Build – Subsample – Adaptively – Points

Reducing the Selected Points Adaptively

This command is used to reduce the points selected in the currently displayed element so that surface points density in simple-shaped areas is lower than that in complicated-shaped areas.

Memo

The elements selected before execution of this command will be divided to triangular polygons.

Operating Procedure

1

From the element list, select one desired

 

 

element.

 

2

Select the desired points.

 

3

From the [Build] menu, select [Subsam-

 

 

ple] –[Adaptively] then click [Points].

 

 

The [Build-Subsample-Adaptively-Points] dia-

 

 

log box will appear.

 

 

• The selected element will be ready to be displayed

 

 

 

in all windows. It will be displayed if it is not dis-

 

 

 

played in the active window or the windows for

 

 

 

which all the elements are set to be displayed.

 

4

Set the parameters.

 

5

Click the [Apply] button.

 

 

The data of the selected points will be reduced

• If you change the parameter settings and click

 

according to the parameter settings so that

the [Apply] button again, the data comprising

 

surface points density in simple-shaped areas

the points will be reduced according to the new

 

is lower than that in complicated-shaped areas.

parameter settings.

 

• The polygons comprising the selected element

 

 

 

will be triangulated.

 

 

 

 

 

 

 

 

Memo

 

 

 

In some cases, the number of vertices present after data

 

 

reduction may not match the specified number.

 

6

Click the [OK] button.

 

 

This will confirm execution of data reduction

 

and close the dialog box.

Parameters for [Build-Subsample-Adaptively-Points] Dialog Box

Number of points

Reduces the current number of points to the specified number. When the [Apply] button is clicked,

 

the current number of vertices will be displayed. (The default for the “Number of points” param-

 

eter is set so that the number of selected points will be reduced by 50%.)

Range of errors

The program reduces data in accordance with the value that you enter. The value serves as a gen-

 

eral yardstick for the amount of reduction-induced change in model tolerance.

 

 

 

 

 

 

Memo

 

 

The default setting is “0.2”.

Fix boundary

Among the selected points, the points present on the boundary of the hole will be excluded from

 

data reduction.

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