Fritzing Parts SVG Editor  0.0.2
Preferences

The preferences are stored in a text file in the user's home directory (folder). The file is named .fritzingpartssvgeditor under Linux and MacOSX and fritzingpartssvgeditor.rc under MS-Windows. There are five preferences:

Units
The units to use for the width and height. Can me either mm (milimeters) or inch (inches)
Width
The real world width (in Units above) of the viewport.
Height
The real world height (in Units above) of the viewport.
Viewport Width
The numerical width of the viewport
Viewport Height
The numerical height of the viewport

These are the default initial values to use. When loading a file, the values stored in the file are used. The aspect ratio of the Width to Height should be the same as the aspect ratio of the Viewport Width to Viewport Height to insure square pixels. Typically the Viewport Width and Viewport Height will be a constant multiple of the Width and Height respectively. The Viewport determines the coordinate system used to place and size graphical elements. The Viewport origin (upper left corner) is always 0,0.