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How to extend openMap4u

There are two point where to extend the openMap4u API.

Outputable

You can develop your own custom output format, by implementing the Outputable interface.

Buildable

You can develop your own drawing plugin, by implementing the Buildable interface or extending one of the following abstract template classes

• ShapeBuilder (= vector graphic)
• TextBuilder (= text) and
• ImageBuilder (= raster image)

As an example we show you here some built in plugins.

org.openmap4u.plugin.builder.core package

• Line.java
• Polyline.java
• Polygon.java
• Text.java
• Image.java

org.openmap4u.plugin.builder.symbol package

• Rectangle.java
• Circle.java
• Cross.java

org.openmap4u.plugin.builder.chart package

• AreaChart.java
• BarChart.java
• LineChart.java
• PieChart.java