Build – Fill Holes – Manual

Filling Holes Manually

This command is to create polygon data using the mouse for the holes (i.e. areas where no data is present) located in the area selected in the currently displayed element.

 

Left

: Designates a point.

 

Middle ([Shift] + Left) : –

 

Right

: Cancels designation.

 

 

 

Operating Procedure

 

1

From the element list, select one desired

 

element.

 

2

Select the points on the boundary of

 

the hole for which you want to create

 

polygon data.

 

3

From the [Build] menu, select [Fill

Holes] and then click [Manual].

The system will search for holes present within the area of the selected points. A bar will be displayed during search to indicate progress. If a hole is found, only the points on its boundary will be selected.

If no holes are found, a message dialog box will appear. Clicking the [OK] button will close the dialog box and exit the menu.

Chapter 2

Build

Menu

4 Among the selected points, click the three nodes of a triangular polygon with the left mouse button, one by one in a counter-clockwise direction (when viewed from the front of the polygon).

When the node is clicked, a white rubber band will appear between that node and the mouse pointer.

When all the three nodes are clicked, a polygon composed of those three nodes will be formed.

Selection of the points which are no longer on the boundary of the hole due to the created polygon will be canceled.

To cancel designation of the points or created polygon, click the right mouse button. By clicking the right button repeatedly, it is possible to return to the state in effect before this command was selected.

5 Whenkey. the hole is filled, click the [ESC]

Selection state of points will remain and Build

Fill Holes – Manual mode will be canceled.

Note

It is not possible to designate nodes if they have not been selected.

It is not possible to designate nodes of a triangle fac- ing opposite the adjacent polygons.

While a rubber band is displayed, it is not possible to switch the view and designate a point or change the window size.

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