obj = GCONIC/number list
Creates a general conic by specifying the six coefficient values which are used in the general quadratic conic formula to calculate the conic:
AX2+BXY+CY2+DX+EY+F=0
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Parameter |
Description |
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number list |
The number list must contain six fields of real numbers. The numbers may previously defined variables. |
Creating a general conic by specifying the six numerical coefficients to be used in the quadratic general conic formula to calculate the conic.
GC1 is a circle with a radius of 1 and the center at coordinates 0,0,0.
GC2 is a parabola with its vertex at -1.1875,.6875,0 and a focal length of .3536. The maximum and minimum "Y" distances, in the coordinate system of the parabola, are 1 and -1 respectively.
Declaration
ENTITY/GC1,GC2
NUMBER/COEF(6)
DATA/COEF,1,2,1,3,-1,4
Conic Definition
GC1=GCONIC/1,0,1,0,0,-1
GC2=GCONIC/COEF
General Conic Using Six Coefficients