The height of the image used by a image survey item.
<image>
The value can be specified in percentages, pixels, or points.
The following displays the value of imageheight in a text stimulus:
<text sometext>
/ items= ("imageheight = <% image.i1.imageheight %>")
</text>
The following displays the value of imageheight in an instruction page:
<page somepage>
imageheight = <% image.i1.imageheight %>
</page>