Alternatives to Manifold GIS?

The full version of ArcGIS (ArcInfo) with all the extensions is far beyond anything that Manifold can offer, but it is also more than ten times as expensive - so that is a fair comment. The base-price listed above even seems low for the full version so I suspect it is for an ArcView or maybe ArcEditor licence rather than ArcInfo.

QGIS does have digital terrain mapping features, especially when used in conjunction with GRASS (which is now built-in). QGIS is also not especially buggy so that comment is unfair.

GRASS has the ability to do flythroughs and has an impressive array of raster processing tools plus avast number of plugins that make it rival ArcInfo with Spatial Analyst and 3D Analyst plugins combined. GRASS, as a stand-alone GIS rather than a plugin to QGIS, has a 64-bit version for Windows. GRASS has also been around for decades and is very stable.

I do a lot of 3D work and even when I used ArcInfo, I didn't use it for flythroughs because it is too limited for a decent model. I build my own models using Blender and GDAL. Anybody working in the GIS field who is doing more than basic mapping really should not expect to have a one-size-fits-all solution.

As a freelancer I have a toolkit that contains at its core (in no special order):

• QGIS (with GRASS)
• GDAL/OGR
• Python with NumPy and SciPy
• Mapnik
• PostGIS 2 with PgRouting
• SpatialLite
• OpenOffice (you have to write reports to go along with the maps)
• Blender
• Unity
• GIMP 2

I also use a few other more specific packages relating to windfarm work for instance. My point is that you can certainly achieve everything you can in ArcInfo (and therefore Manifold) using FOSS4G software, but you have to be more resourceful and technically adept than if you rely on one of the proprietary products and that is what you are paying for.

EDIT: Just for comparison, as a salaried GIS Professional I was used to having a core toolkit as follows:

• ArcInfo with Spatial Analyst and 3D Analyst
• ERDAS Imagine (for 3D stuff it's better than ArcScene)
• Python
• GDAL/OGR
• Photoshop
• MS Office

I can do everything with my freelance kit that I could with the list above... and I'll leave it for you to do the price comparison :)

While Manifold gives you a complete package, QGIS has many of the capabilities you would look for. There is the basic raster and vector handling, very easy integration with PostGRES, and even spatial SQL (but for that, you will have to have the data stored in PostGRES).

Spatialite is a minimalistic tool that has some really great spatial SQL capabilities. However, spatialite requires you to explicitly reference to spatial indexes to get any decent speed performances.

With python, you can also program in QGIS. There is a very granular object model. The documentation is such that you'll have to understand how OO programming to effectively navigate through it.

Geoserver, working with OpenLayers is a very nice alternative to Manifold IMS. But, I really like Manifold IMS, so most other things are pale in comparison.

Given that Manifold has been without a release in 4 years, and becoming dated in its capabilities, I am doing a lot more with QGIS and these other tools.

I think the only answer that can work is to do what every other low-cost user does, expand your toolkit with a suite of tools and learn new skills. There are plenty of lists of alternatives.

I would say that the criticism of QGIS being buggy is unfair, certainly here it is just anecdotal and so inappropriate here.