This function is used to fill the gap of double-attached, as illustrated in Figure 6.1.85. After the master and the slave (Half/Full Input), or the Group1 and Group2 (Two Parts) are defined on the Double-Attached page, the Double Fill options are enabled. By clicking the Apply button, the program will automatically generate control lines between two parts according to the different types of double-attached.
Figure 6.1.85 Double fill
· ADJUST BOUNDARY POINT
Click this button to adjust the position of a boundary point in order to determine the region to be filled. For Double-Attached Half/Full Input, adjust the two boundary points of one side and the boundary points of the other side will be symmetrically adjusted simultaneously, as illustrated in Figure 6.1.86. For Two Parts, the user needs to adjust four boundary points respectively, as illustrated in Figure 6.1.87.
Figure 6.1.86
Highlight two boundary points
Figure 6.1.87 Highlight four boundary points
· CONTROL LINE
The program automatically generates some key control lines, adds them to the control line list and marks them with serial numbers in the display area, as illustrated in Figure 6.1.88.
Figure 6.1.88
Control lines
· LINE TANGENT
The program provides two methods to define the direction of control lines, as illustrated in Figure 6.1.89.
Figure 6.1.89 Line Tangent
1. BY REFERENCE LINE
Select a reference control line and then select other control lines. The selected control lines will use the direction of the reference line as their directions.
As illustrated in Figure 6.1.90 and Figure 6.1.91, select control line 6 as the reference control line first. Then select the control line 5 to change its direction and show the changing result.
Figure 6.1.90
Select reference control line
Figure 6.1.91
Change the direction of control line 5
2. USER DEFINE
This function allows the user to define the direction of control lines by defining a vector. After selecting a control line, a Vector dialog box illustrated in Figure 6.1.92 appears. Refer to Section 5.1.4 Shortest Curve for detailed description about defining vector.
Figure 6.1.92
Vector dialog box
· MODIFY LINE POSITION
When the user clicks this button, the program prompts the user to select a control line. Put the cursor on the filling boundary to select a position point. The program will automatically move the select control line to the point.
For Left/Right Half/Full Input, the user only needs to select one position point on one side of the boundary, and the point on the other side will be calculated automatically.
For Two Parts, the user needs to select two position points on the two sides of boundary.
· ADD
The user may add control lines on the part boundary.
· DELETE
Click this button and select the control lines to be deleted in the display area. Click the left mouse button to delete.
· EDIT
Click this button and select a control line. The Curve Edit dialog box illustrated in Figure 6.1.93 is displayed. Refer to Section 5.1.15 Edit Line for detailed description about this operation.
Figure 6.1.93
Edit control line
· Apply
Click this button to generate elements and surfaces in the fill region, and add these elements and surfaces to the part name DOUBLE.
· Remove
Click this button to delete all filled elements and surfaces from DOUBLE part.
Note: For Double-Attached Half/Full Input, the filled surface is symmetric about the symmetry plane, as illustrated in Figure 6.1.94.
For Two Parts, the filled surface is not symmetric, as illustrated in Figure 6.1.95.
Figure 6.1.94
Symmetric fill
Figure 6.1.95
Asymmetric fill