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Tue, 30 Nov 1999 00:11:00 EST

Ian,

v1.8.7.5 (just uploaded) has that issue fixed. It was a strange interaction between the crop and Surveyor module .. but the bug was in the Surveyor module.

STeven.

Cropping and COG - Line following

Tue, 30 Nov 1999 00:11:00 EST

Hi there STeven,

Me again :)

I just wanted to point out that in the attached .robo file, my SRV_1b's camera isn't really pointing straight down, so I decided to crop the top part of the image off.

Now, following the line following tutorial you gave ages ago, I tried to add the COG pipeline onto the end after cropping and it goes all weird as you may see if you give it a try.

On 'watch variables I get COG X to be:

86 ( for the COG being on the left) 144 ( " " middle) 188 ( " " right)

So, this makes a bit of sense despite '86' should really correspond to '0' I guess.

I think the problem lies with cropping and therefore seems to be some stretching of the COG line.

Hopefully you can see what is going wrong

Best regards

Ian R

RoboRealm Forum

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Cropping and COG - Line following