Startpointobject property – Epson 5 User Manual

Page 177

StartPointObject Property

Applies To

Vision Objects: Edge, Line

Description

Specifies the vision object to connect the starting point of the Line to. (i.e. This property defines the
position of the start point of the line.)

Usage

VGet Sequence.Object.StartPointObject, var

VSet Sequence.Object.StartPointObject, 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

String variable that will contain the value of the property.

value

String expression for the new value of the property. Valid vision objects for the
StartPointObject property are: Blob, Correlation, Edge, Geometric, Line, and Point objects.

Values

Screen or any object that runs prior to the Line object.

Remarks

When a Line object is first created, the StartPointObject property is set to Screen. However, Line objects
are normally attached to other vision objects. This is the purpose of the StartPointObject and
EndPointObject properties. Through these two properties the user can define a line between any two vision
objects (except Frames).

Frame objects cannot be used to define an start point for a Line object. However, this does not cause a
limitation because Frames are defined by other vision objects. In those cases where you want to define a
line start point with a Frame object, use a Point object in the frame to define the start point of the Line
object.

It is important to note that for each specific vision sequence, only those vision objects which are executed
prior to the Line object in the vision sequence steps will be available to use as an StartPointObject.