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Questions tagged [refresh]

Use this tag when referring to refresh capabilities of a GIS application/process

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votes
1answer
44 views

Using PostgreSQL NOTIFY payload in QGIS

I am using the NOTIFY signal of PostgreSQL intensively to update a PostGIS-layer in the map (see https://oslandia.com/en/2017/10/07/refresh-your-maps-from-postgresql/). Additionally to the channel '...
2
votes
1answer
69 views

Set layer rendering 'refresh layer at interval (seconds)' using PyQGIS from python console?

I am trying to use the python console to achieve the following manual procedure of setting each layer to refresh automatically at a specified time interval. The manual process: Layer Properties > ...
1
vote
1answer
83 views

Update QGIS Canvas while debugging

I am upgrading some QGIS 2 plugins to QGIS 3 and need to do some debugging. It appears that the canvas does not update until the code stops running, regardless of any calls to self.iface.mapCanvas()....
0
votes
0answers
33 views

QGIS Styles: How do I save rendering preferences in a style for future automation?

The following is in regard to a point layer in QGIS 3. Under Layer properties > Rendering > 'Refresh layer at interval (seconds)' I have set the interval to refresh every one second. The point ...
1
vote
0answers
121 views

Refresh WFS Layer in QGIS 3.4

I'm working with a GeoServer WFS in QGIS 3.4. If I open two parallel projects with the WFS layer included and successfully change some date over WFS-T in one project, I can't get the new changes in ...
2
votes
1answer
499 views

QProgressDialog in QGIS 3.0 not updating

I am using a QProgressDialog to show the progress of a routine that is running. I found this very helpful question/answer how-to-show-a-moving-progress-bar-in-qgis, but I can not reproduce successful ...
3
votes
1answer
39 views

Setting ArcMap Data Source Refresh Interval?

In ArcGIS Online there is an option to set a refresh data interval. Is there a way to accomplish the same within ArcMap? Specifically, my data source is inside an Enterprise GDB (Oracle). I can ...
3
votes
1answer
464 views

Feature Layer will not refresh ArcGIS Javascript API

I am trying to integrate live point data (worker locations) from Workforce for ArcGIS into a Javascript web app that I am building. The layer loads fine and displays on the map properly, it even ...
3
votes
1answer
189 views

mapCanvas.saveAsImage() doesn't work properly within loop in standalone script (only .PGW)

I have a problem with the export of QGIS 3 interface screenshots. I run stand-alone scripts and one of them launches QGIS and runs script.py with the following code : mapCanvas = iface.mapCanvas() ...
1
vote
2answers
23 views

Refresh a speed data with geoserver

We have a problem using the Geoserver version 2.5.2. We are using Geoserver for a line bus fleet monitoring application. We have a data synchronization problem. I have attached the map that we use to ...
1
vote
0answers
183 views

Auto-Refresh Field that has been Calculated with Python in ArcGIS Pro

Is there a way to get a calculated field to auto-refresh? For example, I have an expiration date field with dates filled in. I have another field that I will use to show the number of days left till ...
2
votes
0answers
117 views

Way to refresh shapefile in Spotfire

I am a beginner in working with geospatial data. What I have done so far: 1) I created a map chart visualization in spotfire. 2) I created a shapefile using QGIS. 3) I added the shapefile in the ...
1
vote
1answer
368 views

What is the maximum theoretical refresh rate for GPS [closed]

I understand that most devices have 1 Hz refresh rate for GPS positioning. I tried to read about the actual GPS implementation but I could not figure out how often the location can be determined. ...
2
votes
0answers
229 views

How to reset the reshape tool in QGIS after 'unknown exception'?

I am using QGIS 2.18.16 and most of the time I have successfully been using the reshape tool to change the shape of polygons. I have snapping and tracing enabled. Occasionally when I right-click to ...
3
votes
0answers
219 views

PyQGIS update/refresh composer legend [duplicate]

I am trying to modify the data source of a raster layer in python, then update my composer and finally save it. To modify my data source I found what is needed here: https://geogear.wordpress.com/...
1
vote
0answers
215 views

Automatic refreshing of Styles and legends in QGIS?

I am a new QGIS user. I come from an Arcgis background, but in my current work for a public administration I must use QGIS for interoperability. As an ArcMap user, I am used to certain "comforts", ...
0
votes
1answer
64 views

Defining refresh interval of map in GeoServer?

Is it possible to define the map refresh interval on the server-side (GeoServer 2.11)? The issue is the following. I send GetMap requests to GeoServer from Kibana (client-side). Once the response is ...
0
votes
1answer
134 views

Refresh Map on HTML page when data change

I am new about Carto and I have a question. I would a HTML page with Carto Maps (using JavaScript) and I would refresh the page when the data on CartoDB change. So I ask if there is a sort of Push ...
2
votes
0answers
124 views

ArcMap basemap layers take a long time to display [duplicate]

Over the years I've often used two of the available ArcMap basemap layers (Imagery and USA Topo Maps) as part of my work. I've noticed that ArcMap consistently takes 10-15 seconds for the screen to ...
11
votes
4answers
4k views

Refreshing open attribute table in ArcMap using ArcPy rather than ArcObjects?

I am running the Calculate Field GP tool from the arcpy in ArcMap. When a row value is updated, it does not show up untill I use the Reload Cache tool (Table Options > Reload Cache). How do I refresh ...
1
vote
2answers
9k views

OpenLayers not refreshing a layer

I have a problem with refreshing layers. I have WMS and WFS layers from one source. I edit WFS and after do wms_layer.redraw(true) but the layer redraws only after zoom in or zoom out. Same with ...
7
votes
2answers
1k views

Reloading cache on open Attribute Table using ArcPy?

I used python to update a shapeFile through cursors. The Shapefile is updated, but there could be an open Attribute Table. Manually you can hit "reload cache" to update the Attribute Table and see ...