| Re: obj graphics fly-thru help [message #21986] |
Fri, 13 October 2000 00:00 |
Martin Schultz
Messages: 515
Registered: August 1997
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Senior Member |
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Rick Towler wrote:
>
> And yes, I have looked at the IDL demo program flythru.pro. This
> interface isn't close to what I would call a flythru. Try it and you'll
> see what I mean.
>
> I am starting to think that the problem is more complex than I first
> thought.
>
> Does anybody know if this is even possible in IDL?
>
> -RHT
>
> Rick Towler wrote:
>>
>> This is a second cry for help.
>>
>> I am trying to develop a set of algorithms that will allow me to
>> "fly/walk thru" a 3d scene. Via keyboard events I translate the op
>> model in the XZ plane (forward/back and slide left/right). This is easy
>> enough.
>>
>> What I would like to do is us the mouse to adjust pitch and yaw of the
>> viewer (look up/down and left/right). So far my attempts have been less
>> than perfect. As I understand it, the solution is to change the point
>> of rotation of the Top Model from 0,0,0 to the "eye" of the viewer.
>> Basic trig. But this isn't yielding the expected results. My guess is
>> that I am not understanding the entire problem.
>>
>> Has anybody done anything like this? Do you have any tips?
>>
>> Thanks.
>>
>> -Rick Towler
Perhaps you could profit from looking at the ARGOS tool:
http://www.lapeth.ethz.ch/argos/argos.html
I have never used it myself, but flythrough is what David Bresch and
Mark Liniger advertize...
Cheers,
Martin
--
[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[ [[[[[[[
[[ Dr. Martin Schultz Max-Planck-Institut fuer Meteorologie [[
[[ Bundesstr. 55, 20146 Hamburg [[
[[ phone: +49 40 41173-308 [[
[[ fax: +49 40 41173-298 [[
[[ martin.schultz@dkrz.de [[
[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[ [[[[[[[
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| Re: obj graphics fly-thru help [message #21995 is a reply to message #21986] |
Thu, 12 October 2000 00:00  |
Rick Towler
Messages: 821
Registered: August 1998
|
Senior Member |
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And yes, I have looked at the IDL demo program flythru.pro. This
interface isn't close to what I would call a flythru. Try it and you'll
see what I mean.
I am starting to think that the problem is more complex than I first
thought.
Does anybody know if this is even possible in IDL?
-RHT
Rick Towler wrote:
>
> This is a second cry for help.
>
> I am trying to develop a set of algorithms that will allow me to
> "fly/walk thru" a 3d scene. Via keyboard events I translate the op
> model in the XZ plane (forward/back and slide left/right). This is easy
> enough.
>
> What I would like to do is us the mouse to adjust pitch and yaw of the
> viewer (look up/down and left/right). So far my attempts have been less
> than perfect. As I understand it, the solution is to change the point
> of rotation of the Top Model from 0,0,0 to the "eye" of the viewer.
> Basic trig. But this isn't yielding the expected results. My guess is
> that I am not understanding the entire problem.
>
> Has anybody done anything like this? Do you have any tips?
>
> Thanks.
>
> -Rick Towler
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