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Old 04-16-2012, 05:52 AM   #1
daveoily
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Question drawing onto a projection?


ok, so I'm not exactly new to linux, but this is a project where I'm starting to gather ideas from scratch, my hours worth of googling is not helping much, so I'm back looking for advice from people who may know.

I'm looking to start a system that will run a projector, and I want to draw directly onto the image it produces. I don't know if projectors are particularly resource draining. I'd really like to use it to draw on my wall using the gimp.

Are there any compatibility issues with projectors/pointers, has anyone seen or heard of a setup that does this well?

Your thoughts and suggestions are, as always appreciated

have fun

Dave

Last edited by daveoily; 04-16-2012 at 05:54 AM.
 
Old 04-16-2012, 06:49 AM   #2
ericson007
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Any system will run a projector. It will see it as a monitor so it should work. No real issues apart from the resolution to be adjusted.

http://www.linuxquestions.org/questi...atible-724515/

For drawing with gimp that would not be an issue, the projector itself will not drain any more resources unless you get X to render two screens and extend them etc, but even then, on my laptop connected to an external monitor and being used to extend the workspace, there is no visible detrimental effects.
 
Old 04-16-2012, 08:14 AM   #3
daveoily
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Thanks ericson007!

So running a screen really isn't very resource intensive, I always thought it would be... and just about any projector should work, that's good news.

So how about the pointy stick end of things, I'm pretty sure I've seen hand held pointing devices click things on a screen, but it could just be my imagination, if these exist, what are they called? It's difficult to search for something if you don't even know its name! Are there drivers for such things on linux? And if so, are they any good?

to be clear, this is the sort of thing I'm looking at doing, the linux way of course...

http://www.youtube.com/watch?v=7mz0AiU98ls

Seems he uses a webcam to hone in on the red dot, but I'm open to other suggestions.

Last edited by daveoily; 04-16-2012 at 09:30 AM.
 
Old 04-16-2012, 12:37 PM   #4
ericson007
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So in reality you are after what is called an interactive whiteboard. I couldn't watch your movie cause I am using really old versions of programmes, but they are stable and secure. There are many options. Google interactive whiteboards, but the cheapest option is one of the following.

1.)Just get a tablet for writing. (can't write on the actual projection)
2.)Look at setting up a nintendo wii remote as a whiteboard controller. (infrared based so you can write on the wall and it shows on the pc)

If I may say so, why not just get a 50 inch tv, I know in the country I am living they are way cheaper than projectors. Cover it with a film strip to prevent scratches and hook up the wii mote.
 
Old 04-16-2012, 01:13 PM   #5
daveoily
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Thankyou! Yes! An interactive whiteboard is what I'm after, or something like it. In short really I'd like to use the gimp, with a proper pen, holding a mouse and looking at a screen is ok, but not too natural, to get the best out of it, I think the tactile experience is very important.

The tablet is a way I've considered, but linux on a tablet, using the gimp? It may turn out to be a viable option, but I don't know anyone that's made it happen, although in theory it's probably quite doable.

I don't really know much about the wii remote either, (I always looked at the wii as a bit of a kids toy, and I have no kids) so if I could use it that way, that might be a good way to do it.

There may be issues with the big TV setup as I don't do TV, and in the UK, that means having to deal with TV license people, which is really annoying, but there are loopholes if there is no live broadcast watching going on (this is another topic entirely, and very possibly not for these boards either!)

I will have a good think about these options they're just the sort of thing I'm looking for
 
Old 04-17-2012, 04:33 AM   #6
ericson007
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12222

Quote:
Originally Posted by daveoily View Post
Thankyou! Yes! An interactive whiteboard is what I'm after, or something like it. In short really I'd like to use the gimp, with a proper pen, holding a mouse and looking at a screen is ok, but not too natural, to get the best out of it, I think the tactile experience is very important.

The tablet is a way I've considered, but linux on a tablet, using the gimp? It may turn out to be a viable option, but I don't know anyone that's made it happen, although in theory it's probably quite doable.

I don't really know much about the wii remote either, (I always looked at the wii as a bit of a kids toy, and I have no kids) so if I could use it that way, that might be a good way to do it.

There may be issues with the big TV setup as I don't do TV, and in the UK, that means having to deal with TV license people, which is really annoying, but there are loopholes if there is no live broadcast watching going on (this is another topic entirely, and very possibly not for these boards either!)

I will have a good think about these options they're just the sort of thing I'm looking for
I am not so sure about the loopholes, in South Africa they will make you proof that you have a license when you buy a tv, law there states that you have to pay a license fee if you have a device with a tuner. Whether tv, video recoreder, capture card or what ever... So I am not sure about the loopholes in the UK. Here in Japan on the other hand, they knock on your door and ask to pay, you just tell them you watch cable and not their channels and they don't bother you again.

In regards to the tablets. I have used wacom tablets with linux and they worked just fine for what I needed.
 
Old 04-17-2012, 05:26 AM   #7
daveoily
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Smile

日本人ですか?
In the UK, we just don't answer the door, the last time I was in the bath anyway I could probably get a big telly for free, as we've just had the digital telly changeover and there's probably a few kicking about on freecycle the wiimote thing looks very promising, I think I'll be trying that sometime soon (and it's pretty cheap by the looks of it )

When you say tablet, do you mean type 1 or type 2? I find it odd that the industry hasn't come up with a word to distinguish them, type 1 is really a drawing tablet. I think it'd be great if the next generation of drawing tablet had their own screen so you could draw on the picture as it is the seperation of picture from pen that bugs me so much!

because I have something of type 1 and I really don't use it, it's better than a mouse, but I still don't get on with it much, the wiimote thing though will be fun to do, I'll have a go at it over the coming few weeks
 
Old 04-17-2012, 09:38 PM   #8
ericson007
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Quote:
Originally Posted by daveoily View Post
日本人ですか?
In the UK, we just don't answer the door, the last time I was in the bath anyway I could probably get a big telly for free, as we've just had the digital telly changeover and there's probably a few kicking about on freecycle the wiimote thing looks very promising, I think I'll be trying that sometime soon (and it's pretty cheap by the looks of it )

When you say tablet, do you mean type 1 or type 2? I find it odd that the industry hasn't come up with a word to distinguish them, type 1 is really a drawing tablet. I think it'd be great if the next generation of drawing tablet had their own screen so you could draw on the picture as it is the seperation of picture from pen that bugs me so much!

because I have something of type 1 and I really don't use it, it's better than a mouse, but I still don't get on with it much, the wiimote thing though will be fun to do, I'll have a go at it over the coming few weeks
Not Japanese no, just living here.

I am talking about the pen tablet (type2) not the computer type, so it will be the one you have already. Don't spend more money first test with the tablet you have and check it works.
 
  


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