Get Highest Layer Clouds

Function

This Step sorts the centers of point cloud parts in descending order along a specified direction, and then obtains the highest-layer point cloud.

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Usage Scenario

Keep point clouds that meet the requirements along the user-defined reference direction. Unlike Get Highest-Layer Points, this Step process the point cloud directly and usually follows Steps including Point Cloud Clustering, Apply Masks to Point Cloud, etc.

Input and Output

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Parameter Description

Reference Direction

X, Y, Z
Default setting: X = 0; Y = 0; Z = 1.0
Description: Set the X, Y, or Z value to define a reference direction.

Layer Settings

Only Get Highest One
Default setting: Unselect
Description: Select to obtain the point cloud on the highest layer along the specified direction. Otherwise, all point clouds on the highest layer will be obtained.
Layer Height
Default setting: 0.1
Description: Set the layer height. The figure below shows the output effects when the layer height is set to 0.1 and 0.035 respectively.
../../../../../_images/layer_height.png
Layer Tolerance
Default setting: 1.0
Description: Set the upper limit of height difference between the highest layer and the rest of the layers, which is equal to the product of layer height * layer tolerance. If the distance from the point to the highest layer is less than this upper limit, it is on the highest layer.

Cloud Settings

Use Max Size Cloud Normal
Default setting: Unselect
Description: Select to use the normal of the largest point cloud as the reference direction. Once this option is selcetd, the Reference Direction will be invalid.