Gavin Rehkemper

Top 5 Interesting Basemaps of 2019

5. Charted Territory

This basemap takes its inspiration from a printed atlas plate and pull-down scholastic classroom maps. (more details)

Avo Patlong took this basemap and modified it into a “1950s styled” version.

4. Western Map

Elizabeth Sutherland at the Western University of Canada created this map in the style of the WU school colors. (more details)

3. Seasons

Andrew Skinner and the Esri Basemaps team put together a series of four basemaps, each one representing one of the seasons of the year. It has minimal labels and is designed to draw attention to your thematic content.

2. Pop Art

This basemap celebrates the “pop art” movement from the 1950s-1960s. (more details)

1. Breath of the World

Jonah Adkins created a vector basemap replicating the style of the Nintendo video game The Legend of Zelda: Breath of the Wild. (more details / item page)

Honorable Mentions

I wanted to list a few more basemaps here that I found notable:

Newspaper – This basemap, designed by Esri, has been around for a few years but I still enjoy the newsprint look and feel.
Primary Colors – I created this map for the January Codepen challenge – it focuses on three primary colors – blue, red, yellow.
A Children’s Map – Created by Andrew Skinner, focuses on simple, childhood themes.

Do you have an idea for a basemap of your own? Create your own in the ArcGIS Vector Tile Style Editor. (Step by step guide can be found here.) If you do, please post the link in the comments below!

Three Tips to Reduce Personal Data Tracking in 2019

1. Switch to Firefox

Why: You’re probably using Chrome right now. Google is the maintainer and distributor of Chrome, and have recently been making some decisions with the browser that are not in favor of privacy. Firefox has been making performance strides over the past few years and is basically as speedy as Chrome now, and is a much more privacy-respecting browser.
How: Download and install the desktop browser. Don’t forget to set it as your default browser. Go into Options > “Privacy and Security” and enable “Block Trackers: Always”, “Block Third Party Cookies: All”, “Send Do Not Track: Always.” Use Firefox Sync to sync your bookmarks and other settings securely.
Bonus: Install Firefox and/or Firefox Focus on your phone.

2. Switch to DuckDuckGo

Why: Google tracks every search and uses it to target advertising. If you’re logged into your Google (Gmail) account, they will associate your searching patterns with your email patterns to build a powerfully accurate and personal profile on you. DuckDuckGo is almost as good as Google in terms of search results, and does not collect or share your personal information.
How: Go into your web browser (Firefox, Chrome, etc.) settings and change your default search provider to DuckDuckGo.

3. Block Facebook at the DNS level

Why: Facebook tracks you across the internet using embedded “like” buttons that websites voluntarily place on their sites. Whether you’re logged in or not, they can track you as you browse the internet without your consent.
How: Add these entries to your hosts file. Instructions are OS dependent, and are at the top of the file.

St. Louis Imagery – 1990 to Now

What kind of changes to the built environment happened in your city within the past 25 years? Looking at and comparing aerial imagery can be an informative and compelling way to investigate changes. In St. Louis, many large building developments have happened over the years including:

The St. Louis Arena Demolition
The building and opening of Terminal 2 at St. Louis Lambert International Airport
The demolition of Busch Memorial Stadium and the construction of the “New” Busch Stadium

… and much more. Luckily for the St. Louis region, the MSDIS maintains imagery services across different years. I recently found one of their imagery services from 1990 and put it into an application to compare it to more recent (I think ~2015) imagery. Check it out:

(full screen)

I’ve added a few preset locations to the application to some heavily changed, interesting areas. What areas of interest do you have? Let me know in the comments below.

Getting the Microsoft US Building Footprints into ArcGIS Pro

Update: there’s now an easier way to get this data into ArcGIS Pro. Please see the script that is linked in Arthur’s comment here.

—
Last week, Microsoft Released 125 million Building Footprints in the US as Open Data. This is a pretty exciting release of open geospatial data.

If you go to the data download page and grab one of the state json files, if you try to load this into ArcGIS Pro with the JSON to Features tool, it’s currently failing for me. I’m not totally sure why it’s failing — maybe because of the format or size of the JSON file. To get around this issue, let’s convert the GeoJSON file to Esri JSON features before importing.

To do this conversion, we’ll use the arcgis-to-geojson-utils tool.

Prerequisite: NodeJS installed.

Create a new folder
In that new folder, save one of the JSON files from the data source. I recommend a small file like Washington DC for your first run. (** more on that below)
In that new folder, open a terminal and run: npm init … and answer all the questions
Then run: npm install --save @esri/arcgis-to-geojson-utils
Create a new file: index.js and put in the following script:

… replacing “FILENAME.json” on line 4 with the name of your input file that you downloaded above.

Finally, in your terminal run: node index.js. This will save a file called “out.json” that you can then input into the JSON to Features tool in ArcGIS Pro to get access to this data in Pro.

Note (**) that this script will only work for smaller sized files. The large state files that are greater than 200MB, you may need to split those up and run them separately, or write a script that loops through the JSON one line at a time. If you do this and want to share, please post in the comments below.

Date July 2, 2018
Author Gavin Rehkemper
Comments 1 Comment

National Park System

If you look at all the National Parks across the US, there are about 60:

The National Park Service manages many more “park units” other than just the officially-designated “National Parks.” These include things like National Lakeshores, National Monuments, National Parkways, National Preserves, etc. In total there are about 400 units across the US:

The National Park Service has an open data portal where you can get an API of all the locations of these parks, so I took that data feed and put it into ArcGIS Web AppBuilder to create an application that allows you to filter the map by park types.

Check it out here