The Action Tab is the fourth tab in the Point Cloud Manager. All data extraction, as well as virtual surveying, is done here in Carlson Point Cloud. A Scene with 3D data must be currently opened for the controls in the Action tab to be enabled; otherwise they will be greyed out.
The Action functions that can be used with a Scene are broken up into five different Panels: Selection Set, Edit, Transform, Create, and Extract.
The four radio buttons at the top of the Selection Set panel operate as two sets and determine the behavior of the selection methods (Individual, Window, Perimeter and Polyline).
Add/Remove determines whether the objects that pass the criteria of the selection method are added or removed from the current selection set.There are also three radio buttons; Cloud Points, Survey Points and Surface which allows the user to operate on points contained within a Cloud/Scan, those imported in from manual survey work (e.g. GPS stakeout points) or a surface (TIN).
Inside/Outside determines whether to perform the selection operation on entities inside or outside the boundary of the current selection set.
There are four selection modes:
Individual, in which every mouse click attempts to select the object currently under the cursor - useful for precision selection of individual points.
Window in which the user clicks a base point and then clicks a second point that defines the opposite corners of a selection window.
Perimeter in which the user clicks several times to define the shape of the perimeter and then right-clicks to close the perimeter.
Polyline in which the user selects a polyline previously drawn in the scene using the create Polyline command.
There are also seven global selection buttons:
All which selects all entities in the scene.
None which deselects all entities in the scene
Invert which inverts the current selection set within the scene.
Elevation where the user specifies a maximum and minimum elevation and the selection set is built from points between the specified elevations. Points outside the elevation range are ignored.
Color which selects all points with a matching RGB value to the point selected. Adjust the Color Tolerance to also select points with closely-matching RGB values. Users also have the ability to click on the Screen Pick button to set the tolerance. Click Screen Pick, choose the first point then the second point and the tolerance will be automatically calculated. The color tolerance defines the range of colors that will be selected from the base color. Users can then Invert the Selection or Create a Region from it.
Sphere where any Points within the specified radius of the Specified Point Position will be selected. Adjust the Radius value to select more or less points.
A Region of selected Points can be saved to be hidden or to re-select at a later stage. See the Scene Tab page for more information.
The Edit panel contains controls for modifying the currently visible set of points.
The Information button displays a properties
dialog with some general statistical information about the current
selection set, including the number of points selected, ranges of
their positions, color ranges and intensity values. Click Show
Advanced to display the Mean and Standard Deviation.
The Delete button deletes the selected points from the scene and from any objects that contained them. The User will be prompted to confirm whether to Delete selected entities. Once all Scenes containing that selection are closed, the user will be prompted to Modify existing, Create New or Discard Changes.
Modify existing will save the changes to the
original object (deleting points from the object as it is on disk,
which cannot be undone).
Create New will create a new object to save the
modified data and is typically the safer option because the
original data is still available if needed.
Discard Changes will close the scene without
saving your changes to the original object.
The Hide button temporarily hides the current selection set, which isolates the current area of interest without making permanent changes to the dataset.
Show All undoes all hide operations and will
revert to display all Points in the scene.
Image allows the user to drape an image over a TIN.
Smooth and Clean will act on the Cloud or TIN in the current Scene. See Smooth Cloud, Clean Cloud, or the TINs entry.The Transform panel contains
three functions that allow for minor adjustments to be made to the
selection set if required.
The Create Panel allows a user to manually create new project items either by specifying their points in the viewer (Point Polyline and Text) or by creating a new data set from the currently selected data points (Cloud, TIN and Grid).
Create Point
Clicking Point in the Create Panel will set the Current Mode to Point Creation and display the four panels that comprise the point creation mode.
Create Polyline
Clicking Polyline in the Create Panel will set the Current Mode to Polyline Creation and display the four panels that comprise the polyline creation mode.
Create Cloud
Clicking Cloud will bring up the standard Point Cloud creation dialog. In this case it will create a cloud with all the selected data in the current scene.
Create TIN
Clicking TIN in the Create Panel will bring up the standard TIN Creation dialog. In this case it will create a TIN with the selected Cloud data in the current scene.
Create Text
Clicking Text in the Create Panel will set the Current Mode to Text Creation and display the two panels that comprise the text creation mode.
Create Grid
Clicking Grid in the Create Panel will bring up the standard Grid Creation dialog. In this case it will create a Grid with all the selected data in the current scene.
Create Solid
Clicking Solid in the Create Panel will bring up the Create Solid dialog. In this case it will create a Solid from the selected data in the current scene.
Each of the Extract functions are designed for use on a
processed specifically for either a processed TIN or cloud or
solid. Because of the complexity, each function has its own help
page.
If the user wanted to have the extracted lines automatically
drawn to CAD, go to the Project tab then Settings
> CAD Settings and enable the option Automatically
draw all Points, Polylines and Text to CAD.
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