setPosition

Move ROI object to new position

setPosition is not recommended. With the new ROIs, set the value of the Position property instead. For more information, see Compatibility Considerations.

Description

setPosition(h,pos) moves the position of the ROI object, h, to the location specified by pos.

setPosition(h,x,y) specifies the new x- and y-coordinates of points of a line or point ROI object.

Input Arguments

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ROI object, specified as an imellipse, imline, impoint, impoly, or imrect object.

New position of the ROI object, specified as a numeric array. The shape of the array depends on the type of ROI object.

ROI ObjectPosition
imellipse4-element vector of the form [xmin ymin width height], representing the new size and position of a bounding box around the ellipse. The new size of the bounding box is width-by-height pixels. The upper-left corner of the box is at the new (x,y) coordinate (xmin,ymin).
imline2-by-2 matrix of the form [x1 y1; x2 y2], representing the new position of the two endpoints of the line.
impoint1-by-2 vector of the form [x y].
impolyn-by-2 matrix. The two columns define the new x- and y-coordinates, respectively, of each of the n vertices.
imrect4-element vector of the form [xmin ymin width height]. The new size of the rectangle is width-by-height pixels. The upper-left corner of the rectangle is at the new (x,y) coordinate (xmin,ymin).

New x- or y-coordinates of points.

  • If h is an imline object, then x and y are 2-element vectors that represent the x- and y-coordinates of the two line endpoints.

  • If h is an impoint object, then x and y are numeric scalars that represent the x- and y-coordinate of the single point.

Compatibility Considerations

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Not recommended starting in R2018b

Introduced in R2008a