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What am I doing wrong on iFractals?

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Jerry Spence
216
Jerry Spence 2010.02.13 21:35 

I'm playing with Fractals and have the following snippet:

int Handle2 = iFractals(NULL, PERIOD_M15);
       double FractBuffer[];

       CopyBuffer(Handle2, 0, 0, 30, FractBuffer);
       ArraySetAsSeries(FractBuffer, true);
  
       double A1;
       int x;
       for(x=1;x<=10;x++)
       {
           double A1 = FractBuffer[x];

       }

I am getting rubbish in A1 for all values of x

-Jerry

investeo
4098
investeo 2010.02.14 02:53  
netconuk posted  :

I'm playing with Fractals and have the following snippet:

int Handle2 = iFractals(NULL, PERIOD_M15);
       double FractBuffer[];

       CopyBuffer(Handle2, 0, 0, 30, FractBuffer);
       ArraySetAsSeries(FractBuffer, true);
  
       double A1;
       int x;
       for(x=1;x<=10;x++)
       {
           double A1 = FractBuffer[x];

       }

I am getting rubbish in A1 for all values of x

-Jerry


you probably get an empty value (fractals appear only on certain array indexes), please modify your code to confirm


for(x=1;x<=10;x++)
       {
           double A1 = FractBuffer[x];
           if (A1!=EMPTY_VALUE) Print("A1 ["+IntegerToString(x)+"] = " + DoubleToString(A1));
            else Print("A1 ["+IntegerToString(x)+"] = EMPTY_VALUE");
       }

empty value is equal to DBL_MAX and is displayed as

 A1 [10] = 179769313486231570000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Jerry Spence
216
Jerry Spence 2010.02.14 11:00  
investeo:

you probably get an empty value (fractals appear only on certain array indexes), please modify your code to confirm



empty value is equal to DBL_MAX and is displayed as

 A1 [10] = 179769313486231570000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Thanks, that did help a lot (MT4 used to return zero for an empty one). However I'm only retreiving the top fractals. The bottom ones come out as empty.

-Jerry

Jerry Spence
216
Jerry Spence 2010.02.14 11:06  
netconuk:

Thanks, that did help a lot (MT4 used to return zero for an empty one). However I'm only retreiving the top fractals. The bottom ones come out as empty.

-Jerry

I've just answered my own question. To help others who stumble on this:

CopyBuffer(Handle2, 0, 0, 30, FractBuffer); returns the upper ones

CopyBuffer(Handle2, 1, 0, 30, FractBuffer); returns the lower ones.

-Jerry

Rashid Umarov
Admin
11812
Rashid Umarov 2010.02.14 13:46  
See also the sample for section Methods of Object Binding
 
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