Twist, Scale, Shift, Slices and Maxseg.
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// rgn1 = [for (d=[10:10:60]) circle(d=d,$fn=8)];
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// rgn2 = [square(30,center=false)];
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// rgn3 = [for (size=[10:10:20]) move([15,15],p=square(size=size, center=true))];
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// rgn3 = [
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// for (size=[10:10:20])
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// apply(
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// move([15,15]),
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// square(size=size, center=true)
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// )
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// ];
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// mrgn = union(rgn1,rgn2);
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// orgn = difference(mrgn,rgn3);
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// linear_sweep(orgn,height=50,maxseg=2,slices=40,twist=180,scale=0.5,convexity=16);
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// linear_sweep(
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// orgn, height=50, maxseg=2, slices=40,
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// twist=90, scale=0.5, shift=[10,5],
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// convexity=16
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// );
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// Example: Anchors on an Extruded Region
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// rgn1 = [for (d=[10:10:60]) circle(d=d,$fn=8)];
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// rgn2 = [square(30,center=false)];
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// rgn3 = [for (size=[10:10:20]) move([15,15],p=square(size=size, center=true))];
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// rgn3 = [
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// for (size=[10:10:20])
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// apply(
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// move([15,15]),
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// rect(size=size)
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// )
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// ];
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// mrgn = union(rgn1,rgn2);
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// orgn = difference(mrgn,rgn3);
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// linear_sweep(orgn,height=20,convexity=16) show_anchors();
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module linear_sweep(region, height=1, center, twist=0, scale=1, slices, maxseg, style="default", convexity,
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spin=0, orient=UP, cp="centroid", anchor="origin", atype="hull") {
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// linear_sweep(orgn,height=20,convexity=16)
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// show_anchors();
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module linear_sweep(
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region, height, center,
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twist=0, scale=1, shift=[0,0],
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slices, maxseg, style="default", convexity,
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cp="centroid", atype="hull", h,
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anchor, spin=0, orient=UP
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) {
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h = first_defined([h, height, 1]);
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region = force_region(region);
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dummy=assert(is_region(region),"Input is not a region");
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anchor = center ? "zcenter" : anchor;
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anchors = [named_anchor("zcenter", [0,0,height/2], UP)];
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anchor = get_anchor(anchor, center, BOT, BOT);
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vnf = linear_sweep(
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region, height=height,
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twist=twist, scale=scale,
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slices=slices, maxseg=maxseg,
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style=style
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region, height=h,
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twist=twist, scale=scale, shift=shift,
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slices=slices, maxseg=maxseg, style=style
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);
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attachable(anchor,spin,orient, cp=cp, region=region, h=height, extent=atype=="hull", anchors=anchors) {
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cent = centroid(path);
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anchors = [
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named_anchor("centroid_top", point3d(cent, h/2), UP),
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named_anchor("centroid", point3d(cent), UP),
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named_anchor("centroid_bot", point3d(cent,-h/2), DOWN)
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];
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geom = atype=="hull"? attach_geom(cp=cp, region=region, h=h, extent=true, anchors=anchors) :
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atype=="intersect"? attach_geom(cp=cp, region=region, h=h, extent=false, anchors=anchors) :
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assert(in_list(atype, ["hull", "intersect"]));
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attachable(anchor,spin,orient, geom=geom) {
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vnf_polyhedron(vnf, convexity=convexity);
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children();
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}
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}
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function linear_sweep(region, height=1, center, twist=0, scale=1, slices,
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maxseg, style="default", cp="centroid", atype="hull", anchor, spin=0, orient=UP) =
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let(
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function linear_sweep(
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region, height, center,
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twist=0, scale=1, shift=[0,0],
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slices, maxseg, style="default",
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cp="centroid", atype="hull", h,
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anchor, spin=0, orient=UP
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) = let(
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region = force_region(region)
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)
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assert(is_region(region), "Input is not a region")
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assert(is_region(region), "Input is not a region or polygon.")
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let(
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anchor = center ? "zcenter" : anchor,
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anchors = [named_anchor("zcenter", [0,0,height/2], UP)],
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h = first_defined([h, height, 1]),
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anchor = get_anchor(anchor, center, BOT, BOT),
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regions = region_parts(region),
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slices = default(slices, floor(twist/5+1)),
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step = twist/slices,
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hstep = height/slices,
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slices = default(slices, ceil(abs(twist)/5)),
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scale = is_num(scale)? [scale,scale] : point2d(scale),
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topmat = move(shift) * scale(scale) * rot(-twist),
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trgns = [
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for (rgn=regions) [
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for (path=rgn) let(
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@ -593,8 +632,7 @@ function linear_sweep(region, height=1, center, twist=0, scale=1, slices,
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let(steps=ceil(norm(seg.y-seg.x)/maxseg))
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lerpn(seg.x, seg.y, steps, false)
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]
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)
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rot(twist, p=scale([scale,scale],p=path))
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) apply(topmat, path)
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]
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],
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vnf = vnf_join([
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@ -608,16 +646,27 @@ function linear_sweep(region, height=1, center, twist=0, scale=1, slices,
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],
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verts = [
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for (i=[0:1:slices]) let(
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sc = lerp(1, scale, i/slices),
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ang = i * step,
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h = i * hstep //- height/2
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) scale([sc,sc,1], p=rot(ang, p=path3d(path,h)))
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u = i/slices,
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scl = lerp([1,1], scale, u),
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ang = lerp(0, -twist, u),
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off = lerp([0,0,0], point3d(shift,h), u),
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m = move(off) * scale(scl) * rot(ang)
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) apply(m, path3d(path))
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]
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) vnf_vertex_array(verts, caps=false, col_wrap=true, style=style),
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for (rgn = regions) vnf_from_region(rgn, ident(4), reverse=true),
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for (rgn = trgns) vnf_from_region(rgn, up(height), reverse=false)
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])
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) reorient(anchor,spin,orient, cp=cp, vnf=vnf, extent=atype=="hull", p=vnf, anchors=anchors);
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for (rgn = trgns) vnf_from_region(rgn, up(h), reverse=false)
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]),
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cent = centroid(path),
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anchors = [
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named_anchor("centroid_top", point3d(cent, h/2), UP),
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named_anchor("centroid", point3d(cent), UP),
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named_anchor("centroid_bot", point3d(cent,-h/2), DOWN)
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],
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geom = atype=="hull"? attach_geom(cp=cp, region=region, h=h, extent=true, anchors=anchors) :
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atype=="intersect"? attach_geom(cp=cp, region=region, h=h, extent=false, anchors=anchors) :
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assert(in_list(atype, ["hull", "intersect"]))
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) reorient(anchor,spin,orient, geom=geom, p=vnf);
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@ -2040,6 +2089,7 @@ function associate_vertices(polygons, split, curpoly=0) =
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// Section: Texturing
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// DefineHeader(Table;Headers=Texture Name|Description): Texture Values
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function _get_texture(tex,n,m) =
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tex=="ribs"? [[1,0]] :
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@ -2086,6 +2136,22 @@ function _get_texture(tex,n,m) =
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// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
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// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#subsection-spin). Default: `0`
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// orient = Vector to rotate top towards, after spin. See [orient](attachments.scad#subsection-orient). Default: `UP`
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// Texture Values:
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// "ribs" = Vertically aligned triangular ribs.
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// "trunc_ribs" = Like "ribs" but with flat rib tips.
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// "wave_ribs" = Vertically aligned wavy ribs.
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// "diamonds" = Diamond shapes with tips aligned with the axes. Useful for knurling.
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// "pyramids" = Pyramids shapes with flat sides aligned with the axes. Also useful for knurling.
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// "trunc_pyramids" = Like "pyramids" but with flattened tips.
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// "dimpled_pyramids" = Like "trunc_pyramids" but with dimples in the flat tips.
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// "hills" = Wavy hills and valleys,
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// "waves" = A raised sine-wave patten, oriented vertically.
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// "dots" = Raised small round bumps.
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// "cones" = Raised conical spikes.
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// Extra Anchors:
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// centroid_top = The centroid of the top of the shape, oriented UP.
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// centroid = The centroid of the center of the shape, oriented UP.
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// centroid_bot = The centroid of the bottom of the shape, oriented DOWN.
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// See Also: textured_revolution(), textured_cylinder()
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// Example: "ribs" texture.
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// path = glued_circles(r=15, spread=40, tangent=45);
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@ -2135,6 +2201,10 @@ function _get_texture(tex,n,m) =
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// Example: "cones" texture.
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// path = glued_circles(r=15, spread=40, tangent=45);
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// textured_linear_sweep(path, "cones", tex_size=[5,5], h=40, style="concave");
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// Example: User defined texture.
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// path = ellipse(r=[20,10]);
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// texture = [for (i=[0:9]) [ for (j=[0:9]) 1/max(0.5,norm([i,j]-[5,5])) ]];
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// textured_linear_sweep(path, texture, tex_size=[5,5], h=40, style="min_edge", anchor=BOT);
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// Example: As Function
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// path = glued_circles(r=15, spread=40, tangent=45);
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// vnf = textured_linear_sweep(path, h=40, "trunc_pyramids", tex_size=[5,5], tscale=1, style="convex");
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@ -2189,8 +2259,14 @@ function textured_linear_sweep(
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vnf = vnf_vertex_array(
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tiles, caps=caps, style=style, reverse=reverse,
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col_wrap=col_wrap, row_wrap=false
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)
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) reorient(anchor,spin,orient, vnf=vnf, extent=true, p=vnf);
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),
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cent = centroid(path),
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anchors = [
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named_anchor("centroid_top", point3d(cent, h/2), UP),
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named_anchor("centroid", point3d(cent), UP),
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named_anchor("centroid_bot", point3d(cent,-h/2), DOWN)
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]
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) reorient(anchor,spin,orient, vnf=vnf, extent=true, anchors=anchors, p=vnf);
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module textured_linear_sweep(
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@ -2211,7 +2287,13 @@ module textured_linear_sweep(
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style=style, reverse=reverse,
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anchor=CENTER, spin=0, orient=UP
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);
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attachable(anchor,spin,orient, vnf=vnf, extent=true) {
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cent = centroid(path);
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anchors = [
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named_anchor("centroid_top", point3d(cent, h/2), UP),
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named_anchor("centroid", point3d(cent), UP),
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named_anchor("centroid_bot", point3d(cent,-h/2), DOWN)
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];
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attachable(anchor,spin,orient, vnf=vnf, extent=true, anchors=anchors) {
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vnf_polyhedron(vnf, convexity=convexity);
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children();
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}
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@ -2246,6 +2328,18 @@ module textured_linear_sweep(
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// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
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// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#subsection-spin). Default: `0`
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// orient = Vector to rotate top towards, after spin. See [orient](attachments.scad#subsection-orient). Default: `UP`
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// Texture Values:
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// "ribs" = Vertically aligned triangular ribs.
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// "trunc_ribs" = Like "ribs" but with flat rib tips.
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// "wave_ribs" = Vertically aligned wavy ribs.
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// "diamonds" = Diamond shapes with tips aligned with the axes. Useful for knurling.
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// "pyramids" = Pyramids shapes with flat sides aligned with the axes. Also useful for knurling.
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// "trunc_pyramids" = Like "pyramids" but with flattened tips.
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// "dimpled_pyramids" = Like "trunc_pyramids" but with dimples in the flat tips.
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// "hills" = Wavy hills and valleys,
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// "waves" = A raised sine-wave patten, oriented vertically.
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// "dots" = Raised small round bumps.
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// "cones" = Raised conical spikes.
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// See Also: textured_linear_sweep(), textured_cylinder()
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// Example:
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// include <BOSL2/beziers.scad>
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@ -2379,6 +2473,18 @@ module textured_revolution(
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// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
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// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#subsection-spin). Default: `0`
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// orient = Vector to rotate top towards, after spin. See [orient](attachments.scad#subsection-orient). Default: `UP`
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// Texture Values:
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// "ribs" = Vertically aligned triangular ribs.
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// "trunc_ribs" = Like "ribs" but with flat rib tips.
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// "wave_ribs" = Vertically aligned wavy ribs.
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// "diamonds" = Diamond shapes with tips aligned with the axes. Useful for knurling.
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// "pyramids" = Pyramids shapes with flat sides aligned with the axes. Also useful for knurling.
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// "trunc_pyramids" = Like "pyramids" but with flattened tips.
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// "dimpled_pyramids" = Like "trunc_pyramids" but with dimples in the flat tips.
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// "hills" = Wavy hills and valleys,
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// "waves" = A raised sine-wave patten, oriented vertically.
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// "dots" = Raised small round bumps.
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// "cones" = Raised conical spikes.
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// See Also: textured_linear_sweep(), textured_revolution()
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// Examples:
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// textured_cylinder(h=40, r=20, texture="diamonds", tex_size=[5,5]);
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@ -2386,7 +2492,7 @@ module textured_revolution(
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// textured_cylinder(h=40, r1=20, r2=15, texture="trunc_pyramids", tex_size=[5,5], chamfer=5, style="convex");
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// textured_cylinder(h=40, r1=20, r2=15, texture="dots", tex_size=[5,5], rounding=8, style="convex");
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function textured_cylinder(
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h=20, r=100, texture, tex_size=[5,5], counts,
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h, r, texture, tex_size=[1,1], counts,
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tscale=1, inset=false, rot=false,
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caps=true, style="min_edge",
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reverse=false, shift=[0,0],
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@ -2395,9 +2501,9 @@ function textured_cylinder(
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rounding, rounding1, rounding2
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) =
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let(
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h = first_defined([h, l]),
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r1 = get_radius(r1=r1, r=r, d1=d1, d=d),
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r2 = get_radius(r1=r2, r=r, d1=d2, d=d),
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h = first_defined([h, l, 1]),
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r1 = get_radius(r1=r1, r=r, d1=d1, d=d, dflt=1),
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r2 = get_radius(r1=r2, r=r, d1=d2, d=d, dflt=1),
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chamf1 = first_defined([chamfer1, chamfer]),
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chamf2 = first_defined([chamfer2, chamfer]),
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round1 = first_defined([rounding1, rounding]),
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@ -2421,7 +2527,7 @@ function textured_cylinder(
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module textured_cylinder(
|
||||
texture, tex_size=[5,5], h=20, r=50,
|
||||
h, r, texture, tex_size=[1,1],
|
||||
counts, tscale=1, inset=false, rot=false,
|
||||
style="min_edge", reverse=false, shift=[0,0],
|
||||
l, r1, r2, d, d1, d2,
|
||||
|
|
@ -2430,9 +2536,9 @@ module textured_cylinder(
|
|||
convexity=10,
|
||||
anchor=CENTER, spin=0, orient=UP
|
||||
) {
|
||||
h = first_defined([h, l]);
|
||||
r1 = get_radius(r1=r1, r=r, d1=d1, d=d);
|
||||
r2 = get_radius(r1=r2, r=r, d1=d2, d=d);
|
||||
h = first_defined([h, l, 1]);
|
||||
r1 = get_radius(r1=r1, r=r, d1=d1, d=d, dflt=1);
|
||||
r2 = get_radius(r1=r2, r=r, d1=d2, d=d, dflt=1);
|
||||
chamf1 = first_defined([chamfer1, chamfer]);
|
||||
chamf2 = first_defined([chamfer2, chamfer]);
|
||||
round1 = first_defined([rounding1, rounding]);
|
||||
|
|
|
|||
Loading…
Reference in a new issue