QGIS Calculating Volumes

In this video we calculate the excavation volumes for pile foundations. Q-Tips - https://q-tips.co.za QGIS - https://qgis.org timestamps 0:00 Start 1:04 Setting up the project folders 1:50 Project review 2:50 Edit the CSV 3:40 Adding a CSV to a QGIS project 5:20 Buffering the building corners 6:52 Using the Union function to join the buffers 7:25 Converting polygons to lines 8:13 Converting features from multipart to singlepart 8:52 Removing old layers from the project 9:54 Save the project 10:00 Assigning elevation values in the attribute table 11:17 Digitizing the surface extent 12:15 Making a temporary layer permanent 13:16 Discussing the methodology for the volume calculation 15:18 Activating the processing toolbox plugin 15:40 Create a surface DEM through TIN interpolation 18:20 Determining the equation for the raster calculator expression 20:36 Introducing the Raster Calculator 22:54 Lines to polygon - Creating an overlay polygon 23:50 Calculating the volume using Zonal Statistics 25:16 Calculating the volume with an algorithm