Hello Lauire,
Thanks for responding.
The surface has 320,000 triangles & 94,000 points in about 100 ac. I get
your drift here, it's data density not area. The performance is slow but not
unmanagable & since 08 came in the mail today this may not even be an issue
but I'd like some sort of a benchmark for this & future jobs.
The aerial data we get isn't the cleanest in terms of the number of
verticies used but we prefer to use the data as it was sent. Mapcleanups &
overkill either take hours or just crash so it's not even worth it. I am
just beginning this project on a very steep mountain. I am probably going to
keep one surface since we will disturb very little of it & I know the FG
model will be very small in comparison, but...
what if I was going to have a larger FG? How would it be with 2 tins that
large? We did a 300+ ac. site in software called Hasp in the 80's & we broke
the tin into componets for each phase of the subdivision as I have heard
many firms do. Again I think I know where I am going with this one. I'm
trying to get ready for the next fly over. They're getting cheaper.
Thank again,
John Mayo
"Laurie Comerford" wrote in message
news:5566038@discussion.autodesk.com...
Hi John,
How many triangles are there in your surface?
The actual extent of the surface is not a measure of its size and
workability.
A few months ago I built a surface with an area roughly matching that of the
surface of the moon. Everything associated with it worked lightning fast
because it only had a small data content.
--
Laurie Comerford
CADApps
www.cadapps.com.au
www.civil3Dtools.com
"John Mayo" wrote in message
news:5565999@discussion.autodesk.com...
Thank-you all. The knowledge & experience is always appreciated.
--
John Mayo
Project Engineer
Conklin Associates
Ramsey, NJ
Civil 3D 2007, LDT 2007, Raster Design 2007
P-IV at 3.5 GHz
2 GB Ram
Nvidea Quadro FX w/ 128 MB Ram
"Allen Jessup" wrote in message
news:5565860@discussion.autodesk.com...
I don't often have them that big. I had to do a comparison of elevations
from aerial work in 2 different datums for a portion of our county. I tried
to use LandXML to accomplish the vertical conversion but didn't succeed. I
ended up outputting all the points to CorpsCon and converting there.
Allen
"John Mayo" wrote in message
news:5565716@discussion.autodesk.com...
Thanks for the confirmation Allen. Have you kept your large surfaces as one
also?
--
John Mayo
Project Engineer
Conklin Associates
Ramsey, NJ
Civil 3D 2007, LDT 2007, Raster Design 2007
P-IV at 3.5 GHz
2 GB Ram
Nvidea Quadro FX w/ 128 MB Ram
"Allen Jessup" wrote in message
news:5565703@discussion.autodesk.com...
Run in LDT or exported to LandXML? LandXML is horribly slow writing large
surfaces in my experience.
Allen
"TomD" wrote in message
news:5565478@discussion.autodesk.com...
I've run a surface of well over 1,000 acres from aerial topo. Not speedy,
but not that bad, either (that was 2006, by the way, too).
One question I should ask, first, though: Did you build the surface from
breakline/point data or from contours?
"John Mayo" wrote in message
news:5565464@discussion.autodesk.com...
If those of you who work with large surfaces could let me know at which
point you start breaking large surfaces up into components I would still
appreciate the info.
