From b420a9bae3d8977d1db028fbb859a745bcc10729 Mon Sep 17 00:00:00 2001
From: Justin Lin <caterpillar@openhome.cc>
Date: Wed, 15 Mar 2017 15:38:59 +0800
Subject: [PATCH] tab to space

---
 src/arc.scad        | 12 +++++------
 src/line2d.scad     | 50 ++++++++++++++++++++++-----------------------
 src/polyline2d.scad | 24 +++++++++++-----------
 3 files changed, 43 insertions(+), 43 deletions(-)

diff --git a/src/arc.scad b/src/arc.scad
index 0283b228..964d8d4c 100644
--- a/src/arc.scad
+++ b/src/arc.scad
@@ -19,11 +19,11 @@ LINE_INWARD = 2;
 
 module arc(radius, angles, width, width_mode = LINE_CROSS, fn = 24) {
     w_offset = width_mode == LINE_CROSS ? [width / 2, -width / 2] : (
-	    width_mode == LINE_INWARD ? [0, -width] : [width, 0]
-	);
-	
-	difference() {
-	    sector(radius + w_offset[0], angles, fn);
-		sector(radius + w_offset[1], angles, fn);
+        width_mode == LINE_INWARD ? [0, -width] : [width, 0]
+    );
+    
+    difference() {
+        sector(radius + w_offset[0], angles, fn);
+        sector(radius + w_offset[1], angles, fn);
     }
 } 
\ No newline at end of file
diff --git a/src/line2d.scad b/src/line2d.scad
index b8e83bb0..14469b56 100644
--- a/src/line2d.scad
+++ b/src/line2d.scad
@@ -17,14 +17,14 @@ CAP_ROUND = 2;
 
 module line2d(p1, p2, width, p1Style = CAP_SQUARE, p2Style =  CAP_SQUARE, round_fn = 24) {
     $fn = round_fn;
-	half_width = 0.5 * width;
+    half_width = 0.5 * width;
 
     atan_angle = atan2(p2[1] - p1[1], p2[0] - p1[0]);
     angle = 90 - atan_angle;
-	
+    
     offset_x = half_width * cos(angle);
     offset_y = half_width * sin(angle);
-	
+    
     offset1 = [-offset_x, offset_y];
     offset2 = [offset_x, -offset_y];
 
@@ -32,27 +32,27 @@ module line2d(p1, p2, width, p1Style = CAP_SQUARE, p2Style =  CAP_SQUARE, round_
         p1 + offset1, p2 + offset1,  
         p2 + offset2, p1 + offset2
     ]);
-	
-	module square_end(point) {
+    
+    module square_end(point) {
         translate(point) 
-			rotate(atan_angle) 
-				square(width, center = true);	
-	}
-	
-	module round_end(point) {
-		translate(point) 
-			circle(half_width, center = true);	
-	}
-	
-	if(p1Style == CAP_SQUARE) {
-		square_end(p1);
-	} else if(p1Style == CAP_ROUND) {
-		round_end(p1);
-	}
-	
-	if(p2Style == CAP_SQUARE) {
-		square_end(p2);
-	} else if(p2Style == CAP_ROUND) {
-		round_end(p2);
-	}
+            rotate(atan_angle) 
+                square(width, center = true);    
+    }
+    
+    module round_end(point) {
+        translate(point) 
+            circle(half_width, center = true);    
+    }
+    
+    if(p1Style == CAP_SQUARE) {
+        square_end(p1);
+    } else if(p1Style == CAP_ROUND) {
+        round_end(p1);
+    }
+    
+    if(p2Style == CAP_SQUARE) {
+        square_end(p2);
+    } else if(p2Style == CAP_ROUND) {
+        round_end(p2);
+    }
 }
\ No newline at end of file
diff --git a/src/polyline2d.scad b/src/polyline2d.scad
index 2f17df03..946803bc 100644
--- a/src/polyline2d.scad
+++ b/src/polyline2d.scad
@@ -12,21 +12,21 @@
 
 module polyline2d(points, width, startingStyle = CAP_SQUARE, endingStyle = CAP_SQUARE, round_fn = 24) {
     module line_segment(index) {
-	    styles = index == 1 ? [startingStyle, CAP_ROUND] : (
-		    index == len(points) - 1 ? [CAP_ROUND, endingStyle] : [
-			    CAP_ROUND, CAP_ROUND
-			]
-		);
-		
-		line2d(points[index - 1], points[index], width, 
-			   p1Style = styles[0], p2Style = styles[1], 
-			   round_fn = round_fn);
-	}
+        styles = index == 1 ? [startingStyle, CAP_ROUND] : (
+            index == len(points) - 1 ? [CAP_ROUND, endingStyle] : [
+                CAP_ROUND, CAP_ROUND
+            ]
+        );
+        
+        line2d(points[index - 1], points[index], width, 
+               p1Style = styles[0], p2Style = styles[1], 
+               round_fn = round_fn);
+    }
 
     module polyline2d_inner(points, index) {
         if(index < len(points)) {
-		    line_segment(index);
-			polyline2d_inner(points, index + 1);
+            line_segment(index);
+            polyline2d_inner(points, index + 1);
         } 
     }