Short: Spline, Bezier and Hemite SDL examples
Author: Tyler Montbriand, AmigaOS 4.0 compile by Spot / Up Rough
Uploader: Varthall / Up Rough
Type: dev/src
Architecture: ppc-amigaos >= 4.0.5
curve_test by Tyler Montbriand, 2005
tsm()accesscomm.ca http://burningsmell.org
curve_test is a set of 3 programs to demonstrate 3 different kind of
third-order parametric curves: Hemite curve segments, Bezier curve
segments, and Splines. Hemite curves are defined by two endpoints and
two vectors, Bezier curves are defined by four points, and Spline curves
are defined by 4+n points. In particular, my program draws *closed*
spline curves.
All 3 programs are operated the same way; the 0-9 keys select a
particular point. x or shift-x increases or decreases the X coordinate
of the selected point or vector, y or shift-y increases or decreases the
Y coordinate of the selected point or vector, ESC quits. You will see
the results of the modified curve redrawn in realtime.
It's probably stupidly slow and inefficient both in design and
implimentation, but I hope the idea at least is fairly clear.
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This makefile was a bit odd, so i compiled the examples by hand using
the following lines. The link phase went wrong, as the libs ended up
at the wrong place.
gcc hemite.c matrix.o midpoint_line.o -o spline -L/SDK/Local/newlib/lib -lGL
-lGLU -lSDL -lauto -lpthread -lm -lm -lstdc++
gcc spline.c matrix.o midpoint_line.o -o spline -L/SDK/Local/newlib/lib -lGL
-lGLU -lSDL -lauto -lpthread -lm -lm -lstdc++
gcc hemite.c matrix.o midpoint_line.o -o hemite -L/SDK/Local/newlib/lib -lGL
-lGLU -lSDL -lauto -lpthread -lm -lm -lstdc++
gcc bezier.c matrix.o midpoint_line.o -o bezier -L/SDK/Local/newlib/lib -lGL
-lGLU -lSDL -lauto -lpthread -lm -lm -lstdc++
strip bezier
strip spline
strip hemite
.. Spot / Up Rough 2006