Current Help System: PC-DMIS Laser (View Core Help)

### SELECT

Pointcloud Operator dialog box - Select Operator

This operation selects a subset of data contained in a COP command.

Applying the Select operation to a Pointcloud can be done by clicking the Select Pointcloud button from the Pointcloud toolbar or by selecting the Operation | Pointcloud | Select menu item. By default, the Polygon selection method is used when applying the Select Operator from the Pointcloud toolbar.

To select a region of points:

1. Select the desired option button inside the dialog box:

BOX

C IRCLE

SPHERE

POLYGON

Note: Press the End key to close the polygon selection.

2. Select the Pointcloud command you want to apply the selection to form the list of commands.

3. Make the selections that define your selection type by clicking and dragging in the CAD in the Graphics Display window. The axis of the selection entities should be perpendicular to the current view. Use “Table 1” as a guide for what you should select.

4. Select In if you want to keep the points inside the selection domain or Out if you want to keep the points outside the selection domain.

5. After clicking the necessary points in the Graphics Display Window to define the selection type, click the Apply button. The points inside/outside the selected domain are displayed by PC-DMIS in the Graphics Display window. If you use the Sphere selection type, the closest pointcloud point is used for the center of the sphere.

6. When you’re finished, click Create. PC-DMIS will insert a COPOPER/SELECT command. See “COPOPER/SELECT”.

If you want to select the complement data instead, after you click Select, click the Complement button, and then click the Create button. PC-DMIS creates COPOPER/COMPLEMENT command in the Edit window. See “COPOPER/COMPLEMENT”.

Table1
Type | Points Needed
Box | Select two corners
Circle | Select the center and a point specifying the radius of the circle.
Sphere | Click one point. PC-DMIS projects it onto the cloud of points to find the closest point. This represents the center of the selected sphere. Click another point. PC-DMIS uses this second point to determine the radius of the sphere.
Polygon | Select the vertices of the polygon. Press the End key to close the polygon.
Point | Click on the point of the cloud of points you want to select

When selecting a Point, a dialog box opens with information about the point. This box contains the Point ID, Point ID Coordinates, estimated normal of the Point ID. The corresponding CAD points are also displayed with CAD coordinates and CAD normal. Finally, the deviation between the Point and CAD is shown. Point selection has no associated COPOPER command.

Clicking Create inserts a COPOPER/SELECT command into the Edit Window like the following examples:

COPOPER4 =COPOPER/SELECT,BOX,SIZE=27377

REF,COP1,,