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Ulrik wrote:
> Hi!
>
> I'm just wondering if it's possible to use POV to help me draw 2D sin curves
> or if anyone here knows of such a program. I don't want a plotter program
> though.
It could probably be done much better
(E.g.. better scaling of the axes and showing them),
but below is one possible solution.
I can try to explain if you need more help.
Tor Olav
--
mailto:tor### [at] hotmail com
http://www.crosswinds.net/~tok/tokrays.html
#version 3.1;
#include "colors.inc"
camera {
location -16*z
look_at <0, 0, 0>
}
light_source { <5000, 1000, -20000> color White }
plane {
-z, 0
pigment {
checker color White color White + Blue
}
}
#macro PlotFunction(MinAngle, MaxAngle, NrOfSteps,
SphereRadius, AngleAxisLength)
#local RangeSize = MaxAngle - MinAngle;
#local StepSize = RangeSize/NrOfSteps;
#local Angle = MinAngle;
#while (Angle < MaxAngle)
#local xPos = Angle*AngleAxisLength/RangeSize;
#local yPos = MyFunction(radians(Angle));
sphere { <xPos, yPos, 0>, SphereRadius }
#local Angle = Angle + StepSize;
#end // while
#end // macro PlotFunction
#macro MyFunction(Angle)
4*sin(Angle)
#end // MyFunction
union {
PlotFunction(-360, 360, 200, 0.1, 20)
pigment { color Red }
}
/*
#macro MyFunction(Angle)
(4.2*sin(2*Angle) + 1.8*cos(8*Angle))
#end // MyFunction
union {
PlotFunction(-180, 360, 800, 0.1, 15)
pigment { color Green }
}
*/
sphere { <0, 0, 0>, 0.2 pigment { color 2*Yellow } }
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