bezier

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Convert a quadratic bezier to a cubic one

What is the algorithm to co开发者_运维问答nvert a quadratic bezier (with 3 points) to a cubic one (with 4 points)?From https://fontforge.org/docs/techref/bezier.html#converting-truetype-to-postscript:[详细]

2023-01-05 06:15 分类：问答
Thick Bezier Curves in OpenGL

I am writing a program in java using the jogl opengl bindings. I need to create a bezier curve that varies in thickness along the curve. So far I\'ve only managed a thin bezier curve of single points.[详细]

2023-01-04 05:30 分类：问答
Circle approximations using Bezier curves

I have 2 questions about bezier开发者_运维技巧 curves, and using them to approximate portions of circles.[详细]

2023-01-04 04:42 分类：问答
Reverse engineering a bezier curve

Given a few sample points on a bézier curve, is it possible to work out the set of possible curves these points may lie on?[详细]

2023-01-03 02:59 分类：问答
Drawing path by Bezier curves

I have a task - draw smooth curve input: set of points (they added in realtime) current solution: I use each 4 points to draw qubic Bezier curve (1 - strart, 2 and 3rd - control points, 4- end). End[详细]

2023-01-02 12:48 分类：问答
OpenGL: How to draw Bezier curve of degree higher then 8?

I am trying to draw high order Bezier Curve using OpenGL evaluators: glMap1f(GL_MAP1_VERTEX_3, 0.0, 1.0, 3, 30, &points[0][0]);[详细]

2022-12-28 14:38 分类：问答
Closest point on a cubic Bezier curve?

How can I find the point B(t) along a cubic Bezier curve that is closest to an arbitrary point P in the开发者_运维百科 plane?I\'ve written some quick-and-dirty code that estimates this for Bézier cur[详细]

2022-12-28 12:21 分类：问答
What is the maximum distance from an anchor point to a bezier curve?

Given a cubic bezier curve P0,P1,P2,P3 with the following properties: • Both P1 and P2 are on the same side of the line formed by P0 and P3.[详细]

2022-12-28 08:25 分类：问答
How to convert closed bezier curves to Bitmaps?

I need an algorithm to convert a closed bezier curve (perhaps self-crossing) to a binary bitmap: 0 for inside pixels and 1 for outside. I\'m writing a code that needs to implement some operations on b[详细]

2022-12-26 16:49 分类：问答
rendering an antialiased spiral

I have looked at this example using php and GD to piecewise-render a spiral with small arcs. What I would like to do is render an approximation to a spiral that is as mathematically accurate as possib[详细]

2022-12-26 00:18 分类：问答