Before creating a 2D mesh, you’ll have to have some kind of ground information within your model, or which can be accessed to create your mesh. If ground levels are too far apart, your model won’t be very accurate. If you have too many points, your model will take a while to run.
In this exercise we will create a simple mesh.
- Select the New Polygon Button within ICM top menu.
- Create a polygon around the area you wish to carry out 2D modelling on.
- Upon completing your polygon a prompt box will appear. Name your mesh and select Type: 2d Zone
On the left hand side of your mapper you will see the parameters of the 2D mesh. Here, you can change elements such as the maximum and minimum triangle areas, as well as the setting for boundary points – i.e. how does the border of the meshed element react with the rest of the model.
4. Mesh the polygon by selecting Model > Meshing > Mesh 2D Zone
5. Select whether you wish to add any voids, breaklines or walls within your mesh. Navigate to your ground model within and upload it if not already added by defaut. Select OK. This opens another prompt dialog which asks you where and when you would like to run the mesh simulation. The pc you use to create the mesh must have a 2D ICM licence.
The mesh will then be generated. The progress of this can be seen in the simulation status control underneath the main mapper. You will be notified when the simulation is complete.
6. Select Mesh Ready in the Status Control dialogue to open up a Manage mesh results Dialogue box. Select Load mesh from the dialog to load the mesh on your screen. This will display the mesh.
The video below taken from the Innovyze YouTube Channel shows the process described above.