Revision as of 00:45, 4 January 2019 view source Tuflowduncan (talk \| contribs) Bureaucrats, Administrators 1,210 edits Created page with "<ol> =Introduction= This page describes the method for using QGIS to create the GIS based layers representing the pipe network. Two layers will be created each representing t..."		Revision as of 00:47, 4 January 2019 view source Tuflowduncan (talk \| contribs) Bureaucrats, Administrators 1,210 edits →Method Newer edit →
Line 51: *Specifying SXL for the ‘Conn_2D’ attribute automatically creates a 2D SX connection at the 2D cell within which the 1D pit is located. In addition, the ZC elevation of the cell will be lowered by the amount specified in the ‘US_Invert’ attribute (0.1m), and the upstream invert of the pit channel set to the lowered 2D cell elevation. This is useful to help trap the water into the pit as it flows overland in the 2D domain. <br> <br> <li> Open the layer '''1d_nwk_M04_channels_001_L''' ~~created in Module 4~~. Note that the pipe network has been digitised to outfall to the watercourse represented within the Flood Modeller Network. We will manually specify the downstream invert levels of Pipe16 and Pipe18 as the discharge point of the pipe network is above the bed level of the watercourse. Use the Info tool and click on each pipe in turn and change the ‘DS_Invert’ attribute for both pipes from -99,999 to 38m. <li>Save both '''1d_nwk_M07_Pipes_001_L.shp''' and '''1d_nwk_M07_Pits_001_P.shp'''. </li><br> <u>'''Pit Inlet Database'''</u>

FM Tute M02 QGIS Pipe Network: Difference between revisions