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https://github.com/revarbat/BOSL2.git
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Added Extruded Path geometry to attachable() and reorient().
This commit is contained in:
Garth Minette
parent
c43423829b
commit
11b4151f74
118
attachments.scad
118
attachments.scad
@ -112,11 +112,13 @@ function anchorpt(name, pos=[0,0,0], orient=UP, spin=0) = [name, pos, orient, sp
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// Usage: Cubical/Prismoidal Geometry
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// geom = attach_geom(size=, [size2=], [shift=], ...);
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// Usage: Cylindrical Geometry
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// geom = attach_geom(r=|d=, l=, [axis=], ...);
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// geom = attach_geom(r=|d=, l=|h=, [axis=], ...);
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// Usage: Conical Geometry
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// geom = attach_geom(r1|d1=, r2=|d2=, l=, [axis=], ...);
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// Usage: Spheroid/Ovoid Geometry
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// geom = attach_geom(r=|d=, ...);
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// Usage: Extruded 2D Path/Polygon Geometry
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// geom = attach_geom(path=, l=|h=, [extent=], ...);
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// Usage: VNF Geometry
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// geom = attach_geom(vnf=, [extent=], ...);
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//
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@ -138,7 +140,7 @@ function anchorpt(name, pos=[0,0,0], orient=UP, spin=0) = [name, pos, orient, sp
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// r2 = Radius of the top of the conical volume. Can be a scalar, or a list of sizes per axis.
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// d1 = Diameter of the bottom of the conical volume. Can be a scalar, a list of sizes per axis.
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// d2 = Diameter of the top of the conical volume. Can be a scalar, a list of sizes per axis.
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// l = Length of the cylindrical/conical volume along axis.
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// l/h = Length of the cylindrical, conical or extruded path volume along axis.
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// vnf = The [VNF](vnf.scad) of the volume.
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// path = The path to generate a polygon from.
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// extent = If true, calculate anchors by extents, rather than intersection. Default: true.
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@ -205,6 +207,12 @@ function anchorpt(name, pos=[0,0,0], orient=UP, spin=0) = [name, pos, orient, sp
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// Example(NORENDER): Arbitrary 2D Polygon Shape, Anchored by Intersection
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// geom = attach_geom(two_d=true, path=path, extent=false);
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//
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// Example(NORENDER): Extruded Polygon Shape, Anchored by Extents
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// geom = attach_geom(path=path, l=height);
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//
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// Example(NORENDER): Extruded Polygon Shape, Anchored by Intersection
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// geom = attach_geom(path=path, l=length, extent=false);
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//
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function attach_geom(
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size, size2, shift,
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r,r1,r2, d,d1,d2, l,h,
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@ -249,9 +257,16 @@ function attach_geom(
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["vnf_isect", vnf, cp, offset, anchors]
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) : !is_undef(path)? (
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assert(is_path(path),2)
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assert(two_d == true)
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extent? ["path_extent", path, cp, offset, anchors] :
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["path_isect", path, cp, offset, anchors]
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let( l = default(l, h) )
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two_d==true
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? assert(is_undef(l))
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extent==true
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? ["path_extent", path, cp, offset, anchors]
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: ["path_isect", path, cp, offset, anchors]
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: assert(is_finite(l))
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extent==true
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? ["xpath_extent", path, l, cp, offset, anchors]
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: ["xpath_isect", path, l, cp, offset, anchors]
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) :
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let(
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r1 = get_radius(r1=r1,d1=d1,r=r,d=d,dflt=undef)
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@ -325,7 +340,7 @@ function attach_geom_size(geom) =
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approx(axis,UP)? [2*maxxr,2*maxyr,l] :
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approx(axis,RIGHT)? [l,2*maxyr,2*maxxr] :
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approx(axis,BACK)? [2*maxxr,l,2*maxyr] :
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[2*maxxr, 2*maxyr,l]
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[2*maxxr, 2*maxyr, l]
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) : type == "spheroid"? ( //r
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let( r=geom[1] )
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is_num(r)? [2,2,2]*r : v_mul([2,2,2],point3d(r))
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@ -337,6 +352,11 @@ function attach_geom_size(geom) =
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mm = pointlist_bounds(geom[1][0]),
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delt = mm[1]-mm[0]
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) delt
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) : type == "xpath_isect" || type == "xpath_extent"? ( //path, l
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let(
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mm = pointlist_bounds(geom[1]),
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delt = mm[1]-mm[0]
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) [delt.x, delt.y, geom[2]]
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) : type == "rect"? ( //size, size2
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let(
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size=geom[1], size2=geom[2], shift=geom[3],
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@ -633,6 +653,46 @@ function find_anchor(anchor, geom) =
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avgy = (miny+maxy)/2,
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pos = point2d(cp) + rot(from=RIGHT, to=anchor, p=[maxx,avgy])
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) [anchor, pos, anchor, 0]
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) : type == "xpath_isect"? ( //path
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let(
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path = move(-point2d(cp), p=geom[1]),
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l = geom[2],
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anchor = point3d(anchor),
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xyanch = point2d(anchor),
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isects = [
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for (t=triplet(path,true)) let(
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seg1 = [t[0],t[1]],
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seg2 = [t[1],t[2]],
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isect = ray_segment_intersection([[0,0],xyanch], seg1),
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n = is_undef(isect)? [0,1] :
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!approx(isect, t[1])? line_normal(seg1) :
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unit((line_normal(seg1)+line_normal(seg2))/2,[0,1]),
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n2 = vector_angle(xyanch,n)>90? -n : n
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)
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if(!is_undef(isect) && !approx(isect,t[0]))
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[norm(isect), isect, n2]
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],
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maxidx = max_index(subindex(isects,0)),
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isect = isects[maxidx],
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pos = point3d(cp) + point3d(isect[1]) + unit([0,0,anchor.z],CENTER)*l/2,
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xyvec = unit(isect[2],[0,1]),
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vec = unit((point3d(xyvec)+UP)/2,UP),
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oang = approx(xyvec, [0,0])? 0 : atan2(xyvec.y, xyvec.x) + 90
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) [anchor, pos, vec, oang]
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) : type == "xpath_extent"? ( //path
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let(
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path = geom[1], l = geom[2],
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anchor = point3d(anchor),
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xyanch = point2d(anchor),
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rpath = rot(from=xyanch, to=RIGHT, p=move(point2d(-cp), p=path)),
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maxx = max(subindex(rpath,0)),
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idxs = [for (i = idx(rpath)) if (approx(rpath[i].x, maxx)) i],
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ys = [for (i=idxs) rpath[i].y],
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avgy = (min(ys)+max(ys))/2,
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xypos = point2d(cp) + rot(from=RIGHT, to=xyanch, p=[maxx,avgy]),
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pos = point3d(xypos) + unit([0,0,anchor.z],CENTER)*l/2,
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vec = unit((point3d(xyanch)+UP)/2,UP)
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) [anchor, pos, vec, oang]
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) :
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assert(false, "Unknown attachment geometry type.");
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@ -677,6 +737,9 @@ function attachment_is_shown(tags) =
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// Usage: Spheroid/Ovoid Geometry
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// mat = reorient(anchor, spin, [orient], r|d=, ...);
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// pts = reorient(anchor, spin, [orient], r|d=, p=, ...);
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// Usage: Extruded Path/Polygon Geometry
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// mat = reorient(anchor, spin, [orient], path=, l=|h=, [extent=], ...);
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// pts = reorient(anchor, spin, [orient], path=, l=|h=, [extent=], p=, ...);
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// Usage: VNF Geometry
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// mat = reorient(anchor, spin, [orient], vnf, [extent], ...);
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// pts = reorient(anchor, spin, [orient], vnf, [extent], p=, ...);
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@ -722,7 +785,7 @@ function attachment_is_shown(tags) =
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// r2 = Radius of the top of the conical volume. Can be a scalar, or a list of sizes per axis.
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// d1 = Diameter of the bottom of the conical volume. Can be a scalar, a list of sizes per axis.
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// d2 = Diameter of the top of the conical volume. Can be a scalar, a list of sizes per axis.
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// l = Length of the cylindrical/conical volume along axis.
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// l/h = Length of the cylindrical, conical, or extruded path volume along axis.
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// vnf = The [VNF](vnf.scad) of the volume.
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// path = The path to generate a polygon from.
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// extent = If true, calculate anchors by extents, rather than intersection. Default: false.
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@ -785,6 +848,8 @@ function reorient(
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// attachable(anchor, spin, [orient], r1=|d1=, r2=|d2=, l=, [axis=], ...) {...}
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// Usage: Spheroid/Ovoid Geometry
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// attachable(anchor, spin, [orient], r=|d=, ...) {...}
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// Usage: Extruded Path/Polygon Geometry
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// attachable(anchor, spin, path=, l=|h=, [extent=], ...) {...}
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// Usage: VNF Geometry
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// attachable(anchor, spin, [orient], vnf=, [extent=], ...) {...}
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//
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@ -834,10 +899,10 @@ function reorient(
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// r2 = Radius of the top of the conical volume. Can be a scalar, or a list of sizes per axis.
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// d1 = Diameter of the bottom of the conical volume. Can be a scalar, a list of sizes per axis.
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// d2 = Diameter of the top of the conical volume. Can be a scalar, a list of sizes per axis.
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// l = Length of the cylindrical/conical volume along axis.
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// l/h = Length of the cylindrical, conical, or extruded path volume along axis.
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// vnf = The [VNF](vnf.scad) of the volume.
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// path = The path to generate a polygon from.
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// extent = If true, calculate anchors by extents, rather than intersection. Default: false.
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// extent = If true, calculate anchors by extents, rather than intersection, for VNFs and paths. Default: true.
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// cp = If given, specifies the centerpoint of the volume. Default: `[0,0,0]`
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// offset = If given, offsets the perimeter of the volume around the centerpoint.
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// anchors = If given as a list of anchor points, allows named anchor points.
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@ -910,14 +975,34 @@ function reorient(
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// children();
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// }
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//
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// Example(NORENDER): Arbitrary VNF Shape
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// Example(NORENDER): Extruded Polygon Shape, by Extents
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// attachable(anchor, spin, orient, path=path, l=length) {
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// linear_extrude(height=length, center=true)
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// polygon(path);
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// children();
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// }
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//
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// Example(NORENDER): Extruded Polygon Shape, by Intersection
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// attachable(anchor, spin, orient, path=path, l=length, extent=false) {
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// linear_extrude(height=length, center=true)
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// polygon(path);
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// children();
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// }
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//
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// Example(NORENDER): Arbitrary VNF Shape, by Extents
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// attachable(anchor, spin, orient, vnf=vnf) {
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// vnf_polyhedron(vnf);
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// children();
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// }
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//
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// Example(NORENDER): Arbitrary VNF Shape, by Intersection
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// attachable(anchor, spin, orient, vnf=vnf, extent=false) {
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// vnf_polyhedron(vnf);
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// children();
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// }
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//
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// Example(NORENDER): 2D Rectangular Shape
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// attachable(anchor, spin, orient, size=size) {
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// attachable(anchor, spin, orient, two_d=true, size=size) {
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// square(size, center=true);
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// children();
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// }
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@ -925,6 +1010,7 @@ function reorient(
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// Example(NORENDER): 2D Trapezoidal Shape
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// attachable(
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// anchor, spin, orient,
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// two_d=true,
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// size=[x1,y],
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// size2=x2,
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// shift=shift
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@ -939,8 +1025,14 @@ function reorient(
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// children();
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// }
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//
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// Example(NORENDER): Arbitrary 2D Polygon Shape
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// attachable(anchor, spin, orient, path=path) {
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// Example(NORENDER): Arbitrary 2D Polygon Shape, by Extents
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// attachable(anchor, spin, orient, two_d=true, path=path) {
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// polygon(path);
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// children();
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// }
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//
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// Example(NORENDER): Arbitrary 2D Polygon Shape, by Intersection
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// attachable(anchor, spin, orient, two_d=true, path=path, extent=false) {
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// polygon(path);
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// children();
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// }
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