/*------------------------------------------------------------------------------*
 * File Name: AddPlotsToLayerAndGroup.c											*
 * Creation: ER, 02/11/05														*
 * Purpose: Programming Example													*
 * Copyright (c) OriginLab Corp.2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010	*
 * All Rights Reserved															*
 * 																				*
 * Modification Log:															*
 *------------------------------------------------------------------------------*/
 
#include <Origin.h>

////////////////////////////////////////////////////////////////////////////////////
// This example shows how to add a few new plots to an existing graph layer and
// then group the newly added plots.
// Call this function with a graph that already has some (grouped) data plots
//
void add_plots_to_layer_and_group()
{
	// Work with the active graph
	GraphLayer gly = Project.ActiveLayer();
	if( !gly )
	{
		out_str("Active layer is not a graph layer!");
		return;
	}

	// Create a new wks and import one of the sample data files
	string strFile = GetAppPath(true) + "Samples\\Curve Fitting\\Exponential Decay.dat";
	if( !strFile.IsFile() )
	{
		printf("File %s is not exist.\n", strFile);
		return;
	}
	
	WorksheetPage wpg;
	wpg.Create("Origin");
	Worksheet wks = wpg.Layers(0);
	wks.ImportASCII(strFile);
	
	// Add only the columns you want to add.
	// For example, add the 2nd and 4th column
	// First need to create curve objects
	Curve crv1(wks, 1);
	Curve crv2(wks, 3);
	if( !crv1 || !crv2 )
	{
		out_str("Failed to declare curve!");
		return;
	}
	// Add data plots for these two curves to layer
	int nIndex1 = gly.AddPlot(crv1);
	int nIndex2 = gly.AddPlot(crv2);
	if( -1 == nIndex1 | -1 == nIndex2 )
	{
		out_str("Failed to add plots to layer");
		return;
	}

	// Now group the added plots
	gly.GroupPlots(nIndex1, nIndex2);
	
	// Rescale layer
	gly.Rescale();
	
	// Refresh legend
	legend_update(gly);
	
	// Bring graph page to forefront in case new wks is on top of it
	GraphPage gpg = gly.GetPage();
	gpg.SetShow();

	// To add entire worksheet to graph layer, where appropriate plottable columns
	// will be added to layer and grouped together, use:
	//gly.AddPlot(wks, IDM_PLOT_LINESYMB);
}
////////////////////////////////////////////////////////////////////////////////////