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| @page "/"
@using SkiaSharp
@using SkiaSharp.Views.Blazor
<button @onclick="ButtonClicked">Redraw Image</button>
<SKCanvasView
@ref="canvasReference"
OnPaintSurface="@OnPaintSurface"
style="@($"height: {1920}px; width: {1080}px;")"
IgnorePixelScaling=true />
@code
{
SKCanvasView canvasReference;
void ButtonClicked()
{
canvasReference.Invalidate();
}
private void OnPaintSurface(SKPaintSurfaceEventArgs e)
{
var canvas = e.Surface.Canvas;
canvas.Clear(SKColor.Parse("#003366"));
int width = 300;
int height = 300;
int step = 12;
SKBitmap bmp = new(width, height);
Random rand = new(0);
SKPaint paintR = new() { Color = SKColors.White.WithAlpha(100), IsAntialias = true };
for (var i = 0; i < width; i = i + step)
{
for (var j = 0; j < height; j = j + step)
{
paintR.StrokeWidth = rand.Next(1, 6);
Draw(i, j, step, step, paintR, canvas);
}
}
}
void Draw(int x, int y, int width, int height, SKPaint paint, SKCanvas canvas)
{
Random random = new Random();
paint.Color = listOfColor[random.Next(0, listOfColor.Count)];
var prob = random.Next(0, 10);
if (prob < 5)
{
SKPoint pointOne = new(x, y);
SKPoint pointTwo = new(x + width, y + height);
//paint.StrokeWidth = rand.Next(1, 10);
canvas.DrawLine(pointOne, pointTwo, paint);
//canvas.DrawCircle(pointOne, random.Next(1, 6), paint);
}
else
{
SKPoint pointOne = new(x + width, y);
SKPoint pointTwo = new(x, y + height);
//paint.StrokeWidth = rand.Next(1, 10);
canvas.DrawLine(pointOne, pointTwo, paint);
}
}
List<SKColor> listOfColor = new List<SKColor>
{
SKColor.Parse("#EEF5FF"),
SKColor.Parse("#B4D4FF"),
SKColor.Parse("#86B6F6"),
SKColor.Parse("#176B87"),
SKColor.Parse("#00A9FF"),
SKColor.Parse("#89CFF3"),
SKColor.Parse("#A0E9FF"),
SKColor.Parse("#CDF5FD"),
SKColor.Parse("#FF90BC"),
SKColor.Parse("#FFC0D9"),
SKColor.Parse("#F9F9E0"),
SKColor.Parse("#8ACDD7"),
SKColor.Parse("#F2AFEF"),
SKColor.Parse("#C499F3"),
SKColor.Parse("#33186B"),
};
}
|
