QGIS Create a TIN: Difference between revisions
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[[File: QGIS_Create_TIN_IDW_Interpolation_02.png]]<br>
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==Extract Elevation of Breakline Vertices From IDW Interpolation==
Extract elevation at breakline vertices from '''Interpolated''' using the QGIS processing tool 'Drape (set Z value from raster)'. For more information about this tool, please refer to <u>[https://docs.qgis.org/3.34/en/docs/user_manual/processing_algs/qgis/vectorgeometry.html#drape-set-z-value-from-raster QGIS Documentation - Drape]</u>.
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<li>Go to 'Vector geometry' in the processing tool list and select 'Drape (set Z value from raster)'. This opens the dialog shown below:
*Input layer: Select the breaklines layer (e.g. '''2d_zsh_M02_landscape_002_L''').
*Raster layer: '''Interpolated'''
<li>Leave all other options as default and ensure 'Open output file after running algorithm' is ticked on.
<li>Click 'Run'. Once the tool is finished, click 'Close'. <br>
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[[File: QGIS_Create_TIN_Drape_Lines_01.png]]<br>
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<li>The resulting layer, called '''Draped''' will appear in the QGIS Layers panel. Right click '''Draped''' and select 'Rename Layer'. Rename the layer to '''Draped_Lines'''.
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