PLT-173 Added graphics-go and goexif libraries for image manipulation

1 files changed, 35 insertions, 0 deletions

diff --git a/Godeps/_workspace/src/code.google.com/p/graphics-go/graphics/rotate.go b/Godeps/_workspace/src/code.google.com/p/graphics-go/graphics/rotate.go
new file mode 100644
index 000000000..62bde1a08
--- /dev/null
+++ b/Godeps/_workspace/src/code.google.com/p/graphics-go/graphics/rotate.go
@@ -0,0 +1,35 @@
+// Copyright 2011 The Graphics-Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package graphics
+
+import (
+	"code.google.com/p/graphics-go/graphics/interp"
+	"errors"
+	"image"
+	"image/draw"
+)
+
+// RotateOptions are the rotation parameters.
+// Angle is the angle, in radians, to rotate the image clockwise.
+type RotateOptions struct {
+	Angle float64
+}
+
+// Rotate produces a rotated version of src, drawn onto dst.
+func Rotate(dst draw.Image, src image.Image, opt *RotateOptions) error {
+	if dst == nil {
+		return errors.New("graphics: dst is nil")
+	}
+	if src == nil {
+		return errors.New("graphics: src is nil")
+	}
+
+	angle := 0.0
+	if opt != nil {
+		angle = opt.Angle
+	}
+
+	return I.Rotate(angle).TransformCenter(dst, src, interp.Bilinear)
+}