Compare enhanced-path commands U and V

[Regina Henschel <regina.henschel@libreoffice.org>]

Hi,

from my mathematical understanding I think, that the following 
<enhanced-geomenty> elements should create the same shape. But the 
shapes differ in applications.
I have tested Calligra Karbon, Google Docs, Scribus, LibreOffice, and MS 
PowerPoint.

I'm wrong? And if yes, why? Or are the apps wrong?

Kind regards
Regina

<draw:enhanced-geometry svg:viewBox="0 0 21600 21600" 
draw:glue-point-type="segments" draw:type="non-primitive" 
draw:modifiers="30 75" draw:enhanced-path="V 0 0 21600 21600 ?f1 ?f3 ?f5 
?f7 L 10800 10800 N">
    <draw:equation draw:name="f0" draw:formula="10800*cos($0 *(pi/180))"/>
    <draw:equation draw:name="f1" draw:formula="?f0 +10800"/>
    <draw:equation draw:name="f2" draw:formula="10800*sin($0 *(pi/180))"/>
    <draw:equation draw:name="f3" draw:formula="?f2 +10800"/>
    <draw:equation draw:name="f4" draw:formula="10800*cos($1 *(pi/180))"/>
    <draw:equation draw:name="f5" draw:formula="?f4 +10800"/>
    <draw:equation draw:name="f6" draw:formula="10800*sin($1 *(pi/180))"/>
    <draw:equation draw:name="f7" draw:formula="?f6 +10800"/>
    <draw:handle draw:handle-position="10800 $0" 
draw:handle-polar="10800 10800"/>
    <draw:handle draw:handle-position="10800 $1" 
draw:handle-polar="10800 10800"/>
</draw:enhanced-geometry>


<draw:enhanced-geometry svg:viewBox="0 0 21600 21600" 
draw:glue-point-type="segments" draw:type="non-primitive" 
draw:modifiers="30 75" draw:enhanced-path="U 10800 10800 10800 10800 $0 
$1 L 10800 10800 N">
    <draw:handle draw:handle-position="10800 $0" 
draw:handle-polar="10800 10800"/>
    <draw:handle draw:handle-position="10800 $1" 
draw:handle-polar="10800 10800"/>
</draw:enhanced-geometry>

Attachment: Angle.odg
Description: application/vnd.oasis.opendocument.graphics

Attachment: Angle.odp
Description: application/vnd.oasis.opendocument.presentation