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#1 Posted : Sunday, July 16, 2006 7:59:11 PM(UTC)

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Hy, I´m trialling the Aurigma GM 3.5 for .NET 1.1 and I guess I found a bug. Please, let me know if I am doing something wrong.

I have the same image (100 x 100 pixels, created in Corel Photopaint 7.0, at 150 dpi) saved in five different file formats: (BMP, GIF, JPG, PNG and TIF). Trying to get the horizontal resolution using the Main.exe Windows Demo provided along the Aurigma package, I get the folloing results:

PNG and BMP: 149,987
GIF: 72
JPG: 150
TIF: 23,25005.

I realized that the TIF resolution must be multiplied by 2,54 (1 inch = 2,54 cms) twice for me to get the 150. (?????)

Is there anything I´m doing wrong or this is a bug?
Thiago Martins
#2 Posted : Monday, July 17, 2006 10:57:52 PM(UTC)

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Hi Thiango,

> PNG and BMP: 149,987

As far as I know they store resolution in other units than inches (in meters or something like this). That's why there is a rounding error.

> GIF: 72

GIF format does not store resolution at all. That's why standard fallback value is used.

> TIF: 23,25005.

Perhaps the original file stores resolution in centimeters rather than in inches and Graphics Mill did not process it properly. Developers will take a look into this problem.
#3 Posted : Saturday, July 29, 2006 5:56:37 AM(UTC)

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Hi Andrew,

Thanks for the answer.

You told your developers would take a look at the TIF case. Is it already fixed? Do you have a expected date to issue a patch or a new version? I´m new to this forum (so I am to Aurigma) and don´t know how your support service works.

Back to the problem, I also found that saving back the image, the resolution tags are changed. I saw it with the following code:

Aurigma.GraphicsMill.Bitmap bitmap = new Aurigma.GraphicsMill.Bitmap(@"c:\a.tif");

When I open the file c:\b.tif using Corel PhotoPaint, I see the resolution as 23 DPI instead of 150 as I see for c:\a.tif.

We are now in contact with Sean Hall to buy one license. And I really need this fixed. Is there anything you could do? Our deadline is close and this is an important requisite for our project.

Thanks in advance.


Thiago Martins
#4 Posted : Sunday, July 30, 2006 7:44:26 PM(UTC)

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Hello Thiago,

The bug fix will be available with the upcoming release of the product. If you need the fixed version until the next release - please submit case.

Edited by user Thursday, May 22, 2008 10:35:20 PM(UTC)  | Reason: Not specified

Sincerely yours,
Dmitry Sevostyanov

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