GettingStarted

Draw2d Hello World, initialize a graphic context and save the to a png file.

package main
import (
"bufio""fmt""log""os""github/llgcode/draw2d""image""image/png"
)
funcmain() {
// Create a 200x200 RGBA image img:=image.NewRGBA(image.Rect(0, 0, 200, 200))
// Initialize a graphic context on this imagegc:=draw2d.NewGraphicContext(img)
// Create a new path gc.BeginPath()
// start the path at (10, 10)gc.MoveTo(10.0, 10.0)
// add a lineto the path to (100.0, 10.0)gc.LineTo(100.0, 10.0)
// Strokegc.Stroke()
// Save image to disk filePath:="TestGettingStarted.png"saveToPngFile(filePath, img)
fmt.Printf("Wrote %s OK.\n", filePath)
}
// Save image to a file path using PNG formatfuncsaveToPngFile(filePathstring, m image.Image) error {
// Create the filef, err:=os.Create(filePath)
iferr!=nil {
returnerr
}
deferf.Close()
// Create Writer from fileb:=bufio.NewWriter(f)
// Write the image into the buffererr=png.Encode(b, m)
iferr!=nil {
returnerr
}
err=b.Flush()
iferr!=nil {
returnerr
}
returnnil
}

See Samples to go further.