Display part of an Image, inside a Frame, in Xamarin.Forms

Question

In Xamarin.Forms, how can I display only a specific part of a larger Image (i.e. crop the Image), inside a Frame?

Lets say that I e.g. want to display the right lower quadrant, like this:

Image:

Frame:

The part I want (e.g. right lower quadrant):

To Display (the Frame with part of the Image inside):

My Code (the double Frames are just for thicker borders):

<Frame BorderColor="#880014" BackgroundColor="#880014" Padding="4">
    <Frame BorderColor="#880014" BackgroundColor="#FFFFFF" Padding="0">
        <!--
        An Image something like this...
        <Image Source="{local:ImageResource SGC.Resources.SGCLogo.png}" Aspect="Fill" ... />
        -->
    </Frame>
</Frame>

Answer 1

The solution is to use an <AbsoluteLayout> with Proportional values inside the <Frame>.

<AbsoluteLayout>
    <Image Source="{local:ImageResource SGC.Resources.SGCLogo.png}"  
                   AbsoluteLayout.LayoutBounds="1, 1, 2, 2"  
                   AbsoluteLayout.LayoutFlags="All"  
                   Aspect="Fill"/>  
</AbsoluteLayout>

Set the LayoutFlags to treat all values as Proportional:
AbsoluteLayout.LayoutFlags="All".

And use LayoutBounds to set Proportional values for "X, Y, Width, Height" i.e.: (AbsoluteLayout.LayoutBounds="1, 1, 2, 2")

Where "1, 1..." is the right lower quadrant.
(use "0, 1..." for left lower quadrant):

And "...2, 2" crops the Image to 1/4 of its size (two columns and two rows).
(use "...8, 8" for 1/64 Image size or "...2, 4" for 1/8 size like this):