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URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN FILE

The place for questions, problems, comments and tips regarding the camera calibration.

URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN FILE

Postby Lunat1c » Fri Nov 29, 2013 8:27 am

Fellow Davidians,

I print the calibration pattern from the printout folder Calibpoints_V3_A4_leftSide.pdf but I can't get exactly 120 mm when I scale it because Adobe Reader doesn't allow for integers as scale factors.

Can somebody send me an exact 120mm scale calibration pattern file that is print ready today?
And maybe later 240 mm too... (But as I am going to print it with A4 papers, it should be parted.)

I need you quick help,

And by the way, if I enter a 121,79 as calibration scale, would it slow down DAVID? (I thougt it might be the case.)

Best regards,
Mitsubishi xd 206u, logitech pro9000, acer 3820tg
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby argo » Fri Nov 29, 2013 8:50 am

Hello Lunat1c

Here you are.

Regards,
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby Lunat1c » Fri Nov 29, 2013 9:23 am

I thank you Argo for your quick response,


I converted it to PDF, it was a CDR file, which I don't know, I have no suitable software to open it also...
I printed your file but it is too tiny, microscobic WHY?

In adobe acrobat reader it shows up too tiny...
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby Lunat1c » Fri Nov 29, 2013 9:35 am

After I converted CDR to JPG online but this result is even worse....

If I scale either one, the resolution becomes very very low that I cannot use it.
Attachments
Left_120 (1).jpg
Left_120 (1).jpg (5.73 KiB) Viewed 3509 times
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby argo » Fri Nov 29, 2013 9:57 am

No no.. do not convert them.
CDR is a file format for CorelDraw.
If you want to have the most accurate size and quality, my suggestion is to install the coreldraw on your system.
or maybe some other guy can show a way to convert a cdr to pdf as its original and with no change.

Regards,
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby ShadowTail » Fri Nov 29, 2013 10:06 am

I would suggest that you simply print it out and then measure the actual length and use that in David.

If the correct scale is not important for the scan, you can tell David just about anything for the scale factor and it will still work just fine.
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby MagWeb » Fri Nov 29, 2013 12:17 pm

Lunat1c wrote:it was a CDR file, which I don't know, I have no suitable software to open it also...


Freeware XnView should do it.

http://www.xnview.com
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby MagWeb » Fri Nov 29, 2013 2:18 pm

Just simpler to get a smaller size:

Maybe your printer driver allows to set float values? Mine here does.
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby Lunat1c » Fri Nov 29, 2013 2:35 pm

Dear Gunter,

The xnview didn't open the file telling that "the file's format wasn't detected."

The printer's driver doesn't allow float numbers unfortunately.

Shadowtail asserts that entering float numbers into DAVID as a calibration board scale doesn't slow down anything. What do you think about it?

Best regards,
Mitsubishi xd 206u, logitech pro9000, acer 3820tg
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby argo » Fri Nov 29, 2013 3:07 pm

Dear Lunat1c,

I did convert the cdr into pdf an i guess they are ok(I did not print to check).
Please check them and if they are fine let me know to make a 240 for you.

Regards,
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby Lunat1c » Fri Nov 29, 2013 3:49 pm

Argo thank you very very much!

That's a precise 120 mm scaled calibration pattern. Like a Remedy!
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby Sven » Fri Nov 29, 2013 5:28 pm

Lunat1c wrote:And by the way, if I enter a 121,79 as calibration scale, would it slow down DAVID? (I thougt it might be the case.)

I think you may have to enter "121.79", not comma, depending on your country...
In any case this will NOT slow DAVID down at all. Same as "120".
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby MagWeb » Fri Nov 29, 2013 6:08 pm

Seems to be solved,

Just a note about accuracy of the put in Scale value (Sven, please correct this if there's something I missed):
Also with a Scale value that owns some bigger error you should be able to calibrate and scan although the result will be bigger or smaller.
There are some parameters, eg. max and min cutting plane or background filter, that may cause some trouble but the ratio of the dimensions and so lengths will be proportional. After a fusion you may go to some app to scale the OBJ to a right size.
Depending on the topology of the object the error of alignment maybe bigger than the error you get rounding the scale so it's allways a good idea to compare the final size of the virtual object to its real world size.
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Re: URGENT! WHO CAN SEND ME AN EXACT 120mm CALIBR. PATTERN F

Postby Sven » Fri Nov 29, 2013 8:32 pm

Correct.
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