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Comparing a rectangle param to current bar

  • #1
  • First Post: Jan 29, 2011 7:50am Jan 29, 2011 7:50am
I would like to compare the parameters of a rectangle drawn on the chart with the current bar - can anyone help me obtain time of the right side of the rectangle and compare it with the current time of the bar ?

I am currently using OBJPROP_TIME2 to do this, but the numbers coming back do not compare correctly with Time[0].

Thx
  • #2
  • Jan 29, 2011 8:01am Jan 29, 2011 8:01am
Further to this - if anyone can help me figuring out how many bars are inside a rectangle drawn - that would be great
Off the top of my head im not even sure how to start that one
  • #3
  • Jan 29, 2011 8:42am Jan 29, 2011 8:42am
objprop_time2 can be the time of left side, depending on how you draw that rectangle (dragging from left to right or right to left). to be safe, get both objprop_time1 and 2, then apply mathmax to get the time of the right side

to get the number of bars covered by a rectangle:

time1 = objectget(rect,objprop_time1);
time2 = objectget(rect,objprop_time2);
numbars = mathabs(time2 - time1)/Period() + 1; //use mathabs in case time2<time1
this formula assumes there is no time gap from time1 to time2 interval
  • #4
  • Jan 29, 2011 9:14am Jan 29, 2011 9:14am
awesome, thx sangmane
  • #5
  • Jan 30, 2011 6:24am Jan 30, 2011 6:24am
ok i added the above code:
Inserted Code
time1 = objectget(rect,objprop_time1);
time2 = objectget(rect,objprop_time2);
numbars = mathabs(time2 - time1)/Period() + 1; //use mathabs in case time2<time1
in order to get the number of bars inside a rectangle drawn on the chart - it doesnt seem to work - its incorrectly reporting the number.

If anyone had any other suggestions, that would be great

thx
  • #6
  • Jan 30, 2011 7:32am Jan 30, 2011 7:32am
Quoting pipmyride
ok i added the above code:
Inserted Code
time1 = objectget(rect,objprop_time1);
time2 = objectget(rect,objprop_time2);
numbars = mathabs(time2 - time1)/Period() + 1; //use mathabs in case time2<time1
in order to get the number of bars inside a rectangle drawn on the chart - it doesnt seem to work - its incorrectly reporting the number.

If anyone had any other suggestions, that would be great

thx
when you have time1 and time2...
then you can use iBarShift to calculate the numbars..

Inserted Code
   
   int ibar1 = iBarShift(NULL, 0, time1);
   int ibar2 = iBarShift(NULL, 0, time2);
   
   numbars = MathAbs(ibar1 - ibar2);
...
  • #7
  • Jan 30, 2011 9:40am Jan 30, 2011 9:40am
PHP Code
numbars = mathabs(time2 - time1)/Period() + 1;
i forgot to multiply Period() with 60.
it should be:
PHP Code
numbars = mathabs(time2 - time1)/Period()/60 + 1;
@bandung: dont forget to add 1 bar if you want to include bars at rectangle's left and right side. or subtract by one to exclude these 2 bars
  • #8
  • Jan 30, 2011 7:16pm Jan 30, 2011 7:16pm
Quoting sangmane
PHP Code
numbars = mathabs(time2 - time1)/Period() + 1;
i forgot to multiply Period() with 60.
it should be:
PHP Code
numbars = mathabs(time2 - time1)/Period()/60 + 1;
@bandung: dont forget to add 1 bar if you want to include bars at rectangle's left and right side. or subtract by one to exclude these 2 bars

ya sangmane... you were right...

it should be like this :

Inserted Code
int ibar1 = iBarShift(NULL, 0, time1);
int ibar2 = iBarShift(NULL, 0, time2);
   
numbars = MathAbs(ibar1 - ibar2) + 1;
...
  • #9
  • Last Post: Jan 31, 2011 7:17am Jan 31, 2011 7:17am
Great !

Thx guys, works now
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