Tuflow

FM Tute M01 MI 1D2D Banks: Difference between revisions

Browse history interactively
← Older edit
Content deleted Content added
VisualWikitext
No edit summary
 
(5 intermediate revisions by 2 users not shown)
Line 5:
=Method=
<li>Import in an empty <b>2d_bc_empty.mif</b> layer from within the '''FMT_tutorial\FMT_M01\TUFLOW\model\mi\empty''' folder.</li>
<li>Save the layer as <b>2d_bc_FMT_HX_001_P2d_bc_FMT_M01_HX_001_P.TAB</b> in the '''FMT_tutorial\FMT_M01\TUFLOW\model\mi''' folder. </li>
<li>Open the <b>1D_2D_Points1D_2D_Points_P.TAB</b> GIS layer from the '''Module_Data\Module_01\mi''' folder. Select all objects from within this layer, copy and paste into <b>2d_bc_FMT_HX_001_P2d_bc_FMT_M01_HX_001_P.TAB</b>. </li>
<li>Interrogate one of the digitised points and inspect the attributes. The ‘type’ attribute is ‘ZP’ to denote that it is a z-point. The ‘f’ attribute is the elevation of the bank link in mAOD. </li>
<li>Now add the layer <b>2d_bc_FMT_M01_HX_0012d_bc_FMT_M01_HX_001_L.TAB</b> from the '''FMT_tutorial\FMT_M01\TUFLOW\model\mi''' folder created in the previous step. Note that all the 'ZP' points created in the layer <b>2d_bc_FMT_HX_001_P2d_bc_FMT_M01_HX_001_P.TAB</b> are snapped to vertices of the layer <b>2d_bc_FMT_M01_HX_0012d_bc_FMT_M01_HX_001_L.TAB</b>. This is because these two layers work together to define the bank locations and crest elevations. The layer line in <b>2d_bc_FMT_M01_HX_0012d_bc_FMT_M01_HX_001_L.TAB</b> defines the location and the layer points in <b>2d_bc_FMT_HX_001_P2d_bc_FMT_M01_HX_001_P.TAB</b> defines the elevations.
<br>
[[File:FMT 1D-2D ZP.jpg]]
Line 17:
border: 5px solid #1ABDC9">
<p style="font-weight: bold; color: #E20177">Key Tip!</p>
<p> The bank (1D/2D boundary) elevations may also be defined using a 2d_zsh layer or other 3D breakline layer. The advantage of using a 2d_bc layer is it ensures onlythe boundary cell elevations are raised and not that of adjacent cells. </p>
</div>
 
Retrieved from "https://wiki.tuflow.com/FM_Tute_M01_MI_1D2D_Banks"