Re: [pygame] Bug in pygame.draw.ellipse
I created an Issue: https://bitbucket.org/pygame/pygame/issue/233/ On 09/02/15 14:20, Florian Krause wrote: I was actually wrong. It seems even worse. Pyjama is not capable to draw ellipses with odd sizes at all. It will always be the same ellipse as x-1, y-1. E.g. an elipse with size 3,3 will result in the same ellipse as the one with size 2,2. Can anyone reproduce this? On Mon, Feb 9, 2015 at 1:36 PM, leo kirotawa kirot...@gmail.com mailto:kirot...@gmail.com wrote: Since pygame is bind for SDL , have you tried in pure SDL ? Maybe it`s bug from there :) On Mon, Feb 9, 2015 at 10:05 AM, diliup gabadamudalige dili...@gmail.com mailto:dili...@gmail.com wrote: The mysteries of pygame. On 9 Feb 2015 16:25, Florian Krause siebenhundertz...@gmail.com mailto:siebenhundertz...@gmail.com wrote: Hi there, there seems to be a bug in pygame.draw.ellipse, where if either x or y of size is odd, then the resulting eclipse will have a real size of x-2, y-2. So basically, to draw an ellipse that has 3 x 3 pixels on the screen, one needs to use pygame.ellispe.draw with a size of 5 x 5. Best, Florian -- www.fladd.de http://www.fladd.de - Homepage of Florian Krause -- -- Leônidas S. Barbosa (Kirotawa) blog: corecode.wordpress.com http://corecode.wordpress.com -- www.fladd.de http://www.fladd.de - Homepage of Florian Krause
Re: [pygame] Bug in pygame.draw.ellipse
Would like an admin please email me to set up an account on pygame.org 2015-02-09 15:58 GMT+01:00 Lorenz Quack d...@amberfisharts.com: Not a bug in SDL since the draw.ellipse function implements the ellipse logic itself. I didn't try to reproduce the code but it makes sense from looking at the source. There are calls like this: draw_ellipse(surf, rect-x+rect-w/2, rect-y+rect-h/2, rect-w/2-loop, rect-h/2-loop, color); because the internal draw_ellipse function expects the midpoint and two radii. Note that the 4 middle arguments are of type int so the division by two gets floored so any odd width or height is essentially the same as the next lower even number (as far as the code draw_ellipse function is concerned). I therefore think this bug report is legit. Cheers, Lorenz On 09/02/15 14:20, Florian Krause wrote: I was actually wrong. It seems even worse. Pyjama is not capable to draw ellipses with odd sizes at all. It will always be the same ellipse as x-1, y-1. E.g. an elipse with size 3,3 will result in the same ellipse as the one with size 2,2. Can anyone reproduce this? On Mon, Feb 9, 2015 at 1:36 PM, leo kirotawa kirot...@gmail.com mailto: kirot...@gmail.com wrote: Since pygame is bind for SDL , have you tried in pure SDL ? Maybe it`s bug from there :) On Mon, Feb 9, 2015 at 10:05 AM, diliup gabadamudalige dili...@gmail.com mailto:dili...@gmail.com wrote: The mysteries of pygame. On 9 Feb 2015 16:25, Florian Krause siebenhundertz...@gmail.com mailto:siebenhundertz...@gmail.com wrote: Hi there, there seems to be a bug in pygame.draw.ellipse, where if either x or y of size is odd, then the resulting eclipse will have a real size of x-2, y-2. So basically, to draw an ellipse that has 3 x 3 pixels on the screen, one needs to use pygame.ellispe.draw with a size of 5 x 5. Best, Florian
Re: [pygame] Bug in pygame.draw.ellipse
Not a bug in SDL since the draw.ellipse function implements the ellipse logic itself. I didn't try to reproduce the code but it makes sense from looking at the source. There are calls like this: draw_ellipse(surf, rect-x+rect-w/2, rect-y+rect-h/2, rect-w/2-loop, rect-h/2-loop, color); because the internal draw_ellipse function expects the midpoint and two radii. Note that the 4 middle arguments are of type int so the division by two gets floored so any odd width or height is essentially the same as the next lower even number (as far as the code draw_ellipse function is concerned). I therefore think this bug report is legit. Cheers, Lorenz On 09/02/15 14:20, Florian Krause wrote: I was actually wrong. It seems even worse. Pyjama is not capable to draw ellipses with odd sizes at all. It will always be the same ellipse as x-1, y-1. E.g. an elipse with size 3,3 will result in the same ellipse as the one with size 2,2. Can anyone reproduce this? On Mon, Feb 9, 2015 at 1:36 PM, leo kirotawa kirot...@gmail.com mailto:kirot...@gmail.com wrote: Since pygame is bind for SDL , have you tried in pure SDL ? Maybe it`s bug from there :) On Mon, Feb 9, 2015 at 10:05 AM, diliup gabadamudalige dili...@gmail.com mailto:dili...@gmail.com wrote: The mysteries of pygame. On 9 Feb 2015 16:25, Florian Krause siebenhundertz...@gmail.com mailto:siebenhundertz...@gmail.com wrote: Hi there, there seems to be a bug in pygame.draw.ellipse, where if either x or y of size is odd, then the resulting eclipse will have a real size of x-2, y-2. So basically, to draw an ellipse that has 3 x 3 pixels on the screen, one needs to use pygame.ellispe.draw with a size of 5 x 5. Best, Florian
[pygame] Bug in pygame.draw.ellipse
Hi there, there seems to be a bug in pygame.draw.ellipse, where if either x or y of size is odd, then the resulting eclipse will have a real size of x-2, y-2. So basically, to draw an ellipse that has 3 x 3 pixels on the screen, one needs to use pygame.ellispe.draw with a size of 5 x 5. Best, Florian -- www.fladd.de - Homepage of Florian Krause
Re: [pygame] Bug in pygame.draw.ellipse
The mysteries of pygame. On 9 Feb 2015 16:25, Florian Krause siebenhundertz...@gmail.com wrote: Hi there, there seems to be a bug in pygame.draw.ellipse, where if either x or y of size is odd, then the resulting eclipse will have a real size of x-2, y-2. So basically, to draw an ellipse that has 3 x 3 pixels on the screen, one needs to use pygame.ellispe.draw with a size of 5 x 5. Best, Florian -- www.fladd.de - Homepage of Florian Krause
Re: [pygame] Bug in pygame.draw.ellipse
I was actually wrong. It seems even worse. Pyjama is not capable to draw ellipses with odd sizes at all. It will always be the same ellipse as x-1, y-1. E.g. an elipse with size 3,3 will result in the same ellipse as the one with size 2,2. Can anyone reproduce this? On Mon, Feb 9, 2015 at 1:36 PM, leo kirotawa kirot...@gmail.com wrote: Since pygame is bind for SDL , have you tried in pure SDL ? Maybe it`s bug from there :) On Mon, Feb 9, 2015 at 10:05 AM, diliup gabadamudalige dili...@gmail.com wrote: The mysteries of pygame. On 9 Feb 2015 16:25, Florian Krause siebenhundertz...@gmail.com wrote: Hi there, there seems to be a bug in pygame.draw.ellipse, where if either x or y of size is odd, then the resulting eclipse will have a real size of x-2, y-2. So basically, to draw an ellipse that has 3 x 3 pixels on the screen, one needs to use pygame.ellispe.draw with a size of 5 x 5. Best, Florian -- www.fladd.de - Homepage of Florian Krause -- -- Leônidas S. Barbosa (Kirotawa) blog: corecode.wordpress.com -- www.fladd.de - Homepage of Florian Krause
Re: [pygame] Bug in pygame.draw.ellipse
Since pygame is bind for SDL , have you tried in pure SDL ? Maybe it`s bug from there :) On Mon, Feb 9, 2015 at 10:05 AM, diliup gabadamudalige dili...@gmail.com wrote: The mysteries of pygame. On 9 Feb 2015 16:25, Florian Krause siebenhundertz...@gmail.com wrote: Hi there, there seems to be a bug in pygame.draw.ellipse, where if either x or y of size is odd, then the resulting eclipse will have a real size of x-2, y-2. So basically, to draw an ellipse that has 3 x 3 pixels on the screen, one needs to use pygame.ellispe.draw with a size of 5 x 5. Best, Florian -- www.fladd.de - Homepage of Florian Krause -- -- Leônidas S. Barbosa (Kirotawa) blog: corecode.wordpress.com
