Axisymmetric figure shaping device for generating curvilinear fi

Details Axisymmetric figure shaping device for generating curvilinear fi Axisymmetric figure shaping device for generating curvilinear fi

1997-11-17

1999-11-23

Hoff, Marc S.

Data processing: measuring, calibrating, or testing

Measurement system

Dimensional determination

382224, G06K 900

Patent

active

059917024

ABSTRACT:
An axisymmetric figure shaping device including an input unit for receiving input of a figure formed including a curve and a data processing unit for shaping an input figure to be precisely symmetric with respect to a predetermined axis of symmetry, the data processing unit including a characteristic point calculating unit for calculating, from a coordinate point sequence of a figure input through the input unit, coordinates of each vertex, and maximal points and minimal points in the horizontal and the vertical directions of the input figure and taking them as characteristic points of the input figure, a candidate axis of symmetry calculating unit for calculating a candidate axis of symmetry for use in the decision of symmetry based on calculated characteristic points, a symmetry decision unit for deciding about symmetry of an input figure with respect to a calculated candidate axis of symmetry, and a shaping unit for shaping, when a decision is made that an input figure has symmetry with respect to a candidate axis of symmetry, the input figure into a form precisely axisymmetric with respect to the candidate axis of symmetry.

REFERENCES:
patent: 4183013 (1980-01-01), Agrawala et al.
patent: 4797842 (1989-01-01), Nackman et al.
patent: 4896279 (1990-01-01), Yoshida
patent: 5790700 (1998-08-01), Saito
patent: 5889892 (1999-03-01), Saito

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