Extracting elevation

00:03

When you import a model and make manual fixes and adjustments,

00:07

junctions may not have elevation data.

00:10

The info water pro elevation extractor can be used

00:13

to populate junction elevations using the raster elevation data set

00:18

to begin

00:19

double click the desired project dot APR file to open

00:23

Agis pro.

00:25

Once the project starts,

00:26

click the info water pro tab to open the info water pro ribbon

00:31

in the project panel, click initialize

00:35

from the arc

00:36

GS pro toolbar in the layer panel. Click add data

00:42

in the add data,

00:43

dialogue browse two and double click the desired dot GDB file to

00:47

expand it such as city data dot GDB for this exercise.

00:52

Then select the raster dataset you need in this case elevation

00:56

and then click OK

00:59

on the info water pro ribbon in the edit panel, click DB editor,

01:04

the DB editor opens showing the opentable junction demand modeling data dialogue

01:11

in the data table. Tab expand the element information data folder,

01:16

double click junction information.

01:18

Now the junction information table populates the DB editor

01:22

notice that the elevation column is empty.

01:25

Close the DB editor,

01:28

you can use the elevation extractor to populate the elevation information

01:32

but be aware that this tool only accepts raster files

01:35

from the command center tab in the model explorer, expand the tools folder,

01:40

then double click elevation extractor

01:44

in the elevation extractor dialogue, set the source layer to elevation

01:48

and then click extract.

01:51

If you do not see elevation listed here as a layer,

01:54

then the elevation data is likely in another file type.

01:58

The elevation extractor takes the value

01:60

of the pixel corresponding to each junction

02:02

and assigns it in the elevation field of

02:05

the info water pro information database table.

02:08

When you see a confirmation in the message

02:10

board that the elevation data extraction is finished,

02:13

you can close the extractor

02:16

reopen the database editor by selecting DB editor element information, data

02:21

junction information.

02:23

And you can see that elevation data is now contained in the database table.