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Scatter: Propose to add new methods [message #28570]

Tue, 07 September 2010 16:26

tojocky
Messages: 607
Registered: April 2008
Location: UK

Contributor

Hello All,

I propose to add the following new public methods and integrate in scatter control:

double Scatter::GetXByPoint(const Point &p_point){
	double v_x=(p_point.x-GetH_Border())*GetXRange()/(GetSize().cx-2*GetH_Border()-1)+GetXMin();		
	return v_x;
}

double Scatter::GetYByPoint(const Point &p_point){
	double v_y=(GetSize().cy-GetV_Border()-p_point.y-1)*GetYRange()/(GetSize().cy-2*GetV_Border()-GetTitleFont().GetHeight()-1)+GetYMin();
	return v_y;
}

double Scatter::GetY2ByPoint(const Point &p_point){
	double v_y2=(GetSize().cy-GetV_Border()-p_point.y-1)*GetY2Range()/(GetSize().cy-2*GetV_Border()-GetTitleFont().GetHeight()-1)+GetYMin2();
	return v_y2;
}

double Scatter::GetXPointByValue(const XY &p_v){
	double v_x=(p_v.x-GetXMin())/GetXRange()*(GetSize().cx-2*GetH_Border()-1)+GetH_Border();
	return v_x;
}

double Scatter::GetYPointByValue(const XY &p_v){
	double v_y=(GetSize().cy-GetV_Border()-1)-(p_v.y-GetYMin())/GetYRange()*(GetSize().cy-2*GetV_Border()-GetTitleFont().GetHeight()-1);
	return v_y;
}

and propose to modify method:
from:

Scatter &Scatter::SetMinUnits(double ux, double uy)
{
	xMinUnit=ux;
	yMinUnit=uy;
	yMinUnit2=yRange2*yMinUnit/yRange;
	return *this;
}

to:

Scatter &Scatter::SetMinUnits(double ux, double uy)
{
	xMinUnit=ux;
	yMinUnit=uy;
	yMinUnit2=yRange2*yMinUnit/yRange;
	AdjustMinUnitX();
	AdjustMinUnitY();
	AdjustMinUnitY2();
	return *this;
}

I use this methods very often.

Best regards, Ion Lupascu.

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