<Icon> x, y, w, h elements are not supported

I run JAK on this kmz: http://radarmaster.vlieghinder.nl/kmz/ehamtail0.kmz
There is one big image used for multiple icons.

KML reference states that there may be gx:x, gx:y, gx:w, gx:h elements inside 
<Icon>

For example
<Icon>
  <href>/home/mydir/myiconpalette.jpg</href>
  <gx:w>138</gx:w>
  <gx:h>138</gx:h>
    <!-- Since x and y values are omitted, these measurements are made starting at
    the lower-left corner of the icon palette image -->
</Icon>

I don't get expected values.

Original issue reported on code.google.com by drykova...@gmail.com on 31 Mar 2011 at 2:10

vylan / javaapiforkml

<Icon> x, y, w, h elements are not supported #30