/// <summary>
/// Draws the text onto the image filled via the brush.
/// </summary>
/// <param name="source">The image this method extends.</param>
/// <param name="options">The options.</param>
/// <param name="text">The text.</param>
/// <param name="font">The font.</param>
/// <param name="color">The color.</param>
/// <param name="location">The location.</param>
/// <returns>
/// The <see cref="Image{TPixel}" />.
/// </returns>
public static IImageProcessingContext DrawText(
this IImageProcessingContext source,
TextGraphicsOptions options,
string text,
Font font,
Color color,
PointF location) =>
source.DrawText(options, text, font, Brushes.Solid(color), null, location);
public void DrawPatternPolygon3Core()
{
using (var image = new Image <Rgba32>(800, 800))
{
image.Mutate(x => x.Fill(CoreBrushes.BackwardDiagonal(Color.HotPink)));
using (var stream = new MemoryStream())
{
image.SaveAsBmp(stream);
}
}
}
public void Draw()
{
if (ImageWrapper != null)
{
// Get size of the image
var width = (int)ImageWrapper.ActualWidth;
var height = (int)ImageWrapper.ActualHeight;
using (image = new Image <Rgba32>(width, height))
{
// Draw triangle
image.Mutate((ctx) =>
{
offset = new PointF(width / 2, height / 2);
// Define pens and inks
var pinkPen = Pens.Solid(Rgba32.ParseHex("#FFC0CB"), 1);
var greenPen = Pens.Solid(Rgba32.ParseHex("#228B22"), 1);
var blackPen = Pens.Solid(Rgba32.ParseHex("#000000"), 1);
var blackTransPen = Pens.Solid(Rgba32.ParseHex("#00005050"), 1);
var pinkBrush = Brushes.Solid(Rgba32.ParseHex("#C71585"));
var points = new List <PointF>();
for (int i = 1; i < width; i++)
{
var x = ScreenToX(i);
var y = MathF.Pow(x, 2) * MathF.Exp(x);
// Draw to screen
PointF point = new PointF(i, YToScreen(y));
// Eliminate out of bounds exception
if (
!float.IsInfinity(y) &&
MathF.Abs(y) < height * 10
)
{
points.Add(point);
}
}
DrawAxis(ctx, width, height);
ctx.DrawLines(blackPen, points.ToArray());
});
// Set the source
ImageControl.Source = Helpers.ImageToBitmap(image);
}
}
}
public void Draw()
{
if (ImageWrapper != null)
{
// Get size of the image
var width = (int)ImageWrapper.ActualWidth;
var height = (int)ImageWrapper.ActualHeight;
using (image = new Image <Rgba32>(width, height))
{
// Draw triangle
image.Mutate((ctx) =>
{
offset = new PointF(width / 2, height / 2);
// Define pens and inks
var pinkPen = Pens.Solid(Rgba32.ParseHex("#C0C0FF"), 2);
var greenPen = Pens.Solid(Rgba32.ParseHex("#228B22"), 1);
var blackPen = Pens.Solid(Rgba32.ParseHex("#000000"), 1);
var blackTransPen = Pens.Solid(Rgba32.ParseHex("#00005050"), 1);
var pinkBrush = Brushes.Solid(Rgba32.ParseHex("#C71585"));
var points = new List <PointF>();
try
{
// Get parameter a
float a = float.Parse(ParamA.Text);
// Quality and scale
float quality = (float)ParamB.Value;
scale = (float)ScaleSlider.Value;
if (AxisCheckbox.IsChecked == true)
{
DrawAxis(ctx, width, height);
}
for (float i = -MathF.PI; i < MathF.PI; i += quality)
{
// x = a(t^2 - 1) / (t^2 + 1), y = at(t^2 - 1) / (t^2 + 1), t- infinite, а > 0
// t = i
var t = i;
// Find coords
var x = (a * (MathF.Pow(t, 2) - 1)) / (MathF.Pow(t, 2) + 1);
var y = a * t * (MathF.Pow(t, 2) - 1) / (MathF.Pow(t, 2) + 1);
// Convert to screen space
x = XToScreen(x);
y = YToScreen(y);
// Draw on the screen
PointF point = new PointF(x, y);
// Eliminate out of bounds exception
if (
!float.IsInfinity(y) &&
MathF.Abs(y) < height &&
!float.IsInfinity(x) &&
MathF.Abs(x) < width
)
{
points.Add(point);
}
}
ctx.DrawLines(pinkPen, points.ToArray());
}
catch (Exception err)
{
}
});
// Set the source
ImageControl.Source = Helpers.ImageToBitmap(image);
}
}
}
/// <summary>
/// Draws the text using the supplied text options onto the image filled via the brush.
/// </summary>
/// <param name="source">The image processing context.</param>
/// <param name="textOptions">The text rendering options.</param>
/// <param name="text">The text to draw.</param>
/// <param name="color">The color.</param>
/// <returns>The <see cref="IImageProcessingContext"/> to allow chaining of operations.</returns>
public static IImageProcessingContext DrawText(
this IImageProcessingContext source,
TextOptions textOptions,
string text,
Color color) =>
source.DrawText(textOptions, text, Brushes.Solid(color), null);
public void Draw()
{
if (ImageWrapper != null)
{
var width = (int)ImageWrapper.ActualWidth;
var height = (int)ImageWrapper.ActualHeight;
using (image = new Image <Rgba32>(width, height))
{
// Draw triangle
image.Mutate((x) =>
{
// Define pens and inks
var sss = new Pen(Rgba32.ParseHex("#FFC0CB"), 10, new float[] { 2f, 6f, 8f });
var pinkPen = Pens.Solid(Rgba32.ParseHex("#FFC0CB"), 10);
var greenPen = Pens.Solid(Rgba32.ParseHex("#228B22"), 10);
var blackPen = Pens.Solid(Rgba32.ParseHex("#000000"), 10);
var pinkBrush = Brushes.Solid(Rgba32.ParseHex("#C71585"));
Image img = Image.Load("Resources\\cat.jpg");
img.Mutate((x) =>
{
x.Resize(
128,
(x.GetCurrentSize().Height / x.GetCurrentSize().Width) * 128);
});
var CatBrush = new ImageBrush(img);
// Draw a Line
x.DrawLines(pinkPen, new PointF[] {
new PointF(30, 30),
new PointF(100, 30)
});
// Draw a Triangle
x.FillPolygon(CatBrush, new PointF[] {
new PointF(50, 50),
new PointF(500, 30),
new PointF(555, 555),
});
// Draw a star x y numberofcorners innerradius outerradius
Star star = new Star(50, 50, 5, 50, 100);
var staroutline = Outliner.GenerateOutline(star, 2, JointStyle.Round);
x.Fill(CatBrush, star);
// Draw an arc
var arc = new Polygon(new CubicBezierLineSegment(new PointF[] {
new PointF(10, 400),
new PointF(30, 10),
new PointF(240, 30),
new PointF(300, 400)
}));
x.Draw(blackPen, arc);
// Draw some Ellipse
var sector = new EllipsePolygon(200, 200, 10, 20).Scale(5);
x.Draw(blackPen, sector);
});
// Set the source
ImageControl.Source = Helpers.ImageToBitmap(image);
}
}
}
