TEST METHOD AND DATA PROCESSING FOR 3D CIRCULAR OBJECT
Pan Guorong 1,2) ; Gu Chuan 1) ; and Shi Guigang 1)
1)Department of Surveying and Geo-Informatics,Tongji University, Shanghai 2000922)Key Laboratory of Modern Engineering Surveying of SBSM, Shanghai 200092
Abstract The difference between the actual 3D circular object and the designed one manifests itself in two aspects: differences of location and shape. The difference of location can be described by use of the coordinate of the circle center and the normal direction, while the difference of shape can be described using flatness, circularity and radius. The data acquisition and data processing methods of 3D circular object are presented. The data analysis of 3D circular object is divided into 3 steps as 3D plane fitting, 3D plane rotation and flat circle fitting. An example proves that this method is practical.
Key words ：
3D circle
deformation monitoring
plane fitness
coordinate rotation
flatness and circularity
Received: 01 January 1900
Corresponding Authors:
Pan Guorong
Cite this article:
Pan Guorong,Gu Chuan ,and Shi Guigang . TEST METHOD AND DATA PROCESSING FOR 3D CIRCULAR OBJECT[J]. , 2007, 27(3): 28-30.
Pan Guorong,Gu Chuan ,and Shi Guigang . TEST METHOD AND DATA PROCESSING FOR 3D CIRCULAR OBJECT[J]. jgg, 2007, 27(3): 28-30.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2007/V27/I3/28
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