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FM Tute M01 MI x1D Nodes: Difference between revisions

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Created page with "=Introduction= This page describes the method of creating TUFLOW GIS based layers to reference the nodes within the Flood Modeller model. =Method= <li>Open the FloodModeller..."
 
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=Introduction=
ThisWe pagewill describesnow thecreate method of creatinga TUFLOW GIS based layerslayer to reference the nodes within the Flood Modeller model. The purpose of this layer is to specify the spatial location of each of the linked Flood Modeller nodes.
 
=Method=
<li> Open the <b>FloodModeller_Nodes.TAB GIS</b> layer from Module_Data\Module_01\mi folder.</li>
<li> Save as 1d_x1d_Nodes_FMT_001<b>1d_x1d_FMT_M01_nodes_001_P.TAB</b> within the FMT_tutorial\FMT_M01\TUFLOW\model\mi folder. </li>
<li>In your GIS package, openOpen the GIS layer 1d_x1d_Nodes_FMT_001<b>1d_x1d_FMT_M01_nodes_001_P.TAB</b> within MapInfo.</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>
 
<li>Note that at junctions, both the upstream and downstream nodes will need to be digitised within this layer. </li>
 
<li>Export to .mif format in preparation for reading into TUFLOW.</li>
[[File:FMT_QGISx1D_Nodes_MI.PNG|600px]]
 
 
<li> Save and export the file to MID/MIF format.
 
<div style="background-color: #D6E9E0; width: 90%; 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>
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You have now created the GIS layer 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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