Cubic Bezier Curves / Get Y For Given X
Nov 21, 2011
I have a cubic bezier curve where the first and last points are given (namely P0(0,0) and P3(1,1)).The other two points are defined like this: cubic-bezier(0.25, 0.1, 0.25, 1.0) (X1, Y1, X2, Y2, also those values must not be smaller or larger than 0 or 1, respectively)Now what would I have to do to get the Y coordinate for a given X, assuming there's only one? (I know that under certain circumstances there can be multiple values, but let's just put them aside. I'm not doing rocket science over here, I just want to be able to get Y multiple times per second to do transitions)I managed to dig up this: y coordinate for a given x cubic bezier, but I don't understand what xTarget stands for., also this is no homework whatsoever, I'm just a bit pissed at the fact that there's no comprehensible stuff about cubic bezier curves on the internet.
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Jan 24, 2012
i have two bezier curves placed at a distance apart in space.curve 1 has control points A0, A1,A2, A3. A0 and A3 lie on curve and are its end points Curve 2 has control points C0,C1, C2, C3 . C0 and C3 lie on curve.and are its end points
i want to join the two curves A and C with an intermediate bezier curve B. the intermediate Curve B has control points A3 and C0 which lie on the curve and are its end points. the intermediate control points B1 and B2 are unknown to me. also the joining should be smooth enough. please help as to how to proceed. have read alot about beziers but dont know how to do this.
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Jan 16, 2009
i have two bezier curves placed at a distance apart in space.curve 1 has control points A0, A1,A2, A3. A0 and A3 lie on curve and are its end pointsCurve 2 has control points C0,C1, C2, C3 . C0 and C3 lie on curve.and are its end pointsi want to join the two curves A and C with an intermediate bezier curve B. the intermediate Curve B has control points A3 and C0 which lie on the curve and are its end points.
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Jun 5, 2009
I would like to get the lines or curves from a text. I was looking and I found ExtTextOutW or GetGlyphOutline.
Do you know where is a sample? I found some of vb6 and vc++ but I can not do running.
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Aug 23, 2009
I did not really want to create as what i am showing in the second picture. What i actually wanted is to draw a curved (maybe a porsche, ferarri , or a lamboghini). Can i know how to draw curves along the edges ?
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May 4, 2010
I'm working on a program that will generate and graph random parabolas with integer vertices. I've got a 360n x360 pictureBox set up and used a for-next loop to draw in a grid consisting of 15 x 15 squares. when I plot the generated parabola I get some unwanted lines/curves. I think this is due to the fact that the (0, 0) point of the picturebox is in the upper left corner and the (0, 0) of my grid is in the center of the picturebox. Is there a way to "move" or "set" the pen position to the first point I wish to plot for my parabola without leaving a mark or trail? Or is there something else I can do? I've tried drawing an invisible line before my g.DrawCurve(plotPen point) but when the DrawCurve is executed I still get an extra line.
Private Sub cmdParabola_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdParabola.Click
Dim x, xPlot, y, yPlot As Single
[Code].....
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Jul 25, 2010
I have followed a tutorial from Zedgraph's wiki but I still seem to be having issues. When I run the code below, only the 3 curves on the Y Axis plot. I know the datasource is correct from which the 4 curves on the second Y axis are being created, because I have checked the table after creation. For some reason, however, the curves do not show up and the Y2 Axis does not change its scale to reflect any new curves. Does anyone see what I'm missing here?
[Code]...
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