RegionHoleBounds - find bounds of each hole in region [1034662]

< > BotCompany Repo | #1034662 // RegionHoleBounds - find bounds of each hole in region

JavaX fragment (include) [tags: use-pretranspiled]

Transpiled version (8654L) is out of date.

srecord noeq RegionHoleBounds(IImageRegion region) {
  new L<Rect> holeBounds;
  BoundsFinder bf;
  
  L<Rect> get() {
    if (region == null) ret holeBounds;
    var borderWalker = new RegionBorder_innerPoints_v2(region);
    borderWalker.onNewTrace(isHole -> {
      if (isHole) {
        if (bf != null) holeBounds.add(bf!);
        bf = new BoundsFinder;
      } else
        bf = null;
    });
    borderWalker.onFoundPoint(p -> { bf?.addPt(p); });
    borderWalker.run();
    if (bf != null) holeBounds.add(bf!);
    ret holeBounds;
  }
}

Author comment

Began life as a copy of #1034657

Travelled to 4 computer(s): bhatertpkbcr, ekrmjmnbrukm, mowyntqkapby, mqqgnosmbjvj

Snippet ID:

#1034662

Snippet name:

RegionHoleBounds - find bounds of each hole in region

Eternal ID of this version:

#1034662/7

Text MD5:

6bed9216ad47e1243f3cb6dc67a74c9f

Author:

stefan

Category:

javax / gazelle 22

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2022-02-28 23:45:47

Source code size:

563 bytes / 20 lines

Pitched / IR pitched:

No / No

Views / Downloads:

77 / 142

Version history:

6 change(s)

Referenced in:

[show references]

1	srecord noeq RegionHoleBounds(IImageRegion region) {
2	new L<Rect> holeBounds;
3	BoundsFinder bf;
4
5	L<Rect> get() {
6	if (region == null) ret holeBounds;
7	var borderWalker = new RegionBorder_innerPoints_v2(region);
8	borderWalker.onNewTrace(isHole -> {
9	if (isHole) {
10	if (bf != null) holeBounds.add(bf!);
11	bf = new BoundsFinder;
12	} else
13	bf = null;
14	});
15	borderWalker.onFoundPoint(p -> { bf?.addPt(p); });
16	borderWalker.run();
17	if (bf != null) holeBounds.add(bf!);
18	ret holeBounds;
19	}
20	}