Unroll Polygonal Section

Steps

1.Open the LiDAR360MLS software and click on the Unroll Polygonal Section button. The 3D window will default to 2D mode, and a section unfolding window will pop up. Additionally, the polygon section unfolding button will lock other functionalities, and only manually lifting this button will exit this function and allow access to other functionalities. See the illustration below:

Unroll Polygonal Section

The parameter settings window will be displayed in the top left corner of the 3D window. As shown in the image:

Parameter Settings Page

Parameter Setting

• Buffer: Control the width of the section.
• Minimum Distance: The surface unfolding operates similarly to the unfolding method of a differential curve. This parameter adjusts the granularity of the differentiation. It is disabled when unfolding polygonal or cylindrical sections and can only be adjusted when unfolding surfaces.

2.After completing the parameter settings, draw the section line that needs to be unfolded in the main window using the line drawing method. Once the drawing is completed, double-click the left mouse button to perform the section unfolding operation. After the progress bar completes, the result of the section unfolding will be displayed in the section window, as shown in the image.

The result of unfolding the polygon section.

The arrow at position 4 in the above image indicates the direction of observation for the unfolded section result. Button 1, located at position 1, allows setting the front or back view. Button 2, located at position 2, enables measurement operations on the unfolded result, as shown in the image.

Measuring the unfolded polygon section result.

Button 3 in the unfolded cylinder section result image allows saving the section unfolding result. You can choose to save the format as LiData format point cloud for further processing in LiDAR360MLS or save it as Las format point cloud for further processing in third-party software. The saved point cloud will retain the attributes of the original point cloud.

Select the format for saving the result.

The saved LiData point cloud can be opened in LiDAR360MLS.

The saved Las point cloud can be opened in third-party software.