openscad/BOSL2
1
0
Fork 0
mirror of https://github.com/revarbat/BOSL2.git synced 2025-08-27 14:40:10 +02:00
Code Issues Projects Releases Wiki Activity

Make most path functions accept singleton regions

Browse Source 
Replace check_and_fix_path with force_path
This commit is contained in:
Adrian Mariano
2021-10-29 19:29:51 -04:00
parent 9cf991bb29
commit 052200433b
6 changed files with 150 additions and 74 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
geometry.scad
View File

@@ -1860,6 +1860,7 @@ function ccw_polygon(poly) =
// Arguments:
// poly = The list of the path points for the perimeter of the polygon.
function reverse_polygon(poly) =
let(poly=force_path(poly,"poly"))
assert(is_path(poly), "Input should be a polygon")
[ poly[0], for(i=[len(poly)-1:-1:1]) poly[i] ];
@@ -1878,6 +1879,7 @@ function reverse_polygon(poly) =
// Example:
// polygon_shift([[3,4], [8,2], [0,2], [-4,0]], 2); // Returns [[0,2], [-4,0], [3,4], [8,2]]
function polygon_shift(poly, i) =
let(poly=force_path(poly,"poly"))
assert(is_path(poly), "Invalid polygon." )
list_rotate(cleanup_path(poly), i);
@@ -1895,7 +1897,7 @@ function polygon_shift(poly, i) =
// makes the total sum over all pairs as small as possible. Returns the reindexed polygon. Note
// that the geometry of the polygon is not changed by this operation, just the labeling of its
// vertices. If the input polygon is 2d and is oriented opposite the reference then its point order is
// flipped.
// reversed.
// Arguments:
// reference = reference polygon path
// poly = input polygon to reindex
@@ -1913,7 +1915,9 @@ function polygon_shift(poly, i) =
// move_copies(concat(circ,pent)) circle(r=.1,$fn=32);
// color("red") move_copies([pent[0],circ[0]]) circle(r=.1,$fn=32);
// color("blue") translate(reindexed[0])circle(r=.1,$fn=32);
function reindex_polygon(reference, poly, return_error=false) =
function reindex_polygon(reference, poly, return_error=false) =
let(reference=force_path(reference,"reference"),
poly=force_path(poly,"poly"))
assert(is_path(reference) && is_path(poly,dim=len(reference[0])),
"Invalid polygon(s) or incompatible dimensions. " )
assert(len(reference)==len(poly), "The polygons must have the same length.")
@@ -1971,6 +1975,8 @@ function polygon_shift(poly, i) =
// stroke(ellipse, width=.5, closed=true);
// color("blue")stroke(aligned,width=.5,closed=true);
function align_polygon(reference, poly, angles, cp, trans, return_ind=false) =
let(reference=force_path(reference,"reference"),
poly=force_path(poly,"poly"))
assert(is_undef(trans) || (is_undef(angles) && is_undef(cp)), "Cannot give both angles/cp and trans as input")
let(
trans = is_def(trans) ? trans :
@@ -1978,8 +1984,8 @@ function align_polygon(reference, poly, angles, cp, trans, return_ind=false) =
"The `angle` parameter must be a range or a non void list of numbers.")
[for(angle=angles) zrot(angle,cp=cp)]
)
assert(is_path(reference,dim=2) && is_path(poly,dim=2),
"Invalid polygon(s). " )
assert(is_path(reference,dim=2), "reference must be a 2D polygon")
assert(is_path(poly,dim=2), "poly must be a 2D polygon")
assert(len(reference)==len(poly), "The polygons must have the same length.")
let( // alignments is a vector of entries of the form: [polygon, error]
alignments = [