GMS:Creating a TIN
TINs can be created three different ways in GMS: manually entering the vertex locations and triangulating, converting a different GMS data type to a TIN, and copying a currently existing TIN.
Manually Creating a TIN
A TIN can be created manually from the following steps:
- Right-click in the empty space of the Project Explorer and select the New → TIN command.
- Select the Create Vertices tool from the TIN Tool Palette.
- Create the vertices by clicking inside the Graphics Window at the xy coordinates where the vertex is to be located. (To change the vertex location see: Editing a TIN)
- Select the Triangulate command from the TINs menu.
Creating a TIN from GMS Data
- Mesh to TIN
- A triangle is created from each triangular element in the mesh.
- Grid to TIN
- Creates a new TIN from the selected 2D grid.
- Scatter Points to TIN
- Creates a set of TIN vertices.
- Contacts to TIN
- Creates a TIN surface from a set of selected contacts.
- Watertable to TIN
- Uses water table coordinates from a set of boreholes to converted to TIN.
- Add Contacts to TIN
- This command is used to enter a point from a contact into the active TIN . The contact(s) are first selected and the command is then chosen from the Borehole menu. Typically all contacts which should be part of a TIN are selected before generating the TIN, but sometimes one is inadvertently left out, or more boreholes are added later.
Copying a Current TIN
To make a copy of a TIN that currently exists in GMS follow these steps:
- Select the TIN to be copied using the Select TINs tool.
- Select the Duplicate TIN command from the right-click menu. A dialog appears prompting for the Z-offset of the new TIN. The Z offset is used to displace the TIN above or below the TIN being duplicated.
GMS – Groundwater Modeling System
|Modules:||2D Grid • 2D Mesh • 2D Scatter Point • 3D Grid • 3D Mesh • 3D Scatter Point • Boreholes • GIS • Map • Solid • TINs • UGrids|
|Models:||FEFLOW • FEMWATER • MODAEM • MODFLOW • MODPATH • mod-PATH3DU • MT3DMS • MT3D-USGS • PEST • PHT3D • RT3D • SEAM3D • SEAWAT • SEEP2D • T-PROGS • ZONEBUDGET|