Showextensions property – Epson 5 User Manual

Page 169

ShowExtensions Property

Applies To

Vision Objects: Line

Description

By default, Line objects display a line from a starting reference (defined by the StartPointObject property)
to an ending reference (defined by the EndPointObject property). The ShowExtensions property causes the
graphics display of the line to be extended out (by using a dotted line to indicate the extensions) so you can
see the complete projection of the line.

Usage

VGet Sequence.Object.ShowExtensions, var

VSet Sequence.Object.ShowExtensions, value

Sequence Name of a sequence or string variable containing a sequence name.

Object

Name of an object or string variable containing an object name. The object must exist in the
specified sequence.

var

Boolean variable that will contain the value of the property.

value

Integer expression for the new value of the property.

Values

False

Do not show line extensions

True

Show line extensions

Default: False

Remarks

When a Line object is created, the default graphic display of the Line object is simply a line with a starting
and ending point. The StartPointObject and EndPointObject Properties can be used to modify the direction
and length of the line but in some cases you may want to see where the line extends to. This is the purpose
of the ShowExtensions property.

Extensions are useful when you need to see more than just a line between 2 points. For example, assume
you create a Line object perpendicular to another line and the point at which the 2 lines meet is not actually
on the physical line but at some location extended from the line. You can see this point of intersection by
running your application with the ShowExtensions property set to True.