/// <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 CreateTranslateTransformationFromArgs(string args)
{
// translate(<tx> [<ty>]), which specifies a translation by tx and ty. If <ty> is not provided, it is assumed to be zero.
var split = SplitStringOfNumbers(args);
if (split.Length < 1 || split.Length > 2)
{
throw new Exception($"Invalid translate transformation arguments '{args}'");
}
var tx = float.Parse(split[0], CultureInfo.InvariantCulture);
var ty = split.Length == 2 ? float.Parse(split[1], CultureInfo.InvariantCulture) : tx;
return(new SvgTransform(SvgTransformType.Translate, SvgMatrix.CreateTranslate(tx, ty)));
}