I have done a small smattering of posts over the years on cartography and parks. I thought I would share in this post some of the work we have done toward this end for mobile and desktop web. The app itself (still awaiting a full port to webgl) can be found here. Here we take a bit of inspiration from NPS Maps and some of … Continue reading Cartography and Parks
In previous maps we looked at Class B, C, and D airspace. Let’s add in Class E0 and E5… (not yet in 3D): (Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL) Previous posts: https://smathermather.wordpress.com/2014/10/25/airspace-is-complicated-and-so-i-abuse-postgis-once-again/ and https://smathermather.wordpress.com/2014/10/25/airspace-is-complicated-and-so-i-abuse-postgis-once-again-reprise/ Continue reading Airspace — A deep rabbit hole
In the previous post: https://smathermather.wordpress.com/2014/10/25/airspace-is-complicated-and-so-i-abuse-postgis-once-again/ we explore the 3D shape and complexity of controlled airspace. Now here’s the rest of the code. We’ll add our affine transformation ala Seth Fitsimmons: And integrate that into our original function: And voila! Let’s take a look at Washington, DC and surrounds, another nice complicated example: And again with map tiles by Stamen Design, under CC BY 3.0. Data … Continue reading Airspace is complicated — and so I abuse PostGIS once again — Reprise…
Let’s ignore for a moment the drone hobbiest / enthusiast. What is the shape of airspace for airplanes and commercial and government unmanned aircraft flying under Certificates of Authorization, and how can we visualize it? Thanks to Anita in the last post, we have the Class B,C,D,E Airspace Shape Files which helps us define the overall shape of controlled airspace. But, these are 3D things. … Continue reading Airspace is complicated — and so I abuse PostGIS once again
Following up on my previous post, I have started to detail the how of our parks map rendering works, including a GitHub repository with all the code and data to build your own in TileStache. One of these days, we’ll port this to TileMill, but in the mean time, it works and works wonderfully. — Addendum — Truth in advertising– the contours data were … Continue reading Parks Data Cake, part deux
Stamen has a great blog entry on mapping for parks on their blog. It’s a teaser for a deeper dive in mapping parks, and I’m staying tuned, as their write-ups tend to be detailed, thoughtful, and complete. I thought I’d offer my own teaser– a bit of work done collaboratively with GreenInfo Network. It started with their basemap– something they spent a few person-years refining from … Continue reading Parks Data Cake
In a short blog post, I won’t be able to do the NACIS conference justice, but if you haven’t gone and you are a map geek, then I recommend you attend next year’s conference in Pittsburg. First: The People: What a collegial and warm group of people. NACIS was a very welcoming community, an interesting mix of private industry geniuses (ahem, Mapbox, Stamen, Vizzuality etc.), academics, … Continue reading North American Cartographic Information Society (NACIS) Conference (yay #NACIS!)
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
QGIS Compositing, more comparisons… . You guess which is QGIS and which is TileStache… . Continue reading QGIS Compositing, more comparisons
Ever had a workflow on the web that resulted in stuff so nice, you wanted to replicate on the desktop? Ya, me neither until recently. I love the cartography a particular website, know all the bits and pieces of color and effects that go into, but had no desktop application that could do the same. Until now. On the left, QGIS, on the right, TileStache … Continue reading QGIS Compositing, more gushing yet…
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