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Forum Index : Microcontroller and PC projects : E100 blit example?

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TrevorH
Senior Member

Joined: 06/04/2018
Location: United Kingdom
Posts: 145

Posted: 06:22pm 23 Jan 2020

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Hi all,

has anyone successfully converted the "hand" routine in the analog clock from cfunction to blit.

I find the cfunction version still corrupts the background.

I have looked at the guage demo and got that working for 1 pointer, but the structure is so different

and I can't get my head round using that method for 3 pointers.

any help would be much appreciated.

Trevor

JohnS
Guru

Joined: 18/11/2011
Location: United Kingdom
Posts: 4137

Posted: 07:23pm 23 Jan 2020

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Might the corruption be that the algorithm is wrong?

It's fairly easy to redraw/restore things such that the overall outcome isn't right.

Or are you saying the cfunction is buggy?

John

TrevorH
Senior Member

Joined: 06/04/2018
Location: United Kingdom
Posts: 145

Posted: 07:54pm 23 Jan 2020

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Hi john,

I wouldn't dare say that the cfunction is buggy, but using Lewis' Weather station code it all seems OK, but over a few hours the background seems to get corrupted.

Now using the blit command only with only a second hand over the same length of time does Not corrupt.

Trevor

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