Tute M14 QGIS 2d bc pump Archive - Revision history

Emilie Nielsen at 00:08, 23 September 2024

2024-09-23T00:08:44Z

← Older revision		Revision as of 10:08, 23 September 2024
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	<br>		<br>
	[[File:M14 pump QGIS.png\|600px]]		[[File:M14 pump QGIS.png\|600px]]
	<li>The pump requires only two attributes to be entered. Right-click on the '''2d_bc_M14_pump_001_P''' layer and select 'Open Attribute Table'. The attribute table shows all attributes currently associated with the pump object. Double-click on the ''Type'' attribute and change the type to '''SH'''. Using the same method change the object ''Name'' to '''pump'''. For a description of each of these attributes, refer to ~~Table~~ 4.~~33 in the 2010~~ TUFLOW ~~manual~~.		<li>The pump requires only two attributes to be entered. Right-click on the '''2d_bc_M14_pump_001_P''' layer and select 'Open Attribute Table'. The attribute table shows all attributes currently associated with the pump object. Double-click on the ''Type'' attribute and change the type to '''SH'''. Using the same method change the object ''Name'' to '''pump'''. For a description of each of these attributes, refer to the <u>[https://docs.tuflow.com/classic-hpc/manual/latest/ TUFLOW Manual]</u>.
	The ''Type'' attribute tells TUFLOW what type of 2d boundary is being created, while the ''Name'' provides a link to the relevant boundary condition data to be read from the boundary condition database.</li>		The ''Type'' attribute tells TUFLOW what type of 2d boundary is being created, while the ''Name'' provides a link to the relevant boundary condition data to be read from the boundary condition database.</li>
	<li> We now need to specify where we want the flow removed from the creek to be transferred to. To do this a connection feature is required.		<li> We now need to specify where we want the flow removed from the creek to be transferred to. To do this a connection feature is required.

Emilie Nielsen: /* Conclusion */

2024-04-05T03:36:43Z

Conclusion

← Older revision		Revision as of 13:36, 5 April 2024
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	The '''2d_bc_M14_pump_001_P''' and '''2d_bc_M14_pump_001_L''' layers are ready for input to the TUFLOW model. The next step is to link the pump with a boundary condition entry in the boundary condition database (bc_dbase).<br>		The '''2d_bc_M14_pump_001_P''' and '''2d_bc_M14_pump_001_L''' layers are ready for input to the TUFLOW model. The next step is to link the pump with a boundary condition entry in the boundary condition database (bc_dbase).<br>
	<br>		<br>
	When ready you may return to [[Tutorial_Module14_Archive#~~Modify Model Control Files and Boundary Condition Database~~ \| Module 14 Modify Control Files and Boundary Condition Database]].<br>		When ready you may return to [[Tutorial_Module14_Archive#Modify_Simulation_Control_Files_and_Boundary_Condition_Database \| Module 14 Modify Simulation Control Files and Boundary Condition Database]].<br>

ElizaCollison: Created page with " ==Introduction== This page details the method for using QGIS to create the additional required GIS boundary layer. The process of editing and saving GIS layers using QGIS is..."

2023-01-09T01:41:35Z

Created page with " ==Introduction== This page details the method for using QGIS to create the additional required GIS boundary layer. The process of editing and saving GIS layers using QGIS is..."

New page

==Introduction==
This page details the method for using QGIS to create the additional required GIS boundary layer. The process of editing and saving GIS layers using QGIS is the same as that described in Module 1. If you are not familiar with how to do this, please review the detailed method described for [[Tute_M01_Boundaries_QGIS_Archive | Module 1]].

==Method==
We need to create the 2d_bc layer to contain the pump, which takes the flow from a 2D cell and transfers the water to a separate 2d cell.
<ol>
<li>In QGIS open the DEM layer used in previous modules.</li>
<li>Open the '''Pump.shp''' layer provided in the '''Module_Data\Module_14\QGIS\''' folder.</li>
In this module a pump will be added along the creek together with a connecting line to the shallow reservoir located to the west. 
<li>Open the '''2d_bc_empty_P.shp''' template file from the '''TUFLOW\Model\gis\empty\''' folder. Save this template layer as '''2d_bc_M14_pump_001_P.shp''' in the '''TUFLOW\Model\gis''' folder.</li>
<li>Check the 'add saved file to map' box when saving the new layer or alternatively load the new layer to the current view. Toggle editing for the new layer. The template file may now be closed.</li>
<li>Using the Select Single Feature tool, select the pump object contained in the Pump layer. Copy the pump object using ''Edit >> Copy Feature'' or ''Ctrl+C'', select the '''2d_bc_M14_pump_P''' layer in the layer control, toggle editing on and then select ''Edit >> Paste'' or ''Ctrl+V''.
The location of the pump is shown below, with the reservoir to the west.</li>
 
[[File:M14 pump QGIS.png|600px]]
<li>The pump requires only two attributes to be entered. Right-click on the '''2d_bc_M14_pump_001_P''' layer and select 'Open Attribute Table'. The attribute table shows all attributes currently associated with the pump object. Double-click on the ''Type'' attribute and change the type to '''SH'''. Using the same method change the object ''Name'' to '''pump'''. For a description of each of these attributes, refer to Table 4.33 in the 2010 TUFLOW manual.
The ''Type'' attribute tells TUFLOW what type of 2d boundary is being created, while the ''Name'' provides a link to the relevant boundary condition data to be read from the boundary condition database.</li>
<li> We now need to specify where we want the flow removed from the creek to be transferred to. To do this a connection feature is required.
<li>Open the '''2d_bc_empty_L.shp''' template file from the '''TUFLOW\Model\gis\empty\''' folder. Save this template layer as '''2d_bc_M14_pump_001_L.shp''' in the '''TUFLOW\Model\gis''' folder.</li>
<li>Check the 'add saved file to map' box when saving the new layer or alternatively load the new layer to the current view. Toggle editing for the new layer. The template file may now be closed.</li>
<li>Before we begin modifying the new 2d_bc layer we need to enable snapping to the 2d_bc pump object. Enable snapping for this layer in the ''Settings >> Snapping Options...'' menu. Select the check box next to the '''2d_bc_M14_pump_001_P''' layer. Set the tolerance to 5 map units (5 metres) and select 'Apply'.</li>
<li>Select the '''2d_bc_M14_pump_001_L''' layer and toggle editing on. Using the Add Feature tool, digitise a line object, snapping to the pump object and ending at the location where the flow is to be transferred to, as shown below. Right-click on the map window to complete the line. </li>
 
[[File:M14 pump SC connection_QGIS.png|600px]]
<li>With the line complete, an attributes window will be displayed. Enter the line ''Type'' as '''SC'''. Make all other attributes blank by removing any null entries.</li>
<li>Save edits to the '''2d_bc_M14_pump_001_L''' layer to finish.
</ol>
==Conclusion==
The '''2d_bc_M14_pump_001_P''' and '''2d_bc_M14_pump_001_L''' layers are ready for input to the TUFLOW model. The next step is to link the pump with a boundary condition entry in the boundary condition database (bc_dbase). 
 
When ready you may return to [[Tutorial_Module14_Archive#Modify Model Control Files and Boundary Condition Database | Module 14 Modify Control Files and Boundary Condition Database]].