Examples of org.jrobin.data.LinearInterpolator

org.jrobin.data.LinearInterpolator
Class used to interpolate datasource values from the collection of (timestamp, values) points. This class is suitable for linear interpolation only.

Interpolation algorithm returns different values based on the value passed to {@link #setInterpolationMethod(int) setInterpolationMethod()}. If not set, interpolation method defaults to standard linear interpolation ( {@link #INTERPOLATE_LINEAR}). Interpolation method handles NaN datasource values gracefully.

      RrdGraphDef rrdGraphDef = new RrdGraphDef();
      rrdGraphDef.setTimeSpan(t1, t2);
      rrdGraphDef.setImageFormat("png");
      rrdGraphDef.setTitle(rrdDef.getDsDefs()[dsIndex].dump() + " " +
          rrdDef.getArcDefs()[arcIndex].dump());
      LinearInterpolator linearInterpolator = new LinearInterpolator(timestamps, values);
      linearInterpolator.setInterpolationMethod(LinearInterpolator.INTERPOLATE_RIGHT);
      rrdGraphDef.datasource(dsName, linearInterpolator);
      rrdGraphDef.area(dsName, color, dsName + "\\r");
      rrdGraphDef.comment("START: " + new Date(t1 * 1000L) + "\\r");
      rrdGraphDef.comment("END: " + new Date(t2 * 1000L) + "\\r");
      int width = graphPanel.getWidth(), height = graphPanel.getHeight();

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      RrdGraphDef rrdGraphDef = new RrdGraphDef();
      rrdGraphDef.setTimeSpan(t1, t2);
      rrdGraphDef.setImageFormat("png");
      rrdGraphDef.setTitle(rrdDef.getDsDefs()[dsIndex].dump() + " " +
          rrdDef.getArcDefs()[arcIndex].dump());
      LinearInterpolator linearInterpolator = new LinearInterpolator(timestamps, values);
      linearInterpolator.setInterpolationMethod(LinearInterpolator.INTERPOLATE_RIGHT);
      rrdGraphDef.datasource(dsName, linearInterpolator);
      rrdGraphDef.area(dsName, color, dsName + "\\r");
      rrdGraphDef.comment("START: " + new Date(t1 * 1000L) + "\\r");
      rrdGraphDef.comment("END: " + new Date(t2 * 1000L) + "\\r");
      int width = graphPanel.getWidth(), height = graphPanel.getHeight();

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Related Classes of org.jrobin.data.LinearInterpolator

org.jrobin.inspector.GraphFrame

org.jrobin.core.RrdException

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