QGIS Create a TIN: Difference between revisions
Content deleted Content added
| (One intermediate revision by the same user not shown) | |||
Line 1:
=Introduction=
TUFLOW offers powerful tools for modifying a model's geometry, including generating Triangulated Irregular Networks (TINs) from input data. Alternatively, as outlined on this page, users can create TINs in QGIS before importing them into TUFLOW. The advantage of this approach is that it allows the user to visualise and review the TINs before they are included in the model.
:'''Note:''' The QGIS TUFLOW Plugin tool <u>[[QGIS_TIN_Polygons_Assign_Elevations|TIN Polygons - Assign Elevations]]</u> can also be used to assign elevations to a TIN polygon, using a raster.<br>
To demonstrate the workflow, the DEM and GIS files from <u>[[Tutorial_M02#Part_2_-_Other_Topographic_Updates|Tutorial Module 2 (part 2)]]</u> are used as examples. The tutorial dataset can be downloaded from the <u>[[Tutorial_Introduction|Tutorial Model Introduction]]</u>. The instructions below refer to the GeoPackage format, but Shapefile format is also supported.
Line 105 ⟶ 106:
*Output format: 2DM
*Output coordinate system: Use the project CRS.
*Output file: Save to the model's '''grid''' folder ('''TUFLOW\model\grid''').
<li>Click 'Run'. Once the tool is finished, click 'Close'. <br>
<br>
| |||