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QGIS is a free, open-source, cross platform geographical information system

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Re: QGIS is a free, open-source, cross platform geographical information system

#121
I use QGIS to make NDVI maps for my farm from the Sentinel satellite data. Combined with yield maps from harvest, I can come up with soil sampling sites and create a variable rate fertilizing plan. I then plug that into AgOpenGPS for the fertilizer spreader.

Stallman approved.

Re: QGIS is a free, open-source, cross platform geographical information system

#122
post #70
post #66

QGIS is a very useful tool that I often rely on for quick exploration of datasets in my work. But dear god the UI is in desperate need of a huge overhaul by someone who knows what they are doing. Massed rows of toolbars with tiny icons, lots of unintuitive behaviour, and a few weird quirks. It's a very powerful tool, but so much of its utility is completely inaccessible without tutorials and videos to explain it.

Used QGis for the first time a couple of weeks ago. Could only used it with the help of ChatGPT. But, I got what I wanted in a reasonable amount of time.

The website has some really good tutorials you can knock out in an afternoon that teach you the basics of using the interface, along with the more important stuff about GIS terminology and jargon.

Re: QGIS is a free, open-source, cross platform geographical information system

#123

If you are in an enterprise setting and you currently evaluate ArcGIS vs QGIS, pick QGIS and thank me later. ArcGIS Enterprise is a piece of software that feels straight out of the 90s and has no native linux binary (can be started with wine). It is expensive as hell and resource hungry.

This comment is especially funny to anybody who's run QGIS

Yes, it has a better UI than ArcGIS, and uses less memory, but only slightly so. It still looks like it escaped from 1995's Neckbeard Labs, is clunky as heck, and eats tons of memory as well.

It's still a great piece of software, don't get me wrong. I wouldn't trade it for any other GIS tool. But there's a long way to go for GIS software.

Re: QGIS is a free, open-source, cross platform geographical information system

#124

Earlier quoted context omitted.

It's sadly the norm for monopolistic industry-specific software. You see the same lack of due diligence in SCADA software and the like.

How is it monopolistic?

ArcGIS has essentially no competition in their industry and market. The open source alternatives are not as fully featured, etc…

It’s roughly the same story as with MS Office vs its alternatives. They exist, but 99% of enterprises will use only the Microsoft suite.

Re: QGIS is a free, open-source, cross platform geographical information system

#125

If you are in an enterprise setting and you currently evaluate ArcGIS vs QGIS, pick QGIS and thank me later. ArcGIS Enterprise is a piece of software that feels straight out of the 90s and has no native linux binary (can be started with wine). It is expensive as hell and resource hungry.

What about library support/APIs if you want to embedd gis functionality in other applications? Does QGIS provide widgets etc?

Re: QGIS is a free, open-source, cross platform geographical information system

#126
post #29

Earlier quoted context omitted.

its good for teaching, otherwise it may be super clumsy with large layers and this is unsolvable in the near future. ref. ticket. even so, we must admit, is still the most comprehensive opensource something to compete with esri.

So weird to see this comment. QGIS powering government GIS groups and used by major geoscience and mining companies.. working with national sized vector and raster data.

Have you tried loading 500k features into QGIS? Well, try it and we talk again.

Govs used QGIS as alternative to pricey ESRI subscriptions, but come to realize that it is struggling even as a viewer. Happily latest versions allow simplification of features on the server side, but these are very new QGISs

also take a look here

https://github.com/qgis/QGIS/issues?q=is%3Aissue%20state%3Ao...

Re: QGIS is a free, open-source, cross platform geographical information system

#127

Earlier quoted context omitted.

How is it monopolistic?

ArcGIS has essentially no competition in their industry and market. The open source alternatives are not as fully featured, etc… It’s roughly the same story as with MS Office vs its alternatives. They exist, but 99% of enterprises will use only the Microsoft suite.

But that doesn't imply being monopolistic, does it? It's just the only game in town unless they're killing off the competition.

Re: QGIS is a free, open-source, cross platform geographical information system

#128

If you are in an enterprise setting and you currently evaluate ArcGIS vs QGIS, pick QGIS and thank me later. ArcGIS Enterprise is a piece of software that feels straight out of the 90s and has no native linux binary (can be started with wine). It is expensive as hell and resource hungry.

+100. There is very little QGIS cannot do as well or better than ArcGIS. For any shortcomings, there are generally other specialized tools that can fill the gaps. It's really just a training issue more than technical one at this point imo.

There is exactly one thing that I would have ever needed ArcGid for and thats for Non Rectangular Map Borders. That does not yet exist in QGIS. But i managed to do using a GMT.jl.

Re: QGIS is a free, open-source, cross platform geographical information system

#129

Earlier quoted context omitted.

Been using QGIS for about 6 years now for doing manual data analysis, as well as GDAL and Spatialite in C++ for creating/saving datasets and geopandas, Shapely, pyproj, etc for automated analysis. QGIS is an odd duck. Part of the complexity of using it is the fundamental complexity of GIS software. There’s way more background info that I didn’t know (what do you mean a latitude and longitude doesn’t mean anything wit…

> what do you mean a latitude and longitude doesn’t mean anything without a bunch more info?! Is the more info just the coordinate system like WGS84, or am I missing something else?

There are many different coordinate systems that aren’t WGS84, and there are different epochs associated with them as well. Some of the use latitude and longitude, some of them use easting/northing, etc.

The worst part is that if you don’t get it exactly right, you’ll still get answers that look right but are shifted by maybe 1-3m. As an example, we had a field team out with a Trimble survey stick with RTK (nominal accuracy 1-2cm) that they were using to cross-check data from our aerial survey platform. We had laid out a bunch of targets on the ground, which they surveyed the corners for. Most of the time there was a fantastic match between the aerial survey data and the ground truth data, but occasionally there was a pretty large offset. As I discovered WAY too late, exactly one of the cellphones that ran the Trimble app had its coordinate system set to one of the Canadian CSRS frames instead of WGS84: https://natural-resources.canada.ca/science-data/science-res...

Edit: naturally, they just handed me the coordinates in a CSV file that they’d captured. The Trimble app + whatever data collection app didn’t actually record the reference frame.

Re: QGIS is a free, open-source, cross platform geographical information system

#130
post #66

QGIS is a very useful tool that I often rely on for quick exploration of datasets in my work. But dear god the UI is in desperate need of a huge overhaul by someone who knows what they are doing. Massed rows of toolbars with tiny icons, lots of unintuitive behaviour, and a few weird quirks. It's a very powerful tool, but so much of its utility is completely inaccessible without tutorials and videos to explain it.

Been using QGIS for about 6 years now for doing manual data analysis, as well as GDAL and Spatialite in C++ for creating/saving datasets and geopandas, Shapely, pyproj, etc for automated analysis. QGIS is an odd duck. Part of the complexity of using it is the fundamental complexity of GIS software. There’s way more background info that I didn’t know (what do you mean a latitude and longitude doesn’t mean anything wit…

>There’s way more background info that I didn’t know (what do you mean a latitude and longitude doesn’t mean anything without a bunch more info?!) that’s necessary to use it effectively.

That's sort of true, but QGIS could do a much better job of helping you manage this stuff, figuring out the right CRS, helping you make sense of clashing CRS'es etc.

> highlighted points, whether selected through the selection UI or through the data table… should always have a higher Z-order than the other points around them

I haven't come across that one much, but generally I wish the UI around querying data was much better. First it takes me ages to find the one specific tiny little button which lets you query stuff, then you have to remember to pick which layer you want to query, etc etc.

It's the most obvious mode, and should be the default, and not buried amongst a dozen other icons I'll never use.

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