nElement

Elements refer to data consisting of points (vertices), polygons and color images ∗1.

When data acquired by the VIVID (VI) series digitizer is loaded to this software, it will always be displayed as a polygon mesh element. In addition, use of the Edit – Define command allows you to define a part of an existing element as a new element. Names of elements loaded to this software and those that are newly defined are displayed in the element list located at the right edge of the screen.

∗1 Some polygon mesh elements do not have color images.

For instance, a polygon mesh element created by the Edit – Define command without “Copy image( s)” selected does not have color images.

nScene

A scene refers to information such as currently opened element, its view information (zoom setting, viewing direc- tion, Shades/Lines display mode), camera ∗2, point of interest ∗3 and light ∗4 . When a scene is saved using the File – Save – Scene command, all this information will be saved.

∗2 The camera indicates direction in which the image displayed in a “Isometric” or “Perspective” element view window is viewed. (The image displayed in “Isometric” or “Perspective” element view window is the image of the object viewed from the camera position.)

The camera position can be moved using the View – Camera – Settings or View – Orbit command.

∗3 The point of interest shows the direction in which the camera views the image. By moving the point of interest using the View – Camera – Settings command, the viewing direction of the camera can be changed.

∗4 The light provides shadow for “Shades” element view windows, and two kinds of light are available: point light source and environmental light.

With the default settings, the point light source is located behind and to the right of the camera. Position of the point light can be moved by the View – Move Light command.

In the SHADING display mode, the intensity of the environmental light, color of the light and material of elements (highlight, object’s color) are determined automatically.

nCamera Data File

A camera data file contains data (i.e. the data before conversion to element data) acquired by the digitizer. It is possible to set the resolution for the range image, fill holes (i.e., areas where no data exists) with points automatically and merge more than one data acquired at different angles using the optional turntable.

nElement File

An element file contains data for a single element.

nScene File

A scene file contains data for a scene.

nDynamic Range Expansion Function

This function expands the measurement range when the VIVID 9i (VI-9i) or VIVID 910 (VI-910) performs scanning. The laser beam of three different intensity levels (high, middle, low) is emitted to the object, and the rays reflected from the object are captured by the CCD. Among the reflected rays, the data within the CCD’s measurement range are used to expand the entire measurement range.

Chapter 3

Explanation of Technical Terms

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