Library for plotting 2D data such as maps in Java

• JDK 8 or newer to build and Java 8 or newer to run.

All classes in the library are in the tdf package. The core of the library is handled in two classes: Config and Renderer. Both of these classes are meant to be subclassed to add extra functionality, although doing so may not be necessary, especially for the Renderer.

The Renderer class is a viewport for rendering data. It can be embedded within an existing swing UI, however a convenience method, Renderer.simpleSetup(String, Config), is also provided to create a window consisting of only the Renderer.

The Config class contains customizable settings. The Config is linked to a Renderer using the Config.init(Renderer) method. Configs are mapped to Renderers in a 1 to 1 manner, meaning that each Config can only be tied to one Renderer. The Config file needs to be linked to a Renderer so the Renderer knows what settings to use and so the Config can properly set and update key bindings in the Renderer.

Generally, settings are loaded from file using Config.load() method. Doing so will load settings from the file specified in Config's constructor, or config.ini within the current working directory if the default constructor is used. The load method is automatically called when the Config is linked to a Renderer with init. Configuration settings can also be set manually. After manually modifying settings, Config.setModified() should be called so the Renderer know's to update its own internal copy before the next time the viewport is redrawn.

Rendered items are implemented by extending the Renderable class and adding them using Renderer.add(Renderable) or Renderer.add(Renderable, int). The first method is a convenience method for the second, with the layer parameter defaulting to 0. Layers are rendered low to high, meaning layer 1 will appear on top of layer 0. The grid is rendered immediately before layer 0, if enabled. While implementing the Renderable.render(Graphics2D, Config) is the only thing that's required for an item to be rendered, there's a few other things that can be modified to improve rendering.

• Rectangle bounds - can be set so the Renderer knows not to draw it if it lies completely outside the viewport.
• boolean visible - can be modified to toggle rendering of the item completely.
• boolean canBeAntialiased() - can be overridden to make sure no antialiasing is applied to this object. This is useful for cases such as filled triangles that might have gaps between them if antialiased.

• Viewport panning and zooming
• Togglable grid
• Layers for sorting of items
• Customizable background color
• Customizable grid size and colors
• Antialiasing that can be toggled in the config and selectively disabled for individual rendered items
• Customizable key bindings with convenience methods for adding more
• Coordinate readout
• Reversible Y axis
• Occlusion culling support
• Convience method to focus viewport on a specific area

• C: Reload the config file.
• E: Clear/empty/erase the viewport of any data.
• G: Toggle grid.
• Mouse Drag: Move the viewport.
• Mousewheel: Zoom in/out.