rename lab 3

labs/debugging/point.h

@@ -0,0 +1,28 @@
+#include <iostream>
+
+
+// A simple 3D point class.  In this simple world, we'll follow the
+// convention often used in Computer Graphics.  y is the vertical
+// axes, "pointing" up.  The x and z axes define the ground plane.
+
+class Point {
+public:
+  // CONSTRUCTOR
+  Point(double x, double y, double z) : x_(x),y_(y),z_(z) {}
+  // ACCESSORS
+  double get_x() const { return x_; }
+  double get_y() const { return y_; }
+  double get_z() const { return z_; }  
+private:
+  // REPRESENTATION
+  double x_,y_,z_;
+};
+
+
+
+// A helper function to print a Point.
+std::ostream& operator<< (std::ostream &ostr, const Point &p);
+
+
+// A helper function to compute the slope between two Points.
+double compute_slope(const Point &a, const Point &b);