difference from the usual modus operandi is that when
the command, no new window opens.
The tool content opens geoprocessor window, and
stay displayed as long as you do
not decide otherwise by performing an
with the geoprocessor.
On top of the window, you can find two available
tabs for the tool : Parameters and Environments ,
which work as usual
Once the features are filled in, you can run
tool by clicking Run, located at the right bottom of the geoprocessor
result ( terre_mer ) is added to the current view.
Now we will create a new “Zone”
field that we are going to give information to ” land
” or ” sea “. And we will benefit
by looking how the work is performed on the attribute table in
As in ArcMap, you open
the attribute table by right clicking on the layer
the legend window and selecting “Attribute
new window opens at the centre below the
create a new
field, you will use the first button on
the table button bar.
on the button, the parameterss for the definition of the new field appear
the geoprocessor window. In fact , in ArcGis Pro, all
the “flying” windows of ArcMap are now
back to the geoprocessor window .
the field is defined , as usually , by clicking
on the field name in the attribute table , you get
“Calculate field” option . The features will
, again, open in the geoprocessor window.
We fill all records with
“earth” and select the polygon
to the sea and run the calculation again with ” sea ” as
. As in ArcMap, the field
calculator works only on the recordings
, if any.
DTM for the
To generate the marine DEM ,
we will add the
layer ( corrected from hydro zero as indicated in
article 3D – Functional surfaces –
Specific case of the littoral ( earth –sea interface ) )
order to create the DTM we will use the command Topo to 3D
the geoprocessor window, click Toolboxes and search the command.
geoprocessor window, click Environments. This will
let you define the output extent equal to
the extent of the Emprise layer .
Also, we define the output size, in our
75m since it is the cell size of the terrestrial raster .
We execute the command and obtain the following DEM :
Before continuing the creation of the land-sea DEM ,
which we will see in the next article, we will
for a moment to see what we just did but
time in 3D.
3D view with the generated DEM
Click the Scene tab. If you had not already done
so, remove the Topographic layer.
You get an empty
you load the image Aerial
the 3D view you get the following:
Unlike what you can think
at first glance , the image is 3D
and draped on a DTM provided by ArcGis Pro by default.
realize the previous it is enough to increase the
hype vertical sight.
Click on “Scene” in
the legend bar -> Properties -> Elevation surface and change the value by 10, for
you will see your image in an exaggerated 3D.
Note that the “sea” section of the image
flat at level 0 meter .
Let’s change the MNT by default
for the MNT that we have just created.
that end you will use the ribbon, MAP tab
button Add Preset -> Ground
in the DTM file we have created in the first part of the
default DEM is
by the new DTM and the view changes immediately :
Now you can see
opposite of the previous sight: the relief is limited to the marine section,
the ground isflat
at level 0.
To manage the different DEMs of a view,
you have to use: “Scene” in the caption bar -> Properties ->
on “Ground” you will get the list of loaded
DEMs. You have the up and down arrows to
decide which DTM is taken in
. As for the layers display, in the legend window it is
the one placed highest on the list which is in use.
In the next article we will discuss, how to complete
DTM with the terrestrial section.
Thank you for this