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Gerber Viewer Description
Gerber Viewer is a free Gerber viewer. Gerber Viewer in short gerbv is a viewer for Gerber files. Gerber files are generated from PCB CAD system and sent to PCB manufacturers as basis for the manufacturing process. The standard supported by gerbv is RS-274X.The basic difference between RS-274D (the old standard) and RS-274X is basically the addition of apertures in RS-274X. It might be possible to make an RS-274X file out of an RS-274D file and an aperture list.gerbv also supports drill files. The format supported are known under names as NC-drill or Excellon. The format is a bit undefined and different EDA-vendors implement it different. But basically you need to have the tools definition in the file, then the parser is quite tolerant. The different holes are shown as dots in the (scaled) correct size.The different layers of the PCB are separated into different files. gerbv can load all files at the same time and display them "on top of each other". You can independently turn them on and off.Requirements:· GTK+, the graphical toolkit (required).· GDK-Pixbuf, export of images (optional).· libpng, needed by GDK-Pixbuf to generate PNGs (optional).· getopt_long from the GNU project. gerbv can do without getopt_long long options to the program will hence not be available (optional).InstallationTo install the program do1. gzip -dc gerbv-1.0.1.tar.gz | tar xf -2. cd gerbv-1.0.13. ./configure4. make installInteresting configure options are:--help : Lists all options--disable-exportpng : Disable compilation of export of PNGs--enable-gtk2 : Compile with GTK+ 2 instead of GTK+ 1--prefix= : Install from dir --with-maxfiles : Set maximal number of files (default 20).--enable-unit-mm : Change default unit in status bar to mm from inch.What's New in This Release:· This release include patches collected over one and a half years. The step-and-repeat command now works.· An endless loop bug when gerbv encountered an unknown % code was fixed.· Better support was provided for small drill files and window size handling was improved when the screen is bigger than the display.· Maintainership has broadened to include several more members of the gEDA project.
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