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Extensible vector graphics editor with Latex text support.
Ipe is an extensible drawing editor for creating figures in PDF and Postscript format. It supports making small figures for inclusion into LaTeX-documents as well as presentations in PDF.
Lembraco is a graphical editor that lets you load or create a 3D object and change its properties. Lembraco can load a midi file or listen to an external midi source. The incoming midi values are filtered and passed to the engine for event handling.