rnet.simplify

rnet.simplify(model, *, xmin=None, ymin=None, xmax=None, ymax=None)

Return simplified model.

New in version 0.0.5.

Parameters

modelModel

Original model.

xmin, ymin, xmax, ymaxfloat or None, optional

Bounds within which features are kept.

Returns

Model

Simplified model.

Examples

>>> m = rn.model("./resources/shinjuku.osm")
>>> m.info()
<class 'rnet.model.Model'>
 |
 |  Attributes:
 |
 |  'nodes'
 |  <class 'rnet.dataset.NodeData'>
 |  Count: 944
 |  CRS: EPSG:4326
 |  dims: 3
 |  xmin: 139.6867708
 |  ymin: 35.6782595
 |  xmax: 139.7213249
 |  ymax: 35.7018425
 |
 |  'edges'
 |  <class 'rnet.dataset.EdgeData'>
 |  Count: 2,816
 |  CRS: EPSG:4326
 |  dims: 2
 |  xmin: 139.6867708
 |  ymin: 35.6782595
 |  xmax: 139.7213249
 |  ymax: 35.7018425

Construct a simplified model by applying a lower bound on the \(x\)-coordinates:

>>> n = rn.simplify(m, xmin=139.7)
>>> n.info()
<class 'rnet.model.Model'>
 |
 |  Attributes:
 |
 |  'nodes'
 |  <class 'rnet.dataset.NodeData'>
 |  Count: 475
 |  CRS: EPSG:4326
 |  dims: 3
 |  xmin: 139.7000571
 |  ymin: 35.6782595
 |  xmax: 139.7213249
 |  ymax: 35.6982890
 |
 |  'edges'
 |  <class 'rnet.dataset.EdgeData'>
 |  Count: 1,418
 |  CRS: EPSG:4326
 |  dims: 2
 |  xmin: 139.7000571
 |  ymin: 35.6782595
 |  xmax: 139.7213249
 |  ymax: 35.6982890