This function generates a binder surface using the boundary of part. If a region of part can be a region of binder, the user can select this function. The dialog box is illustrated in Figure 7.2.16.

Figure 7.2.16  Boundary Line Binder

DEFINE BINDER ORIENTATION

This function defines the UV-direction of the binder surface.  The line with the arrow controls the surface shape and must be parallel to the direction of the part boundary.  Figure 7.2.17 shows a typical orientation of the U-V axes relative to the part.

Figure 7.2.17  Define Binder Orientation

CREATE BOUNDARY LINES

This function generates boundary lines of the part.  The boundary lines are kept in the current part. Figure 7.2.19 illustrates typical boundary line of a part.

EDIT BOUNDARY LINE

The functions in this menu are used to edit the boundary lines generated from the Create Boundary Lines function.   The dialog box is illustrated in Figure 7.2.18. The description of edit line functions is discussed in Section 5.1.

Figure 7.2.18  Edit Boundary Line dialog box

Figure 7.2.19  Created Boundary Line

SELECT BOUNDARY LINE

This function is used to select the desired boundary lines to generate binder surface. The selected line will be highlighted such as illustrated in Figure 7.2.20.  Click on the Apply button to generate the binder surface.  The generated binder is illustrated in Figure 7.2.21.

Figure 7.2.20  Selected Boundary Line

Figure 7.2.21  Created Binder

If the binder is not acceptable, the user may create another binder by editing the boundary.