# GEF Geometry API Reference

Packages
Package
Description
org.eclipse.gef.geometry.convert.fx
This package contains helper classes to transfer data from JavaFX/Geometry to one another.
org.eclipse.gef.geometry.convert.swt
This package provides support for converting geometric objects to SWT and for conversion between SWT and AWT.
org.eclipse.gef.geometry.euclidean
This package provides core abstractions to support calculations within 2-dimensional Euclidean space.
org.eclipse.gef.geometry.internal.utils
This package provides utility classes being used internally for geometric calculations.
org.eclipse.gef.geometry.planar
This package provides support for geometric calculations based on shapes.
org.eclipse.gef.geometry.projective
This package provides core abstractions to support calculations within 2-dimensional projective vector space.