randbitmap

randbitmap

Generate random bitmaps.

Installation

go get -u github.com/trubitsyn/randbitmap/cmd/randbitmap

Usage

Execute randbitmap to save black & white 100x100 image to random.png.

Usage of randbitmap:
  -color
        Color bitmap
  -file string
        Output file (default "random.png")
  -overwrite
        Overwrite existing file
  -size uint
        Bitmap size (default 100)

Defaults

randbitmap -size=100 -color=false -file=random.png -overwrite=false

Library

Installation

go get -u github.com/trubitsyn/randbitmap

Usage

package main

import (
	"flag"
	"fmt"
	"github.com/trubitsyn/randbitmap"
	"math/rand"
	"os"
)

var (
	width    = flag.Uint("width", 100, "Bitmap size")
	height   = flag.Uint("height", 100, "Bitmap size")
	color    = flag.Bool("color", false, "Color bitmap")
	filename = flag.String("file", "random.png", "Output file")
)

func main() {
	flag.Parse()
	bitmap := randbitmap.NewBitmap(*width, *height, *color)
	bitmap.SetGenerator(func(n int) int {
		return rand.Intn(n)
	})
	f, err := os.Create(*filename)
	if err != nil {
		fmt.Println(err)
	}
	if err := bitmap.Render(f); err != nil {
		fmt.Println(err)
	}
}

Testing

go get -t github.com/trubitsyn/randbitmap
go test github.com/trubitsyn/randbitmap

LICENSE

Copyright 2019 Nikola Trubitsyn

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.