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Home » Visual Basic » Article
Maths Behind The Bezier Curve in Visual Basic
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| Article by: | Thaha Hussain (10/12/2002) |
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| Sponsored by: | FindMyHosting - Web Hosting Search |
| Summary: | Explains how we can draw a Bezier Curve! The maths behind a Cubic Bezier.Very simple. No API's used. Key words : paint brush, draw, curve, graphics, picture, technique, smooth curve |
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| Viewed: 25585 times |
Rating (57 votes): |
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4.1 out of 5 |
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Maths Behind The Bezier Curve in Visual Basic
Explains how we can draw a Bezier Curve! The maths behind a Cubic Bezier.Very simple. No API's used.
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View highlighted Comments
 User Comments on 'Maths Behind The Bezier Curve in Visual Basic'
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Posted by :
 Archive Import (mohammad) at 04:40 on Tuesday, November 05, 2002
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hi.
the Xpoint function is not valid!!!!
if you could explain me how can i use or create it.
thanks.
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Posted by :
Archive Import (Smidge204) at 18:02 on Thursday, December 26, 2002
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According to the code snippet, XPoint() is an Integer array of 3 elements. Looks like somebody didn't copy all the code or didn't put it into their project properly :)
Works just fine for me. Great stuff!
=Smidge=
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Posted by :
Archive Import (Peter Goodier) at 00:10 on Friday, December 27, 2002
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How do you construct a BEZIER curve (spline), from more than 4 points
eg. 50 "X , Y" co-ordinance points.
Kind Regards
Peter Goodier
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Posted by :
Archive Import (Thaha Hussain (Author)) at 03:56 on Tuesday, February 18, 2003
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Pls copy and paste the code to your general declaration section. It will work.
Bezier curve is made always with 4 control points.
Pls see another wonderful snippet.
http://www.planetsourcecode.com/vb/scripts/ShowCodeAsText.asp?txtCodeId=1871&lngWId=1
Best,
Thaha Hussain
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Posted by :
Archive Import (Paul) at 10:42 on Thursday, February 27, 2003
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Thaha - excellent piece of code. Very impressive.
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Posted by :
Archive Import (Shu Yih) at 22:27 on Wednesday, March 19, 2003
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how could i trace the action of user clicking on the curve?your code trace the action click on the control point only. Thanks
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Posted by :
Archive Import (Raja Kumar) at 00:34 on Tuesday, April 15, 2003
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I saw your curve program for my ref. but i need somthing like a ecg reading.
I have time and thickness values from that i want to write a continues drawing line a ecg scan reading graph.
can you help me.
with advance thanks
Raja Kumar D.S
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Posted by :
Archive Import (Andrés Vilegas R) at 14:17 on Wednesday, April 23, 2003
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The code is excellent!!. Except don´t function for values that don't fit in the range of a Interger. I Changed the line: Dim XPoint(3) As Integer, YPoint(3) As Integer to this: Dim XPoint(3) As Long, YPoint(3) As Long, and the code runs very well.
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Posted by :
Archive Import (Thaha Hussain) at 10:55 on Wednesday, June 04, 2003
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Dear Readers,
Thanx.
If you have queries, please contact me thro' my mail id.
Regs,
Thaha Hussain
thaha_ko(a)yahoo.com
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Posted by :
Archive Import (mohamed) at 13:57 on Sunday, June 08, 2003
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i think it's better to deal with bezire curve by more better graphics representation
to enhance ur program
thnx and good luck
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Posted by :
Archive Import (sudha) at 03:32 on Monday, June 30, 2003
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the taask is just ok! this movement is every one knows.
You will find try to move the line without selecting end or starting point user can move mid point of the line.
You will find the solution means that is powerful
ok!
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Posted by :
Archive Import (enix) at 20:04 on Tuesday, July 01, 2003
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yes, this was exacly the kind of theory and implementation i was looking for! thank you Thaha, codetoad and google :)
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Posted by :
Archive Import (Thaha Hussain(Author)) at 10:56 on Wednesday, July 16, 2003
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As Enix said, my aim was to teach the simple maths behind Bezier Curve. Enhancements.. upto you!
Regards,
Thaha Hussain
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Posted by :
Archive Import (Senthil) at 08:56 on Monday, August 04, 2003
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I saw ur code for bezier curve. I got this concept from other website. But now I try to create a tapered bezier curve.It is done by using drawwidth change for each points. but it is not smoothly. If u know any option for smooth plz send it to me.
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Posted by :
Archive Import (Abdul) at 12:41 on Wednesday, September 03, 2003
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Is this code or anything similar to it avaiable in C++?
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Posted by :
Archive Import (victor ) at 19:56 on Friday, September 05, 2003
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Sorry for my bad english. I want to make a question, is it posible to create a graph like wich are done with Excel, inside a form in visual Basic?. How can I do that?
Thanks for your help
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Posted by :
 JAD at 08:51 on Thursday, March 23, 2006
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hello all , my best friend is in deep trouble , coz we couldnt figure out how to code this one , the submission is tomorrow ...
here's the link to the pdf
http://www.geocities.com/jad_4ev3r/Semester_2_Coursework.pdf
it's a Bezier curve , if anyone can do it tonight , we'll be very very thankful ..
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Posted by :
JAD at 09:17 on Thursday, March 23, 2006
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oh forget to say that it has to be done in C++ , here's the download for the program that has to be done in it
http://www.salfordsoftware.co.uk/software/downloads/compilers.html
thanks again
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Posted by :
zagros at 03:50 on Tuesday, November 07, 2006
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hi
please help me for drawing bezier curve with four points which all located on bezier curve.(Drawing a Bezier curve through four data point)
regards
zag
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Posted by :
mjane at 13:08 on Tuesday, February 12, 2008
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I'm trying to make a bezier curve display on a chart in Access...any suggestions on how to change the code to pass the points from a table?
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