Once the
draw bead is defined, this button is enabled, as illustrated in Figure 10.3.13. Click this button to enable the
Operation button illustrated in Figure 10.3.14. The modification Operations
include: Respace, Edit, Split, Trim, Combine and Extend.
Figure 10.3.14 Modify draw bead
·
RESPACE
This function allows the user to
respace points on the draw bead. Click this button to display the Respace dialog
box illustrated in Figure 10.3.15. Select a method for definition
and click Apply to confirm. Since screen selection is supported for this
operation, the user can use screen selection to operate different draw beads. The
ID number of the currently edited draw bead is shown in this dialog box.
Figure 10.3.15
Respace dialog box
·
EDIT
This function allows the user to
edit the draw bead. The program will pop up a Curve Edit dialog box for the
user to edit the draw bead with appropriate functions. Refer to Section 5.1.15 for detailed description about operation of this
function. After the user selects a draw bead in the draw bead list, the user
will next click the Edit button so that the selected draw bead will be edited. If
the user does not select draw bead in the list before selecting Edit, the
program will pop up a dialog box for the user to select a draw bead to be
edited through screen selection.
·
SPLIT
This function allows the user to
split a draw bead. Click this button, and the Select Split Point dialog box
will be displayed. The user clicks the left mouse button on the screen to
select a position. Then the program will find the nearest node to the selected
position and split the draw bead at that node. The original draw bead is
divided into two draw beads with the same property as the original draw bead,
as illustrated in Figure 10.3.16. This operation can be performed
on different draw beads continuously.
(a) Before split (b) After split
Figure 10.3.16
·
TRIM
This function allows the user to
trim a draw bead line. The user selects a trim position first on the draw bead
to be trimmed and then selects another node as the trim direction. If a node on
the left side of the trim position is selected, the left part of draw bead will
be trimmed; if a node on the right side of the trim position is selected, the
right part of draw bead will be trimmed. This operation can be performed on
different draw beads continuously.
·
COMBINE
This function allows the user to
combine two adjacent draw beads.
1.
Click
the left mouse button in the display area to select a draw bead.
2.
Select
another draw bead which is adjacent to the selected one, as illustrated in Figure 10.3.17. The program will combine these
two draw bead.
Only one
combine operation can be performed by clicking this button.
(a) Before combine (b) After combine
Figure 10.3.17
Combine draw bead
Note: This function allows the user to combine two adjacent draw beads with different properties. If the two adjacent draw beads have the same property, the combined draw bead will have the same property with them. If the two draw beads have different properties, the combined draw bead will have the same property with the first selected draw bead.
·
EXTEND
This function allows the user to
extend the selected draw bead. Click this button to display a dialog box
illustrated in Figure 10.3.18. The user clicks the left mouse
button on the display area to select a draw bead to be extended. The program
will select the end point which is nearer the selected position as the extend
point. Only one extend operation will be performed by clicking the left button.
Figure 10.3.18
Extend Bead
DISTANCE: Define the extension distance. The
maximum value is 100.
CURRENT: Show the ID number of the current
selected draw bead.