Figure 4: Internal Mesh editor display. programs of the TriComp series. In other words, what we learn about Mesh for electrostatics is also useful for the magnetic solutions we will discuss later. Click the Mesh button to open the program. Initially, the screen is blank. Choose File/Edit file from the menu at the top. The selection dialog shows the four files in the data folder. Pick ElectronDiode.MIN , where MIN designates M esh IN put. The internal editor shows the file contents (Fig. 4 ), a set of organized numbers. For now, note that there are Region sections that represent the different physical objects in the solution space.
Each region section contains a set of line or arc vectors that gives the region shape. The numbers are the coordinates of the vectors. There are two ways to create or to modify the content of MIN files: Use the Mesh Drawing Editor , an interactive 2D CAD program. Use a text editor to change numbers directly. We will discuss both options in following chapters. For now, exit the editor with no changes. 8