Go tour "Pic" method: http://tour.golang.org

Slices Go Tour Exercise

package main

import (
    "fmt"
    "code.google.com/p/go-tour/pic"
)

// Return a matrix of uint8's to be drawn
func Pic(dx, dy int) [][]uint8 {
    
    fmt.Println("Image size")
    fmt.Printf("x:%d, y:%d\n", dx, dy)
    
    // allocate slice
    picture := make([][]uint8, dx)
    
    for i := 0; i < dx; i++ {
        // allocate slice
        row := make([]uint8, dy, dy)
        
        for j := 0; j < len(row); j++ {
            // Do some crazy things
            row[j]            = uint8((i+j)/2)
            row[len(row)-j-1] = row[j] ^ uint8(i*j)
            
        }
        picture[i] = row
    }
    return picture
}

func main() {
    pic.Show(Pic)
}