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New function VAbstractCurve::SubdividePath.

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--HG--
branch : develop
This commit is contained in:
Roman Telezhynskyi 2019-05-27 17:13:57 +03:00
parent e14b16dc96
commit 950e476682
2 changed files with 71 additions and 0 deletions
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68
src/libs/vgeometry/vabstractcurve.cpp
View File

@ -262,6 +262,74 @@ bool VAbstractCurve::IsPointOnCurve(const QPointF &p) const
return IsPointOnCurve(GetPoints(), p);
}
//---------------------------------------------------------------------------------------------------------------------
bool VAbstractCurve::SubdividePath(const QVector<QPointF> &points, QPointF p, QVector<QPointF> &sub1,
QVector<QPointF> &sub2)
{
if (points.size() < 2)
{
return false;
}
bool found = false;
sub1.clear();
sub2.clear();
for (qint32 i = 0; i < points.count()-1; ++i)
{
if (not found)
{
if (IsPointOnLineSegment(p, points.at(i), points.at(i+1)))
{
if (not VFuzzyComparePoints(points.at(i), p))
{
sub1.append(points.at(i));
sub1.append(p);
}
else
{
if (not sub1.isEmpty())
{
sub1.append(p);
}
}
if (not VFuzzyComparePoints(points.at(i+1), p))
{
sub2.append(p);
if (i+1 == points.count()-1)
{
sub2.append(points.at(i+1));
}
}
found = true;
}
else
{
sub1.append(points.at(i));
}
}
else
{
sub2.append(points.at(i));
if (i+1 == points.count()-1)
{
sub2.append(points.at(i+1));
}
}
}
if (not found)
{
sub1.clear();
}
return found;
}
//---------------------------------------------------------------------------------------------------------------------
quint32 VAbstractCurve::GetDuplicate() const
{

3
src/libs/vgeometry/vabstractcurve.h
View File

@ -77,6 +77,9 @@ public:
static bool IsPointOnCurve(const QVector<QPointF> &points, const QPointF &p);
bool IsPointOnCurve(const QPointF &p) const;
static bool SubdividePath(const QVector<QPointF> &points, QPointF p, QVector<QPointF> &sub1,
QVector<QPointF> &sub2);
virtual qreal GetStartAngle () const=0;
virtual qreal GetEndAngle () const=0;