User Guide

Defining and Editing Pin Types
195
Changing Symbol Origin and Bounding Box
The origin is designated for placing a part, and is the point
the part is rotated around. By default, the origin is at (0,0).
It is maintained as a point of reference on the schematic.
The bounding box defines the selection area of the symbol
when placed on a schematic. After drawing a symbol, all
of the elements of the symbol must be enclosed in the
bounding box.
Origin
By default, part symbols in the symbol libraries have the
origin on the point of connection, on the upper-left pin.
You can move the origin to any point on the symbol.
Note When creating a symbol from scratch, the origin is placed in the
upper-left corner of the bounding box. You can move it to a
location of your choice after creating the symbol.
If you change the origin of a symbol in the symbol editor
(thus changing the location of the symbol graphics
relative to that point), the symbol graphics relocate
accordingly in the schematic editor whenever you edit
previously created schematics.
Editing a part origin
1 From the Graphics menu, select Origin to change the
pointer to a pencil shape.
2 Move the pointer to the point on the object where you
want to place the origin and double-click to fix the
origin at that point.
Graphics Menu