3D Hover

This page describes the 3D Hover behavior and preferences.

The 3D Hover (“yellow puck”) represents the on-the-fly detected 3D surface around the position of the mouse pointer. The hover is based on screen pixels within the given query “Search Radius” for which a coordinate is known. A pixel coordinate can be derived from any visible dataset object from the point cloud, vector, or image resources. Overlays are not taken into account.

If given the Measure Technique and 3D Hover Query settings, no 3D surface can be detected around the mouse pointer position as seen from the current 3D viewpoint, no hover will be displayed no 3D coordinate measurement will be possible.

There are several measurement techniques available in Orbit which can be used depending on accuracy requirements and the data availability and quality, for more information see Measure Techniques.

The 3D Hover may use a pointcloud query around the current mouse pointer position to select all pixels for which a 3D coordinate is known.

• Search Radius: minimum and maximum search radius in pixels.
• Min # points: the minimum amount of detected points to form the hover.
• Min distance: minimum distance between the hover and the viewer focus position. In the image viewer, this is equal to the photo position. In the 3D View, this is equal to the position of the viewer focus.
• Cluster gap size: minimum distance between two points in order not to be considered part of the same cluster.

If there aren't enough Pixel Coordinates (Min # points) within the defined Search Radius due to the above set conditions, no 3D Hover can be calculated, so no point cloud measurements will be possible.

Set the appearance of the 3D Hover

• Show hover
• Show used points
• Show search radius
• Show plane inclination as outline color
• Show point deviation as the fill color
• Transparency