PCs & Mobiles Forum - Media Centre Style PC For CAD on a 42 - Page 1

PC case and keyboard easily sorted BUT

1) I wouldn't want to do CAD work at that resolution. What is he used to?
2) Display proportions will possibly look 'odd'. Circles will appear oval. 16:9 vs 4:3
2) I would be very worried about screen burn on a plasma screen.

This item was edited on Saturday, 24th January 2009, 01:18

In the time to watch a bit of TV and get upstairs bytemaster has said it all.
The resolution thing isn't right though - one you adjust the PC to the proper resolution (a widescreen one) it is OK.. BUT....
Resolution not high enough. Is that the resolution of the TV?
Would never use plasma for CAD. No matter what some may say about modern plasmas, CAD apps will have the same menus on all of the time and will damage it. I use CAD for hours a day..(but on LCD). In fact, I would be reluctant to run a PC for too long on a plasma.... that nice blue bar across the bottom............

Ste
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We will pay the price but we will not count the cost..

This item was edited on Saturday, 24th January 2009, 00:34

Quote:
The resolution thing isn't right though - one you adjust the PC to the proper resolution (a widescreen one) it is OK

If you change the display proportions on the PC to a wide screen format that will certainly let you show circular circles. But you will no longer have 1:1 pixel mapping which will degrade the image.

Anyway I think we both agree it is a bad idea.

I completely forgot about screen burn

Looks like I will give it a miss then

I was looking forward to a new project

Thanks for everyone's help

Screen burn will generally only "take" after about 2 hours of a static image, so if you were to say do an hour at a time that would negate that being a huge issue.

That being said I'm not sure about the pixel ratio stuff mentioned above cos I would only use the input for playback of video type content.
(Saying that though, my desktop looks damned impressive on my Panny at full resolution!)

Oh, and screen burn (or image retention to be more exact ) can be cured or at least masked... I fell asleep with Sky+ on and the simpsons playing one morning, woke up 7 hours later to see the blue box with "End of Recording. Press Back Up to Exit" glowing on my Samsung
6 hours of a static white Jpeg played as a VCD and you'd never know it had happened.

Jimbo : oÞ

"Making Teenagers depressed is like shooting fish inna barrel"

Quote:
If you change the display proportions on the PC to a wide screen format that will certainly let you show circular circles. But you will no longer have 1:1 pixel mapping which will degrade the image.Setting the PC to 1024x768 will be fine and give the correct 1:1 mapping. What is the degradation you're talking about? CAD apps don't work like that - as in it's not as though when you view something at 1:1 scale you can stick a ruler on the screen and measure it.. Not that I haven't seen anyone try it..

jimbo, getting rid of it after one-offs is possible (not always) but using it day in day out for hours would harm it..

Ste
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We will pay the price but we will not count the cost..

Quote:
Setting the PC to 1024x768 will be fine and give the correct 1:1 mapping. What is the degradation you're talking about? CAD apps don't work like that - as in it's not as though when you view something at 1:1 scale you can stick a ruler on the screen and measure it.. Not that I haven't seen anyone try it.

A PC set to 1024x768 is generating a display for a 4:3 screen, if you display that on a 16:9 screen at 1:1 pixel mapping the image is horizontally stretched. It is the same effect that you see when watching 4:3 SD material stretched to full screen on a wide screen display. (Everybody gets fatter).

The alternative is to set the PC to output 16:9 (say 1366x768), then the display proportions are correct but now each of the PCs pixels has to be represented by less than one screen pixel, or to put it another way. Each of the display's pixels has to represent 'one and a bit' pixels of the signal it is receiving (called interpolation). This can work fine for large areas of homogenous colour, but can play hell with fine detail, text etc.

lol - that's what I get for posting after midnight while half p***ed and then as I get up.
Just because 1024x768 is just about the most common PC ratio didn't stop me totally typing a load of bollocks as though it was a proper PC widescreen ratio....

Ste
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We will pay the price but we will not count the cost..

Your brain is probably scrambled from trying to explain consumer rights, I gave up on that one.