Accessing chart region 1 data from chart region 2 study?

June 16th, 2012, 10:30 AM

Basically I have a cci study that is in chart region 2, and I would like it to access the EMA data I have in chart region 1 (overlayed on price), how can I access the EMA data from the CCI study?

June 16th, 2012, 11:40 AM

This would be an example of a CCI study with another study as the input.

Code

#include "sierrachart.h"

SCDLLName("Example") 
/*==========================================================================*/
SCSFExport scsf_Example(SCStudyInterfaceRef sc)
{
	SCSubgraphRef CCI = sc.Subgraph[1];
	
	SCInputRef Study1 = sc.Input[0];
	SCInputRef Study1Subgraph = sc.Input[1];
	
	SCInputRef Period = sc.Input[2];
	
	if (sc.SetDefaults)
	{
		sc.FreeDLL = 0;
		sc.AutoLoop = 1;
					
		CCI.Name="CCI of Another Study";		
		CCI.DrawStyle = DRAWSTYLE_BAR;
		CCI.LineWidth = 3;
		
		Study1.Name = "Input Study #";
		Study1.SetStudyID(1);
		Study1Subgraph.Name = "Input Subgraph #";
		Study1Subgraph.SetSubgraphIndex(0);
		
		Period.Name = "CCI Period";
		Period.SetInt(14);
		
		return;
	}
		
	// Do data processing
	sc.DataStartIndex = Period.GetInt() + 5;

	if(sc.Index >= Period.GetInt() + 5)
	{
		
	SCFloatArray Study1Array;
	sc.GetStudyArrayUsingID(Study1.GetStudyID(),Study1Subgraph.GetSubgraphIndex(),Study1Array);
	
	sc.CCI(Study1Array, sc.Subgraph[0], Period.GetInt(), 0.015);
	CCI[sc.Index] = sc.Subgraph[0][sc.Index];
	
	
	}
}

June 17th, 2012, 02:46 PM

First, thanks for responding, and that did help, however, for some reason I'm running into a snag using multiple studies:
My layout is a ZB daily chart with:
1.EMA 13
2.EMA 34(based on HLC avg)
3.SMA 200

I'm trying to access those three values from my CciSystem.cpp study.
For debugging purposes, I have an sc.AddMessageToLog() spitting out the values. As you can see, the *only* value that is being returned is the emaFast() data. ->(EMA 13);
Last hack, I tried using sc.Subgraph[0].Arrays[x] (Thinking that maybe the values were getting overwritten somehow) and still the same result. What am I missing here?

NOTE: I've been compiling this with VS Studio 2010 so #includes may have to be 'revisited'

June 17th, 2012, 07:37 PM

I'm reposting my cpp file for anyone to see, but it does work. Basically, the cci study uses the ema data in the main graph to color it's (cci) histogram. This, for me, is still not complete, but is a working version of what I am going for. If anyone knows a more 'elegant' way to do this, beautiful, let me know.

Accessing chart region 1 data from chart region 2 study?

Discussion in Sierra Chart

Accessing chart region 1 data from chart region 2 study?