Οι συντεταγμένες που γνωρίζουμε από τους χάρτες και τα συστήματα GPS ακολουθούν το πρότυπο WGS 84. Στην Ελλάδα σε κάποιες υπηρεσίες γίνεται χρήση του ΕΓΣΑ87 (GGRS87). Πως κάνουμε τη μετατροπή μεταξύ WGS 84 και ΕΓΣΑ87 (GGRS87, GR87); Επιβεβαιώνουμε ότι έχουμε εγκαταστήσει το πακέτο proj (sudo apt-get install proj). Για το proj, ο κωδικός για WGS84 …
Tag: proj
Permanent link to this article: https://blog.simos.info/%ce%bc%ce%b5%cf%84%ce%b1%cf%84%cf%81%ce%bf%cf%80%ce%ae-%cf%83%cf%85%ce%bd%cf%84%ce%b5%cf%84%ce%b1%ce%b3%ce%bc%ce%ad%ce%bd%cf%89%ce%bd-%ce%bc%ce%b5%cf%84%ce%b1%ce%be%cf%8d-wgs-84-%cf%80-%cf%87-gps/
Jan 07 2009
Playing with Git
Git is a version control system (VCS) software that is used for source code management (SCM). There are several examples of VCS software, such as CVS and SVN. What makes Git different is that it is a distributed VCS, that is, a DVCS. Being a DVCS, when you use Git you create fully capable local …
Permanent link to this article: https://blog.simos.info/playing-with-git/
Jun 26 2008
What to see in OpenOffice.org 3.1 Writer;
At the User Experience mailing list at OpenOffice.org there is a thread to discuss & plan what new things should make it to OpenOffice.org 3.1. Here is the first email, From: Christian Jansen Date: Wed, Jun 25, 2008 at 8:35 AM Hi, OpenOffice.org 3.1 planning will start soon, thus I’d like to collect some ideas …
Permanent link to this article: https://blog.simos.info/what-to-see-in-openofficeorg-31-writer/
Jun 11 2008
ANTLR grammar for XKB, and Relax NG schema (draft)
I completed the ANTLRv3 grammar for symbols/ configuration files of XKB. The grammar can parse and create the abstract syntax tree (AST) for all keyboard layouts in xkeyboard-config. ANTLRv3 helps you create parsers for domain specific languages (DSL), an example of which is the configuration files in XKB. Having the ANTLRv3 grammar for a configuration …
Permanent link to this article: https://blog.simos.info/antlr-grammar-for-xkb-and-relax-ng-schema-draft/
May 28 2008
Looking into the symbol files
In the previous post, we talked about the ANTLR grammar that parses the XKB layout files. The grammar is available at http://code.google.com/p/keyboardlayouteditor/source/browse. I’ll rather push to the freedesktop repository once the project is completed. Now it’s too easy for me, just doing svn commit -m something. Below you can see the relevant layout files for …
Permanent link to this article: https://blog.simos.info/looking-into-the-symbol-files/
Apr 30 2008
Keyboard Layout Editor GSOC project
I got accepted for a GSOC project with the X.Org Foundation. My mentor is Sergey Udaltsov and I look forward working with him. The project is about creating a Keyboard Layout Editor, that can be used to edit XKB files with a nice GUI. I will be blogging about these from here (fdo category at …
Permanent link to this article: https://blog.simos.info/keyboard-layout-editor-gsoc-project/
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