SpacecurveGraph1
Interactive Graph of a Parametric Curve in 3D Space
This PG code shows how to make an interactive graph of a parametric curve in 3D space that is displayed using the LiveGraphics3D Java applet.
 File location in OPL: FortLewis/Authoring/Templates/Parametric/SpacecurveGraph1/SpacecurveGraph1.pg
PG problem file  Explanation 

Problem tagging: 

DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "LiveGraphicsParametricCurve3D.pl", ); TEXT(beginproblem()); 
Initialization:
We need to include the macro file 
Context("Numeric"); Context()>variables>are(x=>"Real",y=>"Real",z=>"Real",t=>"Real"); $plot = ParametricCurve3D( Fx => Formula("t*cos(t)"), Fy => Formula("t*sin(t)"), Fz => Formula("t"), tvar => "t", tmin => 0, tmax => 10, tsamples => 50, axesframed => 1, xaxislabel => "X", yaxislabel => "Y", zaxislabel => "Z", outputtype => 4, ); 
Setup:
We generate a string of plot data using
Setting 
Context()>texStrings; BEGIN_TEXT \{ Live3Ddata( $plot, image => "spiral.png", size => [400,400], tex_size => 600, tex_center => 1, scale => 1.1, ); \} END_TEXT Context()>normalStrings; 
Main Text:
To display the string of plot data
After you construct the graph you like, don't forget to take a screen shot of it and make an image file such as 
$showPartialCorrectAnswers = 1; 
Answer Evaluation: 
Context()>texStrings; BEGIN_SOLUTION Solution explanation goes here. END_SOLUTION Context()>normalStrings; COMMENT('MathObject version.'); ENDDOCUMENT(); 
Solution: 