[gameprogrammer] Re: Image sizing with constrain
- From: Robbert de Groot <zekaric@xxxxxxxx>
- To: gameprogrammer@xxxxxxxxxxxxx
- Date: Wed, 28 Jul 2004 12:40:18 -0400 (EDT)
Oops. You wanted the y to reduce by 70...
X / (300 - 70) = 400 / 300
X = (400 * (300 - 70)) / 300
X = 306.666...
So 307ish pixels in the X. Same formula though.
--- Robbert de Groot <zekaric@xxxxxxxx> wrote:
> Y / (400 - 70) = 300 / 400
> Y = (300 * (400 - 70)) / 400;
> Y = 247.5
>
> So 247 or 248 pixels in the y will be needed.
>
> The mathy formula.
>
> X/Y = X'/Y'
>
> which is just making the aspect ratios match.
>
>
> --- Orel Beckford <force_ogb@xxxxxxxxx> wrote: > Hi
> > I have'nt posted to this list for months, still
> > reading you mails :-)
> >
> > I having a problem trying to resize an image with
> > constrain. for example if I have an image which was
> > 400 x 300 and I wanted to reduce the x of the image by
> > 70, I need to calculate what the reduction of y
> > should be, to keep the image looking like the the
> > original but smaller, if I was to reduce the y by 70
> > also the image looks a bit stretched, does anyone have
> > the formular to work out how much to reduce the y by.
>
>
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