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I have made a simple java MIDlet, to draw an analog clock. The clock appeared circular in the 6310i emulator (PC VGA screen is aspect ratio 1:1) but appeared oval in the actual 6310i device. Is there any "official" way to retrieve aspect ratio, so as not to hard-code it inside my software?
no, the aspect ratio is not retreivable in j2me. (though either basic midp, or nokias extensions)
you would do best assuming the ratio is 1:1 - and live with the distorted shape.
I tried to do the same thing and of course got the same result. After some measuring with a ruler I found out that my circle was exactly 10.0 mm high and 8.5 mm wide.
If you want it to be 10.0 mm wide you have to:
8.5 * x = 10
10
x = --
8.5
x = 1.17647... (which is the value you shall multiplay x with)
Maybe I was a little bit too educational now =)
/Bjarne
oops. that didn't look too good but i think you understand =)
..and of course that value is what you should multiply your arc width with, x was not a very good choice of variable name!