nr_aus
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Save as GeoPackage Layer Options - use of Description and Identifier
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6 votes

This information gets added to the Metadata statement of the layer. in QGIS, if you right click - properties - Metadata, you will see where the information is and available to edit. I believe ...

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Merging touching lines in QGIS
6 votes

Have you tried simply dissolving your data into your single feature dataset, then perfoming a multi-part to single part? Such that each geometry would then be its own new record? At a much grander ...

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Find latitude and longitude point in geometry field
5 votes

The coordinate systems of the datasets need to match when using STContains. https://docs.microsoft.com/en-us/sql/t-sql/spatial-geometry/stcontains-geometry-data-type?view=sql-server-ver15 "...

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QGIS Plugin for Shortest path with multiple Stops
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5 votes

I would recommend using the Travelling salesman algorithm for this one. This has been implemented using the Grass Plugin, which can be found under v.net.salesman. There is further reading here https://...

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Can't open DWG file in QGIS 3.16
5 votes

Its probably the version of the DWG - QGIS doesn't like newer versions of CAD files. Your best bet is to try and save it as an older DWG/DXF file.

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Using QGIS SpatiaLite/Geopackage databases on shared network drives
4 votes

I have a similar setup and have in the past experienced similar issues. It is hard to say exactly what the cause of this is, but as per the comments, geopackages are SQLite DB's and aren't really ...

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Saving PDF files as part of QGIS Project
4 votes

Is there a way in which the actual report can be uploaded to the QGIS project file To your specific question I believe the answer is no. However lets backtrack a bit. No actual data itself is '...

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Ceating cross-sectional styled visualisation of multiple layers in map
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4 votes

possibly one option is to create a 3d View in QGIS. here is a link to using 3D views, for creating a DEM. but the same concepts could apply. https://opengislab.com/blog/2018/3/20/3d-dem-visualization-...

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Working with multiple layers in different CRSs using QGIS
3 votes

If you have a DEM, that exists in zone 2207, and you set its projection as 2206, you will get odd results. Likewise, even if you set the zones of 7 raster files correctly, merging them into 1 single ...

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Does GeoPackage support simultaneous editing?
3 votes

Negativo, nadda, nope, nine, sorry no. More information on this tread as well. But in short, geopackage files are not design for multi-user editing. They have no 'middleware' server application ...

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PostGIS: Does re-creating a spatial index after inserts or updates affect performance?
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3 votes

Im assuming your talking about the doco here https://postgis.net/workshops/postgis-intro/indexing.html I would probably research on general SQL DB's indexes, and under what circumstances to rebuild ...

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How to calculate the shortest path of adjacent points, from an origin to destination points? (ArcGIS Pro/ArcMap)
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3 votes

The correct way to perform shortest path is to use Travelling Salesman algorithm, ( as per FelixIP comment) - which has been implemented in ArcGIS in the Network Analyst extension. https://desktop....

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Problem with spatial join of large shapefiles
3 votes

You don't have to use PostGIS. There are other options available to get around the space size. A Geopackage is probably the easiest option. Size of the output file will be driven by: Number of ...

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GEOS geoprocessing error when using difference tool in QGIS
3 votes

Not a very useful error message is it! Firstly, lets see if we can do something about that. You can check the QGIS log panel. (Right click on tool bar > Log Messages Panel) This may give you more ...

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Update virtual field on demand (not permanently) (QGIS)
3 votes

Virtual fields are great, but sometimes I think we get carried away with their usage within QGIS. (don't worry, im guilty too). From a high level DB engineering perspective, ideally, calculated fields ...

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Creating QGIS Plugin starting from Graphical Modeler
3 votes

Yes you sure can. Check here if you are using an older version of Python. Converting models from QGIS to Python scripts? I am using 3.14, and inside of the Model Designer, there is a button at the top ...

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QGIS: OGR error when editing Geopackage layers : database is locked
3 votes

ok unfortunately I performed 2 different resolution activities, and im not sure which activity resolved the problem. First Action - I had previously run a python script (outside of QGIS) which had ...

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How to use the Intersects function in the Field Calculator of QGIS?
2 votes

This is an older question and the accepted answer was probably correct at the time, however I believe that with new versions of QGIS, (specifically 3.16) an introduction of the overlay_intersection (...

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Trying to understand QGIS LRS plugin - How to implement?
2 votes

The first question you have to ask yourself is "Is linear referencing the solution I need to solve my downstream problems?" Road networks are notorious for being difficult linear networks to ...

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Layer has no coordinate reference system/unknown spatial reference
2 votes

Do you know roughly where the roads are? If they are local to where you live, then they are possibly in a local projected coordinate system. For example, I live in Perth, Australia. If i had the same ...

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How to add a new field and overwrite existing feature class by using FME 2021
2 votes

From a debugging perspective, try the following: As above with Fezters answer - Ensure that you set your writer to 'Drop and Create' it will drop the current FeatureClass (ie: remove it) and then ...

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Duplicating data for use in new ArcMap project
2 votes

In short - Right Click > Data > Export Data then repoint your Data Sources Good question and often I find one having to explain to CAD Users where the project itself contains all the data, so ...

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ArcGIS Desktop vector symbol levels: why a maximum of 32 colors?
2 votes

Its possible that the 32 limit possible exists as a limitation of the software being able to perform that statistical classification to more than 32 classes, or possibly because from a visual ...

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Slow rendering with layers when making WMS call on GeoServer
2 votes

I have had this problem before, ill see if i can explain what I remember. The problem existed with Apache. We had load balancing implemented which enabeld concurrent apache tomcat sessions. This ...

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Optimize ArcGIS Feature Service Layer display in QGIS
2 votes

Three questions here: 1) What steps can be taken to improve rendering performance of ArcGIS Feature Server in QGIS 3.10.12.? 2) Are there other settings that can be manipulated to increased rendering ...

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How can a MXD point to a path that does not exist?
2 votes

Ok im using 10.3, so there might be some differences here. When you create a new Database Connection - the sde file itself is saved in AppData folder by default. When you right click > Properties ...

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Downloading pitem file from ArcGIS Online as shapefile using QGIS
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2 votes

Ive just tested the link to the data above in QGIS, so it does work. The URL is: https://services9.arcgis.com/IkktFdUAcY3WrH25/arcgis/rest/services/Global_Species_Richness_Patterns_for_Fishes/...

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How do coordinate systems in QGIS work?
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2 votes

A layman way of explaining what QGIS is doing. Imagine you have a photo of your house. Lets say its an aerial photo that you got from Google Maps (except a bit better quality and resolution. Now lets ...

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QGIS Regression Tools using only feature data
2 votes

have you tried this one? Multiple Linear Regression(Shapes). http://www.saga-gis.org/saga_tool_doc/7.8.0/statistics_regression_12.html Interestingly the documentation refers to something called Trend ...

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When to use spatial regression for the proximity analysis
2 votes

Sounds like an interesting piece of work. A simple statistical solution may be to map linear regression residuals of each house, based on distance vs property value change. (There are a million other ...

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