com.sun.electric.tool.simulation.DerivedSignal Maven / Gradle / Ivy
/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: DerivedSignal.java
*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
*
* Electric(tm) is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Electric(tm) is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Electric(tm); see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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package com.sun.electric.tool.simulation;
import com.sun.electric.database.geometry.PolyBase;
import com.sun.electric.tool.user.waveform.Panel;
import com.sun.electric.tool.user.waveform.WaveSignal;
import com.sun.electric.tool.user.waveform.Panel.WaveSelection;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.geom.Rectangle2D;
import java.util.List;
/**
* A Signal which is derived in a *pointwise* fashion from other
* signals. This means that the min/max estimate for the signal over
* the time period [t0:t1] must depend only on the min/max estimate
* for the source signals over that same range. So, for example, a
* convolution cannot be represented using this class.
*/
public abstract class DerivedSignal extends Signal
{
private final Signal[] sources;
public DerivedSignal(SignalCollection sc, Stimuli sd, String signalName, String signalContext,
boolean digital, Signal[] sources)
{
super(sc, sd, signalName, signalContext, digital);
this.sources = sources;
}
public Signal.View> getRasterView(double t0, double t1, int numPixels)
{
View>[] views = new View[sources.length];
for(int i=0; i>
{
private View>[] views;
private RangeSample[] scratch;
public DerivedSignalRasterView(View>[] views)
{
this.views = views;
scratch = new RangeSample[views.length];
}
public int getNumEvents() { return views[0].getNumEvents(); }
public double getTime(int event) { return views[0].getTime(event); }
public RangeSample getSample(int event)
{
for(int i=0; i ret = getDerivedRange(scratch);
for(int i=0; i getExactView()
{
if (sources.length==1)
return new DerivedSignalExactView(sources[0].getExactView());
throw new RuntimeException("Exact views of DerivedSignal's with >1 source are not supported");
}
private class DerivedSignalExactView implements View
{
private View view;
public DerivedSignalExactView(View view) { this.view = view; }
public int getNumEvents() { return view.getNumEvents(); }
public double getTime(int event) { return view.getTime(event); }
public SNew getSample(int event)
{
SOld old = view.getSample(event);
return getDerivedRange(new RangeSample[] { new RangeSample(old, old) }).getMin() /* FIXME: arbitrary */;
}
}
protected abstract RangeSample getDerivedRange(RangeSample[] sourceRanges);
public void plot(Panel panel, Graphics g, WaveSignal ws, Color light, List forPs,
Rectangle2D bounds, List selectedObjects, Signal xAxisSignal)
{
throw new RuntimeException("not implemented");
}
}