converts PostScript or PDF files to other vector graphics formats
pstoedit is a tool converting PostScript and PDF files into various other formats suported by different drawing editors. As a prerequesite it needs GhostScript to be installed (binary installation is sufficient).
Tool support for creating FMC* diagrams [Block diagrams, Petri nets, Entity-Relationship diagrams (ERD)] in MS-Visio 2000 and newer. Features: stencils, consistency checking, Petri net simulation, exporter e.g. pdf, ... *Fundamental Modeling Concepts
A stripped down version of the stencil set is available for TAM (Technical Architecture Modeling of SAP).
A graphical tool for designing finite state machines and exporting them to Hardware Description Languages, such as VHDL, AHDL, Verilog, or Ragel/SMC files for C, C++, Objective-C, Java, Python, PHP, Perl, Lua code generation.
GeekCAD is a free open source CAD system. It's based on Qt4.
Features of this project:
1. dxf import, export;
2. raster bitmaps export;
3. native postscript or pdf export (in future);
4. Python scripting;
5. Parametric drawings.
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