marcel@tnoibbc.UUCP (Marcel Boender) (02/16/89)
I am looking for some algorithms and specially some source codes (preferably
in C) for creating B-spline surfaces.
Given a set of 3d-coordinates, there weights and a certain degree of detail
it should be able to fit in a corresponding B-spline surface.
I am also interested in bezier surfaces.
Can anyone supply me with references, algorithms and better yet source code(s).
Please let me know by e-mail.
--
Marcel Boender : TNO - IBBC USENET : marcel@tnoibbc
: PO-box 49 UUCP : ..!hp4nl!tnoibbc!marcel
: 2600 AA Delft FAX : +31 15 620304
: the Netherlands PHONE : +31 15 606412jaysun@donald.uucp (Jay) (02/18/89)
In article <1050@tnoibbc.UUCP> marcel@tnoibbc.UUCP (Marcel Boender) writes: >I am looking for some algorithms and specially some source codes (preferably >in C) for creating B-spline surfaces. >Given a set of 3d-coordinates, there weights and a certain degree of detail >it should be able to fit in a corresponding B-spline surface. >I am also interested in bezier surfaces. >Can anyone supply me with references, algorithms and better yet source code(s). >Please let me know by e-mail. >-- >Marcel Boender : TNO - IBBC USENET : marcel@tnoibbc I am interested in obtaining the same thing. If anyone has any info will you please let me know also? My E-mail bounced to Marcel so thats why I am posting. Thanks, Jay Williamson jaysun@eng.clemson.edu Engineering Computer Operations
flynn@pixel.cps.msu.edu (Patrick J. Flynn) (02/18/89)
In article <4475@hubcap.UUCP> jaysun@donald.UUCP (Jay) writes: >In article <1050@tnoibbc.UUCP> marcel@tnoibbc.UUCP (Marcel Boender) writes: >>I am looking for some algorithms and specially some source codes (preferably >>in C) for creating B-spline surfaces. >>Can anyone supply me with references, algorithms and better yet source code(s). >I am interested in obtaining the same thing. If anyone has any info >will you please let me know also? My E-mail bounced to Marcel so thats >why I am posting. Here are a couple. Dierckx' article contains FORTRAN source code. @article{hayes74, AUTHOR="J. G. Hayes and J. Halliday", TITLE="{The Least-squares Fitting of Cubic Spline Surfaces to General Data Sets}", JOURNAL="J. Inst. Maths Applics", VOLUME="14", PAGES="89-103", YEAR="1974" } @article{dierckx77, AUTHOR="P. Dierckx", TITLE="{An Algorithm for least-squares fitting of cubic spline surfaces to functions on a rectilinear mesh over a rectangle}", JOURNAL="J. Comput. Appl. Math.", VOLUME="3", NUMBER="2", PAGES="113-129", YEAR="1977" } Cheers Pat -- Pat Flynn, CS, Mich. State U. | "What kind of chump do you take me for?" -Nick flynn@cps.msu.edu | "First Class!" -Rocky Rococo (517) 353-4638 |
usenet@cps3xx.UUCP (Usenet file owner) (02/18/89)
>In article <1050@tnoibbc.UUCP> marcel@tnoibbc.UUCP (Marcel Boender) writes: >>I am looking for some algorithms and specially some source codes (preferably >>in C) for creating B-spline surfaces. >>I am also interested in bezier surfaces. >>Can anyone supply me with references, algorithms and better yet source code(s). >I am interested in obtaining the same thing. If anyone has any info >will you please let me know also? My E-mail bounced to Marcel so thats >why I am posting. > I can't send you any source code that generates 3d surface patches but I can give you the names of three good references: 1) Rogers & Adams, Mathematical Elements for Computer Graphics, MaGraw-Hill, New York, 1976. (Good basics but 3d surface mathematics is hard to follow.) 2) Foley & Van Dam, Fundimentals of Interactive Computer Graphics, Addison-Wesley, Reading Massachusetts, 1982. 3) Mortenson M.E., Geometric Modeling, John Wiley & Sons, New York, 1985. (Good explanation of surfaces and splines, picks up where the other two leave off). Good luck.