Nyall Dawson 275eb9463d [FEATURE] Add closest_point and shortest_line expression functions
closest_point: returns closest point a geometry to a second geometry
shortest_line: returns the shortest possible line joining two
geometries
2016-01-15 12:50:17 +11:00

16 lines
605 B
Plaintext

{
"name": "shortest_line",
"type": "function",
"description": "Returns the shortest line joining geometry 1 to geometry 2. The resultant line will start at geometry 1 and end at geometry 2.",
"arguments": [
{"arg":"geometry 1","description":"geometry to find shortest line from"},
{"arg":"geometry 2","description":"geometry to find shortest line to"}
],
"examples": [
{
"expression":"geom_to_wkt(shortest_line(geom_from_wkt('LINESTRING (20 80, 98 190, 110 180, 50 75 )'),geom_from_wkt('POINT(100 100)')))",
"returns":"LineString(73.0769 115.384, 100 100)"
}
]
}