As I mention throughout the review, Oasis montaj shines both for processing and visualizing data while working with gravimetric data . It's 2D and 3D geologic basement models can be really detailed and, depending on the interpreter, can be really accurate. Plus, they can serve as an excellent tool for oil exploration when integrating them with seismic and well log information. Since it is an expensive software, small companies or universities with low budgets would be better using other programming tools.
Geological basement modeling both in 2D and in 3D.
Processing and quality control on geophysical, geochemical and geological data.
Data both in the database or uploaded is provided through a spreadsheet and an integrated profile display window, so it is extremely easy to visualize the information or modify it.
Styling: the styling engine is fantastic with raster styling features that I recognize from apps like Photoshop.
Print layouts: I can set up custom print layouts, and even do automated multi-page atlas style reports that I use for cycling through detailed areas when providing my clients with pdf reports.
Extendable: the plugins are fantastic, and almost anything I need that isn't provided natively with QGIS is available as a plugin.
Community: the QGIS community is passionate about GIS, and are always ready to help. There are great training resources available online.
Making maps in QGIS is a bit clunky. I also find it to be extremely unintuitive. For basic GIS, it is great, but I would much rather make maps (for publication purposes) in ArcGIS.
Editing and adding feature layers is not very intuitive. Changing colors of added point or line features is a rather convoluted process.
ArcGIS has a huge selection of online courses, and if you have the appropriate license, you can access most for free. I found these to be very helpful when dealing with map projections and other issues. However, QGIS does not have a large library of courses specifically made for that program.
I wasn't a GIS user at all when I started using QGIS, nor did I have any background working with data in anything other than Excel, and as a result, I struggled quite a lot in the beginning (it's not quite Google Maps). But having said that, I haven't come across anything that I couldn't do with a little help from the online community. I've done complex spatial analyses on large datasets of metropolitan cities, designed custom multi-page pdf reports that automatically cycle through different areas of an area, etc.
And the GIS staff that I've appointed, after their initial resistance, took to the tool like a fish to water, and I haven't heard them complain after starting to use the tool for a week or two.
But if you're new to GIS, be patient and invest some time to learn how to use the tool. It is absolutely worth it.
Even though there is a no dedicated support team for QGIS (or at least we are not aware of it), there is a huge online community and a large number of forums catering to every question you may have regarding any particular functionality of QGIS. So, you have a lot of help available but you will have to sift through it on the web.
QGIS is open source and freely available for Windows and Mac iOS Geographic Information System Software. QGIS is highly customizable as per project requirements and different application usage. QGIS has ample tools and plugins that are useful for the analysis of raster and vector data. It also supports GRASS, GDAL, and SAGA tools.
Using oasis montaj allowed to work on several projects for gravimetric data interpretation that represented a great profit for our business.
Oasis was an excellent learning tool that brought profit to our university since all the work we did were actual problems that when solved generated profit for the faculty
QGIS gives us more impactful data on children and maternal health issues, which in turn has helped us establish more programs, relationships, and funding opportunities because of the excellent data presentations we can give.
QGIS has allowed our staff to improve their data analysis skills, improving our workforce across the board, with or without the direct use of geographic data.
QGIS has required a lot of staff time to learn, but the ROI on time spent vs the reports we produced afterward has been well worth it.
