Epson Net 5 사용자 설명서

Extrema Result

Runtime only

Applies To

Vision Objects: Blob

Description

Returns the blob extrema coordinates.

Usage

VGet Sequence.Object.Extrema [(result)], varMinX, varMaxX, varMinY, varMaxY

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.

varMinX

Real variable containing minimum X position of the blob's Extrema.

varMaxX

Real variable containing maximum X position of the blob's Extrema.

varMinY

Real variable containing minimum Y position of the blob's Extrema.

varMaxY

Real variable containing maximum Y position of the blob's Extrema.

result

Optional result number. If omitted, the result number is the CurrentResult. Used for objects
that return multiple results.

Values

The values returned are always in pixels and may be from 1 - video height.

Remarks

The MinX, MaxX, MinY, and MaxY results together define a blob's smallest enclosing rectangle that is
aligned with the coordinate axes and completely encloses the blob. This rectangle is known as the extrema.
The Extrema result enables you to retrieve all four coordinates in one command.

The Extrema value can be fractional. For example, 100.5 would be between the 100 and 101 pixels.