Cross Section Configuration
The Build Cloud Cross Sections dialog provides the necessary controls to define the filtered cloud sections. As inputs, it requires a Cross Section Reference Object which defines the direction axis for the cloud processing. This can be any object that defines a direction and will use the Z axis of that reference object.
When using Planar Sections, this reference object defines the direction the normal vector of the filter planes will lie, and for Cylindrical Sections it defines the central axis for the coaxial cylinders. When the direction object is a b-spline, planes will be added normal to the spline at the specified distance along its curve, using the spline direction at that point.
Alternatively, the Use Selected option can be used to select from pre- existing planes to use in the filter process.
The following parameters can be set:
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Start Distance. Defines the distance from the origin of the reference object to the first cross section
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Section Spacing. The distance between the cross sections
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Proximity Threshold. Defines how close data must be to the cross section to be included in the resulting cloud
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Maximum Section Count. Defines the total number of cross sections from the start location.
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Limit Planar Cross Section Radius. When enabled this option restricts point selection to a radial proximity to the axis of the reference object.
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Project Proximate Points to Reference Plane. This check box provides an option to project selected points onto the cross section plane to ensure perfectly planar results.
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Cloud Thinning Settings. This button provides access to the additional cloud thinning controls.