https://github.com/michaelzangl/josm-plugin-opengl

https://github.com/michaelzangl/josm-plugin-opengl

Last synced: 2 months ago
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• Host: GitHub
• URL: https://github.com/michaelzangl/josm-plugin-opengl
• Owner: michaelzangl
• Created: 2015-05-23T19:51:19.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2017-12-27T01:17:22.000Z (almost 7 years ago)
• Last Synced: 2023-09-01T06:11:16.005Z (over 1 year ago)
• Language: Java
• Size: 5.65 MB
• Stars: 7
• Watchers: 5
• Forks: 2
• Open Issues: 11
• Metadata Files:
  • Readme: README.md

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README

        
# josm-plugin-opengl

This is a josm plugin that replaces the default, Java2D map view with a version rendered using OpenGL.

## Installing

See [Releases](https://github.com/michaelzangl/josm-plugin-opengl/releases)

## Compiling

For this plugin, you need a special version of JOSM and of GLG2D. For the ease of compiling, GLG2D is just added to the plugin by a symbilic link, so you need Linux to compile this.

Check out those repositories in the same directory:

* https://github.com/michaelzangl/josm-plugin-opengl

* https://github.com/openstreetmap/josm (JOSM with changes for this plugin).

* https://github.com/michaelzangl/glg2d (Bug fixes for GLG2D)

Then run:

* ant josm/build.xml

* ant josm-plugin-opengl/build.xml

## Developing

I use eclipse for developing. Simply add josm and josm-plugin-opengl as eclipse projects.

All classes have Javadocs. Those are the most important entry points to get started:

* OpenGLViewPlugin is the main entry point for the plugin.

* MapPanel is the OpenGL-replacement of the MapView

* LayerDrawManager does the layer drawing and replaces MapView#paint()

* StyleGenerationManager generates the styles and geometries for the current frame and - in a background thread - for future frames.

* StyleGeometryCache stores the geometries generated and handles invalidation.

* MergeGroup contains an explonation of the way geometries are stored.

* RecordingGraphics2D is our Graphics2D instance that records all draw calls and stores them for later use.

* the SimpeBuferPool pools our vertex buffers to avoid many allocate()-calls.