esimov

package main

import (
	"fmt"
	"time"
)

const LIM = 41
var facts [LIM]uint64

esimov

BitmapData.prototype.getContext = function() {
    return this.context;
};

BitmapData.prototype.getCanvas = function() {
    return this.canvas;
};

BitmapData.prototype.getCanvasPos = function(el) {
    var canvas = document.getElementById(el) || this.getCanvas();

esimov

var NOISE = NOISE || { };

NOISE.Perlin = (function() {
    var iOctaves = 1,
        fPersistence = 0.2,
        fResult, fFreq, fPers,
        aOctFreq, // frequency per octave
        aOctPers, // persistance per octave
        fPersMax; // 1 / max persistence

esimov

package main

import (
	"math/rand"
	"fmt"
)

const (
	N int = 128
)

esimov

c.processor = &triangle.Processor{
	BlurRadius:      2,
	Noise:           0,
	BlurFactor:      2,
	EdgeFactor:      4,
	PointRate:       c.pointRate,
	MaxPoints:       c.trianglePoints,
	PointsThreshold: c.pointsThreshold,
	Wireframe:       c.wireframe,
	StrokeWidth:     c.strokeWidth,

esimov

uint8Arr := js.Global().Get("Uint8Array").New(width * height * 4)
js.CopyBytesToJS(uint8Arr2, pixels.ImgToPix(blurred))

uint8Clamped := js.Global().Get("Uint8ClampedArray").New(uint8Arr2)
rawData := js.Global().Get("ImageData").New(uint8Clamped, width, height)

c.ctx.Call("putImageData", rawData, 0, 0)

esimov

rgba := c.ctx.Call("getImageData", 0, 0, width, height).Get("data")

// Convert the rgba value of type Uint8ClampedArray to Uint8Array in order to
// be able to transfer it from Javascript to Go via the js.CopyBytesToGo function.
uint8Arr := js.Global().Get("Uint8Array").New(rgba)
js.CopyBytesToGo(data, uint8Arr)

esimov

// ImgToPix converts an image to an 1D uint8 pixel array.
// In order to preserve the color information per pixel we need to reconstruct the array to a specific format.
func ImgToPix(src *image.NRGBA) []uint8 {
	size := src.Bounds().Size()
	width, height := size.X, size.Y
	pixels := make([][][3]uint8, height)

	for y := 0; y < height; y++ {
		row := make([][3]uint8, width)
		for x := 0; x < width; x++ {

esimov

package draw

import (
	"image"
	"image/color"
)

// ellipse defines the struct components required to apply the ellipse's formula.
type ellipse struct {
	cx int // center x

esimov

draw.DrawMask(source.(*image.NRGBA), source.Bounds(), ellipse, image.Point{}, mask, image.Point{}, draw.Over)