public override IPen ToPen(float scale)
{
float width = scale * Width;
IPen pen = null;
switch (DashStyle)
{
case DashStyle.Solid:
pen = Pens.Solid(Color, width);
break;
case DashStyle.Dash:
pen = Pens.Dash(Color, width);
break;
case DashStyle.Dot:
pen = Pens.Dot(Color, width);
break;
case DashStyle.DashDot:
pen = Pens.DashDot(Color, width);
break;
case DashStyle.DashDotDot:
pen = Pens.DashDotDot(Color, width);
break;
}
return(pen);
}
public void DrawLines_Dot <TPixel>(TestImageProvider <TPixel> provider, string colorName, float alpha, float thickness, bool antialias)
where TPixel : unmanaged, IPixel <TPixel>
{
Color color = TestUtils.GetColorByName(colorName).WithAlpha(alpha);
Pen pen = Pens.Dot(color, thickness);
DrawLinesImpl(provider, colorName, alpha, thickness, antialias, pen);
}
public void ImageShouldBeOverlayedByPathDotted()
{
string path = TestEnvironment.CreateOutputDirectory("Drawing", "Lines");
using (var image = new Image <Rgba32>(500, 500))
{
image.Mutate(x => x.BackgroundColor(Rgba32.Blue));
image.Mutate(x => x.DrawLines(Pens.Dot(Rgba32.HotPink, 5),
new SixLabors.Primitives.PointF[] {
new Vector2(10, 10),
new Vector2(200, 150),
new Vector2(50, 300)
}));
image.Save($"{path}/Dot.png");
}
}
public void ImageShouldBeOverlayedByPathDotted()
{
string path = CreateOutputDirectory("Drawing", "Lines");
var image = new Image(500, 500);
using (FileStream output = File.OpenWrite($"{path}/Dot.png"))
{
image
.BackgroundColor(Color.Blue)
.DrawLines(Pens.Dot(Color.HotPink, 5), new[] {
new Vector2(10, 10),
new Vector2(200, 150),
new Vector2(50, 300)
})
.Save(output);
}
}
public static IPen GetPen(this Cmdlet cmdlet, Pen penType, float width, string colorString)
{
Rgba32 rgbaColor = cmdlet.ParseColor(colorString);
Color color = new Color(rgbaColor);
switch (penType)
{
case Pen.Dash:
return(Pens.Dash(color, width));
case Pen.DashDot:
return(Pens.DashDot(color, width));
case Pen.DashDotDot:
return(Pens.DashDotDot(color, width));
case Pen.Dot:
return(Pens.Dot(color, width));
default:
return(Pens.Solid(color, width));
}
}
/// <summary> /// Create a pen with a 'Dot' drawing patterns /// </summary> /// <param name="brush">The brush.</param> /// <param name="width">The width.</param> /// <returns>The Pen</returns> public static Pen Dot(IBrush <Color> brush, float width) => new Pen(Pens <Color> .Dot(brush, width));
/// <summary> /// Create a pen with a 'Dot' drawing patterns /// </summary> /// <param name="color">The color.</param> /// <param name="width">The width.</param> /// <returns>The Pen</returns> public static Pen Dot(Color color, float width) => new Pen(Pens <Color> .Dot(color, width));
/// <summary>
/// 画点+画字=验证码byte[]
/// </summary>
/// <param name="code"></param>
/// <param name="vCodeNum"></param>
/// <param name="xx"></param>
/// <param name="yy"></param>
/// <returns></returns>
public static byte[] GetValidCodeByte(string fontPath, out string code, int vCodeNum = 4, int xx = 80, int yy = 25)
{
var bb = default(byte[]);
code = RndNum(vCodeNum);
try
{
var content = code;
var dianWith = 1; //点宽度
var xx_space = 10; //点与点之间x坐标间隔
var yy_space = 5; //y坐标间隔
var wenZiLen = vCodeNum; //文字长度
var maxX = xx / wenZiLen; //每个文字最大x宽度
var prevWenZiX = 0; //前面一个文字的x坐标
var size = maxX; //字体大小
//字体
var install_Family = new FontCollection().Install(fontPath);
//var install_Family = new FontCollection().Find("arial");
var font = new Font(install_Family, size); //字体
//点坐标
var listPath = new List <IPath>();
for (int i = 0; i < xx / xx_space; i++)
{
for (int j = 0; j < yy / yy_space; j++)
{
var position = new Vector2(i * xx_space, j * yy_space);
var linerLine = new LinearLineSegment(position, position);
var shapesPath = new SixLabors.Shapes.Path(linerLine);
listPath.Add(shapesPath);
}
}
//画图
using (Image <Rgba32> image = new Image <Rgba32>(xx, yy)) //画布大小
{
image.Mutate(x =>
{
var imgProc = x;
//逐个画字
for (int i = 0; i < wenZiLen; i++)
{
//当前的要输出的字
var nowWenZi = content.Substring(i, 1);
//文字坐标
var wenXY = new Vector2();
var maxXX = prevWenZiX + (maxX - size);
wenXY.X = new Random().Next(prevWenZiX, maxXX);
wenXY.Y = new Random().Next(0, yy - size);
prevWenZiX = Convert.ToInt32(Math.Floor(wenXY.X)) + size;
//画字
imgProc.DrawText(
nowWenZi, //文字内容
font,
i % 2 > 0 ? Rgba32.HotPink : Rgba32.Red,
wenXY,
TextGraphicsOptions.Default);
}
//画点
imgProc.BackgroundColor(Rgba32.WhiteSmoke). //画布背景
Draw(
Pens.Dot(Rgba32.HotPink, dianWith), //大小
new PathCollection(listPath) //坐标集合
);
});
using (MemoryStream stream = new MemoryStream())
{
image.SaveAsPng(stream);
bb = stream.GetBuffer();
}
}
}
catch (Exception ex)
{
}
return(bb);
}
