// returing curve for BC segment
// all coords are vectors against Bpoint
protected static String lastSegmentToCurve(int[][] stroke, float lineCurveThreshold)
throws Exception {
// Here we tidy up things left unfinished
// What's left unfinished there is the curve between the last points
// in the stroke
// We can also be called when there is only one point in the stroke (meaning, the
// stroke was just a dot), in which case there is nothing for us to do.
// So for "this curve" to be calc'ed we need 3 points
// A, B, C
// and 2 lines:
// pre-line (from points A to B),
// this line (from points B to C)
// Well, actually, we don't need to *know* the point A, just the vector A->B
// so, we really need points B, C and AB vector.
int positionInStroke = stroke.length - 1;
// there must be at least 2 points in the stroke.for us to work. Hope calling code checks for
// that.
Vector BCvector = new Vector(stroke[positionInStroke][0], stroke[positionInStroke][1]);
/* [UNSUPPORTED] 'var' as type is unsupported "var" */ rounding = 2;
String curvetemplate = "c {0} {1} {2} {3} {4} {5}";
String linetemplate = "l {0} {1}";
if (positionInStroke > 1 && BCvector.getLength() > lineCurveThreshold) {
// we have at least 3 elems in stroke
Vector ABvector =
new Vector(stroke[positionInStroke - 1][0], stroke[positionInStroke - 1][1]);
/* [UNSUPPORTED] 'var' as type is unsupported "var" */ ABCangle =
BCvector.angleTo(ABvector.getReversed());
/* [UNSUPPORTED] 'var' as type is unsupported "var" */ minlenfraction = 0.05;
/* [UNSUPPORTED] 'var' as type is unsupported "var" */ maxlen = BCvector.getLength() * 0.35;
Vector BtoCP1vector =
new Vector(ABvector.x + BCvector.x, ABvector.y + BCvector.y)
.getResizedTo((float) (Math.Max(minlenfraction, ABCangle) * maxlen));
return String.Format(
curvetemplate,
Math.Round(BtoCP1vector.x, rounding),
Math.Round(BtoCP1vector.y, rounding),
Math.Round(BCvector.x, rounding),
Math.Round(BCvector.y, rounding),
Math.Round(BCvector.x, rounding),
Math.Round(BCvector.y, rounding));
} else {
return String.Format(
linetemplate, Math.Round(BCvector.x, rounding), Math.Round(BCvector.y, rounding));
}
}
