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#!N
#!CSeaGreen #!N #!Rall34 A simple two-dimensional field #!N #!EC #!N
#!N In this first example, we will import a two-dimensional field
on a regular grid. The data describe the topography (elevation) of
the southeastern United States. First start Data Explorer by typing #!CForestGreen
#!N #!N #!F-adobe-courier-bold-r-normal--18* #!N dx -edit #!EF #!N #!N #!EC or
choose #!F-adobe-times-bold-r-normal--18* New Visual Program #!EF from the Data Explorer Startup
window. #!N #!N From the Import and Export Category in the
top left palette, choose the Import module. Place it on the
large blank canvas area. #!N #!N From the Realization Category choose
the RubberSheet module. Place it below the Import module. From the
Rendering Category choose the Image module. Place it below the RubberSheet
module. #!N #!N Now connect the output of Import to the
first input of RubberSheet, and connect the output of Rubbersheet to
the input of Image. Notice that the first tab of Import
is colored differently than any other tabs visible. This is because
this parameter is #!F-adobe-times-medium-i-normal--18* required #!EF . This is the file
name of the data file to import. #!N #!N Open the
configuration dialog box for Import. Specify the first parameter (name) as
/usr/lpp/dx/samples/data/southeastern_topo.dx. #!N #!N Execute the visual program by selecting #!F-adobe-times-bold-r-normal--18* Execute
Once #!EF from the #!F-adobe-times-bold-r-normal--18* Execute #!EF menu. You should see
an image showing the topography as a deformed surface. #!N #!N
To add colors, insert an AutoColor module (Transformation Category) between RubberSheet
and Image (or between Import and RubberSheet). #!N #!N #!N #!F-adobe-times-medium-i-normal--18*
Next Topic #!EF #!N #!N #!Lall35,dxall36 h A simple three-dimensional field #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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