三次非均匀B样条曲线,根据已知点画出一次,二次,三次的B样条曲线-three non-uniform B-spline curves, according to a known point draw, second, third B-spline curves 下载
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在CAD中,用分段三次B样条来表达自由曲线是很理想的,为此,采用三次B样条曲线来拟合这条折线. ... 其中, 3d.gif (1661 bytes) ,确定了系数a、b、c,相应地就确定了拟合函数. 3)确定型值点求出拟合函数后,取点Pk((1/2)l,yp)作为型值点. ... -in CAD, and cubic B-spline curves to the freedom of expression would be the ideal, for cubic B-spline curve fitting of the dogleg. them .... 3d.gif (1661 bytes), to determine the coefficients a, b, c, corresponding to determine a fitting function. 3) to determine the value was calculated - fitting function, collocation Pk ((1 / 2) l, yp) as the data points. ... 下载
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直线段的裁剪和绘制,1、自由曲线包括:二次、三次Bezier曲线,二次、三次均匀B样条曲线; 2、Bezier曲线的实现算法要求选用细分算法; 3、均匀B样条曲线过控制多边形的首末顶点; 4、利用B样条曲线的局部控制性来动态修改曲线形状; 5、界面设计友好、几何直观。 裁剪算法选用Cohen-Sutherland算法; -straight of the cutting and painting, a free curve include : second, third Bezier curves, second, Third uniform B-spline curves; 2, Bezier curve algorithm selection requirements subdivision algorithm; 3. Uniform B-spline curve control over the end of the first polygon vertices; 4. B-spline curves of local control to dynamically change curve shape; 5, friendly interface design, visual geometry. Cutting Algorithm Selection Cohen-Sutherland algorithm; 下载
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丰富的图形类型(直线,平行四边形,矩形,多边形,圆角矩形,圆,椭圆,二次均匀B样条曲线,三次参数样条曲线,贝齐埃曲线)-rich graphics types (linear, parallelogram, rectangle, polygon, rectangle fillet, round, oval, Quadratic B-spline curves, parametric cubic spline curve, gemfibrozil Egypt curve) 下载
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丰富的图形类型(直线,平行四边形,矩形,多边形,圆角矩形,圆,椭圆,二次均匀B样条曲线,三次参数样条曲线,贝齐埃曲线) 丰富的图形操作(属性设置,拖动,放大/缩小,删除,拷贝,旋转,图形切割,图形填充,编辑等)软件通用功能(撤消/恢复,打印,文件操作)架构较好,欢迎试用!-rich graphics types (linear, parallelogram, rectangle, polygon, rounded rectangle, circle, oval, secondary uniform B-spline curves, the three parameters spline curves, curve gemfibrozil Egypt) rich graphics operations (attribute settings, drag and enlarge / reduce, to delete, copy, rotate, graphics cutting, filling graphics, editing, etc.) common software functions (withdrawal / recovery, printing, and file manipulation) architecture better, welcomed the trial! 下载
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生成三次均匀B样条的曲线,可交互的改变关键点的位置,生成新的B样条-Third Generation uniform B-spline curves, interactive key change the location, the new generation of B-Spline 下载
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二次,三次和N次Bezier曲线 二次,三次B样条曲线,用VB编的,编译通过,执行无错误, 有详细注释.-second, third and N-Bezier curve twice cubic B-spline curves, VB series, compiled by the implementation of strict and detailed notes. 下载
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n次贝塞尔曲线及三次b样条曲线的绘制,使用自己编写的curve类,实现曲线上点坐标的计算与绘制,曲线点坐标的计算使用递归算法。点击左键设定控制点,之后点击右件绘制曲线。-n Bessel curve and three b-spline curve mapping, prepared to use their own type of curve, curve coordinates of the point on the calculation and drawing, curve coordinates of the points calculated using recursive algorithm. Click on the button to set control points, followed by right clicking on Drawing curve. 下载
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本程序利用三次样条差值函数编程得到顺滑的曲线.- 下载
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一个很好的画三次样条曲线的程序源码-a good painting cubic spline curve procedures FOSS 下载
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