Category: POV-Ray

GDAL, Gorillas, Karisoke, Optics, POV-Ray, QGIS, R

Gorilla research in Musanze, Rwanda: Hillshades continued

I’ve been working on base cartography for the research area in Rwanda. Unlike here in Cleveland, we have some great topography to work with, so we can leverage that for basemaps. But, it’s such a beautiful landscape, I didn’t want to sell these hillshades short by doing a halfway job, so I’ve been diving deep. Background First, some legacy. I read three great blog posts … Continue reading Gorilla research in Musanze, Rwanda: Hillshades continued

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Analysis, Ecology, GDAL, Landscape Position, Other, POV-Ray

Landscape Position using GDAL — PT 3

More landscape position pictures — just showing riparianess. See also https://smathermather.wordpress.com/2014/11/22/landscape-position-using-gdal/ and https://smathermather.wordpress.com/2014/11/24/landscape-position-using-gdal-pt-2/ Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL Continue reading Landscape Position using GDAL — PT 3

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Analysis, Ecology, GDAL, Landscape Position, Other, POV-Ray

Landscape Position using GDAL

Hat tip again to Seth Fitzsimmons. I’ve been looking for a good, easy to use smoothing algorithm for rasters. Preferably something so easy, I don’t even need to write a little python, and so efficient I can run it on 30GB+ datasets and have it complete before I get distracted again by the next shiny project (a few hours). Seth’s solution? Downsample to a low … Continue reading Landscape Position using GDAL

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3D, Analysis, github, Optics, POV-Ray

shape-pov on GitHub

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

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3D, Analysis, Optics, POV-Ray

Tree Interpolator 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

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Analysis, Optics, Other, POV-Ray, QGIS

Way beyond red-dot fever– bees hives and overlapping home ranges

Last week, post Boston Code Sprint, I spent a couple of hours playing with bee data, specifically bee keeper data for Norfolk County Massachusetts. My friend Eric (a bee keeper of 4 hives in said county) says that worker bees can fly as far as 3 miles for nectar, but after that approximate limit, they hit diminishing returns relative to the calories they burn. Proximity … Continue reading Way beyond red-dot fever– bees hives and overlapping home ranges

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3D, Other, POV-Ray

3D Renderers– a woefully incomplete survey

Recent exploration into PostGIS 3D tools has reminded me of my love of renderers.  First, there’s PovRay.  PovRay is and always will be my first love.  I’ve done so many fun things with it. In short, PovRay is a mathematicians renderer– mathematical primitives, advanced ray tracing tools, and a C-like control language make for an abstract but powerful environment.  I like to use it with … Continue reading 3D Renderers– a woefully incomplete survey

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