Dividing curves

Selected curves can be divided simply by selecting a menu item. They can be divided individually or as a whole, with specification of the following two factors: 

< Number of divisions and weight of division density >

Previously divided curves can be divided again with new division factors. The new division always overrides the old division. However, it is not allowed to divide curves which have already been involved in mesh generation and thus have become a part of the mesh. The curve selection tool should be activated in order to divide curves.

> Dividing curves individually

A group of selected curves as well as a single curve may be divided at once, with individual application of the specified number of divisions and weight of division density. This can be achieved simply in the following steps.

	1) Set the number of divisions and the weight of division density by selecting the corresponding items of menu, if necessary.
	The menu items corresponding to the number of divisions and the weight of division density are . marked.
	2) Select curve(s) to divide. Do not select any meshed curve which is already used for mesh generation. In order to divide a meshed curve, the mesh associated with it should first be removed,
	3) Select one of the following menu items.
	"Divide" item
		The number of divisions and the weight of division density with . marks are applied in dividing the selected curve(s).
		An item for the number of divisions The selected curves are divided by the number of divisions represented by the menu item.
		"Other Divisions..." item
		"Other Divisions" dialog box appears. This dialog is useful for dividing the curve(s) by a number of divisions not shown as a menu item. Set item, and click button. Be sure item is not checked.
		An item for the weight of division density The selected curves are divided with the weight represented by the menu item.
		"Other Weight..." item This dialog is useful for dividing the curve(s) with weight of division density not shown as a menu item. Set items, and click button.
	4) Select "Reverse Weight" item, if necessary.
	If the weight is applied in the direction contrary to your intention, select "Reverse Weight" menu item. Then, the direction is reversed.

> Dividing curves as a whole

A group of selected curves may be divided as a whole. In this case, the number of divisions is applied as the total number of divisions in all the selected curves. This can be achieved by the following steps.

	1) Set the number of divisions and the weight of division density by selecting the corresponding items of menu, if necessary.
	2) Select curve(s) to divide.
	3) Select one of the following menu items.
		"Divide As a Whole" item
		If you pull-down menu with key (Windows : key ) p ressed, you will find the first menu item is turned into "Divide As A Whole."
		"Other Divisions..." item
		"Other Divisions" dialog box appears. This dialog is useful for dividing the curve(s) by a number of divisions not shown as a menu item. Set item, and click button. Be sure that item is checked.

The weight of division density is not applied in case of dividing curves as a whole. Therefore, there is no need to reverse the weight.

The weight of division density is not applied in case of dividing curves as a whole. Therefore, there is no need to reverse the weight.

< Comparison of dividing curves individually and as a whole >

> Setting the number of divisions

The currently effective number of divisions is indicated by . mark in front of the items for number of divisions such as "Divide 1", "Divide 2", ... , and "Other Divisions..." Select one of these items to set the number of divisions effective for f u t u re use. The newly selected item is . marked, and selected curve(s) is(are ) divided by the specified number. The corresponding number of divisions will be applied for future curve division by "Divide" item.

> Setting the weight of division density

The currently effective weight of division density is indicated by . mark in front of the items for weight of division density such as "W=1:1", "W=1:2", ... , and "Other Weight..." Select one of these items to set the weight of division density effective for future use. The newly selected item is . marked, and selected curve(s) is(are) divided with the specified weight. The corresponding weight of division density will be applied for future curve division by "Divide" item.

> Removing divisions from divided curves

It is possible to remove divisions from divided curves. Select "Divide None" item from menu. Then, all the selected curves will be restored to intact state with no division. But, in the case of frame analysis, a straight line is considered as one element even if it is not divided. Therefore, "Divide None" applied to a straight line has the same effect as "Divide 1" in frame analysis.

> Dividing curves using F keys

A single curve or a group of selected curves may be divided using F keys(F1 - F24). The curve division is achieved simply by pressing one of the F keys after selecting curve(s). The F number corresponds to the number of divisions. For example, pressing will divide the selected curve(s) into 3. If key (Windows : key) is pressed at the same time, "Apply as a whole" option applies.