A graph objects that draw lines connected to each other :
Instance variables :
double *xData,
*yData;
int
numberOfPoints;
float
width;
int
style;
Style is one of PHStraight (default), PHDashed33 or
PHDashed8212
Methods :
-(id)initWithXData:(double*)xd
andYData:(double*)yd
andnpoints:(int)np
andXAxis:(PHxAxis*)xaxis
andYAxis:(PHyAxis*)yaxis;
-(void)setWidth:(float)newWidth;
-(void)setStyle:(int)newStyle;
-(void)setNumberOfPoints:(int)newNumberOfPoints;