
This task explains how to create
a simple filter in a catalog. If a chapter contains a large number of
entities, one of the most effective ways of finding the entities you need
is to narrow the selection criteria by means of the keywords you initially
used to create the catalog.


Note that the search is case
sensitive and therefore the string to be searched must be entered
accordingly in the search field.


Have the
ALL_FASTENERS.catalog open. 


In the Catalog tree, doubleclick on a family name or
icon, e.g. SCREWS.
The entities contained in the selected family appear in the form of a
table on the righthand side of the navigator.
For any description contained in the selected
family the filter functionality evaluates the logical expression you
enter and then displays the entities complying with the criteria you
used.

Let's take a simple expression first. Enter the
following expressions:
 x.DIAMETER==4mm (for
numerical values)

x.TYPE=="FHC" (for the comparison of
character strings)

x.DIAMETER >=x.LENGTH (for the
comparison of values between different keywords)


In expressions,
"x." must precede each chapter keyword name. 
The results will be as follows, correspondingly:
Now let's take an example showing simple expressions connected
by logical operators.

Enter (x.DIAMETER<=4)AND(x.TYPE=="FHC")
for the comparison of numerical values and character strings).
The result is as follows:
Here are some examples showing more complex
expressions:

Enter an expression comprising arithmetic operators, e.g.
(x.DIAMETER + x.LENGTH)>=10mm.
The result will be as follows:

Enter an expression comprising arithmetic operators such
as: min
(x.DIAMETER, x.LENGTH)>=6mm.
Note: This particular formula is not
applicable to our example.

Enter an expression comprising arithmetic operators such
as: x.DESIGNATION.Search ("FHC")>=0mm.
The result will be as follows:



To display the filter history, click the Filter
selection button.

When you have identified the entity you require you can:
 either edit it by selecting the line where it appears and
clicking the Open button
 or copy it into an appropriate document (see Inserting
CATPart or CATProduct Documents from a Catalog in the
Version 5  Assembly Design User's Guide).



Keywords that include
characters other than upper or lowercase alphabet characters and numbers
from 0 through 9 must begin and end with double quotes. 

For more
information about expressions, see the following chapters in the
Version 5  Knowledge Advisor Programming Guide:
 Constants, Units and Operators
 Mathematical Functions
 String Functions




