How to Open Point Cloud Data

  1. Click Open button on Top Menu.
  2. Select Point Cloud Data you want.

    open dialog

How to Manipulate Camera View

To manipulate the view, click one of the menu buttons listed below and follow the instructions below.

No actions.
Drag your mouse cursor to rotate the view (the rotation axis is always at the center of point cloud data).
Drag your mouse cursor horizontally to zoom in/out.
Drag your mouse cursor to move the view.

You can also reset the view by clicking one of the menu buttons below.

Reset the camera view to the top view
Reset the camera view to the front view
Reset the camera view to the side view

How to Setup FindSurface Parameters

You can skip this section if you loaded one of the preset data that our server provides. The parameters are automatically set to appropriate values. Before running the FindSurface Algorithm, you have to set the algorithm parameters.

  1. Click Parameters button on top menu.

    parameter dialog

  2. After adjusting the parameter values, then click [ Apply ] button.

    Accuracy Point measurement accuracy
    Mean Distance Mean distance between neighboring points
    Touch Radius Radius of seed region (also, it means minimum target object size)
    Probe Radius Point picking sensitivity (radius in pixels)
    Radial Expansion Level of segmentation referenced to the direction of surface normal
    Lateral Extension Level of region growing in lateral direction (for plane, cylinder, cone)

    Note: Parameter values are dependent on a measurement unit of point cloud data. For example, if a measurement unit is meter and measurement accuracy is less than 5 mm, an appropriate value of Accuracy may be 0.005. If a measurement unit is millimeter and measurement accuracy is less than 3 mm, an appropriate value of Accuracy may be 3.

    Note: Probe radius affects only point picking. For example, if the radius is set to 4, the topmost (z-order) point among points having 4 a distance of pixels from your mouse cursor.

How to Run FindSurface

  1. Click the button of surface types to find on Top Menu.

    Plane Sphere Cylinder Cone Torus

  2. Click the ROI ( Region of Interest ) point on screen.

  3. Wait for the server response.

  4. If FindSurface succeeds, you can see the mesh and inliers points on screen as a result.

    Otherwise, [ Not Found ] dialog will pop up.