Identifying Application Data   

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93.1 Introduction

As described in Section 2.4.2, “Tags”, Parasolid tags are used to identify Parasolid entities within a session. It can sometimes be useful to be able to refer to data contained within your application, rather than within Parasolid. You can create associations between Parasolid entities and application data in this way using appitems.

An appitem is a Parasolid item that contains one or more pointers that reference data in your application, rather than entities in the Parasolid session. Because an appitem is a Parasolid item, it has an associated tag that is unique within a Parasolid session. When an appitem is created, it is stored in the current partition.

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93.2 Available functionality

The following functionality summarizes the functionality provided for appitems:

 

Function

Description

PK_APPITEM_create

Create appitems that refer to the application data indicated by the given pointers.

PK_APPITEM_delete

Delete the given appitems.

PK_APPITEM_ask

Return the pointers for the given appitems.

PK_APPITEM_reset_pointers

Overwrite the pointers in the supplied appitems with replacement pointers.

PK_APPITEM_is

Test whether the given argument is an appitem.

PK_PARTITION_ask_appitems

Return the set of appitems in the given partition.

See the PK Interface Programming Reference Manual for more information on these functions.

 

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