Renders the Groebner fan of an ideal. The output is put into an xfig file if a filename is provided. If no filename is provided then macaulay uses fig2dev to make a png which is displayed by the operating system (see
show).
i1 : R = QQ[symbol a..symbol f];
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i2 : I = pfaffians(4, genericSkewMatrix(R,4))
o2 = ideal(c*d - b*e + a*f)
o2 : Ideal of R
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i3 : null -- render(I)
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i4 : null -- render("pfaffgfan.fig", I)
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To run the examples above, ommit the null -- . The first command will display the Groebner fan of I while the second writes the image to file.