golang,绘图包image
package main
import (
"os"
"image"
"image/color"
"image/png"
"image/draw"
"flag"
"io/ioutil"
"log"
"github.com/golang/freetype"
"golang.org/x/image/font"
"bufio"
)
func Drawing(text,text1,text2 []string){
var (
dpi = flag.Float64("dpi", 72, "screen resolution in Dots Per Inch")
fontfile = flag.String("fontfile", "./src/sms_v1/etc/阿丽达黑体.ttf", "filename of the ttf font")
hinting = flag.String("hinting", "none", "none | full")
size = flag.Float64("size", 20, "font size in points")
spacing = flag.Float64("spacing", 1.5, "line spacing (e.g. 2 means double spaced)")
wonb = flag.Bool("whiteonblack", false, "white text on a black background")
)
flag.Parse()
// Read the font data.
fontBytes, err := ioutil.ReadFile(*fontfile)
if err != nil {
log.Println(err)
return
}
f, err := freetype.ParseFont(fontBytes)
if err != nil {
log.Println(err)
return
}
// Initialize the context.
fg, bg := image.Black, image.White
//ruler := color.RGBA{220, 220, 220, 200}
if *wonb {
fg, bg = image.White, image.Black
//ruler = color.RGBA{220, 220, 220, 200}
}
// f1, err := os.Open("aa.png")
// if err != nil {
// panic(err)
// }
// defer f1.Close()
// m1, err := png.Decode(f1)
//if err != nil {
// panic(err)
//}
//bounds := m1.Bounds()
rgba := image.NewRGBA(image.Rect(0, 0, 640, 480))
draw.Draw(rgba, rgba.Bounds(), bg, image.ZP, draw.Src)
//draw.DrawMask(rgba, bounds, bg, image.ZP,, draw.Src)
c := freetype.NewContext()
c.SetDPI(*dpi)
c.SetFont(f)
c.SetFontSize(*size)
c.SetClip(rgba.Bounds())
c.SetDst(rgba)
c.SetSrc(fg)
switch *hinting {
default:
c.SetHinting(font.HintingNone)
case "full":
c.SetHinting(font.HintingFull)
}
// Draw the guidelines.
//for y := 0; y < 480; y++ {
// for x := 0; x < 640; x++ {
// // 设置某个点的颜色，依次是 RGBA
// rgba.Set(x, y, color.RGBA{uint8(x), uint8(y), 0, 255})
// }
// }
for y := 100; y < 130; y++ {
for x := 10; x < 620; x++ {
// 设置某个点的颜色，依次是 RGBA
rgba.Set(x, y, color.RGBA{190, 190, 190, 255})
}
}
for y := 130; y < 160; y++ {
for x := 10; x < 620; x++ {
// 设置某个点的颜色，依次是 RGBA
rgba.Set(x, y, color.RGBA{28, 172, 255, 255})
}
}
for y := 160; y < 190; y++ {
for x := 10; x < 620; x++ {
// 设置某个点的颜色，依次是 RGBA
rgba.Set(x, y, color.RGBA{190, 190, 190, 255})
}
}
for y := 190; y < 220; y++ {
for x := 10; x < 620; x++ {
// 设置某个点的颜色，依次是 RGBA
rgba.Set(x, y, color.RGBA{28, 172, 255, 255})
}
}
for y := 220; y < 250; y++ {
for x := 10; x < 620; x++ {
// 设置某个点的颜色，依次是 RGBA
rgba.Set(x, y, color.RGBA{190, 190, 190, 255})
}
}
for y := 250; y < 280; y++ {
for x := 10; x < 620; x++ {
// 设置某个点的颜色，依次是 RGBA
rgba.Set(x, y, color.RGBA{28, 172, 255, 255})
}
}
for y := 280; y < 310; y++ {
for x := 10; x < 620; x++ {
// 设置某个点的颜色，依次是 RGBA
rgba.Set(x, y, color.RGBA{190, 190, 190, 255})
}
}
// Draw the text.
pt := freetype.Pt(10, 100+int(c.PointToFixed(*size)>>6))
for _, s := range text {
_, err = c.DrawString(s, pt)
if err != nil {
log.Println(err)
return
}
pt.Y += c.PointToFixed(*size * *spacing)
}
pt1 := freetype.Pt(200, 100+int(c.PointToFixed(*size)>>6))
for _, s := range text1 {
_, err = c.DrawString(s, pt1)
if err != nil {
log.Println(err)
return
}
pt1.Y += c.PointToFixed(*size * *spacing)
}
pt2 := freetype.Pt(400, 70+int(c.PointToFixed(*size)>>6))
for _, s := range text2 {
_, err = c.DrawString(s, pt2)
if err != nil {
log.Println(err)
return
}
pt2.Y += c.PointToFixed(*size * *spacing)
}
// 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, rgba)
if err != nil {
log.Println(err)
os.Exit(1)
}
err = b.Flush()
if err != nil {
log.Println(err)
os.Exit(1)
}
}
func main() {
//0 今日订单量
todayorders := "71车"
//1 今日销售额
todaysoale := "4万元"
//2 本月订单量
monthorders := "1777车"
//3 本月客单价
mcp := "5.66万元"
// 4 本月销售额
monthsoale := "20000万元"
// 5 本月完成率
mcr := "95.35%"
// 6 季度销售额
qsoale := "60000万元"
// 7 季度完成率
qcr := "75.33%"
// 8 年度销售额
ysoale := "180000万元"
// 9 年度完成率
ycr := "35.33%"
Repurchaserate := "28.57%"
todayregistration := "13家"
monthregistration := "153家"
PV := "1261次"
UV := "100个"
time_date := "2018-06-28 15:35"
var text = []string{
"今日" ,
"本月" ,
"季度" ,
"年度" ,
"流量 ",
"注册量" ,
"复购率" + Repurchaserate,
}
var text1 = []string{
todaysoale,
monthsoale,
qsoale,
ysoale,
"PV"+PV,
"今日"+todayregistration,
"今日"+todayorders,
}
var text2 = []string{
time_date,
"客单价" + mcp,
"完成率" +mcr,
"完成率" +qcr,
"完成率" +ycr,
"UV"+UV,
"本月"+monthregistration,
"本月"+monthorders,
}
Drawing(text,text1,text2)
}