Developing Plugins for JOSM

This page gives a short introduction for developers how to create, deploy and develop plugins for JOSM. Any Questions left? Ask at the developers mailinglist.

Table of Contents

1. Setting up the environment
2. Building
3. Testing
4. JOSM plugins
   1. A POJO as entry point
   2. Naming the plugin
   3. The plugin interface
   4. The JOSM API
   5. Accessing the local file system
5. Packaging a plugin
   1. A plugin is deployed as a single jar
   2. The manifest file for a JOSM plugin
6. Translating a plugin
7. Publishing a plugin
   1. Managing a plugin in OSM.org SVN
      1. Updating a plugin in SVN
8. Legal stuff (Imis opinion)

The popularity of programming languages

The TIOBE Programming Community index is an indicator of the popularity of programming languages. The ratings are based on the number of skilled engineers world-wide, courses and third party vendors. The popular search engines Google, Bing, Yahoo!, Wikipedia, Amazon, YouTube and Baidu are used to calculate the ratings. The index can be used to check whether your programming skills are still up to date or to make a strategic decision about what programming language should be adopted when starting to build a new software system. 

Position Mar 2013	Position Mar 2012	Delta in Position	Programming Language	Ratings Mar 2013	Delta Mar 2012	Status
1	1		Java	18.156%	+1.05%	A
2	2		C	17.141%	+0.05%	A
3	5		Objective-C	10.230%	+2.49%	A
4	4		C++	9.115%	+1.07%	A
5	3		C#	6.597%	-1.65%	A
6	6		PHP	4.809%	-0.75%	A
7	7		(Visual) Basic	4.607%	+0.24%	A
8	9		Python	4.388%	+1.10%	A
9	13		Ruby	2.150%	+0.74%	A
10	10		Perl	1.959%	-0.74%	A
11	8		JavaScript	1.370%	-2.02%	A
12	48		Bash	1.009%	+0.78%	A-
13	15		Lisp	0.942%	+0.02%	A
14	12		PL/SQL	0.921%	-0.50%	A--
15	11		Delphi/Object Pascal	0.889%	-0.84%	A
16	16		Visual Basic .NET	0.888%	+0.10%	A
17	14		Transact-SQL	0.836%	-0.09%	A-
18	17		Pascal	0.697%	-0.07%	A--
19	21		Lua	0.697%	+0.17%	B
20	26		Assembly	0.633%	+0.21%	B

Controlling of the car by Kinect.

OpenCV 2.4.3 released!

OpenCV 2.4.3 is finally out. It should be the most mature OpenCV to the moment.

The nicely formatted changelog can be seen here; here are the highlights:

• Greatly extended GPU (i.e. CUDA-based) module.
• The brand new ocl (OpenCL-based) module that unleashes GPU power also for AMD and Intel GPU users. It’s not included into the binary package, since there are different SDKs, and it’s not turned on by default. You need to run CMake and turn on “WITH_OPENCL”. Also, please note that this is very first version of the module, so it may be not very stable and not very functional.
• Much better performance on many-core systems out of the box. You do not need TBB anymore on MacOSX, iOS and Windows. BTW, the binary package for Windows is now built without TBB support. Libraries and DLLs for Visual Studio 2010 use the Concurrency framework.
• About 130 bugs have been fixed since 2.4.2.

SPECIAL NOTE for Ubuntu x86 12.04 users: By default OpenCV is now built with “-O2″ optimization flag instead of “-O3″ on 32-bit Linux. The compiler in the 32-bit version of Ubuntu 12.04 produces incorrect code with “-O3″, so it’s strongly recommended not to use this flag.

For more information click here.