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Measure Point Cloud

To measure point cloud data, select Measurements tab from the app toolstrip. You can measure point cloud attributes such as distance, angle, and volume using the tools on this tab.

Measurement tab

To measure an attribute of the point cloud, select a measurement tool on the app toolstrip, then interactively select points on the point cloud to return the corresponding measurement.

  • Distance — Measure the distance between any two points in the point cloud.

  • Elevation — Measure the elevation between any two points in the point cloud.

  • Location — Obtain the xyz-coordinates of a point.

  • Angle — Select three points on the point cloud to measure the angles of the triangle defined by the points.

  • Volume — Measure the volume inside a cuboid region on the point cloud. You can interactively adjust the limits and the size of the cuboid.

To clear all measurements, on the app toolstrip, click Remove All Measurements.

Tip

Use the Color and Visualize options for better visualization while you measure the point cloud. For more information, see Visualize Point Cloud Using Color and Camera Views.

Use Keyboard Shortcuts to Navigate

You can use these keyboard short cuts in the Measurements tab of the Lidar Viewer app.

  • Click Esc to undo your measurement tool selection.

  • Click R to enable rotation. You can use these controls in the rotate mode.

    ActionKeyboard ShortcutExample
    Move forward or backwards through the scene. The camera and the target can move.

    w — Forward

    s — Backward

    Animation displaying forward, backward, left, and right movement.

    Move left or right through the scene. The camera and the target can move.

    a — Left

    d — Right

    Look around the scene (pitch/yaw rotation of the camera). Camera position is fixed, target moves.

    Up arrow — Camera pitches up

    Down arrow — Camera pitches down

    Left arrow — Camera turns left in yaw

    Right arrow — Camera turns right in yaw

    Animation displaying the view in a scene using pitch and yaw capability.

    Roll the scene (roll rotation of the camera).

    q — Camera moves clockwise. (Scene appears to move counterclockwise.)

    e — Camera moves counterclockwise. (Scene appears to move clockwise.)

    Animation displaying the view in a scene using the roll capability.

    Rotate the scene (rotate the camera around the point cloud). Camera position changes, target is fixed.

    Shift + Left or Right — Camera orbits horizontally around the point cloud. (Scene appears to stand still as camera moves externally around it horizontally.)

    Shift + Up or Down — Camera orbits vertically around the point cloud. (Scene appears to stand still as camera moves externally around it vertically.)

    Animation displaying the view with the camera rotating around a point capability.

    Zoom in or out.

    z — Zoom in

    x — Zoom out

    Animation displaying the view in a scene using the zoom capability.

    Look at a view plane.

    1 — XY

    2 — YX

    3 — XZ

    4 — ZX

    5 — YZ

    6 — ZY

    Camera positioned in the selected plane with a line of sight to the center of the plot.

    Animation displaying the view in a scene using view plane capability.

    Switch between rotate and pan.Spacebar — Press and hold the spacebar to switch the interaction to pan. Release the spacebar to switch back to rotate.

    Animation displaying the view in a scene using the ability to switch between rotate and pan.

    Rotate in X-, Y-, and Z- dimensions.T — Adds rotate interaction in the third dimension.

    Animation displaying the view in a scene using the capability to rotate between the X-, Y-, and Z- dimensions.

See Also

Apps

Objects

Related Topics