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FM Tute M01 ARC x1D Nodes: Difference between revisions

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=Introduction=
We will now create a TUFLOW GIS layerslayer to reference the nodes within the Flood Modeller model. <br>The purpose of this layer is to specify the spatial location of each of the linked Flood Modeller nodes.
These node layers are the primary way that TUFLOW references the Flood Modeller sections.
 
=Method=
<li> Open the FloodModeller_Nodes<b>FloodModeller_Nodes_P. GISshp</b> layer from <b>Module_Data\Module_01\shpgis folder</b>.</li>
<li> Save as <b>1d_x1d_FMT_M01_nodes_001_P.shp</b> within the FMT_tutorial\FMT_M01\TUFLOW\model\gis folder. </li>
<li> Open the GIS layer 1d_x1d_FMT_M01_nodes_001_P<b>1d_x1d_FMT_M01_nodes_001_p.shp</b> within ArcGISQGIS.</li>
<li> Interrogate one of the digitised points and inspect the attributes. NoteThis thatlayer each pointonly has a uniquesingle nameattribute which correlatescorrelating to the unique name of a RIVER, INTERPOLATE or REPLICATE unit within the Flood Modeller model. Note that the node IDs are case-sensitive as this is a requirement of Flood Modeller. At junctions, both the upstream and downstream nodes must be digitised within this layer.</li>
 
 
[[File:FMT_QGISx1D_Nodes.JPG|600px]]
 
 
 
<li> Save the file.
 
<div style="background-color: #D6E9E0; width: 5090%; margin: 20px; auto; text-align: center;
border: 5px solid #1ABDC9">
<p style="font-weight: bold; color: #E20177">Key Tip!</p>
<p> For real-world models, this GIS layer may be largely automated provided the original Flood Modeller model is geo-referenced. Within Flood Modeller it is possible to output a text file containing each of the model nodes along with their Eastings and Northings. This text file can then be brought into any GIS package and used to create the points within the GIS layer to be used by TUFLOW.</p>
<p> The node IDs are case-sensitive as this is a requirement of Flood
Modeller.</p>
</div>
 
 
You have now created the linksGIS tolayer representing the Flood Modeller nodes for reading into TUFLOW. Return to the [[Flood_Modeller_Tutorial_Module01#Define_the_1D.2F2D_Boundary_Links|Flood Modeller Tutorial Model]].
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