Inheritance: AppKit.NSView
 public DrawSphere(ChartCanvas fm1, float r1, float xc1, float yc1, float zc1)
 {
     form1 = fm1;
     r     = r1;
     xc    = xc1;
     yc    = yc1;
     zc    = zc1;
 }
 public DrawSphere(ChartCanvas fm1, float r1, float xc1, float yc1, float zc1)
 {
     form1 = fm1;
     r = r1;
     xc = xc1;
     yc = yc1;
     zc = zc1;
 }
 public DrawSphere(ChartCanvas fm1)
 {
     form1 = fm1;
 }
 public DrawSphere(ChartCanvas fm1)
 {
     form1 = fm1;
 }