|
|
| GeoCommunity Mailing List |
| |
| Mailing List Archives |
| Subject: | RE: GISList: visualisation |
| Date: |
12/11/2002 06:08:27 PM |
| From: |
Graeme Brooke |
|
|
The inherent problem with real-time visualisation of geographic data is that
the graphics card will NEVER be able to handle what you try to throw at it,
at, say, 30 frames per second.
To do this properly you need to have a tool to convert your data into a
visualisation-specific format such as OpenFlight (.FLT) or Tiled Scene Graph
(.TSG). These formats rearrange the priorities to allow visualisation rather
than analytical aspects to come to the fore.
The software tools that write these formats are not free, or even cheap.
Ciao,
Graeme
________________________________________________________________
GRAEME BROOKE E-mail:gmb@vizmap.com.au
Batphone: +61(0)4 1965 9866 Phone/Fax: +61(0)7 5444 0011
PO Box 453, Mooloolaba, Queensland 4557, Australia
Speaking Professionally... http://www.vizmap.com.au
Speaking Personally... http://www.grime.net
________________________________________________________________
Quote 2663 of 3423:
Please, won't somebody tell me what diddie-wa-diddie means?
________________________________________________________________
-----Original Message-----
From: John Lee [mailto:jlee@brookes.ac.uk]
Sent: Thursday, 12 December 2002 1:26 AM
To: Gislist
Subject: GISList: visualisation
Dear all,
I would like some advice please.
I want to visualise some 3D terrain models. This is likely to include some
rotation, zooming in, development of fly-throughs and later, addition of
textures to make the scenes more 'life-like'. I have built the DEM from UK
Ordnance Survey (the UK's national mapping organisation) data and I have
draped raster files over the top (several big TIF files).
Currently I am using ArcScene to enable my visualisation, but there seem to
be limits to the program. Part of the problem is that my graphics card is
unable to cope with the data volumes, but the process of developing
fly-throughs seems to be quite long-winded (export of individual scenes to
another software package etc.) and adding textures is, as far as know,
impossible.
I am limited to using ArcGIS for our GIS processing, but we have some money
available to buy visualisation software. Does anybody have any thoughts,
experiences, comments on visulisation software of GIS data.
Many thanks in advance
John
*****************************************
Dr. John Lee
Postdoctoral Researcher in Bioinformatics
GIS & Habitats Research Group
School of Biological and Molecular Sciences
Oxford Brookes University
Headington Campus
Gipsy Lane
Oxford
OX3 0BP
United Kingdom
Tel. (+44)(0)1865 483269
Fax. (+44)(0)1865 483242
Email. jlee@brookes.ac.uk
*****************************************
To unsubscribe, write to gislist-unsubscribe@geocomm.com
________________________________________________________________________
GeoCommunity GeoBids - less than $1 per day!
Get Access to the latest GIS & Geospatial Industry RFPs and bids
http://www.geobids.com
Setup a GeoCommunity Account and have access to
the GISDataDepot DRG & DOQQ Catalog
http://www.geocomm.com/login.php
To unsubscribe, write to gislist-unsubscribe@geocomm.com
________________________________________________________________________
GeoCommunity GeoBids - less than $1 per day!
Get Access to the latest GIS & Geospatial Industry RFPs and bids
http://www.geobids.com
Setup a GeoCommunity Account and have access to
the GISDataDepot DRG & DOQQ Catalog
http://www.geocomm.com/login.php
|
|
Sponsored by:
For information
regarding
advertising rates
Click Here!
|
