So, after some workaround I managed to get my cave data into GRASS,
and I can visualize it in NVIZ. The thin is, since it is a cavern, I'd
like to view it from below the topographic surface, but when I change
the Height in NVIZ to a value smaller than the minimum of the surface,
the surface is flipped upside down. NVIZ inverts the situation, so I
end up looking a upside down surface from above, not a correct durface
from below. See the attached files. In the first image, the cave is
below the surface, but with a small change in height, I get the second
image, with the cave above the "inverted"surface.
any help will be appreciated.
thanks
--
+-----------------------------------------------------------+
Carlos Henrique Grohmann - Guano
Geologist M.Sc - Doctorate Student at IGc-USP - Brazil
Linux User #89721 - carlos dot grohmann at gmail dot com
+-----------------------------------------------------------+
_________________
"Good morning, doctors. I have taken the liberty of removing Windows
95 from my hard drive."
--The winning entry in a "What were HAL's first words" contest judged
by 2001: A SPACE ODYSSEY creator Arthur C. Clarke
(attachments)
Carlos, this is a known problem with NVIZ (see GRASSLIST:9174).
http://grass.itc.it/pipermail/grassuser/2005-November/031305.html
A workaround is to use the twist slider to swing your inverted image around.
G'lcuk,
-Ian
On Dec 8, 2005, at 6:49 AM, Carlos Guâno Grohmann wrote:
So, after some workaround I managed to get my cave data into GRASS,
and I can visualize it in NVIZ. The thin is, since it is a cavern, I'd
like to view it from below the topographic surface, but when I change
the Height in NVIZ to a value smaller than the minimum of the surface,
the surface is flipped upside down. NVIZ inverts the situation, so I
end up looking a upside down surface from above, not a correct durface
from below. See the attached files. In the first image, the cave is
below the surface, but with a small change in height, I get the second
image, with the cave above the "inverted"surface.
any help will be appreciated.
thanks
--
+-----------------------------------------------------------+
Carlos Henrique Grohmann - Guano
Geologist M.Sc - Doctorate Student at IGc-USP - Brazil
Linux User #89721 - carlos dot grohmann at gmail dot com
+-----------------------------------------------------------+
_________________
"Good morning, doctors. I have taken the liberty of removing Windows
95 from my hard drive."
--The winning entry in a "What were HAL's first words" contest judged
by 2001: A SPACE ODYSSEY creator Arthur C. Clarke
<nviz_cave_below.jpg><nviz_cave_above.jpg>
>
What happens if a big asteroid hits Earth? Judging from realistic simulations involving a sledge hammer and a common laboratory frog, we can assume it will be pretty bad.
- Dave Barry
-------------------------------------------------------------
This message has been scanned by Postini anti-virus software.
thanks Ian, that helped.
On 12/8/05, Ian MacMillan <ian_macmillan@umail.ucsb.edu> wrote:
Carlos, this is a known problem with NVIZ (see GRASSLIST:9174).
http://grass.itc.it/pipermail/grassuser/2005-November/031305.html
A workaround is to use the twist slider to swing your inverted image
around.
G'lcuk,
-Ian
On Dec 8, 2005, at 6:49 AM, Carlos Guâno Grohmann wrote:
> So, after some workaround I managed to get my cave data into GRASS,
> and I can visualize it in NVIZ. The thin is, since it is a cavern, I'd
> like to view it from below the topographic surface, but when I change
> the Height in NVIZ to a value smaller than the minimum of the surface,
> the surface is flipped upside down. NVIZ inverts the situation, so I
> end up looking a upside down surface from above, not a correct durface
> from below. See the attached files. In the first image, the cave is
> below the surface, but with a small change in height, I get the second
> image, with the cave above the "inverted"surface.
>
> any help will be appreciated.
>
>
> thanks
> --
> +-----------------------------------------------------------+
> Carlos Henrique Grohmann - Guano
> Geologist M.Sc - Doctorate Student at IGc-USP - Brazil
> Linux User #89721 - carlos dot grohmann at gmail dot com
> +-----------------------------------------------------------+
> _________________
> "Good morning, doctors. I have taken the liberty of removing Windows
> 95 from my hard drive."
> --The winning entry in a "What were HAL's first words" contest judged
> by 2001: A SPACE ODYSSEY creator Arthur C. Clarke
> <nviz_cave_below.jpg><nviz_cave_above.jpg>
>
>
What happens if a big asteroid hits Earth? Judging from realistic
simulations involving a sledge hammer and a common laboratory frog, we
can assume it will be pretty bad.
- Dave Barry
-------------------------------------------------------------
This message has been scanned by Postini anti-virus software.
--
+-----------------------------------------------------------+
Carlos Henrique Grohmann - Guano
Geologist M.Sc - Doctorate Student at IGc-USP - Brazil
Linux User #89721 - carlos dot grohmann at gmail dot com
+-----------------------------------------------------------+
_________________
"Good morning, doctors. I have taken the liberty of removing Windows
95 from my hard drive."
--The winning entry in a "What were HAL's first words" contest judged
by 2001: A SPACE ODYSSEY creator Arthur C. Clarke