QGIS/resources/function_help/json/interior_ring_n

{
  "name": "interior_ring_n",
  "type": "function",
  "groups": ["GeometryGroup"],
  "description": "Returns a specific interior ring from a polygon geometry, or NULL if the geometry is not a polygon.",
  "arguments": [ {"arg":"geometry","description":"polygon geometry"},
  {"arg":"index","description":"index of interior to return, where 1 is the first interior ring"} ],
  "examples": [ { "expression":"geom_to_wkt(interior_ring_n(geom_from_wkt('POLYGON((-1 -1, 4 0, 4 2, 0 2, -1 -1),(-0.1 -0.1, 0.4 0, 0.4 0.2, 0 0.2, -0.1 -0.1),(-1 -1, 4 0, 4 2, 0 2, -1 -1))'),1))", "returns":"'LineString (-0.1 -0.1, 0.4 0, 0.4 0.2, 0 0.2, -0.1 -0.1))'"}]
}
[FEATURE] More geometry functions for expressions - add accessors: geometry_n, interior_ring_n - add num_geometries, num_rings, num_interior_rings - add nodes_to_points for converting every node in a geometry to a multipoint geometry - add segments_to_lines for converting every segment in a geometry to a multiline geometry nodes_to_points and segments_to_lines are intended for use with geometry generator symbology, eg to allow use of m and z values for nodes/lines with data defined symbology. 2015-12-15 07:39:43 +11:00			`{`
			`"name": "interior_ring_n",`
			`"type": "function",`
Add groups to function_help files 2020-07-02 01:46:48 +01:00			`"groups": ["GeometryGroup"],`
Harmonize NULL spelling in function help 2020-07-29 08:51:06 +02:00			`"description": "Returns a specific interior ring from a polygon geometry, or NULL if the geometry is not a polygon.",`
[FEATURE] More geometry functions for expressions - add accessors: geometry_n, interior_ring_n - add num_geometries, num_rings, num_interior_rings - add nodes_to_points for converting every node in a geometry to a multipoint geometry - add segments_to_lines for converting every segment in a geometry to a multiline geometry nodes_to_points and segments_to_lines are intended for use with geometry generator symbology, eg to allow use of m and z values for nodes/lines with data defined symbology. 2015-12-15 07:39:43 +11:00			`"arguments": [ {"arg":"geometry","description":"polygon geometry"},`
			`{"arg":"index","description":"index of interior to return, where 1 is the first interior ring"} ],`
			`"examples": [ { "expression":"geom_to_wkt(interior_ring_n(geom_from_wkt('POLYGON((-1 -1, 4 0, 4 2, 0 2, -1 -1),(-0.1 -0.1, 0.4 0, 0.4 0.2, 0 0.2, -0.1 -0.1),(-1 -1, 4 0, 4 2, 0 2, -1 -1))'),1))", "returns":"'LineString (-0.1 -0.1, 0.4 0, 0.4 0.2, 0 0.2, -0.1 -0.1))'"}]`
			`}`