public void MinimumAreaRectangle(PdfPoint[] points, PdfPoint[] expected)
{
expected = expected.OrderBy(p => p.X).ThenBy(p => p.Y).ToArray();
var marRectangle = GeometryExtensions.MinimumAreaRectangle(points);
var mar = new[] { marRectangle.BottomLeft, marRectangle.BottomRight, marRectangle.TopLeft, marRectangle.TopRight }.OrderBy(p => p.X).ThenBy(p => p.Y).ToArray();
for (var i = 0; i < expected.Length; i++)
{
Assert.Equal(expected[i], mar[i], PointComparer);
}
}
// NEED TO IMPLEMENT ROUNDING
private static PdfRectangle GetBoundingBoxOther(Letter letter)
{
// not very useful, need axis aligned bbox anyway
// -> rotate back? or normalise?
var points = new[]
{
letter.StartBaseLine,
letter.EndBaseLine,
letter.GlyphRectangle.TopLeft,
letter.GlyphRectangle.TopRight
};
// Candidates bounding boxes
var obb = GeometryExtensions.MinimumAreaRectangle(points);
var obb1 = new PdfRectangle(obb.BottomLeft, obb.TopLeft, obb.BottomRight, obb.TopRight);
var obb2 = new PdfRectangle(obb.BottomRight, obb.BottomLeft, obb.TopRight, obb.TopLeft);
var obb3 = new PdfRectangle(obb.TopRight, obb.BottomRight, obb.TopLeft, obb.BottomLeft);
// Find the orientation of the OBB, using the baseline angle
// Assumes line order is correct
var baseLineAngle = Distances.BoundAngle180(Distances.Angle(letter.GlyphRectangle.BottomLeft, letter.GlyphRectangle.BottomRight));
double deltaAngle = Math.Abs(Distances.BoundAngle180(obb.Rotation - baseLineAngle));
double deltaAngle1 = Math.Abs(Distances.BoundAngle180(obb1.Rotation - baseLineAngle));
if (deltaAngle1 < deltaAngle)
{
deltaAngle = deltaAngle1;
obb = obb1;
}
double deltaAngle2 = Math.Abs(Distances.BoundAngle180(obb2.Rotation - baseLineAngle));
if (deltaAngle2 < deltaAngle)
{
deltaAngle = deltaAngle2;
obb = obb2;
}
double deltaAngle3 = Math.Abs(Distances.BoundAngle180(obb3.Rotation - baseLineAngle));
if (deltaAngle3 < deltaAngle)
{
obb = obb3;
}
return(obb);
}