Cameray1 result – Epson 5 User Manual

Page 41

CameraY1 Result

Applies To

Vision Objects: Line

Description

Returns the starting point position Y coordinate (Y1) of a Line object in Camera coordinates.

Usage

VGet Sequence.Object.CameraY1, var

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

Real variable that will contain the value of the result.

Values

Real number in millimeters

Remarks

Every line must have a starting point and ending point. The CameraY1 and CameraY2 results represent the
Y coordinate position starting (X1,Y1) and endpoints (X2,Y2) of the specified Line object. Since Line
object starting and endpoints can be assigned to other vision objects, the (CameraX1, CameraY1) and
(CameraX2, CameraY2) coordinate pairs can actually be Camera coordinate positions which match the
CameraX and CameraY results for other vision objects. (In other words if a Line object's starting point is
defined by a Correlation object, then the (CameraX, CameraY) results from the Correlation object will
match the (CameraX1, CameraY1) results for the Line object.)

It should be noted that the CameraY1 result can only be calculated for vision sequences which have been
associated with a calibration. If no calibration has been assigned to the vision sequence then if VGet is
used to retrieve the CameraY1 result, an error will occur.