renamed

README.md

@@ -28,13 +28,13 @@ Too many dependencies? Because OpenSCAD doesn't provide namespace management, I
 ## Documentation
 
 - 2D
+    - [pie](https://openhome.cc/eGossip/OpenSCAD/lib-pie.html)
+	- [arc](https://openhome.cc/eGossip/OpenSCAD/lib-arc.html)
 	- [ellipse](https://openhome.cc/eGossip/OpenSCAD/lib-ellipse.html)
 	- [rounded_square](https://openhome.cc/eGossip/OpenSCAD/lib-rounded_square.html)
 	- [line2d](https://openhome.cc/eGossip/OpenSCAD/lib-line2d.html)
 	- [polyline2d](https://openhome.cc/eGossip/OpenSCAD/lib-polyline2d.html)
 	- [hull_polyline2d](https://openhome.cc/eGossip/OpenSCAD/lib-hull_polyline2d.html)
-	- [circular_sector](https://openhome.cc/eGossip/OpenSCAD/lib-circular_sector.html)
-	- [arc](https://openhome.cc/eGossip/OpenSCAD/lib-arc.html)
 	- [hexagons](https://openhome.cc/eGossip/OpenSCAD/lib-hexagons.html)
 	- [polytransversals](https://openhome.cc/eGossip/OpenSCAD/lib-polytransversals.html)
 	- [path_extend](https://openhome.cc/eGossip/OpenSCAD/lib-path_extend.html)

docs/lib-circular_sector.md

@@ -1,20 +0,0 @@
-# circular_sector
-
-Creates a circular sector. You can pass a 2 element vector to define the central angle. Its `$fa`, `$fs` and `$fn` parameters are consistent with the `circle` module.
-
-## Parameters
-
-- `radius` : The radius of the circle.
-- `angles` : A 2 element vector which defines the central angle. The first element of the vector is the beginning angle in degrees, and the second element is the ending angle.
-- `$fa`, `$fs`, `$fn` : Check [the circle module](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Using_the_2D_Subsystem#circle) for more details.
-
-## Examples
-
-    include <circular_sector.scad>;
-
-    circular_sector(radius = 20, angles = [210, 310]);   
-    translate([-15, 0, 0]) circular_sector(radius = 20, angles = [45, 135]);  
-    translate([15, 0, 0]) circular_sector(radius = 20, angles = [45, 135], $fn = 12);  
-
-![circular_sector](images/lib-circular_sector-1.JPG)
-

docs/lib-pie.md

@@ -0,0 +1,20 @@
+# pie
+
+Creates a pie (circular sector). You can pass a 2 element vector to define the central angle. Its `$fa`, `$fs` and `$fn` parameters are consistent with the `circle` module.
+
+## Parameters
+
+- `radius` : The radius of the circle.
+- `angles` : A 2 element vector which defines the central angle. The first element of the vector is the beginning angle in degrees, and the second element is the ending angle.
+- `$fa`, `$fs`, `$fn` : Check [the circle module](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Using_the_2D_Subsystem#circle) for more details.
+
+## Examples
+
+    include <pie.scad>;
+
+    pie(radius = 20, angles = [210, 310]);   
+    translate([-15, 0, 0]) pie(radius = 20, angles = [45, 135]);  
+    translate([15, 0, 0]) pie(radius = 20, angles = [45, 135], $fn = 12);  
+
+![pie](images/lib-pie-1.JPG)
+

src/pie.scad

@@ -1,18 +1,18 @@
 /**
-* circular_sector.scad
+* pie.scad
 *
-* Creates a circular sector. You can pass a 2 element vector to define the central angle. Its $fa, $fs and $fn parameters are consistent with the circle module.
+* Creates a pie (circular sector). You can pass a 2 element vector to define the central angle. Its $fa, $fs and $fn parameters are consistent with the circle module.
 * 
 * @copyright Justin Lin, 2017
 * @license https://opensource.org/licenses/lgpl-3.0.html
 *
-* @see https://openhome.cc/eGossip/OpenSCAD/lib-circular_sector.html
+* @see https://openhome.cc/eGossip/OpenSCAD/lib-pie.html
 *
 **/
 
 include <__private__/__frags.scad>;
 
-module circular_sector(radius, angles) {
+module pie(radius, angles) {
 
     frags = __frags(radius);
     a_step = 360 / frags;