pov-viewshed on GitHub
GitHub week for me: https://github.com/smathermather/pov-viewshed More to come, but in the meantime, enjoy. Continue reading pov-viewshed on GitHub
GitHub week for me: https://github.com/smathermather/pov-viewshed More to come, but in the meantime, enjoy. Continue reading pov-viewshed on GitHub
Now that GitHub allows for simple attribution of license types (yay!), for my 200th post I’d like to solicit sources for best practices on licensing of code written by and for municipal entities. There are so many OSS licenses, where is it appropriate to assert rights/control, such as with Copyleft, vs. MIT, vs. public domain, and are State Attorney General’s offices generally equipped to address … Continue reading Code license types for public entities
I am working on a project, well, I guess just read the README from the repo (a project which will require a creative rename in the future): https://github.com/smathermather/shape-pov shape-pov ATM, this is a script to write shapefiles to PovRay docs for rendering. Long-term, will be a map tile renderer with 3D support and more. Whats more? Well, while compositing in TileMill and all the Mapnik … Continue reading shape-pov on GitHub
I’ve shared bits and pieces of tree interpolation code (3D tree canopies from LiDAR) on this blog for a few years. I finally got things together enough to post some of this code on GitHub. Currently it has a LasTools dependency, so you’ll have to watch for that license gotcha, but I’ll be phasing out that dependency in future versions. In the future, I’ll do … Continue reading Tree Interpolator on GitHub
A little more refinement to the SQL for building masking fill for hand-placed text on maps. Continue reading Cartographic tricks and tips– making text readable, PostGIS edition, take 3
I have a couple of posts number 1 and number 2 about masking for text. One more from the actual implementation: Continue reading Cartographic tricks and tips– making text readable, PostGIS edition part 2
I promised not to reveal this until first drafts were all submitted, but I’m enthusiastic to say that a PostGIS Cookbook is in the works that I’m coauthoring. Paolo Corti has the lion share of chapters, I am writing 4, Bborie Park has written a couple, as well as a nice chapter by Tom Kraft.
Continue reading “PostGIS Cookbook in the works”
Recall from previous post, http://wp.me/phWh4-qm I played a bit with using convex polygons and buffers to control noisy backgrounds behind text, ala: ——–> I was tired of doing this in the GUI in QGIS, so I wrote some simple code to do it in PostGIS. Continue reading Cartographic tricks and tips– making text readable, PostGIS edition
I upgraded to Ubuntu 12.10. It’s nice, but it means I can no longer run QGIS 1.9 easily, so I’m limping along with 1.8, and without functional python extensions at that. So, when I wanted to merge a directory of 60 some odd shapefiles, I turned to OGR. GIS Programming at http://gis-programming.com/?p=194 shows how to do it on Windows. Here’s the linux/BASH way: Continue reading OGR for merging shapefiles
Credit where credit’s due on the great QGIS Compositing (as well as some stellar forthcoming raster tools): http://nyalldawson.net/2013/03/coming-soon-in-qgis-2-0-blend-modes-for-layers/ I thought I had seen an unusually large spike in my Aussie traffic… . Continue reading QGIS Compositing, credits where due