Class PdfRadialGradientBrush
Represent radial gradient brush.
Implements
Inherited Members
Namespace: Syncfusion.Pdf.Graphics
Assembly: Syncfusion.Pdf.Portable.dll
Syntax
public class PdfRadialGradientBrush : PdfGradientBrush, ICloneable, IPdfWrapper
Examples
//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create new PDF gradient brush.
PdfRadialGradientBrush brush = new PdfRadialGradientBrush(new PointF(50, 50), 0, new PointF(50, 50), 50, Color.Red, Color.Blue);
//Draw the ellipse.
graphics.DrawEllipse(brush, new RectangleF(0, 0, 100, 100));
//Save the document.
doc.Save("Output.pdf");
//Close the document.
doc.Close(true);
'Create a new PDF document.
Dim doc As New PdfDocument()
'Add a page to the document.
Dim page As PdfPage = doc.Pages.Add()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create new PDF gradient brush.
Dim brush As New PdfRadialGradientBrush(New PointF(50, 50), 0, New PointF(50, 50), 50, Color.Red, Color.Blue)
'Draw the ellipse.
graphics.DrawEllipse(brush, New RectangleF(0, 0, 100, 100))
'Save the document.
doc.Save("Output.pdf")
'Close the document.
doc.Close(True)
Constructors
PdfRadialGradientBrush(PointF, Single, PointF, Single, PdfColor, PdfColor)
Initializes a new instance of the PdfRadialGradientBrush class.
Declaration
public PdfRadialGradientBrush(PointF centreStart, float radiusStart, PointF centreEnd, float radiusEnd, PdfColor colorStart, PdfColor colorEnd)
Parameters
Type | Name | Description |
---|---|---|
PointF | centreStart | The start centre. |
System.Single | radiusStart | The start radius. |
PointF | centreEnd | The end centre. |
System.Single | radiusEnd | The end radius. |
PdfColor | colorStart | The start color. |
PdfColor | colorEnd | The end color. |
Examples
//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create new PDF gradient brush.
PdfRadialGradientBrush brush = new PdfRadialGradientBrush(new PointF(50, 50), 0, new PointF(50, 50), 50, Color.Red, Color.Blue);
//Draw the ellipse.
graphics.DrawEllipse(brush, new RectangleF(0, 0, 100, 100));
//Save the document.
doc.Save("Output.pdf");
//Close the document.
doc.Close(true);
'Create a new PDF document.
Dim doc As New PdfDocument()
'Add a page to the document.
Dim page As PdfPage = doc.Pages.Add()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create new PDF gradient brush.
Dim brush As New PdfRadialGradientBrush(New PointF(50, 50), 0, New PointF(50, 50), 50, Color.Red, Color.Blue)
'Draw the ellipse.
graphics.DrawEllipse(brush, New RectangleF(0, 0, 100, 100))
'Save the document.
doc.Save("Output.pdf")
'Close the document.
doc.Close(True)
Properties
Blend
Gets or sets a PdfBlend that specifies positions and factors that define a custom falloff for the gradient.
Declaration
public PdfBlend Blend { get; set; }
Property Value
Type |
---|
PdfBlend |
Examples
//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create new PDF gradient brush.
PdfRadialGradientBrush brush = new PdfRadialGradientBrush(new PointF(50, 50), 0, new PointF(50, 50), 50, Color.Red, Color.Blue);
//Create PDF blend
PdfBlend blend = new PdfBlend();
//Set factors
blend.Factors = new float[] {1};
//Set poistions
blend.Positions = new float[] {0};
//Set blend to the brush.
brush.Blend = blend;
//Draw the ellipse.
graphics.DrawEllipse(brush, new RectangleF(0, 0, 100, 100));
//Save the document.
doc.Save("Output.pdf");
//Close the document.
doc.Close(true);
'Create a new PDF document.
Dim doc As New PdfDocument()
'Add a page to the document.
Dim page As PdfPage = doc.Pages.Add()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create new PDF gradient brush.
Dim brush As New PdfRadialGradientBrush(New PointF(50, 50), 0, New PointF(50, 50), 50, Color.Red, Color.Blue)
'Create PDF blend
Dim blend As New PdfBlend()
'Set factors
blend.Factors = New Single() {1}
'Set poistions
blend.Positions = New Single() {0}
'Set blend to the brush.
brush.Blend = blend
'Draw the ellipse.
graphics.DrawEllipse(brush, New RectangleF(0, 0, 100, 100))
'Save the document.
doc.Save("Output.pdf")
'Close the document.
doc.Close(True)
Extend
Gets or sets the value indicating whether the gradient should extend starting and ending points.
Declaration
public PdfExtend Extend { get; set; }
Property Value
Type |
---|
PdfExtend |
Examples
//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create new PDF gradient brush.
PdfRadialGradientBrush brush = new PdfRadialGradientBrush(new PointF(50, 50), 0, new PointF(50, 50), 50, Color.Red, Color.Blue);
//Set the extend mode.
brush.Extend = PdfExtend.Both;
//Draw the ellipse.
graphics.DrawEllipse(brush, new RectangleF(0, 0, 100, 100));
//Save the document.
doc.Save("Output.pdf");
//Close the document.
doc.Close(true);
'Create a new PDF document.
Dim doc As New PdfDocument()
'Add a page to the document.
Dim page As PdfPage = doc.Pages.Add()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create new PDF gradient brush.
Dim brush As New PdfRadialGradientBrush(New PointF(50, 50), 0, New PointF(50, 50), 50, Color.Red, Color.Blue)
'Set the extend mode.
brush.Extend = PdfExtend.Both
'Draw the ellipse.
graphics.DrawEllipse(brush, New RectangleF(0, 0, 100, 100))
'Save the document.
doc.Save("Output.pdf")
'Close the document.
doc.Close(True)
InterpolationColors
Gets or sets a ColorBlend that defines a multicolor linear gradient.
Declaration
public PdfColorBlend InterpolationColors { get; set; }
Property Value
Type |
---|
PdfColorBlend |
Examples
//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create new PDF gradient brush.
PdfRadialGradientBrush brush = new PdfRadialGradientBrush(new PointF(50, 50), 0, new PointF(50, 50), 50, Color.Red, Color.Blue);
//Create PDF color blend
PdfColorBlend cblend = new PdfColorBlend();
//Set colors
cblend.Colors = new PdfColor[] { Color.Blue, Color.Red };
//Set poistions
cblend.Positions = new float[] { 0, 1 };
//Set internpolation colors to the brush.
brush.InterpolationColors = cblend;
//Draw the ellipse.
graphics.DrawEllipse(brush, new RectangleF(0, 0, 100, 100));
//Save the document.
doc.Save("Output.pdf");
//Close the document.
doc.Close(true);
'Create a new PDF document.
Dim doc As New PdfDocument()
'Add a page to the document.
Dim page As PdfPage = doc.Pages.Add()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create new PDF gradient brush.
Dim brush As New PdfRadialGradientBrush(New PointF(50, 50), 0, New PointF(50, 50), 50, Color.Red, Color.Blue)
'Create PDF color blend
Dim cblend As New PdfColorBlend()
'Set colors
cblend.Colors = New PdfColor() { Color.Blue, Color.Red}
'Set poistions
cblend.Positions = New Single() { 0, 1}
'Set internpolation colors to the brush.
brush.InterpolationColors = cblend
'Draw the ellipse.
graphics.DrawEllipse(brush, New RectangleF(0, 0, 100, 100))
'Save the document.
doc.Save("Output.pdf")
'Close the document.
doc.Close(True)
LinearColors
Gets or sets the starting and ending colors of the gradient.
Declaration
public PdfColor[] LinearColors { get; set; }
Property Value
Type |
---|
PdfColor[] |
Examples
//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create new PDF gradient brush.
PdfRadialGradientBrush brush = new PdfRadialGradientBrush(new PointF(50, 50), 0, new PointF(50, 50), 50, Color.Red, Color.Blue);
PdfColor startColor = new PdfColor(Color.Black);
PdfColor endColor = new PdfColor(Color.Green);
//Set linear colors.
brush.LinearColors = new PdfColor[] { startColor, endColor };
//Draw the ellipse.
graphics.DrawEllipse(brush, new RectangleF(0, 0, 100, 100));
//Save the document.
doc.Save("Output.pdf");
//Close the document.
doc.Close(true);
'Create a new PDF document.
Dim doc As New PdfDocument()
'Add a page to the document.
Dim page As PdfPage = doc.Pages.Add()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create new PDF gradient brush.
Dim brush As New PdfRadialGradientBrush(New PointF(50, 50), 0, New PointF(50, 50), 50, Color.Red, Color.Blue)
Dim startColor As New PdfColor(Color.Black)
Dim endColor As New PdfColor(Color.Green)
'Set linear colors.
brush.LinearColors = New PdfColor() { startColor, endColor}
'Draw the ellipse.
graphics.DrawEllipse(brush, New RectangleF(0, 0, 100, 100))
'Save the document.
doc.Save("Output.pdf")
'Close the document.
doc.Close(True)
Rectangle
Gets or sets the rectangle.
Declaration
public RectangleF Rectangle { get; set; }
Property Value
Type | Description |
---|---|
RectangleF | The rectangle. |
Examples
//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create new PDF gradient brush.
PdfRadialGradientBrush brush = new PdfRadialGradientBrush(new PointF(50, 50), 0, new PointF(50, 50), 50, Color.Red, Color.Blue);
//Draw the ellipse.
graphics.DrawEllipse(brush, new RectangleF(0, 0, 100, 100));
//Get the radial brush bounds.
RectangleF rect = brush.Rectangle;
//Save the document.
doc.Save("Output.pdf");
//Close the document.
doc.Close(true);
'Create a new PDF document.
Dim doc As New PdfDocument()
'Add a page to the document.
Dim page As PdfPage = doc.Pages.Add()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create new PDF gradient brush.
Dim brush As New PdfRadialGradientBrush(New PointF(50, 50), 0, New PointF(50, 50), 50, Color.Red, Color.Blue)
'Draw the ellipse.
graphics.DrawEllipse(brush, New RectangleF(0, 0, 100, 100))
'Get the radial brush bounds.
Dim rect As RectangleF = brush.Rectangle
'Save the document.
doc.Save("Output.pdf")
'Close the document.
doc.Close(True)
Methods
Clone()
Creates a new copy of a brush.
Declaration
public override PdfBrush Clone()
Returns
Type | Description |
---|---|
PdfBrush | A new instance of the Brush class. |
Overrides
Examples
//Create a new PDF document.
PdfDocument doc = new PdfDocument();
//Add a page to the document.
PdfPage page = doc.Pages.Add();
//Create PDF graphics for the page
PdfGraphics graphics = page.Graphics;
//Create new PDF gradient brush.
PdfRadialGradientBrush brush = new PdfRadialGradientBrush(new PointF(50, 50), 0, new PointF(50, 50), 50, Color.Red, Color.Blue);
//Draw the ellipse.
graphics.DrawEllipse(brush, new RectangleF(0, 0, 100, 100));
PdfColor startColor = new PdfColor(Color.Black);
PdfColor endColor = new PdfColor(Color.Green);
//Clone the existing brush.
PdfRadialGradientBrush cBrush = brush.Clone() as PdfRadialGradientBrush;
//Set linear colors.
cBrush.LinearColors = new PdfColor[] { startColor, endColor };
//Draw ellipse.
graphics.DrawEllipse(cBrush, new RectangleF(0, 150, 100, 100));
//Save the document.
doc.Save("Output.pdf");
//Close the document.
doc.Close(true);
'Create a new PDF document.
Dim doc As New PdfDocument()
'Add a page to the document.
Dim page As PdfPage = doc.Pages.Add()
'Create PDF graphics for the page
Dim graphics As PdfGraphics = page.Graphics
'Create new PDF gradient brush.
Dim brush As New PdfRadialGradientBrush(New PointF(50, 50), 0, New PointF(50, 50), 50, Color.Red, Color.Blue)
'Draw the ellipse.
graphics.DrawEllipse(brush, New RectangleF(0, 0, 100, 100))
'Clone the existing brush.
Dim cBrush As PdfRadialGradientBrush = TryCast(brush.Clone(), PdfRadialGradientBrush)
'Set linear colors.
cBrush.LinearColors = New PdfColor() { startColor, endColor}
'Draw rectangle.
graphics.DrawEllipse(cBrush, New RectangleF(0, 150, 100, 100))
'Save the document.
doc.Save("Output.pdf")
'Close the document.
doc.Close(True)