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Added cleanup_path() and cleanup_region()

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Revar Desmera 2019-07-18 21:48:32 -07:00
parent 4a72997fb8
commit 52ab40b4f5
1 changed files with 19 additions and 3 deletions
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geometry.scad
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@ -449,7 +449,7 @@ function is_path(x) = is_list(x) && is_vector(x.x) && len(x)>1;
function is_closed_path(path, eps=EPSILON) = approx(path[0], path[len(path)-1], eps=eps); function is_closed_path(path, eps=EPSILON) = approx(path[0], path[len(path)-1], eps=eps);
// Function: close_path(path) // Function: close_path()
// Usage: // Usage:
// close_path(path); // close_path(path);
// Description: // Description:
@ -457,7 +457,15 @@ function is_closed_path(path, eps=EPSILON) = approx(path[0], path[len(path)-1],
function close_path(path, eps=EPSILON) = is_closed_path(path,eps=eps)? path : concat(path,[path[0]]); function close_path(path, eps=EPSILON) = is_closed_path(path,eps=eps)? path : concat(path,[path[0]]);
// Function path_subselect() // Function: cleanup_path()
// Usage:
// cleanup_path(path);
// Description:
// If a path's last point coincides with its first point, deletes the last point in the path.
function cleanup_path(path, eps=EPSILON) = is_closed_path(path,eps=eps)? select(path,0,-2) : path;
// Function: path_subselect()
// Usage: // Usage:
// path_subselect(path,s1,u1,s2,u2): // path_subselect(path,s1,u1,s2,u2):
// Description: // Description:
@ -695,7 +703,7 @@ function polygon_clockwise(path) =
function is_region(x) = is_list(x) && is_path(x.x); function is_region(x) = is_list(x) && is_path(x.x);
// Function: close_region(path) // Function: close_region()
// Usage: // Usage:
// close_region(region); // close_region(region);
// Description: // Description:
@ -703,6 +711,14 @@ function is_region(x) = is_list(x) && is_path(x.x);
function close_region(region, eps=EPSILON) = [for (path=region) close_path(path, eps=eps)]; function close_region(region, eps=EPSILON) = [for (path=region) close_path(path, eps=eps)];
// Function: cleanup_region()
// Usage:
// cleanup_region(region);
// Description:
// For all paths in the given region, if the last point coincides with the first point, removes the last point.
function cleanup_region(region, eps=EPSILON) = [for (path=region) cleanup_path(path, eps=eps)];
// Function: region_path_crossings() // Function: region_path_crossings()
// Usage: // Usage:
// region_path_crossings(path, region); // region_path_crossings(path, region);