Configure Simulation Layer
Usage Instructions
The first step in flood simulation analysis is to create a simulation layer and configure simulation parameters. Before creating and configuring the simulation layer, prepare the following data (all data must use the EPSG:4490 coordinate system):
- Raster dataset (required): Used as the base terrain for simulation analysis.
- Optional data:
- Model dataset: Hydraulic structures or other buildings that affect flood flow (EPSG:4490).
- 3D surface dataset: 3D surface data specifying the flood simulation analysis area (EPSG:4490), containing only one surface.
The Configure Simulation Layer module includes the following operations: creating a simulation layer, setting the simulation area, dividing calculation units, configuring simulation parameters, simulation layer parameters, and model data source. The details are as follows:
- Create Simulation Layer: Introduces how to create a target data source for flood simulation.
- Set Simulation Area: Introduces how to draw the flood simulation analysis area.
- Divide Calculation Units: Introduces how to divide the flood simulation analysis area and calculate data such as nodes, edges, and cells.
- Configure Simulation Parameters: Introduces how to configure flood simulation parameters such as evaporation, rainfall rate, participating layers, initial water depth, infiltration parameters, Manning's roughness, and time step.
- Simulation Layer Parameters: Select the data source for flood simulation and the required datasets for water source, waterway, obstacle, water area, study area, parameter table, cells, edges, and nodes.
- Data Source Operation: Select the data source for the hydrodynamic model.
Notes:- First create or open a flood simulation data source, then configure the simulation area, calculation units, and simulation parameters.
- When configuring the simulation layer, ensure each dataset matches the target data source to avoid reading incorrect data during subsequent simulation analysis.
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