bounding¶
Utilities for working with bounding boxes
-
svgis.bounding.
check
(bounds)¶ Check if bounds are valid.
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svgis.bounding.
covers
(b1, b2)¶ Check if a bounding box covers another.
Parameters: - b1 (tuple) – a bounding box (minx, miny, maxx, maxy)
- b2 (tuple) – a bounding box
Returns: False
if any points inb2
are outsideb1
.Return type: bool
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svgis.bounding.
pad
(bounds, ext=100)¶ Pad a bounding box. Works best when input is in a projected unit (i.e. feet or meters).
Parameters: - bounds (tuple) – a bounding box (minx, miny, maxx, maxy)
- ext (int) – the distance to pad the box, in projected units. Default: 100.
Returns: A bounding box (minx, miny, maxx, maxy)
Return type: tuple
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svgis.bounding.
ring
(bounds)¶ Convert min, max points to a boundary ring.
Parameters: bounds (tuple) – a bounding box (minx, miny, maxx, maxy) Returns: a geojson-like ring of coordinates Return type: list
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svgis.bounding.
transform
(bounds, **kwargs)¶ Project a bounding box, taking care to not slice off the sides.
Parameters: - bounds (tuple) – bounding box to transform.
- transformer (pyproj.transformer.Transformer) – A pyproj Transformer instance.
- in_crs (dict) – Fiona-type proj4 mapping representing input projection.
- out_crs (dict) – Fiona-type proj4 mapping representing output projection.
Returns: The input
bounds
reprojected fromin_crs
toout_crs
Return type: tuple
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svgis.bounding.
update
(old, new)¶ Extend old with any more distant values from newpoints. Also replace any missing min/max points in old with values from new.