ChartTimePriceToXY giving same (wrong) results

[Ziad El]

I am trying to use an indicator only as dashboard to draw rectangles, labels, present information...

As drawing objects is easier with X and Y coordinates, I will end up using OBJ_LABEL and OBJ_RECTANGLE_LABEL... But the indicator subwindow is based (?) on datetime and prices.

The necessary conversion ChartTimePriceToXY is giving me errors. The simple following test fails:

//+------------------------------------------------------------------+
//| Tests() The following is inside the dummy Indicator              |
//|                                                                  |
//+------------------------------------------------------------------+
void Tests()
{
datetime T1; 
int subwo=0;
T1=Time(_Symbol,_Period,0);  // MQL5 emulation of MQL4 function
Print(T1); // gives 2018.11.29 21:00:00
bool ok = ChartTimePriceToXY(0,subwo,T1,1.2,X1,Y1);
Print (ok); // gives false
Print ("X1=",X1); // gives 1
Print ("Y1=",Y1);  // gives 540

T1=Time(_Symbol,_Period,40); 
Print(T1); // gives 2018.11.28 05:00:00
     ok = ChartTimePriceToXY(0,subwo,T1,36.7,X1,Y1);
Print (ok);  // gives false
Print ("X1=",X1); // gives 1
Print ("Y1=",Y1); // gives 540
}

Any help please?

[Keith Watford]

Ziad El:

I am trying to use an indicator only as dashboard to draw rectangles, labels, present information...

As drawing objects is easier with X and Y coordinates, I will end up using OBJ_LABEL and OBJ_RECTANGLE_LABEL... But the indicator subwindow is based (?) on datetime and prices.

The necessary conversion ChartTimePriceToXY is giving me errors. The simple following test fails:

What is the Last Error?

You talk about the indicator sub window, but check the main chart?

[Ziad El]

You are right, sorry

int subwo=1;

[nicholish en]

Ziad El:

You are right, sorry

int subwo=1;

I'm betting everything that you are trying to plot Times and Prices that are beyond the visual bounds of the chart. In order to get X, Y the time and price need to be in the visual window, afterall, it couldn't return X=-100, y=-50, right? So if you need time, price coordinates than you obviously should use time, price coordinates. 

[Ziad El]

The problem with datetime and double is that it is difficult to program matrices of rectangles.

The weird thing I just found (after a day of suffering) is that using corners with int X and Y coordinates work well:

//+------------------------------------------------------------------+
//| DrawRectangle                                                    |
//|                                                                  |
//+------------------------------------------------------------------+
void Rc(string label, int xPixel_1, int yPixel_1, int width, 
  int height, color clrFill, color clrBorder, double style,
  int Corner=0,int subwindow=0)                                      {
ObjectDelete    (0, label )                                          ;
ChartSetInteger(0,CHART_FOREGROUND,0,false);  
ObjectCreate    (0,label,OBJ_RECTANGLE_LABEL,subwindow,0,0);
ObjectSetInteger(0,label,OBJPROP_XDISTANCE,  xPixel_1               );
ObjectSetInteger(0,label,OBJPROP_YDISTANCE,  yPixel_1               );
ObjectSetInteger(0,label,OBJPROP_XSIZE,      width                  );
ObjectSetInteger(0,label,OBJPROP_YSIZE,      height                 );
ObjectSetInteger(0,label,OBJPROP_BACK,       true                   );
ObjectSetInteger(0, label, OBJPROP_CORNER,    Corner                );  
ObjectSetInteger(0,label,OBJPROP_COLOR,      clrBorder              );
ObjectSetInteger(0,label,OBJPROP_BGCOLOR,    clrFill               );}

And calling this into my indicator with:

// Let me try to draw a rectangle from some corner:
Rc("R1", 22,32,22,44,clrAliceBlue,clrAntiqueWhite,SS,0,1); 
Rc("R2", 22,122,22,44,clrAliceBlue,clrAntiqueWhite,SS,1,1); 

work very well... (SS=StyleSolid redefined)

Anyway this whole idea of Indicator used as dashboard is not very elegant, I have seen EAs with large empty space below prices in the main window filled with data and labels... I do not know how to emulate this, the main window height seems so much linked with the prices themselves...

[nicholish en]

Ziad El:

The problem with datetime and double is that it is difficult to program matrices of rectangles.

The weird thing I just found (after a day of suffering) is that using corners with int X and Y coordinates work well:

And calling this into my indicator with:

work very well... (SS=StyleSolid redefined)

I don't understand why you need to work with time and price at all if want you want to do is create a matrix of chartobjects?

#include <chartobjects/chartobjectstxtcontrols.mqh>
void OnStart()
{
   //MATRIX
   CChartObjectRectLabel r1, r2, r3, r4;
   r1.Create(0, "r1", 0, 10, 10, 100, 100);
   r2.Create(0, "r2", 0, 120, 10, 100, 100);
   r3.Create(0, "r3", 0, 10, 120, 100, 100);
   r4.Create(0, "r4", 0, 120,120, 100, 100);
   ChartRedraw();
   while(!IsStopped())
      Sleep(10);
}

[Ziad El]

thanks nicholi for the code.

This class may be helpful for me.

Yes you are write, I was experimenting both directions, and instead of showing you my trials with ChartXYToTimePrice, I mistakenly began my question by showing ChartTimePriceToXY... So It was also an error in my question.

Maybe in the morning I had no internet connections so both ChartXYToTimePrice and ChartTimePriceToXY where giving "false"...