Hannes e8d1099ff3
add optional segments argument
text taken from single_sided_buffer
2018-05-10 16:58:12 +02:00

11 lines
744 B
Plaintext

{
"name": "buffer",
"type": "function",
"description": "Returns a geometry that represents all points whose distance from this geometry is less than or equal to distance. Calculations are in the Spatial Reference System of this geometry.",
"arguments": [ {"arg":"geom","description":"a geometry"},
{"arg":"distance","description":"buffer distance in layer units"},
{"arg":"segments","optional":true,"default":"8","description":"number of segments to use to represent a quarter circle when a round join style is used. A larger number results in a smoother buffer with more nodes."}],
"examples": [ { "expression":"buffer($geometry, 10.5)", "returns":"polygon of $geometry buffered by 10.5 units"}]
}