Re: [AGG] Bitmap resolution

[Gus G. <ag...@gr...>]

What does he mean by DPI? I didn't know BMP stored DPI information.  
Is the file resized? DPI (Dots Per Inch) is just a label. The real  
question is: is the image dimension being changed? Is this on  
purpose? If the image has x pixels by y pixels on entry and it has  
the same x pixels by y pixels on exit, nothing changed. If the "DPI"  
he speaks of is different, just change it back what whatever is  
needed. As I said, it's just a label with no bearing on the actual  
data. Now, if the image has a smaller x by y pixels on exit, than he  
is resizing it and the result is what should be expected.

g



On Jul 26, 2006, at 12:53 PM, Maxim Shemanarev wrote:

>>   FitToImageSize(m_dImageWidht,m_dImageHeight);
>
> What does it do?
>
>> 3) I process it with:
>
> [. . .]
> It also can change the size.
>
>> 3) I save the buffer with : m_pmap_window.save_as_bmp
>> 4) The resulting image is 72 dpi
>
> You load, resize/resample, and the save, right? So, I suppose you  
> get what you
> should expect.
>
> McSeem
>
>
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