1 files changed, 0 insertions, 110 deletions
diff --git a/vendor/github.com/golang/freetype/example/round/main.go b/vendor/github.com/golang/freetype/example/round/main.go
deleted file mode 100644
index 2920e8335..000000000
--- a/vendor/github.com/golang/freetype/example/round/main.go
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright 2010 The Freetype-Go Authors. All rights reserved.
-// Use of this source code is governed by your choice of either the
-// FreeType License or the GNU General Public License version 2 (or
-// any later version), both of which can be found in the LICENSE file.
-
-// +build example
-//
-// This build tag means that "go install github.com/golang/freetype/..."
-// doesn't install this example program. Use "go run main.go" to run it or "go
-// install -tags=example" to install it.
-
-// This program visualizes the quadratic approximation to the circle, used to
-// implement round joins when stroking paths. The approximation is used in the
-// stroking code for arcs between 0 and 45 degrees, but is visualized here
-// between 0 and 90 degrees. The discrepancy between the approximation and the
-// true circle is clearly visible at angles above 65 degrees.
-package main
-
-import (
-	"bufio"
-	"fmt"
-	"image"
-	"image/color"
-	"image/draw"
-	"image/png"
-	"log"
-	"math"
-	"os"
-
-	"github.com/golang/freetype/raster"
-	"golang.org/x/image/math/fixed"
-)
-
-// pDot returns the dot product p·q.
-func pDot(p, q fixed.Point26_6) fixed.Int52_12 {
-	px, py := int64(p.X), int64(p.Y)
-	qx, qy := int64(q.X), int64(q.Y)
-	return fixed.Int52_12(px*qx + py*qy)
-}
-
-func main() {
-	const (
-		n = 17
-		r = 64 * 80
-	)
-	s := fixed.Int26_6(r * math.Sqrt(2) / 2)
-	t := fixed.Int26_6(r * math.Tan(math.Pi/8))
-
-	m := image.NewRGBA(image.Rect(0, 0, 800, 600))
-	draw.Draw(m, m.Bounds(), image.NewUniform(color.RGBA{63, 63, 63, 255}), image.ZP, draw.Src)
-	mp := raster.NewRGBAPainter(m)
-	mp.SetColor(image.Black)
-	z := raster.NewRasterizer(800, 600)
-
-	for i := 0; i < n; i++ {
-		cx := fixed.Int26_6(6400 + 12800*(i%4))
-		cy := fixed.Int26_6(640 + 8000*(i/4))
-		c := fixed.Point26_6{X: cx, Y: cy}
-		theta := math.Pi * (0.5 + 0.5*float64(i)/(n-1))
-		dx := fixed.Int26_6(r * math.Cos(theta))
-		dy := fixed.Int26_6(r * math.Sin(theta))
-		d := fixed.Point26_6{X: dx, Y: dy}
-		// Draw a quarter-circle approximated by two quadratic segments,
-		// with each segment spanning 45 degrees.
-		z.Start(c)
-		z.Add1(c.Add(fixed.Point26_6{X: r, Y: 0}))
-		z.Add2(c.Add(fixed.Point26_6{X: r, Y: t}), c.Add(fixed.Point26_6{X: s, Y: s}))
-		z.Add2(c.Add(fixed.Point26_6{X: t, Y: r}), c.Add(fixed.Point26_6{X: 0, Y: r}))
-		// Add another quadratic segment whose angle ranges between 0 and 90
-		// degrees. For an explanation of the magic constants 128, 150, 181 and
-		// 256, read the comments in the freetype/raster package.
-		dot := 256 * pDot(d, fixed.Point26_6{X: 0, Y: r}) / (r * r)
-		multiple := fixed.Int26_6(150-(150-128)*(dot-181)/(256-181)) >> 2
-		z.Add2(c.Add(fixed.Point26_6{X: dx, Y: r + dy}.Mul(multiple)), c.Add(d))
-		// Close the curve.
-		z.Add1(c)
-	}
-	z.Rasterize(mp)
-
-	for i := 0; i < n; i++ {
-		cx := fixed.Int26_6(6400 + 12800*(i%4))
-		cy := fixed.Int26_6(640 + 8000*(i/4))
-		for j := 0; j < n; j++ {
-			theta := math.Pi * float64(j) / (n - 1)
-			dx := fixed.Int26_6(r * math.Cos(theta))
-			dy := fixed.Int26_6(r * math.Sin(theta))
-			m.Set(int((cx+dx)/64), int((cy+dy)/64), color.RGBA{255, 255, 0, 255})
-		}
-	}
-
-	// Save that RGBA image to disk.
-	outFile, err := os.Create("out.png")
-	if err != nil {
-		log.Println(err)
-		os.Exit(1)
-	}
-	defer outFile.Close()
-	b := bufio.NewWriter(outFile)
-	err = png.Encode(b, m)
-	if err != nil {
-		log.Println(err)
-		os.Exit(1)
-	}
-	err = b.Flush()
-	if err != nil {
-		log.Println(err)
-		os.Exit(1)
-	}
-	fmt.Println("Wrote out.png OK.")
-}