G22SkeletonWalker [backup] [1034999]

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JavaX fragment (include)

srecord noeq G22SkeletonWalker<Img>(IImageRegion<Img> region) is Steppable {
  // nodes by starting point (filled during exploration)
  new Map<Pt, Node> nodesByPt;
  
  // temporary data
  
  ItIt<Pt> ptIterator; // region pixel iterator
  new LinkedList<Pair<Node, Pt>> queue; // incomplete nodes queue (with point to check)
  
  // each node is a path, at the end of which there is an optional
  // junction with multiple branches
  class Node {
    new PtBuffer path;
    L<Node> branches; // junction part (optional)
     
    Pt startingPt() { ret first(path); }
  }
  
    public bool step() {
    ping();
    
    if (nempty(queue)) {
      Pt p = popFirst(queue);
    }
    
    if (ptIterator == null)
      ptIterator = region.pixelIterator();
      
    fOr (A b : getChildren.get(a))
      add(b, a);
    true;
  }
}

Author comment

Began life as a copy of #1034998

Travelled to 3 computer(s): bhatertpkbcr, mowyntqkapby, mqqgnosmbjvj

Snippet ID:

#1034999

Snippet name:

G22SkeletonWalker [backup]

Eternal ID of this version:

#1034999/1

Text MD5:

4867536b195e326fa4b8abaefd4c2276

Author:

stefan

Category:

javax

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2022-03-22 14:41:27

Source code size:

861 bytes / 33 lines

Pitched / IR pitched:

No / No

Views / Downloads:

400 / 413

Referenced in:

[show references]

1	srecord noeq G22SkeletonWalker<Img>(IImageRegion<Img> region) is Steppable {
2	// nodes by starting point (filled during exploration)
3	new Map<Pt, Node> nodesByPt;
4
5	// temporary data
6
7	ItIt<Pt> ptIterator; // region pixel iterator
8	new LinkedList<Pair<Node, Pt>> queue; // incomplete nodes queue (with point to check)
9
10	// each node is a path, at the end of which there is an optional
11	// junction with multiple branches
12	class Node {
13	new PtBuffer path;
14	L<Node> branches; // junction part (optional)
15
16	Pt startingPt() { ret first(path); }
17	}
18
19	public bool step() {
20	ping();
21
22	if (nempty(queue)) {
23	Pt p = popFirst(queue);
24	}
25
26	if (ptIterator == null)
27	ptIterator = region.pixelIterator();
28
29	fOr (A b : getChildren.get(a))
30	add(b, a);
31	true;
32	}
33	}