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11.53 Sample ‘export’ ¶

Example of data export and import.

MGL code:

new a 100 100 'x^2*y':new b 100 100
export a 'test_data.png' 'BbcyrR' -1 1
import b 'test_data.png' 'BbcyrR' -1 1
subplot 2 1 0 '':title 'initial':box:dens a
subplot 2 1 1 '':title 'imported':box:dens b

C++ code:

void smgl_export(mglGraph *gr)	// basic data operations
{
	mglData a(100,100), b; gr->Fill(a,"x^2*y");
	a.Export("test_data.png","BbcyrR");
	b.Import("test_data.png","BbcyrR",-1,1);
	gr->SubPlot(2,1,0,"");	gr->Title("initial");	gr->Box();	gr->Dens(a);
	gr->SubPlot(2,1,1,"");	gr->Title("imported");	gr->Box();	gr->Dens(b);
}