A belated #30DayMapChallenge 2024 round-up. 30 days, 28 visualisations. First time in four years I missed not one, but two. For some reason, it was a pretty rough month. Still mostly the #rayverse and #rstats where possible.
A belated #30DayMapChallenge 2024 round-up. 30 days, 28 visualisations. First time in four years I missed not one, but two. For some reason, it was a pretty rough month. Still mostly the #rayverse and #rstats where possible.
#30DayMapChallenge, Day 30, The Final Map. Konbini of Toyto.
#rayshader adventures, an #rstats tale
#30DayMapChallenge 2024 Day 30: The Final Map
I've spent a lot of time playing with Relative Elevation Models (REM's) recently.
In floodplains, lidar digital elevation models (DEMs) can be converted to relative elevation models (REMs) to better visualize river features that are difficult to discern using an aerial photo or lower-resolution DEM.
This is my favorite - The Wilamette River between Corvallis and Salem Oregon. I used the IDW method detailed by Dan Coe Carto.
#30DayMapChallenge Day 28: The Blue Planet
I've created globes with rivers from #HydroSHEDS & bathymetry from Ocean RGB raster tile in #QGIS using the #MapTiler & Globe Builder plugins. Check out the beauty of our planet's waterways & ocean depths!
Learn more about #datavisualisation of HydroSHEDS:https://youtu.be/GpMp5NY_ngs
https://courses.gisopencourseware.org/mod/book/view.php?id=1009
#30DayMapChallenge · Day 28 · The blue planet. I've shared the Mid-Atlantic Ridge in shaded relief. And I've shared it in hexagons. Now see it in lines.
Day 28 - Blue planet
This started as a simple map of CalMac's routes (Scotland's beleagured national ferry company) but it morphed into an homage to vintage travel posters.
Made in #inkscape
#30DayMapChallenge Day 27 - Micromapping
We were asked, "could you make a map of the main government campus?"
And we asked ourselves, as always, "can we do this with #OpenStreetMap data?"
We *could*, but we decided it would look better if we micromapped it first.
This isn't even all the data we added, but here's a lot of it. Highways as areas, parking spaces, solar panels, etc.
Those aren't trunks part of the tree symbol, those are individual shrubbery areas.
Edit: labeled solar farm.
#30DayMapChallenge · Day 27 · Micromapping. Almost there...this is Lombard Street, San Francisco.
#rayshader adventures, an #rstats tale
@catsalad so, #30DayMapChallenge Day 23: Memory?
(yes, I know this is probably not yours, but still... :)
#30DayMapChallenge · Day 26 · Map projections. Another one. New Zealand often gets left out of maps. In fact, the code I used to turn the global forest cover map into circles left out NZ! I felt bad so here's a forest cover map of NZ.
#rayshader adventures, an #rstats tale
#30DayMapChallenge · Day 26 · Map projections. Thought this was a new idea but had a nagging suspicion I saw it before. And indeed I have! It was created by the amazing @pokateo! Here's my attempt: Ten ways to draw Greenland.
#rayshader adventures, an #rstats tale
#30daymapchallenge Day 26 (Projections): New Zealand - a victim of projections. World maps have a bad habit of dropping New Zealand. If putting it though the alternative distortion is preferrable remains an open question.
With all the geoscribble promotion here, it's easy to forget what are those big circles in the notes mode. Yup, those are OSM Notes.
Need to remap the area later or leave a message to other mappers? Tap (+) and enable the "Publish to OSM" switch.
Okay this is not a map, but has a medium-sized PostGIS query underneath.
Every Door operates on a one-step principle: you map and forget. But for notes, it is two steps: record, and map at home. Still, I forget nevertheless.
So I made a special web page for GeoScribbles, which lists, who mapped, where, and when. Meaning, I see all my notes grouped, and can mark whether I have processed them.
And indeed, I've already forgot about a walk I had a week ago. Time for JOSM!
When mapping long into evening, it's easy to lose track of time. At some point my phone switches the screen to grayscale, to make going to sleep easier. I have seen Every Door this way much more than once.
#30DayMapChallenge · Day 25 · Heat. Considered calling it quits because I'm spent. But here I am again with a visualisation of average monthly universal thermal climate index in 2023. This index measures human thermal stress and discomfort in outdoor conditions.
#rayshader adventures, an #rstats tale
Given that Every Door does not upload changes automatically, they can lay in its database for weeks. But don't worry of conflicts: just before uploading, it downloads fresh versions of all modified objects, and does a three-way merge for those that have changed. So no tag changes will be lost, and no special panels for conflict resolution needed.
If some changes do fail to upload and get stuck, delete them from the settings → pending uploads panel.
OSM is not a single thing, as its data model implies, but a mess of hundreds of layers. Some visible, some aren't. Some attract corporate interest, some cause community fights now and then. Some neglected.
With Every Door, I am targeting POI in OSM: previously so hard to maintain, mappers just tended to ignore them, or focus on a narrow subset.
Now I can finally trust search results in my city more than Google's or any of the open alternatives. And we're just starting!
#30DayMapChallenge · Day 24 · Only circular shapes. World forest cover in circles.
#rayshader adventures, an #rstats tale
Day 24 - Circles
Decided to incorporate the 'circle' theme into my map too, so here are the locations of Scotland's stone circles.
The small circles around the coastline were the easiest thing to create thanks to #inkscape's Distribute along Path feature.