Map Suppliers List

Digital Map Suppliers

Examples of map-suppliers which may be used in connection with WAsP and the WAsP Map Editor are listed in the table below.

Description

Supplier

Map-type

Vector/
Grid

Extension

Access

OS Terrain 5 from UK Ordnance survey

UK Ordnance survey

OS Terrain 5 maps
(Shape-file)

Vector

.shp

Import in Map Editor

DXF-elevation maps from various mapping agencies

E.g. in Portugal:
IGeoE (Instituto Geográfico do Exército)

DXF

Vector

.dxf

Open in Map Editor

SRTM-derived coastline maps

US Geological Survey via

“Index of /srtm/version2_1/SWBD”

USGS Coastline maps
(Shape-file)

Vector

.shp

Import in Map Editor

Digital elevation Model in grid format

US Geological Survey

Via EarthExporer; or
MapMart

DEM

Grid

.dem

Convert by external program like Surfer

Digital elevation Model in grid format

NIMA
(US National Imaging and Mapping Agency)

DTED

Grid

.dt0
.dt1
.dt2

Convert by external program like Surfer

Gridded elevation data from Space-shuttle Radar Mission
3 arc-sec resolution, may contain voids

US Geological Survey via

“Index of
/srtm/version2_1/SRTM3”

SRTM
ver.2

Grid

*.hgt

(in ZIP-archive)

Import in Map Editor from Internet

Gridded elevation data from Space-shuttle Radar Mission
3 and 1 arc-sec resolution, no voids.

US Geological Survey via

“Index of
/SRTM/SRTMGL3.003/2000.02.11/”

And

“Index of
/SRTM/SRTMGL1.003/2000.02.11/”

SRTM
ver.3

Grid

*.hgt

(in ZIP-archive)

Convert by external program like Surfer

Maps in raster or grid format, not supported by WAsP, may be converted to vector format, e.g. by the Surfer program (by © Golden Software), see the SRTM-conversion page for details.

Third-party software and scripts

Javier Gonzalez has made an extension for ArcView 3.2 to export a polyline theme to a WAsP *.map ASCII format file, which results in smaller file sizes compared to *.dxf ASCII files. The script can also export a polygon theme to a WAsP *.obs obstacle theme.
Download from the ESRI Support Center... (483 KB).

  

Word explanation

Vector map format: Map consisting of height contour curves and boundary curves indicating a change in terrain roughness from one area to another.

Raster or grid map: A map consisting of a list of elevation values, one value for each point in a regular grid; and correspondingly the terrain roughness.