segment class

A segment is an edge with two points. It is derived from a dbObj so it can be selectable; it also refers to a dbObj. Segments are used when selecting an edge of e.g. a rectangle or polygon.

segment::segment(const Point &p0, const Point &p1)

Creates a segment with coordinates p0 and p1.

segment::segment(int32_t x1, int32_t y1, int32_t x2, int32_t y2)

Creates a segment with the specified xy coordinates.

Edge segment::getEdge()

Returns an Edge from the segment's coordinates.

int32_t segment::length()

Get the euclidean length of the segment.

float64_t segment::DistanceToPoint(const &Point p)

Get the distance from a point p to this segment.

Point segment::NearestPoint(const Point &p)

Get the nearest point on a segment to another point.

db_Type segment::objType()

Returns the object's type, SEGMENT.

const char * segment::objName()

Returns the object's name, "SEGMENT".

segment::SetObj(dbObj * obj)

Sets the dbObj associated with this segment.

dbObj * segment::GetObj()

Gets the dbObj associated with this segment.

bool segment::isXSeg()

Returns true if this segment is horizontal.

bool segment::isYSeg()

Returns true if this segment is vertical.

bool segment::isManhattan()

Returns true if this segment is manhattan.

Rect segment::bBox()

Returns a fake bounding box 10 dbu larger than the segment itself.

segment::normalise()

Normalise a segment, i.e. ensure coord p0 is the lower left compared to p1.

bool segment::segInRect(const Rect &r)

Returns 1 if the segment is contained in Rect r.

segment::transform(transform trans)

Transforms this segment according to trans.

segment::Move(cellView *cv, Point delta, bool opt = true)

Moves this segment by delta. If opt is true then the database is re-optimised for the new segment position. If there are a lot of objects to move it makes sense to turn this off and instead use the cellView update() function after moving them all.

Point segment::p0

The first point of the segment.

Point segment::p1

The last point of the segment.