Geographic Information Systems Questions, Problems & Solutions : TransWikia.com ~ Page 519

PostGIS ST_Area unexpectedly returns 0

Can someone help me understand why the following ST_Area query returns 0:SELECT ST_Area(ST_SetSRID(ST_GeomFromGeoJSON('{"type":"Polygon","coordinates":[[[-180.0,0],[180,0],[180,80],[-180,80],[-180,0]]]}'), 4326)::geography); st_area--------- 0(1 row)but changing the coordinates slightly gives a...

Asked on 11/26/2020 by strixcuriosus

1 answer

ESRI IdentityManager.registerToken unable to register Multiple servers

I have multiple secured service that needs to be added to my map for which I need to register multiple servers using ESRi IdentityManager.registerToken method ...

Asked on 11/26/2020 by Muthu VR

0 answer

Geoserver WMS, WFS and Rest difference

I am new at geoserver. I connected to databse from admin panel and published layers. But I could not understand difference of WMS, WFS and Rest service. What is the...

Asked on 11/26/2020 by boliwe

2 answer

Print identify results QGIS

I want to print the results of the identify features, I know that there is a way to do it with the Python console, but the thing is that i...

Asked on 11/26/2020

1 answer

Estimating kernel bandwidth function with cross-validation gwrr package?

I am relatively new to R. I am attempting to use the gwrr package because I suspect that local collinearity may be an issue in my geographic weighted regression model....

Asked on 11/26/2020 by Smky29

1 answer

Cannot use Attributes with special Characters in the Popup content template

I tried to use an Attribute with an '@' in its name in the Popup content template, and it just displayed the query. I also tried to use other special...

Asked on 11/26/2020

0 answer

Leaflet GeoJSON sublayers checked not working

I have been struggling with division of my geoJSON sublayers, as perLeaflet geoJSON sublayers checked on off. I used the proposed code, which seems to bring a nice...

Asked on 11/26/2020

0 answer

Can I make an Action on QGIS to open a file(.tiff) on an attribute table directly to Photoshop

Here is the sample file image to be opened.Is there's a way to open an image file (.tiff) on the attribute table using an image viewer like Photoshop. Can...

Asked on 11/26/2020 by potski

1 answer

GeoServer - Render style of points based on URLs saved in a field of the table using YSLD

I am new to styling in GeoServer and was wondering if there is a way to style points in a table based on the external URLs defined in one of...

Asked on 11/26/2020 by P G

1 answer

Error in overlay - formula not vectorized

I've run into another error while trying to get my predictive model to work. My base model is basically done (extracting locational parameters from archaeological sites in an area, and...

Asked on 11/26/2020 by Bianca Wolf

1 answer

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