/*
* (non-Javadoc)
*
* @see org.hibernatespatial.mgeom.IMGeometry#GetMinM()
*/
public double GetMinM()
{
double minM = Double.PositiveInfinity;
for (int i = 0; i < this.NumGeometries; i++)
{
MLineString ml = (MLineString)this.GetGeometryN(i);
double d = ml.GetMinM();
if (d < minM)
{
minM = d;
}
}
return(minM);
}
/**
* TODO Improve this, and add more unit tests
*/
private void DetermineMonotone()
{
this.monotone = true;
this.strictMonotone = true;
if (this.IsEmpty)
{
return;
}
MGeometryType mdir = ((MLineString)this.geometries[0]).GetMeasureDirection();
for (int i = 0; i < this.geometries.Length; i++)
{
MLineString ml = (MLineString)this.geometries[i];
// check whether mlinestrings are all pointing in same direction,
// and
// are monotone
if (!ml.IsMonotone(false) ||
(ml.GetMeasureDirection() != mdir && !(ml
.GetMeasureDirection() == MGeometryType.Constant)))
{
this.monotone = false;
break;
}
if (!ml.IsMonotone(true) || (ml.GetMeasureDirection() != mdir))
{
this.strictMonotone = false;
break;
}
// check whether the geometry measures do not overlap or
// are inconsistent with previous parts
if (i > 0)
{
MLineString mlp = (MLineString)this.geometries[i - 1];
if (mdir == MGeometryType.Increasing)
{
if (mlp.GetMaxM() > ml.GetMinM())
{
monotone = false;
}
else if (mlp.GetMaxM() >= ml.GetMinM())
{
strictMonotone = false;
}
}
else
{
if (mlp.GetMinM() < ml.GetMaxM())
{
monotone = false;
}
else if (mlp.GetMinM() <= ml.GetMaxM())
{
strictMonotone = false;
}
}
}
}
if (!monotone)
{
this.strictMonotone = false;
}
}