Matrix4x4 support?

Posted by: brian on 8 October 2020, 5:11 am EST

brian

Post Options:
Link
Copy

Posted 8 October 2020, 5:11 am EST

Sorry to pepper you with all these questions, but I really want to use your component and I have to figure out if it is capable of replacing existing functionality before we adopt it.

I see that the GcBitmapGraphics has a Transform property of Matrix3x2. Is there a way to apply a Matrix4x3 transform?

Today we allow ours users to “Taper” their image/text. I’m ultimately trying get a result like the following:

github.com

SixLabors/ImageSharp/blob/59f47d457b1c72d8ae2baa49fdf351932f7bb9fd/src/ImageSharp/Processing/Processors/Transforms/TransformUtils.cs#L81


      
          
          
/// <summary>
          /// Creates a matrix that performs a tapering projective transform.
          /// <see href="https://docs.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/graphics/skiasharp/transforms/non-affine"/>
          /// </summary>
          /// <param name="size">The rectangular size of the image being transformed.</param>
          /// <param name="side">An enumeration that indicates the side of the rectangle that tapers.</param>
          /// <param name="corner">An enumeration that indicates on which corners to taper the rectangle.</param>
          /// <param name="fraction">The amount to taper.</param>
          /// <returns>The <see cref="Matrix4x4"/></returns>
          public static Matrix4x4 CreateTaperMatrix(Size size, TaperSide side, TaperCorner corner, float fraction)
          {
              Matrix4x4 matrix = Matrix4x4.Identity;
          
          
    switch (side)
              {
                  case TaperSide.Left:
                      matrix.M11 = fraction;
                      matrix.M22 = fraction;
                      matrix.M13 = (fraction - 1) / size.Width;

Is there a way to accomplish this using your component?

prabhat.sharma
- Post Options:
- Link
  Copy
Posted 11 October 2020, 10:19 pm EST

Hi Brian,

We are discussing this with the developers and will get back to you once we get any update on this from the developers’ end. [Internal Tracking ID: DOC-2359]

Regards, Prabhat Sharma.
prabhat.sharma
- Post Options:
- Link
  Copy
Posted 13 December 2020, 1:29 pm EST

Hi Brian,

As per the developers, the transformation of type Matrix 4x4 is currently supported using the 3D transform effect for Windows only:

learn.microsoft.com

3D transform effect - Win32 apps

Use the 3D transform effect to apply an arbitrary 4x4 transform matrix to an image.

If the solution for Windows only can satisfy your requirement, please let me know.

Regards, Prabhat Sharma.

Please login to reply to thread

Need extra support?

Upgrade your support plan and get personal unlimited phone support with our customer engagement team

Learn More

Forum Channels

ComponentOne

Forums for all current editions of the ComponentOne .NET UI control product line, including ComponentOne Studio and ComponentOne Studio for Xamarin.
ActiveReports

Forums for all versions of ActiveReports and ActiveReports Server
Spread

Forums for all current versions of Spread .NET spreadsheets, SpreadJS JavaScript spreadsheets, and SpreadCOM spreadsheets.
Wijmo

Forums for all Wijmo products, including Wijmo Core, FinancialChart, FlexSheet, MultiRow, OLAP, and ReportViewer
- General Discussion
Document APIs

Forums for all versions of GrapeCity Documents for Excel and GrapeCity Documents for PDF