#mastergis

🚀 Master QGIS & ArcGIS Sekarang! Diskon 75% + Jadi Reseller Dapat Komisi 50%!

Ingin kuasai QGIS & ArcGIS dengan cepat? Kursus ini cocok untuk pemula hingga mahir! 💡 Dapatkan diskon 50-75% dan peluang jadi reseller dengan komisi menggiurkan!

Ingin kuasai QGIS & ArcGIS dengan cepat? Kursus ini cocok untuk pemula hingga mahir! 💡 Dapatkan diskon 50-75% dan peluang jadi reseller dengan komisi menggiurkan!

Ingin kuasai QGIS & ArcGIS dengan cepat? Kursus ini cocok untuk pemula hingga mahir! 💡 Dapatkan diskon 50-75% dan peluang jadi reseller dengan komisi menggiurkan!

I spent last weekend trying to make an app using ArcGIS Online and I would like to tell you my story. Starting from scratch, I wanted to create a map to show the rate of crime in the U.S related to the unemployment rate in 2012, based on FBI data. So, I downloaded all related data from official sites. 

My first obstacle was managing tables. I used  the"join" tool to integrate data, but this process turned out to be a little cumbersome. First, I installed LibreOffice, since it's easy to use and open source. In order to make a successful join, I saved my tables in .xls format and, more importantly, I made sure that I had a common attribute field between the tables and the layers I wanted to integrate. It's better to use a simple field such as the state code or a column with numbers from 1 to X, and always make sure that the type of field is the same in both table and layer.

These are the steps I followed after finding data and joining the tables:

- I created a layer (shapefile) per each type of crime selected, clicking on the layers: data > export data> this layer's source data and finally adding the exported layer to my map. 

- I added symbols to every layer using: layer properties > symbology. 

- I labelled the layers using: layer properties > labels > placement properties and a specific scale rage.

- I added a base map using ArcGis Online, just by clicking on the upper bar Add data > add basemap and choosing my favorite one. These maps below were my result:

Violent crime per 100,000 pop in the U.S:

Murder per 100,000 pop in the U.S:

Robbery per 100,000 pop in the U.S:

But the important issue was to create an app in ArGIS Online, so I took the steps below:

- created a business account in ArcGIS Online (30 day free trial)

- signed in ArcGIS Desktop with this account to publish the layers as "service"

-  in ArcGIS Desktop, selected File > share as a "Service"> publish a service > my hosted services > capabilities > feature access > descriptions (completed information) > sharing (everyone) > analyze and publish

In ArcGIS Online: 

- decided what to show, so selected my map > add > search for layers > add

- clicked on save > title (completed information) > tags (completed information) > save map

- clicked on share > chose the application and configured it

After this careful process, I found out I couldn't publish my map (maybe because the layers weighed too much or the polygons chosen had too many vertices). So after a little frustration, I decided to create an easier map to show Hispanics and Asians in the U.S. 

I'm happy with the result, but I've learnt from this first try that It's better to never give up and try to choose an easier path in your learning process. I'm pretty sure that in the short term I will find a way to publish the first map I intended to make.

Last week I started the Master GIS at Esri Spain. This is a great challenge, I feel this will change the way I work and how I see the world.

This edition is the fifth one, with 24 people coming from many fields and professional backgrounds.

ESRI has provided us with some fantastic equipment, but inspiration and ideas are on us :) I'm quite eager to rack my brain building some geospatial apps with ArcGIS.

We got off to a good start attending ESRI Conference Spain 2013, which was held in Madrid on October 2 - 3. This year more than 2000 visitors got together in a dedicated space to exchange valuable ideas.

The Managing Director of ESRI Spain, D. Alfonso Rubio  introduced us how GIS is transforming business in his keynote session. Then, a wide range of case studies were presented during the sessions.

Some interesting projects such as Sitga, Sitegal and Proxecto Ríos, presented by Xunta de Galicia, enable citizens to access updated and transversal information at any time, in an easy and intuitive way. 

There were some other sessions on Location Analytics from RiderState, CognoGeo and others. RiderState presented a social game for bicycle users, and CognoGeo showed how make better decisions using a combination of Business Intelligence and GIS.

The variety of technical and sectorial talks that took place in the event was amazing. I chose the technical ones, since I was specially curious about the new functionalities and features of the last version of ArcGIS. The topics included:

how to create operational dashboards, 

how to build geoprocessing models with ModelBuilder and Python, 

how to use ArcGIS Online templates, 

applications of Location Analytics and Geodatabase, 

development of web applications with iOS and Android.

If you missed it you can download the presentations and watch the videos online. Check below some photos of the event!

Opening speech

Technical talks

Interaction time