QGIS Extract Ground Elevation: Difference between revisions

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Line 4: * Define ground elevation at 1D nodes/pits snapped to 1D channel/pipes * etc... In the example below, the "Z" attribute (ground elevation) ~~for~~of the 2d_zsh point layer in the [[~~Tutorial_Module03~~Tutorial_M11 \| TUFLOW Tutorial 0311]] is extracted from ~~the~~ DEM file. =Method= <ol> <li>Ensure that DEM and 2d_zsh line layer files are opened, and the Point Sampling Tool plugin has been ~~loaded~~installed (Plugins >> Manage and Install Plugins >> Point Sampling Tool) </li> <li>Convert line ~~vertexes~~vertices to points, using the preferred method described in the [[QGIS_Convert_Lines_to_Points \| ~~this~~QGIS ~~page~~Convert Lines to Points]] page</li> <li>Open the Point Sampling Tool</li> [[File:QGIS Extract Ground Elevation 001.png\|700px]] Line 19: <li>Open the Attribute Table of the newly created layar. Toggle editing and update "Z" attribute with "dem_m01" as shown in the image below</li> [[File:QGIS Extract Ground Elevation 002.png\|600px]]<br> ~~Now this~~This point layer is now ready to be input with the 2d_zsh line layer into the TUFLOW model. </ol>