Node JS + Express + PostGIS + Leaflet

After following an interesting workshop about mapping with Node JS, PostGIS and Leaflet I have got pretty excited, and so I have decided to spend some time with it. I have basically followed this tutorial (http://boomphisto.blogspot.com/2011/07/nodejs-express-leaflet-postgis-awesome.html) and after some issues I created my first map (bikes accident in Boston). Very important put your code before use the routes as suggested here (http://cwbuecheler.com/web/tutorials/2013/node-express-mongo/)

 

Extract an ArcGIS Server Services to a shapefile/feature class

1. On the server side you have to use the query capability and retrieve all features in a JSON format. Try it using this link: http://www.geoportal.cl/ArcGIS/rest/services/MinisteriodeViviendayUrbanismo/chile_minvu_ddu_pri_Costero_Ohiggns/MapServer/0/query?text=&geometry=&geometryType=esriGeometryPolygon&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&objectIds=&where=OBJECTID++%3E+0&time=&returnCountOnly=false&returnIdsOnly=false&returnGeometry=true&maxAllowableOffset=&outSR=&outFields=&f=html As you can see from the form page to get all the features, I set the WHERE field to be OBJECTID > 0, and the Geometry Type to be a Polygon, the Return Field to * (so that I can get all attributes), and the format to be JSON file; then you can click the query button.
2. Save out the JSON file you get on your browser, just right click on the browser and choose Save Page As
3. Use the tool in ArcMap JSON to Features (http://resources.arcgis.com/en/help/main/10.2/index.html#//001200000057000000) 
4. Convert the feature class into a shapefile

Python and edX

Last semester I have took "Introduction to Computer Science and Programming" at edX (https://www.edx.org/course/mitx/mitx-6-00-1x-introduction-computer-1498). A lot work but I have learned a lot about python.

Google Form to ArcGIS online + search

Google Form to ArcGIS Online

FC to CSV keeping the Alias Name

This is my Python way to export a Feature Class attributes table into a CSV file, and keep the ALIAS NAME.

EDMap

Just finished to develop EDMap! Nice job done using Google Map API v3, Fusion Table, and jquery. By the way, I have also push it on GitHub