Map Tutorials! @MapTutorials
280!-character map tutorials, brought to you by @lyzidiamond mapfacts.tumblr.com Joined August 2015-
Tweets37
-
Followers270
-
Following0
-
Likes5
Important question when planning your map process: what format is your data in? If it’s GeoJSON and you’re making a print map, do you need to project the coordinates? If it’s a shapefile and you’re making a web map, how are you going to convert to a web-friendly format?
There’s no way to label everything on your map, but labeling every feature would make the map unreadable anyway. What labels are most important for the map reader? What labels will distract from your map’s story? Labels are hard to get right, but so important for understanding.
API stands for Application Programming Interface, a set of rules for how your code can communicate with a service. There are many APIs for mapping: visualization, data, directions, geocoding, and more. READ THE DOCUMENTATION to learn what a specific API does and how to use it!
North doesn’t have to be up, but whoever is reading your map is gonna expect it to be. If you’re rotating the map at all, be sure to include a north arrow! Corollary: if north is up, do NOT take up space with a north arrow.
It helps to think about making a map as two separate tasks: getting your data in order, and making it look a certain way. The data tasks are usually much more involved, and changing the data after you’ve designed the map is very difficult. Wrangle your data first.
Vector data: points, lines, and polygons with vertices at specific locations. Additional data stored per feature. Scales with zoom. Raster data: an image with data encoded in each pixel. Pixel size is fixed and does not scale with zoom. Can include lots of data, not just color.
What story is your map trying to tell? All maps are biased, so show your biases clearly. Let the user know how the data was collected, what it means, where to find it. Let them tell their own stories if they want.
When making choropleth maps, beware the modifiable areal unit problem. Make sure your map visualizes true spatial distribution in the data!
Trying to show continuous or categorical data on a thematic map? Your design isn't intuitive for everyone. Make sure to add a legend!
Unless you set it otherwise, web maps have a global extent. Make sure to either set pan bounds or design for both populous & sparse areas.
Remove unnecessary data from your map. Too much information makes it hard for the reader to understand the story you're telling.
If you use real-time data on your map, design with the future in mind. Consider what your data will do, set the extent to move with changes!
Heat maps only work if data is spatially continuous. Otherwise, gradients create false data just for sake of style. Be honest with your map!
Cartography asks us: what is the intent of the map? What story should it tell? What questions should it answer? Intent informs everything.
Just because data is spatial doesn't mean a map is the best way to display it. Not showing spatial relationships? Try a chart or graph!
People are going to spend way less time looking at your map than you think they are. Keep it simple and make the theme obvious.
Just because a map is on the web doesn't mean it needs to be interactive. Bells & whistles are cool but can distract from your map's story.
There are 2 types of maps: reference and thematic. Reference maps show where things are. Thematic maps tell stories/show data distribution.
Geocoding is hard because addresses are hard: hard to get data and to parse, non-uniform across locations. Don’t take geocoders for granted!
Vector tiles are only vector data. Vector tiles + style + Mapnik + tile server = raster map tiles. Vector tiles + GL stylesheet = GL maps.
🥔🗺️ ᴘᴏᴋ... @pokateo_maps
28K Followers 3K Following po-KATE-o, first of her name, eater of potatoes 🥔 and maker of maps 🗺️. I make GIS (more) fun by sharing maptastic themes & original mappy memes! 🌐 ᵛᶦᵉʷˢᵐᶦⁿᵉ
Lyzi Diamond @lyzidiamond
5K Followers 2K Following words are work. map person, technical writer, I believe in you, your magic is real.
Kurt Menke - @geomenk... @geomenke
8K Followers 2K Following Danish Resident 🇩🇰 | @SeptimaDK | FOSS4G user/advocate/educator | Author: Discover QGIS 3.x 2nd Ed. | Co-author:QGIS for Hydrological Applications 2nd Ed.
Rene (Hecho En East L... @odoenet
2K Followers 2K Following SoftWhere Engineer, geodev and shit @ esri, but I roll my own https://t.co/KBrKkvqXAq https://t.co/b3Vc6RPJGg
Ujaval Gandhi @spatialthoughts
17K Followers 436 Following Educator | Founder @ Spatial Thoughts | Helping people learn and master geospatial tech - #QGIS, #Python, #GDAL, #EarthEngine | Ex-Google
Steven Kay @stevefaeembra
2K Followers 488 Following steve-fae-embra: Steve from Edinburgh. Web developer, coder, I make maps and CGI using QGIS and Blender. Also on [email protected]
bushu @lostexplorer0
32 Followers 940 Following
Ahmad Abdoullah @ahmad_sourabie
18 Followers 451 Following
Chris Whong @chris_whong
7K Followers 3K Following Urbanist, Technologist, Datahead. Into #dataviz, #opendata, #webmapping and making cities better. Dev Evangelism @mapbox
Manos Lagoudakis @MLagoudakis
298 Followers 584 Following Physical Geographer, working with satellite images for the European Space Agency. Views are my own.
nichins @nichins1
0 Followers 53 Following
@JensWiesehahn@fossto... @JensWiesehahn
812 Followers 746 Following Curious about Remote Sensing, Cartography and Forest Sciences.
Ana Lucía González @anlugonz
2K Followers 4K Following Visual projects editor, @GuardianVisuals. Formerly of the BBC. Into maps. Hecha en 🇨🇴
Gouyon Edouard @EdouardGouyon
2 Followers 20 Following
Jommer Medina @jommermedina
344 Followers 579 Following Geomatics x Envi Eng'g. Teacher. Researcher. Potato-earther. Alikabok sa kalawakan. | Views are mine. Join @propel_engrs!
Nina Sayles @nrsayles
16 Followers 103 Following Urban planning and public health Food systems, food justice, community nutrition Harvard GSD & HSPH Brandeis B.A.
Elizabeth Tulanowski @hethbill
812 Followers 163 Following Geospatial educator and enthusiast, Senior Instructor at CSU, spreading the word about geospatial stuff in Colorado. Also @[email protected]
Jacob Moll @Jmoll45
180 Followers 256 Following What is really important is what you learn after thinking you know it all ~Waite Phillips
Caitlin Dempsey @dmgeo
2K Followers 240 Following Geographer, Science writer Not active here, active on: Geography, maps, and GIS: @geographyrealm Cats: @catexplore
Angelina Calderon @alinapaz
754 Followers 681 Following mostly water 🌊. location and maps. tweets are mine 🐣
Dashiell Robb @allcleargfx
9 Followers 127 Following
Chris Jacob 💉💉�... @CDEJacob
132 Followers 472 Following
Nick Mann @OIHDesigns
124 Followers 645 Following Obvious in Hindsight (OIH) Designs use to make the MultiBoard, the world’s best geology mapboard. Also likes bikes. Follows geologists and others.
Alexander Keil @alexanderkeil
0 Followers 635 Following
Caspar Nielsen @caspar_nielsen
29 Followers 398 Following Historie og geografilærer med en kæmpe kærlighed til fortiden. Elsker naturvidenskabelig undervisning. Hygger sig med GIS
Jessica Garson @jessicagarson
7K Followers 3K Following Senior Developer Advocate @elastic // Prev @Twitter // Always 💻 😱🎤@livecodenyc // Noted thought leader on vegan snacks // Makes music as Messica Arson.
Jim W @jwithy@social.... @jwithy
510 Followers 449 Following Semi-Buddhist nail-biting front-end web-devving hyphenator | 💙 Empathy heart supporter 💙 | he/him | https://t.co/UqnYyAokaw | https://t.co/wjwVXqAjEn
Mapidea @mapidea_com
303 Followers 320 Following Mapidea helps businesses make decisions based on accurate data insights - using the power of Geography.
eric @eric_TYPHOON
191 Followers 124 Following
Martholomew @afrobassist
43 Followers 275 Following
Helge Grut @fra_Arilds_tid
1K Followers 3K Following 1959 jordskiftedommer-92 _ gift _1 datter 3 sønner 6 barnebarn _ webredaktørutdannelse 2001 _ opptatt av digitale verktøy _ GIS/GPS/WWW
mele @pdxmele
917 Followers 2K Following Director of computer people, mom, cat lady, Aquarius. Wishing I was swimming in the warm ocean. Bad opinions & jokes mine.
Steve Collins @slcollins84
46 Followers 937 Following Second half participant that gets mad after receiving unsolicited senior discounts.
Matthew Herman @CarnivalTears
23 Followers 148 Following You are a possum living in the trash can of my heart
Ryan J Frazier @Fargreenhills
497 Followers 473 Following Assistant Professor of Geospatial Technology 🌲🌳🏔🛰 🗺 🐍 views are my own #remoteSensing #gis #cartography #python #trees #maps
Jeff Ingebritsen @JeffIngebritsen
45 Followers 442 Following
Vishnu @iamvishnurajan
124 Followers 563 Following lights are not on. occasionally here to check in on that other website
George Reginald @GeorgeReginald5
38 Followers 4K Following
DanSwick @DanSwick
245 Followers 186 Following
Akshat @always_akshat
322 Followers 3K Following Databases, Distributed systems and AI Architecture @Spot_ai
Trends for United States
You might like
