[Mobilitydb-dev] Fwd: Visualizing movement - MobilityDB QGIS Plugin

[Esteban Zimanyi]

Dear Anita

In the context of his Master's project, Luderic explored various ways to
integrate MobilityDB with QGIS
https://github.com/ludericv/MobilityDB-visualization
We sent the email below to Nyall to have guidance of the best approach to
continue in this direction but didn't receive any answer.

Could you please tell us the best way to connect with the QGIS team to
discuss this ?

Many thanks for your help

Esteban

---------- Forwarded message ---------
From: Mahmoud SAKR <mahmoud.sakr at ulb.ac.be>
Date: Thu, Apr 15, 2021 at 9:06 AM
Subject: Visualizing movement - MobilityDB QGIS Plugin
To: Nyall Dawson <nyall.dawson at gmail.com>, Esteban Zimanyi <
ezimanyi at ulb.ac.be>, VAN CALCK Luderic <Luderic.Van.Calck at ulb.be>,
SCHOEMANS Maxime <Maxime.Schoemans at ulb.be>


Dear Nyall,
Hope things are going well at your side.

We made new work in visualizing moving objects that you may find
interesting. The MOVE QGIS plugin enables users to write MobilityDB
queries, and automatically adds corresponding visualization layers (
https://github.com/mschoema/move). The plugin analyzes the user query,
detects, and visualizes these column types:

   - tgeompoint, the MobilityDB type for a temporal point. Behind the
   scene, the plugin will create a PostGIS table with LinestringM
   representation of the temporal points, then automatically adds a temporal
   layer in QGIS, including the python code for animating the points.
   - tgeometry, the MobilityDB type for temporal regions of fixed shape (a
   region that moves and rotates without deformation). The plugin will create
   a PostGIS table with region snapshots and their timestamps, then adds a
   temporal layer for visualizing it.
   - Any spatial derivative of a moving object, will be displayed as a
   PostGIS layer. Examples are the spatial path of a moving point, and the
   traversed area of a moving region.
   - in addition, as you probably saw, Maxime is proposing a DataPlotly
   enhancement for visualizing temporal properties, such as speed etc.

In the moment, we continue this work in a thesis project, trying to achieve
better performance by buffering some frames in the QGIS memory.
https://github.com/ludericv/MobilityDB-visualization

We would like to synchronize with you, and know your opinion on the options
being explored. Would you have availability in the coming few weeks for a
teleco ?


Best regards,
Mahmoud SAKR, PhD
Research Associate

T : +32 (0)2 6503750
mahmoud.sakr at ulb.ac.be
[image: Université libre de Bruxelles] <http://www.ulb.ac.be>
*Department of Computer & Decision Engineering (CoDE) CP 165/15 *
Avenue F. D. Roosevelt 50 - 1050 Brussels, Belgium.
cs.ulb.ac.be/members/mahmoud/
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