All Questions
Tagged with beziers mathematics
10
questions
0
votes
1
answer
143
views
Inconsistent Speed Of A Projectile Traveling On A Bezier Curve
What I'm doing:
I'm moving a projectile to it's target along a Bézier curve with one control point.
The projectile moves from Transform A to ...
- 192
1
vote
0
answers
120
views
how can I normalize the speed of a polygon moving over a series of connected quadratic bezier curves with varying lengths?
I am generating a bunch of quadratic curves that are connected together, creating an array of curves, and a function which returns the position on the curve for a given time.
...
- 209
8
votes
1
answer
377
views
How to move a portion of bezier/spline curve along its complete bezier/spline curve?
Based on the image below, I have a curve (orange) which is a bezier sub-curve of an original curve (longer black curve). The original curve consists of a number of cubic bezier curves joined together. ...
- 81
0
votes
1
answer
2k
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How to calculate normal vector of a Bézier curve?
How I can calculate the normal vector for two dimensional Bézier curve?
(I have the control points of the curve in the x y plane)
- 1
4
votes
2
answers
2k
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Controlling roll rotation when travelling along bezier curves
I am currently working on a curve implementation for use in Unity which includes an editor:
The aim is to get an object to follow the path represented by the curve at a constant velocity. Currently ...
- 584
2
votes
2
answers
1k
views
Bezier curve not drawn correctly
I'm trying to draw a bezier curve using 3 points. If I use the quadratic form:
I get this result:
And I believe it's correct.
Now since I need to draw it with a variable number of points, I'm ...
- 479
6
votes
2
answers
322
views
How do you calculate if a line is facing a curve?
Given the 2 points describing a line segment, and the 3 points describing a quadratic bezier curve, how do you calculate if the line is facing towards or away from the curve?
The line has a fixed ...
- 2,761
15
votes
4
answers
1k
views
How do you calculate the nearest point on 2 curves?
Given the points of a line and a quadratic bezier curve, how do you calculate their nearest point? .... Similarly, given the points of 2 curves, how do you get the nearest point?
- 2,761
10
votes
2
answers
389
views
How do you calculate if 2 lines are facing toward or away?
Given the 4 points describing 2 line segments, how do you calculate if line A is towards or away from line B?
The 2 lines have a fixed length, and can be measured as distance from x1/y1 to x2/y2.
- 2,761
27
votes
4
answers
29k
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Bezier curve arc length
See also: same question on Math.SE
How can I find the arclength of a Bezier curve? For example, a linear Bezier curve has the length:
...
- 409