[vtkusers] vtkPlane functions

[Mitchell, John A]

I'm wondering if the following functions on vtkPlane could promise not to change the input data by making them 'const'?

static int      IntersectWithLine (double p1[3], double p2[3], double n[3], double p0[3], double &t, double x[3])
int     IntersectWithLine (double p1[3], double p2[3], double &t, double x[3])

PROPOSED ADDITIONS:
static int      IntersectWithLine (const double p1[3], const double p2[3], const double n[3], const double p0[3], double &t, double x[3])
int     IntersectWithLine (const double p1[3], const double p2[3], double &t, double x[3])


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