User Guide

(with the exception of polygons with rank = 0, drawn as a part of a
package in the Package Editor). Rank = 6 signifies the lowest priority.
PolygonswiththesamerankarecomparedbytheDRC.
Please read the notes regarding polygons in the section on Defining a
CopperPlane onpage 105.
Please note that this does not apply to supply layers defined by $name...
Supply layers made with polygons are not plotted inversely. This can
lead to high plotting times with Gerber photoplotters, since large areas
havetobefilled.
Donot,therefore,choosealinethicknessforapolygonthatistoonarrow!
Thisisofnosignificanceinthecaseofoutputon Postscript.
6.5 UpdatingComponents(LibraryUpdate)
The UPDATE command allows components in a schematic diagram or
a layout to be replaced by components defined in accordance with the
current libraries. This function is of particular interest for existing
projects. If, in the course of development, the definitions of packages,
symbols or devices in the libraries are changed, the existing project can
beadaptedtothem.
The menu item Library/Update causes all the components in a project
to be compared with the definitions in the current libraries. If EAGLE
findsdifferences,thecomponentsareexchanged.
Those libraries on the path specified for Libraries in the Control Panel
under Options/Directories willbeexamined.
It is also possible to update components from one particular library.
Type the UPDATE command on the command line, stating the library,
forinstanceas:
UPDATElinear
or
UPDATE/home/mydir/eagle/library/linear.lbr
or select the library in the File dialog of the Library/Update... menu
item.
In many cases you will be asked whether gates, pins or pads should be
replaced according to name or according to position. This always hap
-
pens if library objects are renamed, or if their position (sequence) is
changed.
If too many changes are made in the library at one time (e.g. pin names
and pin positions are changed) it is not possible to carry out an automa
-
tic adaptation. In such a case it is possible either to carry out the
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EAGLEManual