DEM ,NDVI and rivers
combined to a view of Europe in July 1993
Overview:
Mapper is a visualization tool I wrote to
play with GIS data I find on the internet. It can combine data from different
sources and in varying formats to a single view. It is not an image processing
tool but rather builds a 3dimensional model of the earth.
To do something useful with it you must
first get some huge files that are freely available on the internet.
Sources for such data are listed on the Download Planet Earth page
or can be accessed directly from Mapper.
Current features:
load & display USGS 30 arc sec. digital
elevation models (*.bil and *.dem files)
load & display USGS AVHRR advanced
high resolution radiometry data (NDVI, visible light, thermo bands)
load & display CIA World Database II
vector maps (*.cbd files)
convert NIMA GEOnet web-queries (populated
places and geographic features) to flat binary file and display names on
the map
render a shaded view from DEM data
convert data in Goodes interrupted homolosine
map projection to cartesian (latitude/longitude) projection
merge AVHRR & DEM data to obtain
a realistic, colored view
Web GIS database to access internet
sources for GIS data directly from Mapper
convert data into an octree, which can carry
earth data of any type at a virtually indefinite resolution (down to aprox.
1 mm, I guess) currently not used
zoom in/out
create 3 dimensional isometric views
display elevation, vegetation and other location
properties at mouseclick
measure (true) distance and azimuth
Requirements:
Windows 95 or Windows NT 4.0
High Color or TrueColor SVGA mandatory Pentium or better CPU
Availability:
Download
the current version of Mapper (v0.5a), 2011 KB
Use of the program is FREE. Copyright remains
with the author.
No sample data included.
WARNING: This is an experimental
application to toy around with GIS data. This version of Mapper does not
always check for correct file format or available memory. It can crash
your system.
Use at your own risk.
Installation:
Unzip all files into a temporary directory
and run Setup.
Please e-mail
me for feedback and questions regarding Mapper.
