/// <summary>
/// Calculates the matrix to transform the content by to fit into the specified viewport dimensions
/// </summary>
public static SvgMatrix CalculateViewboxFit(this ISvgFitToViewbox fitToViewbox, float viewportWidth, float viewportHeight)
{
CalculateViewboxFit(fitToViewbox, viewportWidth, viewportHeight, out var scaleX, out var scaleY, out var offsetX, out var offsetY);
var translateMatrix = SvgMatrix.CreateTranslate(offsetX, offsetY);
var scaleMatrix = SvgMatrix.CreateScale(scaleX, scaleY);
return(SvgMatrix.Multiply(translateMatrix, scaleMatrix));
}
private static SvgTransform CreateScaleTransformationFromArgs(string args)
{
// scale(<sx> [<sy>]), which specifies a scale operation by sx and sy. If <sy> is not provided, it is assumed to be equal to <sx>.
var split = SplitStringOfNumbers(args);
if (split.Length < 1 || split.Length > 2)
{
throw new Exception($"Invalid scale transformation arguments '{args}'");
}
var x = float.Parse(split[0], CultureInfo.InvariantCulture);
var y = split.Length == 2 ? float.Parse(split[1], CultureInfo.InvariantCulture) : x;
return(new SvgTransform(SvgTransformType.Scale, SvgMatrix.CreateScale(x, y)));
}