GeoSWMM 2D Tools
GeoSWMM 2D modeling tools enable the user to create and assign attributes for 2D features in a GeoSWMM project. These tools will assist users to define a boundary layer within which the 2D model objects will be created with defined hydrologic parameters, create all the associated nodes, links to generate the 2D mesh, connect the 2D features with the 1D features through different connection options and generate flood extent rasters. Each tool requires pre-requisite layer(s) to process and generate next level of layer(s). User need to follow the hierarchical process that is established within these tools to generate the subsequent output layer(s).
Table 20: Pre-requisite and Output layers for 2D Modeling Tools
2D Modeling Tools | Pre requisite layer(s) | Output layer | Output layer geometry type |
Define Boundary Layer | No layer is required | polygon | |
Create 2D Nodes | Boundary Layer | Nodes 2D | Point |
Create 2D Layers | Nodes 2D | Junctions 2D | Point |
Conduits 2D | polyline | ||
Cells 2D | polygon | ||
Connect 1D-2D | Junction 2D | Orifices 2D/Weirs 2D | polyline |