PointsFromImageSpaceToPageSpace(PointF[],Resolution) Method (PdfPage)

In This Topic

Converts points from image coordinate space to PDF page coordinate space taking into account the image resolution, PDF page crop box, PDF page media box and PDF page rotation.

Syntax

Visual Basic
C#
Managed Extensions for C++
C++/CLI

'Declaration

Public Sub PointsFromImageSpaceToPageSpace( _
   ByVal pointsProvides points, in the image's coordinate space, to convert; returns the converted points, in the PDF page's coordinate space.
() As System.Drawing.PointF, _
   ByVal imageResolutionResolution of the image coordinate space.
 As Vintasoft.Imaging.Resolution _
)

public void PointsFromImageSpaceToPageSpace(
   System.Drawing.PointF[] points, 
   Vintasoft.Imaging.Resolution imageResolution
)

public: void PointsFromImageSpaceToPageSpace(
   System.Drawing.PointF[]* points, 
   Vintasoft.Imaging.Resolution imageResolution
)

public:
void PointsFromImageSpaceToPageSpace(
   array<System.Drawing.PointF>^ points, 
   Vintasoft.Imaging.Resolution imageResolution
)

Parameters

points: Provides points, in the image's coordinate space, to convert; returns the converted points, in the PDF page's coordinate space.
imageResolution: Resolution of the image coordinate space.

Example

Here is an example that shows how to convert the rectangle coordinates from the image coordinate space to the PDF page coordinate space:

VB.NET


''' <summary>
''' Converts the rectangle from image space to page space.
''' </summary>
''' <param name="rect">Rectangle in image space.</param>
''' <param name="imageResolution">The image resolution.</param>
''' <param name="page">The PDF page.</param>
''' <returns><see cref="System.Drawing.RectangleF"/> structure in PDF page space.</returns>
Public Shared Function ConvertRectangleFromImageSpaceToPageSpace(rect As System.Drawing.RectangleF, imageResolution As Vintasoft.Imaging.Resolution, page As Vintasoft.Imaging.Pdf.Tree.PdfPage) As System.Drawing.RectangleF
    ' Rectangle -> PointF[]
    Dim points As System.Drawing.PointF() = New System.Drawing.PointF() {rect.Location, New System.Drawing.PointF(rect.X + rect.Width, rect.Y + rect.Height)}

    ' ImageSpace -> PageSpace
    page.PointsFromImageSpaceToPageSpace(points, imageResolution)

    ' Points -> RectangleF
    Dim x0 As Single = System.Math.Min(points(0).X, points(1).X)
    Dim y0 As Single = System.Math.Min(points(0).Y, points(1).Y)
    Dim x1 As Single = System.Math.Max(points(0).X, points(1).X)
    Dim y1 As Single = System.Math.Max(points(0).Y, points(1).Y)
    Return New System.Drawing.RectangleF(x0, y0, x1 - x0, y1 - y0)
End Function


/// <summary>
/// Converts the rectangle from image space to page space.
/// </summary>
/// <param name="rect">Rectangle in image space.</param>
/// <param name="imageResolution">The image resolution.</param>
/// <param name="page">The PDF page.</param>
/// <returns><see cref="System.Drawing.RectangleF"/> structure in PDF page space.</returns>
public static System.Drawing.RectangleF ConvertRectangleFromImageSpaceToPageSpace(
    System.Drawing.RectangleF rect,
    Vintasoft.Imaging.Resolution imageResolution,
    Vintasoft.Imaging.Pdf.Tree.PdfPage page)
{
    // Rectangle -> PointF[]
    System.Drawing.PointF[] points = new System.Drawing.PointF[] { 
        rect.Location, 
        new System.Drawing.PointF(rect.X + rect.Width, rect.Y + rect.Height) };

    // ImageSpace -> PageSpace
    page.PointsFromImageSpaceToPageSpace(points, imageResolution);

    // Points -> RectangleF
    float x0 = System.Math.Min(points[0].X, points[1].X);
    float y0 = System.Math.Min(points[0].Y, points[1].Y);
    float x1 = System.Math.Max(points[0].X, points[1].X);
    float y1 = System.Math.Max(points[0].Y, points[1].Y);
    return new System.Drawing.RectangleF(x0, y0, x1 - x0, y1 - y0);
}

Requirements

Target Platforms: .NET9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

Reference

PdfPage Class
PdfPage Members

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