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using System;
namespace QuickRoute.BusinessEntities.Numeric
{
[Serializable]
public abstract class ScaleCreatorBase
{
protected double scaleStartValue = 0.0;
protected double scaleEndValue = 1.0;
protected double markerInterval = 0.1;
protected int noOfMarkers = 11;
protected double firstMarkerValue = 0.0;
protected double lastMarkerValue = 1.0;
public double ScaleStartValue
{
get { return scaleStartValue; }
}
public double ScaleEndValue
{
get { return scaleEndValue; }
}
public double MarkerInterval
{
get { return markerInterval; }
}
public int NoOfMarkers
{
get { return noOfMarkers; }
}
public double FirstMarkerValue
{
get { return firstMarkerValue; }
}
public double LastMarkerValue
{
get { return lastMarkerValue; }
}
public double MarkerValue(int index)
{
return firstMarkerValue + index * markerInterval;
}
}
[Serializable]
public class IntScaleCreator : ScaleCreatorBase
{
// use 10^n * 1, 2, or 5 as marker intervals, n>=0
public IntScaleCreator(int minValue, int maxValue, int maxNoOfMarkers, bool adjustStartAndEndValues)
{
if (maxNoOfMarkers < 2) maxNoOfMarkers = 2;
int intervalLength = Math.Abs(maxValue - minValue);
if(intervalLength == 0) intervalLength = 1;
double minMarkerInterval = intervalLength / (maxNoOfMarkers - 1);
double log10 = Math.Log10(minMarkerInterval);
int n = (int)Math.Floor(log10);
double scaledMinMarkerInterval = minMarkerInterval / Math.Pow(10,n); // 1 <= scaledMinMarkerInterval < 10
if (scaledMinMarkerInterval <= 2)
{
markerInterval = 2 * Math.Pow(10, n);
}
else if (scaledMinMarkerInterval <= 5)
{
markerInterval = 5 * Math.Pow(10, n);
}
else
{
markerInterval = 10 * Math.Pow(10, n);
}
if (adjustStartAndEndValues)
{
scaleStartValue = Math.Floor(minValue / markerInterval) * markerInterval;
scaleEndValue = Math.Ceiling(maxValue / markerInterval) * markerInterval;
firstMarkerValue = scaleStartValue;
lastMarkerValue = scaleEndValue;
noOfMarkers = (int)((lastMarkerValue - firstMarkerValue) / markerInterval) + 1;
}
else
{
scaleStartValue = minValue;
scaleEndValue = maxValue;
firstMarkerValue = Math.Floor(minValue / markerInterval) * markerInterval;
if (firstMarkerValue < minValue) firstMarkerValue += markerInterval;
lastMarkerValue = Math.Ceiling(maxValue / markerInterval) * markerInterval;
if (lastMarkerValue > maxValue) lastMarkerValue -= markerInterval;
noOfMarkers = (int)((lastMarkerValue - firstMarkerValue) / markerInterval) + 1;
}
}
}
/// <summary>
/// Times are represented by seconds
/// </summary>
[Serializable]
public class TimeScaleCreator : ScaleCreatorBase
{
// marker intervals
static readonly double[] VALID_MARKER_INTERVALS = new double[] { 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1, 2 , 5 , 15 , 30 , 1 * 60, 2 * 60, 5 * 60, 15 * 60, 30 * 60, 1 * 3600, 2 * 3600, 6 * 3600, 12 * 3600, 24 * 3600 };
public TimeScaleCreator(double minValue, double maxValue, int maxNoOfMarkers, bool adjustStartAndEndValues)
{
if (maxNoOfMarkers < 2) maxNoOfMarkers = 2;
double intervalLength = Math.Abs(maxValue - minValue);
if (intervalLength == 0) intervalLength = double.Epsilon;
double minMarkerInterval = intervalLength / (maxNoOfMarkers - 1);
markerInterval = VALID_MARKER_INTERVALS[VALID_MARKER_INTERVALS.Length - 1];
foreach (double mi in VALID_MARKER_INTERVALS)
{
if (minMarkerInterval < mi)
{
markerInterval = mi;
break;
}
}
if (adjustStartAndEndValues)
{
scaleStartValue = Math.Floor(minValue / markerInterval) * markerInterval;
scaleEndValue = Math.Ceiling(maxValue / markerInterval) * markerInterval;
firstMarkerValue = scaleStartValue;
lastMarkerValue = scaleEndValue;
noOfMarkers = (int)((lastMarkerValue - firstMarkerValue) / markerInterval) + 1;
}
else
{
scaleStartValue = minValue;
scaleEndValue = maxValue;
firstMarkerValue = Math.Floor(minValue / markerInterval) * markerInterval;
if (firstMarkerValue < minValue) firstMarkerValue += markerInterval;
lastMarkerValue = Math.Ceiling(maxValue / markerInterval) * markerInterval;
if (lastMarkerValue > maxValue) lastMarkerValue -= markerInterval;
noOfMarkers = (int)((lastMarkerValue - firstMarkerValue) / markerInterval) + 1;
}
}
}
[Serializable]
public class DoubleScaleCreator : ScaleCreatorBase
{
// use 10^n * 1, 2, or 5 as marker intervals
public DoubleScaleCreator(double minValue, double maxValue, int maxNoOfMarkers, bool adjustStartAndEndValues)
{
if (maxNoOfMarkers < 2) maxNoOfMarkers = 2;
double intervalLength = Math.Abs(maxValue - minValue);
if (intervalLength == 0) intervalLength = double.Epsilon;
double minMarkerInterval = intervalLength / (maxNoOfMarkers - 1);
double log10 = Math.Log10(minMarkerInterval);
int n = (int)Math.Floor(log10);
double scaledMinMarkerInterval = minMarkerInterval / Math.Pow(10, n); // 1 <= scaledMinMarkerInterval < 10
if (scaledMinMarkerInterval <= 2){
markerInterval = 2 * Math.Pow(10, n);
}
else if (scaledMinMarkerInterval <= 5)
{
markerInterval = 5 * Math.Pow(10, n);
}
else
{
markerInterval = 10 * Math.Pow(10, n);
}
if (adjustStartAndEndValues)
{
scaleStartValue = Math.Floor(minValue / markerInterval) * markerInterval;
scaleEndValue = Math.Ceiling(maxValue / markerInterval) * markerInterval;
firstMarkerValue = scaleStartValue;
lastMarkerValue = scaleEndValue;
noOfMarkers = (int)((lastMarkerValue - firstMarkerValue) / markerInterval) + 1;
}
else
{
scaleStartValue = minValue;
scaleEndValue = maxValue;
firstMarkerValue = Math.Floor(minValue / markerInterval) * markerInterval;
if (firstMarkerValue < minValue) firstMarkerValue += markerInterval;
lastMarkerValue = Math.Ceiling(maxValue / markerInterval) * markerInterval;
if (lastMarkerValue > maxValue) lastMarkerValue -= markerInterval;
noOfMarkers = (int)((lastMarkerValue - firstMarkerValue) / markerInterval) + 1;
}
}
}
}
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