FM Tute M01 QGIS 1D2D Code: Difference between revisions
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=Method=
<li>Import in an empty <b>2d_bc_empty_R.shp</b> layer from within the '''FMT_tutorial\FMT_M01\TUFLOW\model\gis\empty''' folder.</li>
<li>Save the layer as <b>
<li>Open the <b>Inactive_area.shp</b> GIS layer from '''Module_Data\Module_01\shp''' folder. Select all objects from within this layer, copy and paste into <b>
<li> For all polygons assign a 'type' attribute of 'CD'. This designates the digitised polygon as a code polygon where the 2D cells within it may be either active or inactive. </li>
<li> For all polygons assign a 'f' attribute of '-1'. A cell code of '-1' deactivates all cells within the digitised code polygons. </li>
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<li>Save the file</li>
<div style="background-color: #D6E9E0; margin: 20px; text-align: center;
border: 5px solid #1ABDC9">
<p style="font-weight: bold; color: #E20177">Key Tip!</p>
<p> Cells may also be deactivated within a model by using a cell code of '0' instead of '-1'. A value of 0 removes these cells from the computation entirely which has the benefit of reducing computation time and output file sizes. </p>
</div>
Please return to the [[Flood_Modeller_Tutorial_Module01#Modify_Simulation_Control_Files|Flood Modeller Tutorial Model]].
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