Beispiel #1
0
        /// <summary>
        /// Reset AxisMargin, keeping TotalLength the same.
        /// </summary>
        /// <param name="newScale"></param>
        internal void ResetAxisMargin(Thickness1D newMargin)
        {
            AxisPadding = newMargin;
            double axisLength = AxisTotalLength - newMargin.Total();

            Scale  = axisLength / (MaxTransformed - MinTransformed);
            Offset = Scale * MinTransformed - AxisPadding.Lower;
        }
Beispiel #2
0
        /// <summary>
        /// Increase axis margins by amount necessary to ensure both that there is room
        /// for labels and that the necessary axes are aligned.
        /// </summary>
        /// <param name="alignedAxes">List of axes that need to be aligned.</param>
        private static void ExpandAxisMargins(List <Axis2D> alignedAxes, double plotLength)
        {
            // Calculate margins
            Thickness1D margin = new Thickness1D(alignedAxes.Max(axis => axis.AxisPadding.Lower), alignedAxes.Max(axis => axis.AxisPadding.Upper));

            double minPlotLength = 1.0;

            if (plotLength > minPlotLength)
            {
                double newTotalLength = plotLength + margin.Total();
                foreach (Axis2D axis in alignedAxes)
                {
                    axis.AxisTotalLength = newTotalLength;
                }
            }
            else if ((alignedAxes[0].AxisTotalLength - margin.Total()) < minPlotLength)
            {
                foreach (Axis2D axis in alignedAxes)
                {
                    axis.AxisTotalLength = margin.Total() + minPlotLength;
                }
            }

            // Set the margin and update Scale and Offset.
            foreach (Axis2D axis in alignedAxes)
            {
                axis.ResetAxisMargin(margin);
            }

            int tickIndex    = 0;
            int maxTickIndex = alignedAxes.Max(axis => axis.Ticks.Length) / 2;

            int[]  tickPair               = new int[2];
            Axis2D limitingLowerAxis      = null;
            int    limitingLowerTickIndex = 0;
            double limitingLowerSemiWidth = margin.Lower;
            Axis2D limitingUpperAxis      = null;
            int    limitingUpperTickIndex = 0;
            double limitingUpperSemiWidth = margin.Upper;
            double offsetLower            = 0;
            double deltaLower             = alignedAxes[0].MaxTransformed - alignedAxes[0].MinTransformed;
            double deltaUpper             = deltaLower;
            double axisTotalLength        = alignedAxes[0].AxisTotalLength;
            double offsetUpper            = 0;

            int nRescales = 0; // for diagnosic purposes only

            while ((tickIndex <= maxTickIndex) && (nRescales < 10))
            {
                bool reset = false;
                // if a rescaling is required, start again from the beginning.
                for (int i = 0; i < alignedAxes.Count; ++i)
                {
                    Axis2D currentAxis = alignedAxes[i];
                    tickPair[0] = tickIndex;
                    tickPair[1] = currentAxis.TicksTransformed.Length - 1 - tickIndex;
                    if ((currentAxis.TicksTransformed.Length - 1 - tickIndex) < tickIndex)
                    {
                        continue;
                    }
                    for (int j = 0; j <= 1; ++j)
                    {
                        int index = tickPair[j];
                        if (!currentAxis.LabelsVisible || currentAxis.TickLabelCache[index].Label.Text == "" || !currentAxis.TickLabelCache[index].IsShown)
                        {
                            continue;
                        }
                        if ((currentAxis.Scale * currentAxis.TicksTransformed[index] - currentAxis.Offset - currentAxis.LimitingTickLabelSizeForLength(index) / 2) < -0.1)
                        {
                            // need to rescale axes
                            limitingLowerAxis      = currentAxis;
                            limitingLowerTickIndex = index;
                            limitingLowerSemiWidth = currentAxis.LimitingTickLabelSizeForLength(index) / 2;
                            offsetLower            = currentAxis.TicksTransformed[index] - currentAxis.MinTransformed;
                            deltaLower             = currentAxis.MaxTransformed - currentAxis.MinTransformed;
                        }
                        else if ((currentAxis.Scale * currentAxis.TicksTransformed[index] - currentAxis.Offset + currentAxis.LimitingTickLabelSizeForLength(index) / 2) > (currentAxis.AxisTotalLength + 0.1))
                        {
                            // need to rescale axes
                            limitingUpperAxis      = currentAxis;
                            limitingUpperTickIndex = index;
                            limitingUpperSemiWidth = currentAxis.LimitingTickLabelSizeForLength(index) / 2;
                            offsetUpper            = currentAxis.MaxTransformed - currentAxis.TicksTransformed[index];
                            deltaUpper             = currentAxis.MaxTransformed - currentAxis.MinTransformed;
                        }
                        else
                        {
                            continue;
                        }

                        // Reset required:
                        reset = true; nRescales++;
                        double offsetUpperPrime = offsetUpper * deltaLower / deltaUpper;

                        // scale for lower-limiting axis
                        double newScale = (axisTotalLength - limitingLowerSemiWidth - limitingUpperSemiWidth) /
                                          (deltaLower - offsetLower - offsetUpperPrime);
                        if (plotLength > minPlotLength)
                        {
                            // Axis is fixed to plotLength.
                            newScale = plotLength / deltaLower;
                            margin   = new Thickness1D(limitingLowerSemiWidth - offsetLower * newScale, limitingUpperSemiWidth - offsetUpperPrime * newScale);
                            foreach (Axis2D axis in alignedAxes)
                            {
                                axis.AxisTotalLength = plotLength + margin.Total();
                            }
                        }
                        if (newScale * deltaLower <= minPlotLength)
                        {
                            // Axis is fixed to minPlotLength
                            newScale = minPlotLength / deltaLower;
                            margin   = new Thickness1D(limitingLowerSemiWidth - offsetLower * newScale, limitingUpperSemiWidth - offsetUpperPrime * newScale);
                            foreach (Axis2D axis in alignedAxes)
                            {
                                axis.AxisTotalLength = minPlotLength + margin.Total();
                            }
                        }
                        // otherwise, axis is unfixed.
                        margin = new Thickness1D(limitingLowerSemiWidth - offsetLower * newScale, limitingUpperSemiWidth - offsetUpperPrime * newScale);
                        foreach (Axis2D axis in alignedAxes)
                        {
                            axis.RescaleAxis(newScale * deltaLower / (axis.MaxTransformed - axis.MinTransformed), margin);
                        }
                        break;
                    }
                    if (reset == true)
                    {
                        break;
                    }
                }
                if (reset == true)
                {
                    tickIndex = 0;
                }
                else
                {
                    tickIndex++;
                }
            }
            if (nRescales == 10)
            {
                Console.WriteLine("Many rescales...");
            }
        }
Beispiel #3
0
 /// <summary>
 /// Reset AxisMargin, keeping TotalLength the same.
 /// </summary>
 /// <param name="newScale"></param>
 internal void ResetAxisMargin(Thickness1D newMargin)
 {
     AxisPadding = newMargin;
     double axisLength = AxisTotalLength - newMargin.Total();
     Scale = axisLength / (MaxTransformed - MinTransformed);
     Offset = Scale * MinTransformed - AxisPadding.Lower;
 }
Beispiel #4
0
 /// <summary>
 /// Change margins and scale, keeping total length constant.
 /// </summary>
 /// <param name="newScale"></param>
 internal void RescaleAxis(double newScale, Thickness1D newMargin)
 {
     AxisPadding = newMargin;
     Scale = newScale;
     Offset = Scale * MinTransformed - AxisPadding.Lower;
 }
Beispiel #5
0
 internal void OverrideAxisScaling(double scale, double offset, Thickness1D axisPadding)
 {
     this.Scale = scale;
     this.Offset = offset;
     this.AxisPadding = axisPadding;
 }
Beispiel #6
0
        /// <summary>
        /// Increase axis margins by amount necessary to ensure both that there is room
        /// for labels and that the necessary axes are aligned.
        /// </summary>
        /// <param name="alignedAxes">List of axes that need to be aligned.</param>
        private static void ExpandAxisMargins(List<Axis2D> alignedAxes, double plotLength)
        {
            // Calculate margins
            Thickness1D margin = new Thickness1D(alignedAxes.Max(axis => axis.AxisPadding.Lower), alignedAxes.Max(axis => axis.AxisPadding.Upper));

            double minPlotLength = 1.0;
            if (plotLength > minPlotLength)
            {
                double newTotalLength = plotLength + margin.Total();
                foreach (Axis2D axis in alignedAxes) axis.AxisTotalLength = newTotalLength;
            }
            else if ((alignedAxes[0].AxisTotalLength - margin.Total()) < minPlotLength)
            {
                foreach (Axis2D axis in alignedAxes) axis.AxisTotalLength = margin.Total() + minPlotLength;
            }

            // Set the margin and update Scale and Offset.
            foreach (Axis2D axis in alignedAxes) axis.ResetAxisMargin(margin);
            
            int tickIndex = 0;
            int maxTickIndex = alignedAxes.Max(axis => axis.Ticks.Length) / 2;
            int[] tickPair = new int[2];
            Axis2D limitingLowerAxis = null;
            int limitingLowerTickIndex = 0;
            double limitingLowerSemiWidth = margin.Lower;
            Axis2D limitingUpperAxis = null;
            int limitingUpperTickIndex = 0;
            double limitingUpperSemiWidth = margin.Upper;
            double offsetLower = 0;
            double deltaLower = alignedAxes[0].MaxTransformed - alignedAxes[0].MinTransformed;
            double deltaUpper = deltaLower;
            double axisTotalLength = alignedAxes[0].AxisTotalLength;
            double offsetUpper = 0;

            int nRescales = 0; // for diagnosic purposes only

            while ((tickIndex <= maxTickIndex) && (nRescales < 10))
            {
                bool reset = false;
                // if a rescaling is required, start again from the beginning.
                for (int i = 0; i < alignedAxes.Count; ++i)
                {
                    Axis2D currentAxis = alignedAxes[i];
                    tickPair[0] = tickIndex;
                    tickPair[1] = currentAxis.TicksTransformed.Length - 1 - tickIndex;
                    if ((currentAxis.TicksTransformed.Length - 1 - tickIndex) < tickIndex) continue;
                    for (int j = 0; j <= 1; ++j)
                    {
                        int index = tickPair[j];
                        if (!currentAxis.LabelsVisible || currentAxis.TickLabelCache[index].Label.Text == "" || !currentAxis.TickLabelCache[index].IsShown) continue;
                        if ((currentAxis.Scale * currentAxis.TicksTransformed[index] - currentAxis.Offset - currentAxis.LimitingTickLabelSizeForLength(index) / 2) < -0.1)
                        {
                            // need to rescale axes
                            limitingLowerAxis = currentAxis;
                            limitingLowerTickIndex = index;
                            limitingLowerSemiWidth = currentAxis.LimitingTickLabelSizeForLength(index) / 2;
                            offsetLower = currentAxis.TicksTransformed[index] - currentAxis.MinTransformed;
                            deltaLower = currentAxis.MaxTransformed - currentAxis.MinTransformed;
                        }
                        else if ((currentAxis.Scale * currentAxis.TicksTransformed[index] - currentAxis.Offset + currentAxis.LimitingTickLabelSizeForLength(index) / 2) > (currentAxis.AxisTotalLength + 0.1))
                        {
                            // need to rescale axes
                            limitingUpperAxis = currentAxis;
                            limitingUpperTickIndex = index;
                            limitingUpperSemiWidth = currentAxis.LimitingTickLabelSizeForLength(index) / 2;
                            offsetUpper = currentAxis.MaxTransformed - currentAxis.TicksTransformed[index];
                            deltaUpper = currentAxis.MaxTransformed - currentAxis.MinTransformed;
                        }
                        else continue;
                        
                        // Reset required:
                        reset = true; nRescales++;
                        double offsetUpperPrime = offsetUpper * deltaLower / deltaUpper;
                        
                        // scale for lower-limiting axis
                        double newScale = (axisTotalLength - limitingLowerSemiWidth - limitingUpperSemiWidth) /
                            (deltaLower - offsetLower - offsetUpperPrime);
                        if (plotLength > minPlotLength)
                        {
                            // Axis is fixed to plotLength.
                            newScale = plotLength / deltaLower;
                            margin = new Thickness1D(limitingLowerSemiWidth - offsetLower * newScale, limitingUpperSemiWidth - offsetUpperPrime * newScale);
                            foreach (Axis2D axis in alignedAxes) axis.AxisTotalLength = plotLength + margin.Total();
                        }
                        if (newScale * deltaLower <= minPlotLength) 
                        {
                            // Axis is fixed to minPlotLength
                            newScale = minPlotLength / deltaLower;
                            margin = new Thickness1D(limitingLowerSemiWidth - offsetLower * newScale, limitingUpperSemiWidth - offsetUpperPrime * newScale);
                            foreach (Axis2D axis in alignedAxes) axis.AxisTotalLength = minPlotLength + margin.Total();
                        }
                        // otherwise, axis is unfixed.
                        margin = new Thickness1D(limitingLowerSemiWidth - offsetLower * newScale, limitingUpperSemiWidth - offsetUpperPrime * newScale);
                        foreach (Axis2D axis in alignedAxes) axis.RescaleAxis(newScale * deltaLower / (axis.MaxTransformed - axis.MinTransformed), margin);
                        break;
                    }
                    if (reset == true) break;
                }
                if (reset == true) tickIndex = 0;
                else tickIndex++;
            }
            if (nRescales == 10)
            {
                Console.WriteLine("Many rescales...");
            }
        }
Beispiel #7
0
 /// <summary>
 /// Change margins and scale, keeping total length constant.
 /// </summary>
 /// <param name="newScale"></param>
 internal void RescaleAxis(double newScale, Thickness1D newMargin)
 {
     AxisPadding = newMargin;
     Scale       = newScale;
     Offset      = Scale * MinTransformed - AxisPadding.Lower;
 }
Beispiel #8
0
 internal void OverrideAxisScaling(double scale, double offset, Thickness1D axisPadding)
 {
     this.Scale       = scale;
     this.Offset      = offset;
     this.AxisPadding = axisPadding;
 }