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Version: 3.4.20 (unreleased)

Point Clouds Ribbon Tab

Context-sensitive tab — appears when the Point Cloud context is active.

Commands available on the Point Clouds ribbon tab, grouped by panel.

Georeferenceing​

Add GCP​

Tooltip: Add a ground control point

Add a ground-control-point tiepoint to the active point cloud.

Rescale​

Tooltip: Rescale the point cloud

Apply a scale correction to the active point cloud based on its tiepoints.

Correct​

Lock​

Tooltip: Lock the point cloud

Lock the active point cloud against further corrections.

From Orientation​

Tooltip: Correct from orientation

Apply a corrective transform computed from the active point cloud's orientation control points.

From Both​

Tooltip: Correct from GCPs and orientation

Apply a corrective transform that combines tiepoints and orientation control points.

From GCP​

Tooltip: Correct from GCPs

Apply a corrective transform from tiepoints, with or without scaling.

Dropdown items:

  • From GCP — Correct from GCP only with no scaling
  • From GCP with Scaling — Correct from GCP only with scaling enabled

Rescale GCP​

Tooltip: Rescale from GCPs

Rescale the point cloud from tiepoints, isotropically or anisotropically.

Dropdown items:

  • Rescale From GPC — Rescale From GPC
  • Anisotropic Rescale GCP — Anisotropic rescale from GCPs

Interpret​

Facies Attribute​

A group of two controls:

  • Create — New facies attribute
  • Active attribute (drop-down) — Active facies attribute

Radius​

Tooltip: Paint sphere radius

Radius (in world units) of the brush used to paint facies onto points.

Paint Facies​

Tooltip: Paint facies onto points

Click and drag in the 3D view to paint the active facies onto points inside the brush sphere.

Facies​

A group of three controls:

  • Facies — Add a new facies
  • Apply — Apply to selected vertices
  • Active facies (drop-down) — Active facies

Iterative Closest Point​

See ICP Alignment.

ICP​

Tooltip: Run iterative closest point

Align the active point cloud to a mesh or another point cloud shown in the view. With several shown, a menu asks which. Click it again during a run to stop.

Sampling​

Tooltip: ICP sampling fraction

Fraction of the cloud's points sampled when running ICP (lower values run faster).

Keep Closest %:​

Tooltip: Share of correspondences kept

ICP keeps this percentage of its correspondences, the closest ones, and drops the rest (100 keeps them all). It already down-weights outliers, so lower this only to drop the farthest pairs outright.

Max Distance​

Tooltip: Maximum correspondence distance

Maximum distance allowed between a pair of corresponding ICP points.

Use Tiepoints​

Tooltip: Use tiepoint centroids

Seed ICP using the centroids of existing tiepoints to constrain the initial alignment.

Point to Plane​

Tooltip: Point-to-plane ICP

Minimise the distance from each point to the reference surface: a mesh's triangles, or against a point cloud the plane through each of its points' nearest neighbours.

Point to Point​

Tooltip: Point-to-point ICP

Minimise distance between corresponding source and target points (classic ICP).