Anita Graser

Results 45 issues of Anita Graser

Does Vegas support specifying different color schemes than the default ones (as discribed in https://vega.github.io/vega-lite/docs/scale.html#scheme)? I'd be interested in setting the scheme to "Viridis" but couldn't find an example nor...

I'm having trouble wrapping my head around the LISA results. I've created a point pattern which is very localized. Large parts of the network are not covered by any points....

bug
question
priority-high

Is it possible to stream GeoDataFrames, e.g. to track object movement? I followed the https://hvplot.holoviz.org/user_guide/Streaming.html examples but failed to modify them to work for GeoDataFrames / GeoViews.

As reported in #235: ![image](https://user-images.githubusercontent.com/590385/182443876-4b173eac-a51c-42cf-bad7-0e7feac20d7d.png) ```python # make toy trajectory df = pd.DataFrame([ {'geometry':Point(0,2), 't':datetime(2018,1,1,12,0,0)}, {'geometry':Point(6,2), 't':datetime(2018,1,1,12,6,0)}, {'geometry':Point(6,6), 't':datetime(2018,1,1,12,10,0)}, {'geometry':Point(9,9), 't':datetime(2018,1,1,12,15,0)}, ]).set_index('t') gdf = GeoDataFrame(df, crs=31256) toy_traj = mpd.Trajectory(gdf, 1)...

bug

Geopy provides a Distance class that makes it easy to switch between distance units: m, km, miles, feet, nautical: https://github.com/geopy/geopy/blob/40717e64e9a79ab52ecbf39530f7c5d663c5d664/geopy/distance.py#L190 MovingPandas should have similar additional capabilities for speed: m/s, ft/s,...

enhancement

Useful distance measures include but are not limited to: - [x] (minimum) distance https://shapely.readthedocs.io/en/stable/manual.html#object.distance - [x] Hausdorff distance https://shapely.readthedocs.io/en/stable/manual.html#object.hausdorff_distance - [ ] Fréchet distance For more details, see Zheng &...

enhancement

To make installation easier an thus make MovingPandas more suitable for integration, e.g. in a QGIS plugin.

enhancement

The idea would be to stream GeoDataFrames to track object movement, similar to the examples in https://hvplot.holoviz.org/user_guide/Streaming.html Feature requests in the corresponding libraries have been filed at: * https://github.com/python-streamz/streamz/issues/325 *...

tasks

Turn TrajectoryCollection into OD flows, as shown on the right here: ![movingpandas_ais](https://user-images.githubusercontent.com/590385/73123664-5ad67280-3f92-11ea-8b42-02a0135f0f5c.PNG) Could be helpful to use clustering approach implemented in https://github.com/anitagraser/movingpandas/blob/master/movingpandas/point_clusterer.py

enhancement

Calling dissolve on a TrajectoryCollection should attempt to stitch/merge trajectories. Motivation: Data from multi-camera tracking systems and similar systems provide segmented trajectories that need to be recombined. (Obviously sophisticated systems...

enhancement