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Fetching static JSON files cross site with jQuery.
Say you have a static JSON file sitting on a web server, e.g. mystaticfiles.com/hello.json on Amazon S3 or a CDN. For the sake of argument, let’s imagine that it’s a configuration file. The contents of the file looks like this: {“message”: “Hello, world!”}
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Reprojecting shapefiles with ogr2ogr
If you have an ESRI Shapefile (.shp) that you want to reproject, you can use ogr2ogr ogr2ogr -t_srs newfile.shp oldfile.shp The EPSG code could be for instance epsg:28532.
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Creating a word cloud from PDF documents
Warning: This is not the hardest way to create a word cloud from pdf-documents, but it’s up there. Say you have directory containing pdf documents: $ ls a.pdf b.pdf c.pdf …
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Easy two column layout in latex
Include the packages. The blindtext package is just an easy way to type Lorem ipsum etc. \usepackage{multicol} \usepackage{blindtext} Make a two column section of a page. \begin{multicols}{2}[\textbf{Example for a two column text}] \blindtext \end{multicols}
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Run OpenSolaris in your OS with VirtualBox
The following recipe should work for any OS. Download and install VirtualBox Download OpenSolaris image Start VM If you want to try an other image than OpenSolaris, you can find many others images (CentOS, FreeBSD, etc) here: http://virtualboxes.org/images/
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If only more people wrote like Lamport
I’m half way through the Part-time parliament on Paxos article by Leslie Lamport. It is an article that describes a three-phase consensus protocol by telling a story of a (fictional) parliement on the greek island of Paxos, complete with fat priests, busy businessmen, and a vivid description of the parliament hall. The story illustrates how […]
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Show system info on a Mac
SYSTEM_PROFILER Show a very long list of details about your machine and kernel (verbose output) system_profiler
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How to monitor system stuff on Mac
Found this nice post on good commands to know appart from the obvious top Basically they are top and vm_stat 5
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Finding the most quoted main author using linux command line
I have a text file containing article references. It looks like this – Miller HJ (2004) Tobler’s First Law and spatial analysis. Ann Assoc Am Geogr 94:284–289. – Onsrud H, ed (2007) Research and Theory in Advanced Spatial Data Infrastructure Concepts (ESRI Press, Redlands, CA). – Egenhofer M (2002) Toward the geospatial semantic web. Advances […]
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Sticking bicycle paths in CouchDB
In this installment of How To Stick Anything In CouchDB, I’ll take some bicycle path data released by the municipality of Copenhagen and stick them in CouchDB. As always I’m working in Terminal under Mac OS X. Bicycle paths in Copenhagen, served live by CouchDB: Your browser does not support IFRAME The data is in […]