QGIS Extract CrossSections: Difference between revisions
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<li>Draw your cross sections using the TUFLOW 1d_xs file, be sure to fill in the source column.</li>
<li>Install the QGIS plug-in "profile from line" (note you may also need to install shapely - see <u>[https://shapely.readthedocs.io/en/stable/installation.html https://shapely.readthedocs.io/en/stable/installation.html]</u>).</li>
<li>Run the plugin, it is pretty self explanatory, select your cross sections and dem, choose a suitable sampling interval. </li>
<li> Upon running the plugin, QGIS will add a new points file to the workspace, save this as a .csv. This file will contain the source of every cross section as well as the corresponding chainages and elevations.</li>
<li>To split this data into individual .csv files in a format that TUFLOW can read in, download <u>[[File: XSExtractor.xls]]</u></li>
<li>Follow the instructions in the spreadsheet, after exporting to individual worksheets use the excel TUFLOW utilities "Export Entire Workbook to csv" to obtain all the cross sections in a TUFLOW format. The TUFLOW excel utilities can be downloaded from the <u>[http://www.tuflow.com/ProductDownload.aspx
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Done!
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