The Web GIS Duel: Final Thoughts This is a continuation of Mark Balwanz’s blog posts on his creation of web mapping sites using both ESRI...

The TuGIS training workshop on March 20, 2017 is completed – you can see the workshop evaluations below: The workshop evaluations are in...

previous video, I showed how Radian studio can read data directly from PostgreSQL, SQLite, and also easily exchange data between them.  ...

As many of you know, Manifold Software, Ltd. has just announced the release of Radian Studio.  To help people learn Radian,...

As the years passed, I came out with a number of other documents in the series: How do I do that in Manifold SQL, How do I do that in...

Manifold Software Limited just released Radian Studio today.  So, to kick things off, let me show you one of the coolest features I found...

#TUgis2017) is on March 20/21, 2017.  I first attended TUgis in 1990, and it is always a great conference.  It is not too large, so it is...

As the years passed, I came out with a number of other documents in the series: How do I do that in Manifold SQL, How do I do that in...

GIS Programming students presented their programming projects to ESRI. First, I cannot say enough to thank ESRI for taking time out of...

I thought I would show you how I’ve been working with my students in my GIS Programming class, and showing them SQL, Python, and ArcGIS....

I love using forms in Manifold GIS to rapidly create applications for users.  Sure, you can create world class forms and applications...

Most of you know, I love spatial SQL.  I also love PostGIS and ArcGIS – can’t we just all get along?  Well, yes we can.  In this case,...

This is something I’m sure many of you already know, but it was new to me, so I figured that I’d share it here.  My student, Carl Flint,...

I’ve always been proud of our Salisbury University GIS students, and love to push them as far as their little minds can handle it.  You...

This review of made by a former student, Brady Woods.  Brady is a GIS Analyst, and after taking my Open Source GIS course, he immediately...

A seminar on spatial SQL at Stirling University (October 31) A lightning talk at the 6th Annual QGIS User Group Meeting (November 3) A...

Have you ever sat in a lecture and been totally confused?  I know I have.  I wished the Professor would either slow down, or that I had a...

It’s been awhile since I’ve done any Manifold stuff, so I thought I would show you how to break up a vector file based on a unique...

Just thinking out loud here.  I’ve always been bothered by the complexity of Moran’s I.  Actually, it’s not complex, it’s just math....

On the Manifold GIS discussion board, someone asked about updating a polygon layer with the distance of the farthest pair of vertices for...