XR07 recJs Example: Generating analog data

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Outline

This recJs example script random analog data.

Platforms	32/64bit 32/64bit 32/64bit
Requirements	None
Parameters:	None
Content of example record files	recJs/r07_analog.recJs

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Output

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Usage

1. Copy the script code onto a file resource with "recJs" ending or use the impulse record examples.
2. Open the impulse viewer with the file resource (e.g. double-click the file in the eclipse explorer).

R003 recJs Reader 10 Signal Script Script Examples impulse JDK Open JavaDoc

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Script

The script creates 8 float signals and fills each with 10000 random cos/sin samples.

//-recjs (keep this line)
// generator   : Record generator (de.toem.impulse.samples.ISingleDomainRecordGenerator)
// file        : File object of the executed recJs file (java.io.File)
// p0..p9      : Parameters from the reader configuration (java.lang.String)
// progress    : Progress control (de.toem.impulse.cells.ports.IPortProgress)
// console     : Console output (de.toem.impulse.scripting.IScriptConsole)

// Init the record
generator.initRecord("Example Record",TimeBase.ms);
var signals = [];
for (var i=0;i<8;i++){
	signals[i] = generator.addSignal(null, "a"+i, "", ProcessType.Discrete, SignalType.Float, SignalDescriptor.DEFAULT);
}
generator.open(0);

for (var i=0;i<8;i++){
	generate(i,signals[i]);
}

var current = 0;

generator.close( 10000);

function generate(idx,signal){
	var writer/*:IFloatSamplesWriter:*/ = generator.getWriter( signal);
	a=Math.random();
	b=Math.random()/2;
	c=Math.random()/3;
	d=Math.random()/4;
	e=Math.random()/5;
	f=Math.random()/6;
	
	for (var t=0;t<10000;t++){
		var v = Math.sin(a*t)*a+Math.cos(b*t)*b+Math.sin(c*t)*c+Math.cos(d*t)*d+Math.sin(e*t)*e+Math.cos(f*t)*f;
		writer.writeDouble( t, false, v);
	}
}

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