dropposition attribute

The dropposition attribute indicates the screen location where stimuli are positioned after being dragged and dropped onto a valid drop target.

Member of

Syntax

/ dropposition = (x value, y value)

/ dropposition = (x constant, y constant)

Parameters

x constant

One of the following:

Value	Description
anywhere	The stimulus is positioned wherever on the target it was dropped.
center	The stimulus is positioned on the horizontal center of the target.
left	The stimulus is positioned on the left side of the target.
right	The stimulus is positioned on the right side of the target.

x value

The horizontal canvas coordinate in pixels, percent(default), or points.

y constant

One of the following:

Value	Description
anywhere	The stimulus is positioned wherever on the target it was dropped.
center	The stimulus is positioned on the horizontal center of the target.
top	The stimulus is positioned on the top side of the target.
bottom	The stimulus is positioned on the bottom side of the target.

y value

The vertical canvas coordinate in pixels, percent(default), or points.

Remarks

Horizontal dropposition is relative to the left side of the canvas. 0% is the left edge of the canvas and 100% is the right edge. Vertical dropposition is relative to the top of the canvas, with 0% placing the dropped item at the top and 100% placing it at the bottom edge. Percentages may be specified as decimals (e.g., 52.968) for increased precision. The default dropposition is the middle of the stimulus.

Examples

The following sets the dropposition of the text to the lower left corner of the canvas:

<text sometext>
/ items = ("ipsum")
/ dropposition = (0, 100)
</text>

The following sets the dropposition of the text to the middle of the canvas with 800 X 600 pixels:

<text sometext>
/ items = ("ipsum")
/ dropposition = (400px, 300px)
</text>

The following sets the dropposition based on the trial number:

<text sometext>
/ items = ("ipsum")
/ dropposition = (trial.mytrial.currenttrialnumber * 5, trial.mytrial.currenttrialnumber * 5)
</text>