- void segment(double diameter, double x1, double y1, double z1, double x2, double y2, double z2);
+ void segment(double x1, double y1, double z1, double x2, double y2, double z2);
+
+ /**
+ * Specify a vertex
+ * @param x x-coordinate
+ * @param y y-coordinate
+ * @param z z-coordinate
+ */
+ void vertex(double x, double y, double z);
+
+ /**
+ * Specify a normal
+ * @param x x-coordinate
+ * @param y y-coordinate
+ * @param z z-coordinate
+ */
+ void normal(double x, double y, double z);