Skip to content

NOTES.md

Latest commit

 

History

History
80 lines (54 loc) · 2.81 KB

NOTES.md

File metadata and controls

80 lines (54 loc) · 2.81 KB

PySTARE Notes

2021-05-21

Added stare_version, retuning STARE's version string.

2020-03-19 0.6.0

srange and intersect were often not returning multi-resolution results. Added a set_values_multi_resolution method to srange and added a multi_resolution flag to StareResult. Setting values multi_resolution to true turns on expandIntervalsMultiRes, coalescing quadruplets of trixels whenever it can. If values multi_resolution is false then we should get expansions based on the resolution encoded with the interval.

2020-09-01 0.5.5

intersects now provides several methods for matching two arrays of indices. The method parameter defaults to '0' indicating using a STARE SpatialRange (skip list). '1' indicates a simple binary search and sort which re-orders the first input array, but is faster at present than method 0. '2' or other number uses an M*N brute force loop calling cmpSpatial. Method '0' is currently the fastest and has the best scaling. SpatialRange's own poor scaling is currently logged as an issue.

2020-06-24 0.5.4

spatial_resolution_from_km now returns int by default. Selectable by return_int argument.

2020-06-23 0.5.3

Overwrote definition of spatial_resolution. Fixed by adding spatial_resolution_from_km.

2020-05-28 0.5.2

Tweak to geopandas for polygon orientation.

2020-05-28 0.5.0

Added auto-sizing of results to many returns. Changed default in from_polygon to nonconvex=True. Fixed subtle case where trixel was dropped because its center, vertices, and mid-edge points were all outside the polygon. Added a calculation that checks for intersecting edges between the test trixel edges and the polygon edges.

CW polygons now yield the complement of the nonconvex hull. CCW returns the interior and boundary.

2020-05-22 0.4.1 Tweaked a test case.

2020-05-22 0.4.0 Add non convex hull routine.

2020-05-01 0.3.6 Add spatial_ helper routines.

2020-04-30 0.3.5 Add spatial_scale_km(resolution) to get estimate of length scale at resolution level.

2020-04-30 0.3.3 Fixed np -> numpy error in spatial_resolution...

2020-04-10 0.3.1 Fixed srange.contains

We don't have the numpy.i SWIG mapping for int64_t to Python int working. Using "long long" on C++ and Python int when calling.

2020-04-10 0.3.0 Added srange

pystare.srange exposes SpatialRange functionality to Python. Example usage is shown in tests/test_intersections.py in the test_intersect_range_single_res test.

For example,

   r0 = pystare.srange()
   r0.add_intervals(hull0)
   r1 = pystare.srange()
   r1.add_intervals(hull1)
   r01 = pystare.srange()
   r01.add_intersect(r0,r1,False)

where the above shows how to use sranges to determine the intersection of two sets of intervals (hull0 and hull1) with the result being stored in srange r01.

srange has a SpatialRange object and a number of methods to manage its state.