## Quadratic T-B Spline Interpolation Curve Based on Adjusted Curvature

**TAO Yu-qin1,CHEN Su-gen2 (1.Ma'anshan Teacher's school,Ma'anshan,243000;2.Department of Mathematics,Anqing Teachers College,Anqing 246133,China)**

A method to construct a quadratic T-B spline curve through data points is given.If the relative curvature of a certain curve on the first control point and the direction angle of the initial point's tangent vector is given,we can get the whole curve by using the property of the endpoint of quadratic T-B spline curve.The curve can be adjusted through the relative curvature or the direction angle of the initial point's tangent vector,in which some examples show that the method is useful for curve design.

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