Charla sobre perspectivas profesionales para TIG 2014
Acceder a las diapositivas en bl.ocks.
Jorge Sanz
@xurxosanz
http://jorgesanz.net
Jorge Sanz jsanz
🗺️
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # Command to use the NTV2 grid file correctly to convert | |
| # from 23030 (ED50) to 25830 (ETRS89), both in UTM30N | |
| # hint: define all the f$cking SRS params | |
| ogr2ogr \ | |
| -t_srs "+proj=utm +zone=30 +ellps=GRS80 +units=m +nadgrids=/path/to/sped2et.gsb" \ | |
| -s_srs "epsg:23030" \ | |
| -a_srs "epsg:25830" \ | |
| -f "ESRI Shapefile" output_shp_25830.shp input.shp |
Minimal HTML, CSS and JavaScript example for the Open Source Opportunities in GIS Summer School.
Also available as a jsFiddle.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>My Map</title> | |
| <link rel="stylesheet" href="openlayers/theme/default/style.css" type="text/css"> | |
| <style> | |
| #map-id { | |
| width: 512px; | |
| height: 256px; | |
| } |
jsanz
/ charter-members-scrapping.py
Created
August 1, 2014 18:49
Scrap Charter Members lines for electronic voting
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # Simple script to take from the OSGeo wiki the data to | |
| # print on the console the lines to be used on the | |
| # electronic voting system to produce meaninful | |
| # questions with links and info. | |
| from BeautifulSoup import BeautifulSoup | |
| import urllib | |
| nominations_url = 'http://wiki.osgeo.org/wiki/New_Member_Nominations_2014' | |
| response = urllib.urlopen(nominations_url) |
jsanz
/ index.html
Last active
August 29, 2015 14:04
Minimal CartoDB visualization with the CartoDB.js library
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Trying to hide the layers| CartoDB.js</title> | |
| <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> | |
| <meta http-equiv="content-type" content="text/html; charset=UTF-8"/> | |
| <link rel="shortcut icon" href="http://cartodb.com/assets/favicon.ico" /> | |
| <style> | |
| html, body, #map { | |
| height: 100%; |
This is an example of extending the OL3 [TextFeature] format class
to parse the data coming from a Google [Form] backed by a
public Google [Spreadsheet].
Add an event (name, web and coordinates) and check the [demo].
The magic comes from calling the [JSON] version of the spreadsheet.
The weirdest part is the owz14uv string that I had to guess
thanks to this [blog post].
Click on the space between any of the pairs of polygons to update the map.
This is a demo for an SQL function defined in CartoDB. The function takes two adjacent polygons and two points near their borders and return a polygon that fills the space between those polygons up to those points.
To execute the geoprocess draw to adjacent polygons and two points on their borders. Draw a new point or a new polygon to execute again the process.
The SQL called then is:
SELECT ST_AsGeoJSON(
fillempty(
polygon1, polygon2,