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List:       kstars-devel
Subject:    Re: [Kstars-devel] Note on drawing speed
From:       Jan Kotek <opencoeli () gmail ! com>
Date:       2010-03-27 10:27:21
Message-ID: bf11139d1003270327h2d9dd2e9q900cb849228479fd () mail ! gmail ! com
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Hi,

I dont now how in QT, but in Java there two methods 'moveTo' and 'paintTo'.
Make sure that you are using 'moveTo' when both points are of screen.

Jan

On Wed, Mar 10, 2010 at 5:27 PM, Khudyakov Alexey
<alexey.skladnoy@gmail.com> wrote:
> В соо щении от 10 марта 2010 20:12:39 вы написали:
>> Sorry, I meant drawPolyline(). drawLines would work, but
>> drawPolyLine() in this case would be better - you need a smaller
>> array. I suspect just this change would be a great improvement. I
>> remember advices about using this kind of calls over single primitive
>> ones even at the X11 level.
>>
> Thank you for pointers. Sadly such transformation isn't trivial. There many
> checks for visibility
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