XColor Components Property. The components of the color in native PDF format. ABCpdf .NET PDF Library.

The components of the color in native PDF format.

PDF color components typically range between zero - no intensity - and one - 100% intensity. However this is not always the case. For color spaces such as Lab the components may take a wider range of values.

In the following example we demonstrate how to use generic color components to draw in the Lab color space.

[C#]
using (Doc doc = new Doc()) {
  doc.Width = 80;
  doc.Rect.Inset(50, 50);
  ColorSpace cs = new ColorSpace(doc.ObjectSoup, ColorSpaceType.Lab);
  doc.ColorSpace = cs.ID;
  // This Lab color is a deep green
  doc.Color.ColorSpace = ColorOperatorType.ColorSpace;
  doc.Color.Components[0] = 50; // L range is 0 to +100
  doc.Color.Components[1] = -50; // a range is -100 to +100
  doc.Color.Components[2] = +50; // B range is -100 to +100
  doc.AddOval(true);
  doc.Save("examplelabcolorspace.pdf");
}

[Visual Basic]
  Using doc As New Doc()
    doc.Width = 80
    doc.Rect.Inset(50, 50)
    Dim cs As New ColorSpace(doc.ObjectSoup, ColorSpaceType.Lab)
    doc.ColorSpace = cs.ID
    ' This Lab color is a deep green
    doc.Color.ColorSpace = ColorOperatorType.ColorSpace
    doc.Color.Components(0) = 50
    ' L range is 0 to +100
    doc.Color.Components(1) = -50
    ' a range is -100 to +100
    doc.Color.Components(2) = +50
    ' B range is -100 to +100
    doc.AddOval(True)
    doc.Save("examplelabcolorspace.pdf")
  End Using
End Sub


examplelabcolorspace.pdf