This tool is a first development of analysis on the specification of OGC, "Web Coverage Service ", that it defines how to accede to all the attributes associated to a cover (raster image, digital model,…). This utility offers the possibility to us of consulting the digital model 1:200.000 and 1:25.000 and of obtaining:

• The highest, the lowest and the average altitude of the visible zone.
• The altitude of any point of the land on which the cursor is placed.

Warning: In order to be able to consult the altitudes it is necessary, that the visualization scale is greater to 1:100.000.

Application Guidelines

 

Start the analysis

IDEE WCS request examples

• MDT25 pixel altitude calculation for a 25 x 25 meter area (minimal surface size for any information request):

http://www.idee.es/wcs/IDEE-WCS-UTM30N/wcsServlet?
SERVICE=WCS&
REQUEST=GetCoverage&
VERSION=1.0.0&
CRS=EPSG:23030&
BBOX=470000,4130300,470025,4130325&
COVERAGE=MDT25_peninsula_ZIP&
RESX=25&
RESY=25&
FORMAT=AsciiGrid&
EXCEPTIONS=XML

The following result is obtained:

ncols                            1
nrows                           1
xllcorner                       470000.0
yllcorner                       4130300.0
cellsize                         25.0
NODATA_value          -999.0
1191.0(this is the altitude value for the area)

• Alitude calculation for an MDT25 area:

 http://www.idee.es/wcs/IDEE-WCS-UTM30N/wcsServlet?
SERVICE=WCS&
REQUEST=GetCoverage&
VERSION=1.0.0&
CRS=EPSG:23030&
BBOX=470000,4130300,470200,4130500&
COVERAGE=MDT25_peninsula_ZIP&
RESX=25&
RESY=25&
FORMAT=AsciiGrid&
EXCEPTIONS=XML

The following result is obtained:

ncols                                8
nrows                               8
xllcorner                   470000.0
yllcorner                 4130300.0
cellsize                          25.0
NODATA_value         -999.0
1208.0 1213.0 1220.0 1227.0 1231.0 1231.0 1230.0 1230.0  (altitude values )
1206.0 1211.0 1220.0 1227.0 1231.0 1231.0 1230.0 1229.0
1203.0 1210.0 1218.0 1225.0 1229.0 1231.0 1230.0 1229.0
1200.0 1208.0 1214.0 1222.0 1226.0 1229.0 1229.0 1227.0
1202.0 1209.0 1212.0 1218.0 1223.0 1227.0 1227.0 1226.0
1202.0 1209.0 1208.0 1214.0 1221.0 1224.0 1224.0 1224.0
1201.0 1201.0 1199.0 1210.0 1216.0 1221.0 1222.0 1222.0
1191.0 1191.0 1200.0 1205.0 1213.0 1219.0 1221.0 1221.0