Thank you a lot! Sent from Yahoo Mail on Android On Mon, Nov 2, 2020 at 12:25 PM, Richard Duivenvoorde<rdmaili...@duif.net> wrote: Ah, and to reproduce, I created a temporary(!) service:
https://duif.net/geotest/points.geojson which gives you one random point on the world every time you refresh Regards, Richard On 11/2/20 12:23 PM, Richard Duivenvoorde wrote: > I think you hit an old issue: > > https://github.com/qgis/QGIS/issues/28282 > and > https://github.com/qgis/QGIS/issues/28744 > > Not sure if I can tackle it, but I can give it a try. > If a core-dev has a clue, please let me know... > > I think this should work, as this makes it supereasy to have a 'moving map'.. > > Regards, > > Richard Duivenvoorde > > > On 11/1/20 9:24 PM, nagyrob...@yahoo.com wrote: >> >> Hi All! >> >> I am trying to understand the behavior of Layer->Render-> Refresh layer >>at interval in QGIS >> >> 1. I sat up a flask rest api which serves a geojson. >> 2. I added the geojson to QGIS via Add Layer-> >> 1. a. Protocol HTTP/cloud/etc >> 2. b. Type: HTTP >> 3. c.URI: localhost/points.geojson The points are represented on >>the map correctly >> 3. I changed the layer->Properties->Rendering-> Refresh layer at >>interval (5 sec) >> >> I would have expected that there would be a call every 5 seconds towards >>the server and the map data would be updated accordingly. But the layer does >>not get refreshed. I don't see any changes neither when I remove a point from >>the json file on my local drive, nor if I change an attribute. If I press F5 >>then the canvas refreshes and it automatically loads the new data and I can >>see the changes. Is this the behavior that is wanted or am I misunderstanding >>the function of this tool? It seems like the data is cached somewhere? >> >> |from flask import Flask from flask_restful import Api, Resource import >>json app = Flask(__name__) api = Api(app) class point(Resource): def >>get(self): with open('C:/points/venv/src/points.geojson') as json_file: data >>= json.load(json_file) return data api.add_resource(point,"/points.geojson") >>if __name__=="__main__": app.run(debug=True)| >> >> |Robert Nagy| >> >> >> _______________________________________________ >> Qgis-user mailing list >> qgis-u...@lists.osgeo.org >> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user >> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user >> > > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer >
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