View source for View Results in ArcGIS Archive

<ol>
==Introduction==
In this section we will look at post-processing the TUFLOW results so they can be imported and viewed in ArcGIS. We will load 3D surfaces (as gridded datasets) as well as point and vector data (as region objects).

==Rasters==
<ol>
<li>If it is not already open, start ArcMap and load the aerial photo ('''Module_Data\Aerials\ArcGIS\''').</li>
<li>Firstly we will open the gridded (raster) datasets, to do this select ''Add Data''. Navigate to the '''TUFLOW\Results\M01\2d\grids\''' folder and select the '''M01_5m_002_d_Max.flt''' file.  You can also drag and drop the .flt file from Windows Explorer onto the Arc Map window to open. The '''_d''' in the filename indicates that this is a depth results, the '''_Max''' indicates the maximum depth.  The '''M01_5m_002_d_001_55.flt''' is the depth at 1hr : 55 minutes.</li>
The map window should now show the grids over the aerial photo, as per the image below.
[[File:Tute M01 Arc results 01.png|frame|none]]
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<li>Depending on the verion of ArcMap used, the results are showing up as grey or as a greyscale range. We will give these a colour shading to make the results more meaningful.  We will use the '''M01_5m_002_d_Max''' to demonstrate how this is done. Turn of the other results layer so that only the '''M01_5m_002_d_Max''' and '''Aerial_Photo_M01''' are visible.</li>
<li>Right click on the '''M01_5m_002_d_g002.50_Max''' layer and select properties.</li>
<li>In the symbology tab, set an appropriate colour-ramp and change the stretch type to "Minimum-Maximum". </li>
[[File:Tute M01 Arc results 02.png|frame|none]]
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When applied the results should now be shaded with low depths shown in light blue and deeper water as a dark blue, as per the image below.
[[File:Tute M01 Arc results 03.png|frame|none]]
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<li>We will now look at the water level results, these have the output name '''_h'''. Add the '''M01_5m_002_h_Max.flt''' results.  Following a similar process as above, enter the properties, in the symbology select the ''Classified'' option. In the ''Classify'' dialogue you can set the contour increments.</li>
[[File:Tute M01 Arc results 04.png|frame|none]]
</ol>

==Vectors==
===TUFLOW to GIS===
In order to bring the vector data into ArcGIS as arrows, it is necessary to utilise a TUFLOW utility called '''TUFLOW_to_GIS.exe''' this utility can be downloaded from the TUFLOW website [http://www.tuflow.com/ProductDownload.aspx (TUFLOW Downloads)].

There is separate wiki page on how to use the TUFLOW_to_GIS utility.  This page can be found here [[TUFLOW_to_GIS|TUFLOW to GIS]].
<ol>
<li> Download the TUFLOW_to_GIS utility and unzip.  Take note of where this utility is located.</li>
<li> Create an empty text file in the '''TUFLOW\results\M01\2d\''' directory and name the file '''Process_Results.bat'''</li>
<li> Open the text file in a text editor</li>
<li> Add the following lines to the '''Process_Results.bat'''  (these can be copied and pasted from below) and then save the batch file:<br>
<tt><font color="grey">REM Any text following "REM" is treated as a remark or comment.<br>
REM Process the velocity vectors at times 1, 2 and 3 hours.</font><br>
C:\TUFLOW\Utilities\TUFLOW_to_GIS.exe -b -shp -vector -t1 M01_5m_002_V.dat<br>
C:\TUFLOW\Utilities\TUFLOW_to_GIS.exe -b -shp -vector -t2 M01_5m_002_V.dat<br>
C:\TUFLOW\Utilities\TUFLOW_to_GIS.exe -b -shp -vector -t3 M01_5m_002_V.dat<br>
Pause <font color="grey">REM this keeps the Command Window open after processing</font></tt></li>
'' Update the path to TUFLOW_to_GIS.exe if necessary.''
<li>In Windows Explorer navigate to the '''TUFLOW\results\M01\2d\''' directory and double click on the newly created batch file '''Process_Results.bat'''.</li>

A console window should appear and the batch file may process for a minute or so. When finished the output screen should look like screen image below:<br>

[[File:T2G M01 FinishedArc.png|frame|none]]
</ol>
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=Viewing in ArcMap=


==Vector Results==
<ol>
<li>The vector outputs from the TUFLOW_to_GIS conversion can be directly loaded into ArcMap.</li>
<li>Select the three velocity vector results, from the '''TUFLOW\results\M01\2d\''' directory.
*M01_5m_002_V____1.00(v)_R
*M01_5m_002_V____2.00(v)_R
*M01_5m_002_V____3.00(v)_R</li>
<li>Turn all layers off except the aerial photo, '''M01_5m_002_d_g002.50____1.00''' (the depth at time 1 hour) and the '''M01_5m_002_V____1.00(v)_R''' (velocity vector at time 1 hour).</li>
<li>Colour the depth grid, using the method above.<br>
[[File:Tute M01 Arc results 05.png|frame|none]]
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<li>Repeat the process above to view the results at 2 and 3 hours into the simulation.</li>
</ol>
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For those progressing through the Tutorial Module 1, you can return to the tutorial module [[Tutorial_Module01_Archive#Viewing_Results_2 | here]].