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			16 lines
		
	
	
		
			663 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			16 lines
		
	
	
		
			663 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
{
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  "name": "force_polygon_ccw",
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  "type": "function",
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  "groups": ["GeometryGroup"],
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  "description": "Forces a geometry to respect the convention where exterior rings are counter-clockwise, interior rings are clockwise.",
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  "arguments": [{
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    "arg": "geometry",
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    "description": "a geometry. Any non-polygon geometries are returned unchanged."
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  }],
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  "examples": [{
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    "expression": "geom_to_wkt(force_polygon_ccw(geometry:=geom_from_wkt('Polygon ((-1 -1, 0 2, 4 2, 4 0, -1 -1)))')))",
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    "returns": "'Polygon ((-1 -1, 4 0, 4 2, 0 2, -1 -1))'"
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  }],
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  "tags": ["exterior", "clockwise", "respect", "convention", "rings", "counter", "interior", "forces"]
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}
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