The shape element defints a single shape stimulus and specifies how the shape is presented.

Syntax

<shape shapename>
/ color = (red, green, blue)
/ erase = true(red, green, blue) or false
/ halign = alignment
/ hposition = decimal or variable
/ position = (x, y)
/ shape = shapename
/ size = (width, height)
/ valign = alignment
/ vposition = decimal or variable
</shape>

Properties

None.

Remarks

Shape stimuli provide a convenient means of overwriting previously presented stimuli during a presentation sequence, or for drawing background to be presented behind other stimuli.

Examples

The following defines a set of picture items presented on the right side of the screen:

<shape bluecircle>
/ shape = circle
/ color = (0, 0, 200)
</shape>