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a4386d6116
Returns the portion of a line (or curve) geometry which falls between the specified start and end distances (measured from the beginning of the line). Z and M values are linearly interpolated from existing values. Fixes #15611
10 lines
731 B
Plaintext
10 lines
731 B
Plaintext
{
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"name": "line_substring",
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"type": "function",
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"description": "Returns the portion of a line (or curve) geometry which falls between the specified start and end distances (measured from the beginning of the line). Z and M values are linearly interpolated from existing values.",
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"arguments": [ {"arg":"geometry","description":"a linestring or curve geometry"},
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{"arg":"start_distance","description":"distance to start of substring"},
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{"arg":"end_distance","description":"distance to end of substring"}],
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"examples": [ { "expression":"geom_to_wkt(line_substring(geometry:=geom_from_wkt('LineString(0 0, 10 0)'),start_distance:=2,end_distance=6))", "returns":"'LineString (2 0,6 0)'"}]
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}
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