Once Edit button is selected, the program will pop up the Modify Addendum dialog box, as shown in Figure 7.3.23.

Figure 7.3.23  Modify Addendum

The user can modify addendum by the following 6 methods.

1.         SMOOTH

This option allows the user to modify addendum by selecting POP Line, Bar Height, Bar Height, Bar Width, CBar Height or Wall Angle.

Once the Smooth option is selected, all the section lines and POP Lines on addendum are displayed in graphic window. As illustrated in Figure 7.3.24, the purple line is the section line and the black line is the POP Line. Then select a smooth type and select a Profile. The entire addendum where located the selected profile will be the object for this smooth operation.

Figure 7.3.24  Profile and POP Line

POP Line

This function allows the user to change the addendum by smoothing the shape of part POP Line. after a profile is selected, the program will highlight the POP Line in the selected region as shown in Figure 7.3.24 and pop up a dialog box as shown in Figure 7.3.25.

Figure 7.3.25  Smooth POP line

There are three methods can be used to smooth the POP Line.

AUTO SMOOTH

Automatically smooth the POP Line in the selected region.

MANUAL SMOOTH

Entire POP Line is smoothed according to the movement of slider.  The Select Fixed Points option enables the user to select more than one fixed point. These selected points will not be moved during the smooth operation.

THROUGH FIXED POINTS

This function allows the user to smooth a segment of the POP Line by selecting a number of fixed points on the POP Line. Click on the Preview button to view the smoothed POP Line.  If the smoothed shape is acceptable, clicks on the Apply to accept the smoothed POP Line.  Click OK to exit the Smooth dialog box.  Click on the Close button in the Smooth Addendum dialog box to exit the menu.  The profiles and the addendum are automatically updated according to the smoothed POP Line.

Figure 7.3.27 illustrates the smoothed POP Line and the relevant profiles. After the POP Line is smoothed, click Close to exit the dialog box. The program will update the profiles and addendum according to the smoothed POP Line. The updated addendum is illustrated in Figure 7.3.28.

Figure 7.3.26  Selected POP Line for Smoothing

Figure 7.3.27  Smoothed POP Line and Profiles Through Fixed Points

Figure 7.3.28  The Updated addendum

BAR HEIGHT

This function allows the user to smooth draw bar height of the profiles in the selected region. The program prompts the user to select a segment of profile to define the region.  The operation is similar to the POP Line smoothing.

BAR WIDTH

This function allows the user to smooth draw bar width of the profiles in the selected region.  The program prompts the user to select a segment of profile to define the region.  The operation is similar to the Bar Height.

CBAR HEIGHT

This function allows the user to smooth CBar height of the profiles in the selected region.  The program prompts the user to select a segment of profile to define the region.  The operation is similar to the POP Line smoothing.

WALL ANGLE

This function allows the user to smooth wall angle of the profiles in the selected region.  The program prompts the user to select a segment of profile to define the region.  The operation is similar to the POP Line smoothing.

2.         MORPH

This function enables the user to modify addendum by morphing the POP LINE, BAR HEIGHT, BAR WIDTH, CBAR HEIGHT and WALL ANGLE. Once this option is selected, the user needs to select a morph type and click on the Apply button. The program prompts the user to select the starting and ending profile to define the region to be modified.

POP LINE

This function allows the user to morph selected region of the POP Line.  The user needs to select the starting and ending profile to define the region that is subjected to morphing.  If more than one region is defined in the addendum, the starting and ending profiles in each region are highlighted with a circle at each profile.  After selecting two profiles, the user needs to confirm the selection in order to highlight the POP Line as illustrated Figure 7.3.29. The morphing operation of POP Line is similar to the Line Morphing function.  Figure 7.3.30 illustrates the morphed POP Line and the related profiles.  After the POP Line is morphed, the user can click on the Close button to dismiss the dialog box. The profiles and addendum are updated according to the morphed POP Line. Figure 7.3.31 illustrated the updated addendum after the POP Line is morphed.

Figure 7.3.29  Selected POP Line for Morphing

Figure 7.3.30  Morphed POP Line and Profiles

Figure 7.3.31  Updated Addendum According to the Morphed POP Line

BAR HEIGHT

This function allows the user to morph draw bar height of the profiles in the user-defined region.  The user selects the starting and ending profile to define the region.  The operation is similar to the POP Line morphing operation, with an exception that the control line on top of the draw bar is morphed to alter the draw bar height of the profiles.

BAR WIDTH

This function allows the user to morph the draw bar width of the profiles in the user-defined region.  The user selects the starting and ending profiles to define the region.  This operation is similar to the BAR HEIGHT line morphing operation with an exception that the control line on top of the draw bar is morphed to alter the draw bar width of the profiles.

CBAR HEIGHT

This function allows the user to morph the counter bar height of the profiles in the user-defined region.  The user selects the starting and ending profiles to define the region.  This operation is similar to the POP Line morphing operation with an exception that the control line on the bottom of the counter bar is morphed to alter the counter bar height of the profiles.

WALL ANGLE

This function allows the user to morph the wall angle of the profiles in the user-defined region.  The user selects the starting and ending profiles to define the region. This operation is similar to the POP Line morphing operation with an exception that the POP Line is morphed to alter the wall angle of the profiles.

3.         MERGE

This function enables the user to merge the control line of the POP LINE, BAR HEIGHT, BAR WIDTH, CBAR HEIGHT and WALL ANGLE to a selected line.  The profiles are repositioned according to the distance from the control line to the selected line. Once this option is selected, the Create Spline button will be activated, as shown in Figure 7.3.22. Clicking on this button, the program will pop up the Create Spline dialog box as shown in Figure 7.3.33 . Refer to Section 7.1.7.1 Inner Fill for detailed description of this dialog box.

             

Figure 7.3.32  Merge Addendum

Figure 7.3.33  Create Spline

POP LINE

Modify profiles according to the merged POP LINE.

BAR HEIGHT

Modify profiles according to the merged BAR HEIGHT control line.

BAR WIDTH

Modify profiles according to the merged BAR WIDTH control line.

CBAR HEIGHT

Modify profiles according to the merged CBAR HEIGHT control line.

WALL ANGLE

Modify profiles according to the merged WALL ANGLE control line.

Figure 7.3.34(a) illustrates the definition of a straight line for Merge POP Line operation. Figure 7.3.34(b) illustrates the result of the profiles after the POP Line is merged to the selected line. The addendum mesh is automatically updated after the Merge Addendum dialog box is closed.

(a)  Merge POP Line              (b)  Merge POP Line Result

Figure 7.3.34  Merge

4.         EDIT FLINE

This function enables the user to modify addendum by editing the entire POP LINE, BAR HEIGHT, BAR WIDTH, CBAR HEIGHT and WALL ANGLE. Once this option is selected, the user needs to select an edit type and click on the Apply button. The program pops up a dialog box as illustrated in Figure 7.3.35. In this dialog box, click Add Point button to add control points on the boundary line and then click on the middle mouse button to confirm; click Remove Point button to remove the control points on the boundary line; click Move Point button to move the control points on the boundary line and then click on the middle mouse button to confirm. After editing the boundary line, click Exit button to update the addendum automatically.

Figure 7.3.35  Edit FLine

ADD POINT

Click this button to add control point on the boundary line. Click the middle mouse button to confirm after adding, or click the left button to add control point on boundary line.

REMOVE POINT

Click this button to remove control point from the boundary line, or click the right mouse button to remove the control point from the boundary line.

MOVE POINT

Click this button to move the control point on the boundary line. Click the middle mouse button to confirm after moving or hold the left mouse button move the control point on the boundary line.

Clicking Exit button after editing the boundary line, the program will automatically update the addendum.

5.         SPLIT

This function enables the user to divide an addendum segment into two independent segments. This function is useful for locally modifying the addendum without changing the shape of other addenda. Once this option is selected, the options POP LINE, BAR HEIGHT, BAR WIDTH, CBAR HEIGHT and WALL ANGLE will be disabled. The user should select a profile in the region to be split. If the addendum region where the profile locates is closed, the program will prompt the user to select another profile to split this closed region. If the selected region is open, the program will automatically split this region along the profile.

After splitting, a new addendum name is listed in the addendum list, while a master profile type is listed in the master profiles list.

6.         COMBINE

This option allows the user to combine two adjacent independent regions into one region. Once this option is selected, the options POP LINE, BAR HEIGHT, BAR WIDTH, CBAR HEIGHT and WALL ANGLE will be disable, the program will prompt the user to select two adjacent independent addendum regions. After the selection, the program will automatically combine the two regions into one region.