/// <summary>
/// Tries to create a virtual canvas from a physical canvas and a camera.
/// </summary>
/// <param name="physicalCanvas">This is typically a <see cref="ICanvas2D"/> backend. It must implement <see cref="IRenderTargetInfo"/>.</param>
/// <param name="camera">The current camera</param>
/// <param name="virtualCanvas">the resulting virtual canvas.</param>
/// <returns>true if it succeeded in creating the virtual canvas.</returns>
/// <remarks>
/// The method may fail if the <paramref name="physicalCanvas"/> does not implement <see cref="IRenderTargetInfo"/> at one point in the chain,
/// or if the <see cref="IRenderTargetInfo.PixelsWidth"/> or <see cref="IRenderTargetInfo.PixelsHeight"/> are zero or negative.
/// </remarks>
public static bool TryCreate(ICoreCanvas2D physicalCanvas, CameraTransform2D camera, out Canvas2DTransform virtualCanvas)
{
if (!camera.TryCreateFinalMatrix(physicalCanvas, out var finalMatrix))
{
virtualCanvas = default;
return(false);
}
virtualCanvas = Create(physicalCanvas, finalMatrix);
return(true);
}
public static Canvas2DTransform Create(ICoreCanvas2D target, Point2 physicalSize, Point2 virtualSize, Matrix3x2 virtualOffset)
{
var camera = CameraTransform2D.Create(virtualOffset, virtualSize);
return(Create(target, camera, physicalSize));
}
