/// <summary>
/// Constructs a new rectangular region of interest, specifying an <see cref="IBoundableGraphic"/> as the source of the definition and pixel data.
/// </summary>
/// <param name="rectangle">The rectangular graphic that represents the region of interest.</param>
public RectangularRoi(IBoundableGraphic rectangle) : base(rectangle.ParentPresentationImage)
{
rectangle.CoordinateSystem = CoordinateSystem.Source;
try
{
// note that this is the rectangle complete with orientation information
_rectangle = rectangle.Rectangle;
}
finally
{
rectangle.ResetCoordinateSystem();
}
}
/// <summary>
/// Constructs a new rectangular region of interest, specifying an <see cref="IBoundableGraphic"/> as the source of the definition and pixel data.
/// </summary>
/// <param name="rectangle">The rectangular graphic that represents the region of interest.</param>
public RectangularRoi(IBoundableGraphic rectangle) : base(rectangle.ParentPresentationImage)
{
rectangle.CoordinateSystem = CoordinateSystem.Source;
try
{
// note that this is the rectangle complete with orientation information
_rectangle = rectangle.Rectangle;
}
finally
{
rectangle.ResetCoordinateSystem();
}
}
/// <summary>
/// Constructs a new elliptical region of interest, specifying an <see cref="IBoundableGraphic"/> as the source of the definition and pixel data.
/// </summary>
/// <param name="ellipse">The elliptical graphic that represents the region of interest.</param>
public EllipticalRoi(IBoundableGraphic ellipse)
: base(ellipse.ParentPresentationImage)
{
ellipse.CoordinateSystem = CoordinateSystem.Source;
try
{
_bounds = ellipse.Rectangle;
a = _bounds.Width / 2;
b = _bounds.Height / 2;
a2 = a * a;
b2 = b * b;
h = _bounds.Left + a;
k = _bounds.Top + b;
}
finally
{
ellipse.ResetCoordinateSystem();
}
}
/// <summary>
/// Constructs a new elliptical region of interest, specifying an <see cref="IBoundableGraphic"/> as the source of the definition and pixel data.
/// </summary>
/// <param name="ellipse">The elliptical graphic that represents the region of interest.</param>
public EllipticalRoi(IBoundableGraphic ellipse)
: base(ellipse.ParentPresentationImage)
{
ellipse.CoordinateSystem = CoordinateSystem.Source;
try
{
_bounds = ellipse.Rectangle;
a = _bounds.Width/2;
b = _bounds.Height/2;
a2 = a*a;
b2 = b*b;
h = _bounds.Left + a;
k = _bounds.Top + b;
}
finally
{
ellipse.ResetCoordinateSystem();
}
}
/// <summary>
/// Draws an ellipse primitive to the specified destination buffer.
/// </summary>
/// <param name="buffer">The destination buffer.</param>
/// <param name="pen">A GDI pen to use for drawing.</param>
/// <param name="ellipse">The ellipse primitive to be drawn.</param>
/// <param name="dpi">The intended output DPI.</param>
public static void DrawEllipsePrimitive(IGdiBuffer buffer, Pen pen, IBoundableGraphic ellipse, float dpi = _nominalScreenDpi)
{
buffer.Graphics.Transform = ellipse.SpatialTransform.CumulativeTransform;
ellipse.CoordinateSystem = CoordinateSystem.Source;
buffer.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
try
{
var rectangle = new RectangleF(ellipse.TopLeft.X, ellipse.TopLeft.Y, ellipse.Width, ellipse.Height);
rectangle = RectangleUtilities.ConvertToPositiveRectangle(rectangle);
var dropShadowOffset = GetDropShadowOffset(ellipse, dpi);
// Draw drop shadow
pen.Color = Color.Black;
pen.Width = CalculateScaledPenWidth(ellipse, 1, dpi);
SetDashStyle(pen, ellipse);
buffer.Graphics.DrawEllipse(
pen,
rectangle.Left + dropShadowOffset.Width,
rectangle.Top + dropShadowOffset.Height,
rectangle.Width,
rectangle.Height);
// Draw rectangle
pen.Color = ellipse.Color;
buffer.Graphics.DrawEllipse(
pen,
rectangle.Left,
rectangle.Top,
rectangle.Width,
rectangle.Height);
}
finally
{
buffer.Graphics.SmoothingMode = SmoothingMode.None;
ellipse.ResetCoordinateSystem();
buffer.Graphics.ResetTransform();
}
}
private void InternalDrawEllipsePrimitive(IBoundableGraphic ellipse)
{
Surface.FinalBuffer.Graphics.Transform = ellipse.SpatialTransform.CumulativeTransform;
ellipse.CoordinateSystem = CoordinateSystem.Source;
Surface.FinalBuffer.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
RectangleF rectangle = new RectangleF(ellipse.TopLeft.X, ellipse.TopLeft.Y, ellipse.Width, ellipse.Height);
rectangle = RectangleUtilities.ConvertToPositiveRectangle(rectangle);
SizeF dropShadowOffset = GetDropShadowOffset(ellipse, Dpi);
// Draw drop shadow
_pen.Color = Color.Black;
_pen.Width = CalculateScaledPenWidth(ellipse, 1, Dpi);
SetDashStyle(ellipse);
Surface.FinalBuffer.Graphics.DrawEllipse(
_pen,
rectangle.Left + dropShadowOffset.Width,
rectangle.Top + dropShadowOffset.Height,
rectangle.Width,
rectangle.Height);
// Draw rectangle
_pen.Color = ellipse.Color;
Surface.FinalBuffer.Graphics.DrawEllipse(
_pen,
rectangle.Left,
rectangle.Top,
rectangle.Width,
rectangle.Height);
ellipse.ResetCoordinateSystem();
Surface.FinalBuffer.Graphics.ResetTransform();
}
private void InternalDrawEllipsePrimitive(IBoundableGraphic ellipse)
{
Surface.FinalBuffer.Graphics.Transform = ellipse.SpatialTransform.CumulativeTransform;
ellipse.CoordinateSystem = CoordinateSystem.Source;
Surface.FinalBuffer.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
RectangleF rectangle = new RectangleF(ellipse.TopLeft.X, ellipse.TopLeft.Y, ellipse.Width, ellipse.Height);
rectangle = RectangleUtilities.ConvertToPositiveRectangle(rectangle);
SizeF dropShadowOffset = GetDropShadowOffset(ellipse, Dpi);
// Draw drop shadow
_pen.Color = Color.Black;
_pen.Width = CalculateScaledPenWidth(ellipse, 1, Dpi);
SetDashStyle(ellipse);
Surface.FinalBuffer.Graphics.DrawEllipse(
_pen,
rectangle.Left + dropShadowOffset.Width,
rectangle.Top + dropShadowOffset.Height,
rectangle.Width,
rectangle.Height);
// Draw rectangle
_pen.Color = ellipse.Color;
Surface.FinalBuffer.Graphics.DrawEllipse(
_pen,
rectangle.Left,
rectangle.Top,
rectangle.Width,
rectangle.Height);
ellipse.ResetCoordinateSystem();
Surface.FinalBuffer.Graphics.ResetTransform();
}
/// <summary>
/// Draws an ellipse primitive to the specified destination buffer.
/// </summary>
/// <param name="buffer">The destination buffer.</param>
/// <param name="pen">A GDI pen to use for drawing.</param>
/// <param name="ellipse">The ellipse primitive to be drawn.</param>
/// <param name="dpi">The intended output DPI.</param>
public static void DrawEllipsePrimitive(IGdiBuffer buffer, Pen pen, IBoundableGraphic ellipse, float dpi = _nominalScreenDpi)
{
buffer.Graphics.Transform = ellipse.SpatialTransform.CumulativeTransform;
ellipse.CoordinateSystem = CoordinateSystem.Source;
buffer.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
try
{
var rectangle = new RectangleF(ellipse.TopLeft.X, ellipse.TopLeft.Y, ellipse.Width, ellipse.Height);
rectangle = RectangleUtilities.ConvertToPositiveRectangle(rectangle);
var dropShadowOffset = GetDropShadowOffset(ellipse, dpi);
// Draw drop shadow
pen.Color = Color.Black;
pen.Width = CalculateScaledPenWidth(ellipse, 1, dpi);
SetDashStyle(pen, ellipse);
buffer.Graphics.DrawEllipse(
pen,
rectangle.Left + dropShadowOffset.Width,
rectangle.Top + dropShadowOffset.Height,
rectangle.Width,
rectangle.Height);
// Draw rectangle
pen.Color = ellipse.Color;
buffer.Graphics.DrawEllipse(
pen,
rectangle.Left,
rectangle.Top,
rectangle.Width,
rectangle.Height);
}
finally
{
buffer.Graphics.SmoothingMode = SmoothingMode.None;
ellipse.ResetCoordinateSystem();
buffer.Graphics.ResetTransform();
}
}