public static void RenderDebugAABB(this WorldView worldView, Graphics2D graphics2D, AxisAlignedBoundingBox bounds)
{
Vector3 renderPosition = bounds.Center;
Vector2 objectCenterScreenSpace = worldView.GetScreenPosition(renderPosition);
Point2D screenPositionOfObject3D = new Point2D((int)objectCenterScreenSpace.X, (int)objectCenterScreenSpace.Y);
graphics2D.Circle(objectCenterScreenSpace, 5, Color.Magenta);
for (int i = 0; i < 4; i++)
{
graphics2D.Circle(worldView.GetScreenPosition(bounds.GetTopCorner(i)), 5, Color.Magenta);
graphics2D.Circle(worldView.GetScreenPosition(bounds.GetBottomCorner(i)), 5, Color.Magenta);
}
RectangleDouble screenBoundsOfObject3D = RectangleDouble.ZeroIntersection;
for (int i = 0; i < 4; i++)
{
screenBoundsOfObject3D.ExpandToInclude(worldView.GetScreenPosition(bounds.GetTopCorner(i)));
screenBoundsOfObject3D.ExpandToInclude(worldView.GetScreenPosition(bounds.GetBottomCorner(i)));
}
graphics2D.Circle(screenBoundsOfObject3D.Left, screenBoundsOfObject3D.Bottom, 5, Color.Cyan);
graphics2D.Circle(screenBoundsOfObject3D.Left, screenBoundsOfObject3D.Top, 5, Color.Cyan);
graphics2D.Circle(screenBoundsOfObject3D.Right, screenBoundsOfObject3D.Bottom, 5, Color.Cyan);
graphics2D.Circle(screenBoundsOfObject3D.Right, screenBoundsOfObject3D.Top, 5, Color.Cyan);
}
public FloodFillDemo()
{
BackgroundColor = RGBA_Bytes.White;
imageToFillOn = new ImageBuffer(400, 300, 32, new BlenderBGRA());
Graphics2D imageToFillGraphics = imageToFillOn.NewGraphics2D();
imageToFillGraphics.Clear(RGBA_Bytes.White);
imageToFillGraphics.DrawString("Click to fill", 20, 30);
imageToFillGraphics.Circle(new Vector2(200, 150), 35, RGBA_Bytes.Black);
imageToFillGraphics.Circle(new Vector2(200, 150), 30, RGBA_Bytes.Green);
imageToFillGraphics.Rectangle(20, 50, 210, 280, RGBA_Bytes.Black);
imageToFillGraphics.Rectangle(imageToFillOn.GetBounds(), RGBA_Bytes.Blue);
Random rand = new Random();
for (int i = 0; i < 20; i++)
{
Ellipse elipse = new Ellipse(rand.Next(imageToFillOn.Width), rand.Next(imageToFillOn.Height), rand.Next(10, 60), rand.Next(10, 60));
Stroke outline = new Stroke(elipse);
imageToFillGraphics.Render(outline, RGBA_Bytes.Black);
}
m_slider1 = new Slider(new Vector2(80, 10), 510);
m_slider2 = new Slider(new Vector2(80, 10 + 20), 510);
m_slider1.ValueChanged += new EventHandler(NeedsRedraw);
m_slider2.ValueChanged += new EventHandler(NeedsRedraw);
AddChild(m_slider1);
AddChild(m_slider2);
m_slider1.Text = "Pixel size={0:F3}";
m_slider1.SetRange(8, 100);
m_slider1.NumTicks = 23;
m_slider1.Value = 32;
m_slider2.Text = "gamma={0:F3}";
m_slider2.SetRange(0.0, 3.0);
m_slider2.Value = 1.0;
}
public RandomFillWidget(Point2D size)
{
LocalBounds = new RectangleDouble(0, 0, size.x, size.y);
image = new ImageBuffer(size.x, size.y, 32, new BlenderBGRA());
Random rand = new Random();
Graphics2D imageGraphics = image.NewGraphics2D();
for (int i = 0; i < 30; i++)
{
imageGraphics.Circle(rand.NextDouble() * image.Width, rand.NextDouble() * image.Height, rand.NextDouble() * 10 + 5, RGBA_Bytes.Red);
}
}
// and just for fun lets also draw a circle
public override void OnDraw(Graphics2D graphics2D)
{
graphics2D.Circle(320, 100, 50, RGBA_Bytes.Blue);
base.OnDraw(graphics2D);
}
public override void OnDraw(Graphics2D graphics2D)
{
graphics2D.Circle(Width / 2, Height / 2, Width / 2, RGBA_Bytes.White);
graphics2D.Circle(Width / 2, Height / 2, Width / 2 - 1, RGBA_Bytes.Red);
graphics2D.FillRectangle(Width / 2 - 1, Height / 2 - 3, Width / 2 + 1, Height / 2 + 3, RGBA_Bytes.White);
base.OnDraw(graphics2D);
}
public static void Main(string[] args)
{
// first we will show how to use the simple drawing functions in graphics 2D
{
ImageBuffer simpleImage = new ImageBuffer(640, 480, 32, new BlenderBGRA());
Graphics2D simpleImageGraphics2D = simpleImage.NewGraphics2D();
// clear the image to white
simpleImageGraphics2D.Clear(Color.White);
// draw a circle
simpleImageGraphics2D.Circle(50, 50, 30, Color.Blue);
// draw a line
simpleImageGraphics2D.Line(10, 100, 520, 50, new Color(20, 200, 200));
// draw a filled box
simpleImageGraphics2D.FillRectangle(60, 260, 200, 280, Color.Yellow);
// and an outline around it
simpleImageGraphics2D.Rectangle(60, 260, 200, 280, Color.Magenta);
// draw some text
simpleImageGraphics2D.DrawString("A Simple Example", 300, 400, 20);
// and save this image out
ImageTgaIO.Save(simpleImage, "SimpleDrawAndSave.tga");
}
// now we will we will show how to use the render function to draw more complex things
{
ImageBuffer lessSimpleImage = new ImageBuffer(640, 480, 32, new BlenderBGRA());
Graphics2D lessSimpleImageGraphics2D = lessSimpleImage.NewGraphics2D();
// clear the image to white
lessSimpleImageGraphics2D.Clear(Color.White);
// draw a circle
Ellipse ellipseTest = new Ellipse(0, 0, 100, 50);
for (double angleDegrees = 0; angleDegrees < 180; angleDegrees += 22.5)
{
VertexSourceApplyTransform rotatedTransform = new VertexSourceApplyTransform(ellipseTest, Affine.NewRotation(MathHelper.DegreesToRadians(angleDegrees)));
VertexSourceApplyTransform rotatedAndTranslatedTransform = new VertexSourceApplyTransform(rotatedTransform, Affine.NewTranslation(lessSimpleImage.Width / 2, 150));
lessSimpleImageGraphics2D.Render(rotatedAndTranslatedTransform, Color.Yellow);
Stroke ellipseOutline = new Stroke(rotatedAndTranslatedTransform, 3);
lessSimpleImageGraphics2D.Render(ellipseOutline, Color.Blue);
}
// and a little polygon
VertexStorage littlePoly = new VertexStorage();
littlePoly.MoveTo(50, 50);
littlePoly.LineTo(150, 50);
littlePoly.LineTo(200, 200);
littlePoly.LineTo(50, 150);
littlePoly.LineTo(50, 50);
lessSimpleImageGraphics2D.Render(littlePoly, Color.Cyan);
// draw some text
TypeFacePrinter textPrinter = new TypeFacePrinter("Printing from a printer", 30, justification: Justification.Center);
IVertexSource translatedText = new VertexSourceApplyTransform(textPrinter, Affine.NewTranslation(new Vector2(lessSimpleImage.Width / 2, lessSimpleImage.Height / 4 * 3)));
lessSimpleImageGraphics2D.Render(translatedText, Color.Red);
Stroke strokedText = new Stroke(translatedText);
lessSimpleImageGraphics2D.Render(strokedText, Color.Black);
IVertexSource rotatedText = new VertexSourceApplyTransform(textPrinter, Affine.NewRotation(MathHelper.DegreesToRadians(90)));
IVertexSource rotatedTranslatedText = new VertexSourceApplyTransform(rotatedText, Affine.NewTranslation(new Vector2(40, lessSimpleImage.Height / 2)));
lessSimpleImageGraphics2D.Render(rotatedTranslatedText, Color.Black);
// and save this image out
ImageTgaIO.Save(lessSimpleImage, "LessSimpleDrawAndSave.tga");
}
}
// and just for fun lets also draw a circle
public override void OnDraw(Graphics2D graphics2D)
{
graphics2D.Circle(320, 100, 50, Color.Blue);
base.OnDraw(graphics2D);
}
public override void OnDraw(Graphics2D graphics2D)
{
graphics2D.Circle(Width / 2, Height / 2, Width / 2, RGBA_Bytes.White);
graphics2D.Circle(Width / 2, Height / 2, Width / 2 - 1, RGBA_Bytes.Red);
graphics2D.FillRectangle(Width / 2 - 1, Height / 2 - 3, Width / 2 + 1, Height / 2 + 3, RGBA_Bytes.White);
//graphics2D.DrawString("1", Width / 2, Height / 2 + 1, 8, Justification.Center, Baseline.BoundsCenter, RGBA_Bytes.White);
base.OnDraw(graphics2D);
}
// and just for fun lets also draw a circle
public override void OnDraw(Graphics2D graphics2D)
{
graphics2D.Circle(320, 100, 50, RGBA_Bytes.Blue);
base.OnDraw(graphics2D);
}