Class BezierKnotRecord

BezierKnotRecord class

Bezier Knot Record Class, used to read/write Bezier knots data from resource.

public class BezierKnotRecord : VectorPathRecord

Constructors

NameDescription
BezierKnotRecord()Initializes a new instance of the BezierKnotRecord class.
BezierKnotRecord(byte[])Initializes a new instance of the BezierKnotRecord class.

Properties

NameDescription
IsClosed { get; set; }Gets or sets a value indicating whether this instance is closed.
IsLinked { get; set; }Gets or sets a value indicating whether this instance is linked.
IsOpen { get; set; }Gets or sets a value indicating whether this instance is open.
PathPoints { get; set; }Gets or sets the path points.
Points { get; set; }Gets or sets the points.
override Type { get; }Gets the type.

Examples

The following example demonstrates the support of VmskResource resource loading. How works the editing of paths.

[C#]

[Test]
public void TestPsdNet106()
{
    string sourceFileName = "Rectangle.psd";
    string exportPath = "Rectangle_changed.psd";
    var im = (PsdImage)Image.Load(sourceFileName);
    using (im)
    {
        var resource = GetVmskResource(im);
        // Reading
        if (resource.IsDisabled != false ||
         resource.IsInverted != false ||
         resource.IsNotLinked != false ||
         resource.Paths.Length != 7 ||
         resource.Paths[0].Type != VectorPathType.PathFillRuleRecord ||
         resource.Paths[1].Type != VectorPathType.InitialFillRuleRecord ||
         resource.Paths[2].Type != VectorPathType.ClosedSubpathLengthRecord ||
         resource.Paths[3].Type != VectorPathType.ClosedSubpathBezierKnotUnlinked ||
         resource.Paths[4].Type != VectorPathType.ClosedSubpathBezierKnotUnlinked ||
         resource.Paths[5].Type != VectorPathType.ClosedSubpathBezierKnotUnlinked ||
         resource.Paths[6].Type != VectorPathType.ClosedSubpathBezierKnotUnlinked)
        {
            throw new Exception("VmskResource was read wrong");
        }
        var pathFillRule = (PathFillRuleRecord)resource.Paths[0];
        var initialFillRule = (InitialFillRuleRecord)resource.Paths[1];
        var subpathLength = (LengthRecord)resource.Paths[2];
        // Path fill rule doesn't contain any additional information
        if (pathFillRule.Type != VectorPathType.PathFillRuleRecord ||
         initialFillRule.Type != VectorPathType.InitialFillRuleRecord ||
         initialFillRule.IsFillStartsWithAllPixels != false ||
         subpathLength.Type != VectorPathType.ClosedSubpathLengthRecord ||
         subpathLength.IsClosed != true ||
         subpathLength.IsOpen != false)
        {
            throw new Exception("VmskResource paths were read wrong");
        }
        // Editing
        resource.IsDisabled = true;
        resource.IsInverted = true;
        resource.IsNotLinked = true;
        var bezierKnot = (BezierKnotRecord)resource.Paths[3];
        bezierKnot.Points[0] = new Point(0, 0);
        bezierKnot = (BezierKnotRecord)resource.Paths[4];
        bezierKnot.Points[0] = new Point(8039797, 10905190);
        initialFillRule.IsFillStartsWithAllPixels = true;
        subpathLength.IsClosed = false;
        im.Save(exportPath);
    }
}

private VmskResource GetVmskResource(PsdImage image)
{
    var layer = image.Layers[1];
    VmskResource resource = null;
    var resources = layer.Resources;
    for (int i = 0; i < resources.Length; i++)
    {
        if (resources[i] is VmskResource)
        {
            resource = (VmskResource)resources[i];
            break;
        }
    }
    if (resource == null)
    {
        throw new Exception("VmskResource not found");
    }
    return resource;
}

The following example demonstrates the support of VsmsResource resource loading. How works the editing of paths.

[C#]

[Test]
public void TestPsdNet140()
{
    // VsmsResource Support
    string sourceFileName = "EmptyRectangle.psd";
    string exportPath = "EmptyRectangle_changed.psd";
    var im = (PsdImage)Image.Load(sourceFileName);
    using (im)
    {
        var resource = GetVsmsResource(im);
        // Reading
        if (resource.IsDisabled != false ||
            resource.IsInverted != false ||
            resource.IsNotLinked != false ||
            resource.Paths.Length != 7 ||
            resource.Paths[0].Type != VectorPathType.PathFillRuleRecord ||
            resource.Paths[1].Type != VectorPathType.InitialFillRuleRecord ||
            resource.Paths[2].Type != VectorPathType.ClosedSubpathLengthRecord ||
            resource.Paths[3].Type != VectorPathType.ClosedSubpathBezierKnotUnlinked ||
            resource.Paths[4].Type != VectorPathType.ClosedSubpathBezierKnotUnlinked ||
            resource.Paths[5].Type != VectorPathType.ClosedSubpathBezierKnotUnlinked ||
            resource.Paths[6].Type != VectorPathType.ClosedSubpathBezierKnotUnlinked)
        {
            throw new Exception("VsmsResource was read wrong");
        }

        var pathFillRule = (PathFillRuleRecord)resource.Paths[0];
        var initialFillRule = (InitialFillRuleRecord)resource.Paths[1];
        var subpathLength = (LengthRecord)resource.Paths[2];

        // Path fill rule doesn't contain any additional information
        if (pathFillRule.Type != VectorPathType.PathFillRuleRecord ||
        initialFillRule.Type != VectorPathType.InitialFillRuleRecord ||
        initialFillRule.IsFillStartsWithAllPixels != false ||
        subpathLength.Type != VectorPathType.ClosedSubpathLengthRecord ||
        subpathLength.IsClosed != true ||
        subpathLength.IsOpen != false)
        {
            throw new Exception("VsmsResource paths were read wrong");
        }

        // Editing
        resource.IsDisabled = true;
        resource.IsInverted = true;
        resource.IsNotLinked = true;
        var bezierKnot = (BezierKnotRecord)resource.Paths[3];
        bezierKnot.Points[0] = new Point(0, 0);
        bezierKnot = (BezierKnotRecord)resource.Paths[4];
        bezierKnot.Points[0] = new Point(8039798, 10905191);
        initialFillRule.IsFillStartsWithAllPixels = true;
        subpathLength.IsClosed = false;
        im.Save(exportPath);
    }
}

private VsmsResource GetVsmsResource(PsdImage image)
{
    var layer = image.Layers[1];
    VsmsResource resource = null;
    var resources = layer.Resources;
    for (int i = 0; i < resources.Length; i++)
    {
        if (resources[i] is VsmsResource)
        {
            resource = (VsmsResource)resources[i];
            break;
        }
    }
    if (resource == null)
    {
        throw new Exception("VsmsResource not found");
    }
    return resource;
}

See Also

Class ClipboardRecord