Reduce code width to <= 80 characters

1 files changed, 35 insertions, 17 deletions

diff --git a/stl.go b/stl.go
index 60ada3e..851a003 100644
--- a/stl.go
+++ b/stl.go
@@ -50,8 +50,11 @@ func ReadBinaryStlFile(filePath string) (StlModel, error) {
 	return model,nil
 }
 
-// parse the 50 bytes of the STL file representing a triangle (surface normal is ignored)
-func ParseBinaryStlTriangle(data []byte) *Triangle {  // FIXME: This function should only accept 50 byte slices/arrays
+// parse the 50 bytes of the STL file representing a triangle (surface normal
+// is ignored)
+func ParseBinaryStlTriangle(data []byte) *Triangle {
+
+	// FIXME: This function should only accept 50 byte slices/arrays
 
 	// allocate a new triangle and three corner points on the heap
 	triangle := new(Triangle)
@@ -60,24 +63,34 @@ func ParseBinaryStlTriangle(data []byte) *Triangle {  // FIXME: This function sh
 	triangle.points[2] = new(Point)
 
 	// parse x, y and z coordinate for corner point a
-	triangle.points[0].scalars[0] = math.Float32frombits(binary.LittleEndian.Uint32(data[12:16]))
-	triangle.points[0].scalars[1] = math.Float32frombits(binary.LittleEndian.Uint32(data[16:20]))
-	triangle.points[0].scalars[2] = math.Float32frombits(binary.LittleEndian.Uint32(data[20:24]))
+	triangle.points[0].scalars[0] = math.Float32frombits(
+		binary.LittleEndian.Uint32(data[12:16]))
+	triangle.points[0].scalars[1] = math.Float32frombits(
+		binary.LittleEndian.Uint32(data[16:20]))
+	triangle.points[0].scalars[2] = math.Float32frombits(
+		binary.LittleEndian.Uint32(data[20:24]))
 
 	// parse x, y and z coordinate for corner point b
-	triangle.points[1].scalars[0] = math.Float32frombits(binary.LittleEndian.Uint32(data[24:28]))
-	triangle.points[1].scalars[1] = math.Float32frombits(binary.LittleEndian.Uint32(data[28:32]))
-	triangle.points[1].scalars[2] = math.Float32frombits(binary.LittleEndian.Uint32(data[32:36]))
+	triangle.points[1].scalars[0] = math.Float32frombits(
+		binary.LittleEndian.Uint32(data[24:28]))
+	triangle.points[1].scalars[1] = math.Float32frombits(
+		binary.LittleEndian.Uint32(data[28:32]))
+	triangle.points[1].scalars[2] = math.Float32frombits(
+		binary.LittleEndian.Uint32(data[32:36]))
 
 	// parse x, y and z coordinate for corner point c
-	triangle.points[2].scalars[0] = math.Float32frombits(binary.LittleEndian.Uint32(data[36:40]))
-	triangle.points[2].scalars[1] = math.Float32frombits(binary.LittleEndian.Uint32(data[40:44]))
-	triangle.points[2].scalars[2] = math.Float32frombits(binary.LittleEndian.Uint32(data[44:48]))
+	triangle.points[2].scalars[0] = math.Float32frombits(
+		binary.LittleEndian.Uint32(data[36:40]))
+	triangle.points[2].scalars[1] = math.Float32frombits(
+		binary.LittleEndian.Uint32(data[40:44]))
+	triangle.points[2].scalars[2] = math.Float32frombits(
+		binary.LittleEndian.Uint32(data[44:48]))
 
 	return triangle
 }
 
-func (stl StlModel) toVertices() (vertex_position []float32, vertex_normal []float32) {
+func (stl StlModel) toVertices() (vertex_position []float32,
+	vertex_normal []float32) {
 
 	vertex_position = make([]float32, stl.numberOfTriangles * 9)
 	vertex_normal = make([]float32, stl.numberOfTriangles * 9)
@@ -90,20 +103,25 @@ func (stl StlModel) toVertices() (vertex_position []float32, vertex_normal []flo
 
 			for scalarIndex,scalar := range(point.scalars) {
 
-				vertex_position[triangleIndex*9+pointIndex*3+scalarIndex] = scalar
+				i := triangleIndex * 9 + pointIndex * 3 + scalarIndex
+				vertex_position[i] = scalar
 
 			}
 
 		}
 
 		// calculate normal
-		point0 = Vector3{triangle.points[0].scalars[0], triangle.points[0].scalars[1], triangle.points[0].scalars[2]}
-		point1 = Vector3{triangle.points[1].scalars[0], triangle.points[1].scalars[1], triangle.points[1].scalars[2]}
-		point2 = Vector3{triangle.points[2].scalars[0], triangle.points[2].scalars[1], triangle.points[2].scalars[2]}
+		point0 = Vector3{triangle.points[0].scalars[0],
+			triangle.points[0].scalars[1], triangle.points[0].scalars[2]}
+		point1 = Vector3{triangle.points[1].scalars[0],
+			triangle.points[1].scalars[1], triangle.points[1].scalars[2]}
+		point2 = Vector3{triangle.points[2].scalars[0],
+			triangle.points[2].scalars[1], triangle.points[2].scalars[2]}
 		edge0 = point1.subtract(point0)
 		edge1 = point2.subtract(point1)
 		normal = edge0.crossProduct(edge1)
-		normal.divideScalar(2.0)  // length of normal vector corresponds to triangle area
+		normal.divideScalar(2.0)  // length of normal vector corresponds to
+		                          // triangle area
 
 		// save normal to each vertex of the triangle
 		for i := 0; i<3; i++ {