QGIS SWMM Conduits Assign Losses: Difference between revisions

This tool populates the 'losses_Kentry', losses_Kexit', and 'losses_Kavg' fields of the input conduit layer. The 'losses_Kentry' and losses_Kexit' fields are determined by the input parameters below. The 'losses_Kavg' field is set to 0.0,; however if the field is already populated, the tool will not override the existing value.

<li>'''Input layer:''' The existing conduits layer thatto will be assignedwhich the losses fields will be assigned.

<li>'''Selected features only:''' If channel(s) in the conduits layer have been selected using the 'Select Features' tool, this option will become available. If this is checked on, the tool will only assign losses fields forto the channelsselected that have been selectedchannel(s).

:*Entrance Loss: The data to populate the 'losses_Kentry' field for the furthest upstream conduits' features. Default value is 0.5.

:*Exit loss: The data to populate the 'losses_Kexit' field for the furthest downstream conduits' features. Default value is 1.0.

:*Entrance loss: The data to populate the 'losses_Kentry' field for the other upstream conduits' features. Default value is 0.2.

:*Exit loss: The data to populate the 'losses_Kexit' field for the other downstream conduits' features. Default value is 0.4.

'''Note:''' If 'Edit Feature In-Place' is selected, the tool does not require the 'Input layer' or the 'Conduits' parameters, as the tool will override the existing conduits file with the updated attributes.

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Using the 'Edit Feature In-Place' Tooltool:

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