Joël Gonçalves de Freitas

Software Developer

Eat(); Sleep(); Code(); Repeat();

Source Wikipedia
Cancer Death Rate map

Cancer Death Rate map

The data describe cancer rates for all cancer sites by mortality, for all races, sexes, and ages, averaged over the years of 2009 - 2013. Rates are the number of deaths per 100,000 people.

Tools used
  • JSON file
  • CARTO
Data source: National Cancer Institute's State Cancer Profiles
deaths by vehicle accidents map

Death by vehicle accident

Fatality facts 2017 State by state. Analysis of fatality vehicle death rates per state and per vehicle miles traveled in USA. relative to the population.

Tools used
  • JSON file
  • CARTO
Data source: Insurance Institute for Highway Safety
Story map of my courses

Course story map

ArcGIS story maps inspire me to create story map with leafletjs. The idea is to add different map modules in one page as a story map that users can see each map story.

Tools used
  • JSON file
  • Leafletjs
Data source: Are maps of the New Map Plus course map672
My route to work

My route

Every day I go to work I ask my self, why not to track my route from home to work? just for the fun and check how is the data formatted and visualize the data on webmap. Well, lets start the gps fun.

Tools used
  • Converted GPS data into JSON file
  • Leafletjs
Data source: GPS data from mobile phone

Florida waterways

This map layer contains waterbodies, water steams and urban areas of Florida. The propose of this map is for geographic display and analysis at large regional areas. The data should be displayed and analyzed at scales appropriate for 1:1,000,000-scale data.

Tools used
  • QGIS
  • PostgreSQL
Data source: The National map small scale website
USA power plant

U.S. power plants

The USA power plants map shows the pattern of the energy production. Energy in the United States comes mostly from fossil fuels according to the data from 2010. The data showed that 25% of the nation's energy originates from petroleum, 22% from coal, and 22% from natural gas. Nuclear energy supplied 8.4% and renewable energy supplied 8%.

Tools used
  • JSON file
  • Leafletjs
Data source: EIA's form 923 website
USA power plant

mapping the Curacao elections

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Tools used
  • Qgis 3.12
  • LibreOffice
  • csv file
  • mapbox omnivore
  • mapbox Assembly.css
  • Leafletjs
Data source: Konseho Supremo Elektoral website

About me

My profile picture

Hi, My name is Joël Gonçalves de Freitas and I live in Curaçao. I am Software Developer at the Public Land Records and Registry Curaçao (Kadaster & Openbare Registers). Sometimes I do data analysis and Data visualization in QGIS but I do more programming.

Things I like most are dancing, swimming, movies, spending time with family and friends and woodworking.

Skillz

GIS
QGIS for data analysis, manipulation, and, format conversion
PostGIS/SQL for data querying
Web Mapping
Leaflet, Mapbox, OpenLayer, Carto, basic thematic mapping, and telling stories with maps
Coding
JavaScript
Jquery
PhP
Bootstrap4
SQL

Get in touch!