kklooki.blogg.se - Tutoriel quantum gis

Tutoriel quantum gis manual#
Tutoriel quantum gis series#

The 1D model extents both upstream and downstream of the 2D active domain: Use the 'Identify Features' tool to inspect the attributes of the three 1d_nwk types:.

Tutoriel quantum gis manual#

See Table 5-1 of the 2018 TUFLOW Manual for more information on the 1d_nwk types.

X - connecting channel used for side channels entering the main channel.

Load the 1d_nwk_M11_channels_001_L.shp from the Module_11\TUFLOW\model\gis folder into QGIS and use the 'Apply TUFLOW Styles to Open Layers'.

It contains information on inverts and to obtain data from the cross section the 1d_nwk and 1d_xs must be snapped: Select a 1d_xs line and view the cross section:Ī 1d_nwk layer is used to model open channels.

Tutoriel quantum gis series#

Open the TUFLOW Viewer, the 1d_xs file automatically appears with a time series result 'XZ' showing.Type attribute 'XZ' specifies distance vs elevation cross section: Each line has a unique name in the 'Source' attribute field that links to a cross section csv contained within the xs folder. Use the 'Identify Features' tool to inspect a cross section line.This method can be used where cross section data is available but topography data is not. The cross sections extend further than the 2d_code layer and DEM, here the model transitions from a 1D/2D model to a 1D only model.

Load the 1d_xs_M11_channels_001_L.shp from the Module_11\TUFLOW\model\xs folder into QGIS and use the 'Apply TUFLOW Styles to Open Layers'.

For each cross section there is an individual comma separated csv file:

Copy and save all the below layers into the Module_11\TUFLOW\model\gis folder:Ī 1D open channel requires cross sections for processing of the channel geometry.

Copy and save the xs folder into the Module_11\TUFLOW\model folder.

Navigate to the Module_11\Tutorial_Data folder:

Set the workspace projection to EPSG:32760, see Set the Projection.

Click 'OK' and save the workspace by selecting Project > Save As.

Note: The 'results' and 'check' folder get automatically created when the TUFLOW model is run. This is the only change required, the model folder structure and template empty files are supplied from previous model.

Change the folder which contains TUFLOW to the Module_11 folder.

Go to Plugins > TUFLOW > Editing > Configure / Create TUFLOW Project.Re-configure the TUFLOW project to use and save empty files to the correct folder: QGIS is used to create, import and view input data.