Re: [Qgis-user] Refresh layer at interval
Hei! Thank you for the answer! I presume everybody would like the same functionality as i wish to have. Sent from Yahoo Mail on Android On Mon, Nov 2, 2020 at 12:27 PM, Raymond Nijssen wrote: Hi Robert, This has been asked before. I think currently this option only redraws the layer and does not (always) refresh the data. At least not for a remote layer. It has been discussed before here: https://lists.osgeo.org/pipermail/qgis-user/2020-April/045348.html and here: https://lists.osgeo.org/pipermail/qgis-developer/2020-April/060938.html Kind regards, Raymond On 02-11-2020 11:20, nagyrob...@yahoo.com wrote: > Thank you Áron. > > Sent from Yahoo Mail on Android > <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature> > > On Mon, Nov 2, 2020 at 11:09 AM, Aron Gergely > wrote: > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org <mailto:Qgis-user@lists.osgeo.org> > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > > > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] [QGIS-Developer] Refresh layer at interval
Thank you a lot!
Sent from Yahoo Mail on Android
On Mon, Nov 2, 2020 at 12:25 PM, Richard Duivenvoorde
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|
>>
>>
>> ___
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>>
>
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Re: [Qgis-user] Refresh layer at interval
Thank you Áron. Sent from Yahoo Mail on Android On Mon, Nov 2, 2020 at 11:09 AM, Aron Gergely wrote: ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Refresh layer at interval
Hi All!
I am trying to understand the behavior of Layer->Render-> Refresh layer at
interval in QGIS
- I sat up a flask rest api which serves a geojson.
- I added the geojson to QGIS via Add Layer->
- a. Protocol HTTP/cloud/etc
- b. Type: HTTP
- c.URI: localhost/points.geojson The points are represented on the map
correctly
- 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
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[Qgis-user] Refresh layer at interval
Hi All!
I am trying to understand the behavior of Layer->Render-> Refresh layer at
interval in QGIS
- I sat up a flask rest api which serves a geojson.
- I added the geojson to QGIS via Add Layer->
- a. Protocol HTTP/cloud/etc
- b. Type: HTTP
- c.URI: localhost/points.geojson The points are represented on the map
correctly
- 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
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