LINE MORPHING
This function is used to modify a line by moving a control point on the line. The morphing operation is described in the following steps.
1. The program opens the SELECT LINE window to select a line to morph.
2. After selecting a line, the program displays the LINE MORPHING dialog window as shown in Figure 6.4.1.
. MORPHING TYPES
There are three types of morphing: NO CONSTRAINT, KEEP C ANGLE and KEEP E ANGLE. For a detailed description of the morphing types, refer to BSE/MODIFY BINDER/MORPHING in Section 6.2.1. Click the arrow button to display the drop down selection.
. SELECT MORPH SEGMENT
This option allows the user to select a segment of the selected line to morph. The program will prompt the user to select two points on the line to define the segment . If no segment is defined, the program will morph the entire selected line.
Figure 6.4.1 Line Morphing Window
. SELECT CONTROL POINT
The user must select a control point to morph the line. Click the left mouse button to select new control point, middle mouse button to use the previous control point, or right mouse button to cancel the selection. Once the control point is selected, the program displays the default morph vector at the control point. Move the mouse to morph the line. The program shows the morphed result in real time. When the desired result is obtained, click the left mouse button again to complete the morphing operation. Click the right mouse button to cancel the operation. If the user wants to define another morphing direction, check the DEFINE MORPH DIRECTION box to activate the option.
. DEFINE MORPH DIRECTION
This option allows user to define a new morphing direction. Once this option is selected, the program activates the SELECT POINT FOR VECTOR button and INPUT COORDINATE window to allow the user to define the direction. Click the SELECT POINT FOR VECTOR button to select a point or node on the screen. The new morphing direction is the vector from the control point to the selected point. The user may enter the vector components directly in the VECTOR COMPONENTS window and click APPLY INPUT VALUE to define the vector.
UNDO allows the user to reject the result from the last morphing operation.
RESET returns the selected line to the original shape after a series of morphing operations.
3. Click EXIT to complete the morphing operation. The program will display the SELECT LINE window to enable the user to select another line for morphing.
4. Click CANCEL in the SELECT LINE window to exit the function.