It has been decreed. heading2D() is now heading()

raw/chapters/01_vectors.asc

@@ -415,7 +415,7 @@ Addition was really just the first step.   There are many mathematical operation
 ((("cross() function (PVector class)")))
 ((("dist() function (PVector class)")))
 ((("dot() function (PVector class)")))
-((("heading2D() function (PVector class)")))
+((("heading() function (PVector class)")))
 ((("lerp() function (PVector class)")))
 ((("limit() function (PVector class)")))
 ((("PVector class (Processing)","function list for")))
@@ -431,7 +431,7 @@ Addition was really just the first step.   There are many mathematical operation
 - [function]*setMag()* - set the magnitude of a vector
 - [function]*normalize()* — normalize the vector to a unit length of 1
 - [function]*limit()* — limit the magnitude of a vector
-- [function]*heading2D()* — the heading of a vector expressed as an angle
+- [function]*heading()* — the 2D heading of a vector expressed as an angle
 - [function]*rotate()* — rotate a 2D vector by an angle
 - [function]*lerp()* — linear interpolate to another vector
 - [function]*dist()* — the Euclidean distance between two vectors (considered as points)

raw/chapters/03_oscillation.asc

@@ -401,17 +401,17 @@ image::imgs/chapter03/ch03_ex03.png[canvas="processingjs/chapter03/_3_03_pointin
   }
 ----
 
-((("heading2D() function (PVector class)")))
-((("motion","heading2D() function (PVector class)")))
-((("PVector class (Processing)","heading2D() function")))
-((("tangent","heading2D() function (PVector class)")))
+((("heading() function (PVector class)")))
+((("motion","heading() function (PVector class)")))
+((("PVector class (Processing)","heading() function")))
+((("tangent","heading() function (PVector class)")))
 
-To simplify this even further, the [klass]*PVector* class itself provides a function called [klass]*heading2D()*, which takes care of calling [function]*atan2()* for you so you can get the direction angle, in radians, for any Processing [klass]*PVector*.
+To simplify this even further, the [klass]*PVector* class itself provides a function called [klass]*heading()*, which takes care of calling [function]*atan2()* for you so you can get the 2D direction angle, in radians, for any Processing [klass]*PVector*.
 
 [source,java]
 ----
     // The easiest way to do this!
-    float angle = velocity.heading2D();
+    float angle = velocity.heading();
 ----
 
 [[chapter03_exercise3]]

raw/chapters/06_steering.asc

@@ -277,7 +277,7 @@ class Vehicle {
     // Vehicle is a triangle pointing in 
     // the direction of velocity; since it is drawn
     // pointing up, we rotate it an additional 90 degrees.
-    float theta = velocity.heading2D() + PI/2;   
+    float theta = velocity.heading() + PI/2;   
     fill(175);             
     stroke(0);             
     pushMatrix();