Class XAxis

java.lang.Object
org.jCharts.axisChart.axis.Axis
org.jCharts.axisChart.axis.XAxis
All Implemented Interfaces:
Serializable, HTMLTestable

public final class XAxis extends Axis implements HTMLTestable
See Also:
  • Field Details

    • xLabelFilter

      private int xLabelFilter
    • startTicksAtAxis

      private boolean startTicksAtAxis
  • Constructor Details

    • XAxis

      public XAxis(AxisChart axisChart, int numberOfScaleItems)
      Parameters:
      axisChart -
      numberOfScaleItems -
  • Method Details

    • computeMinimumHeightNeeded

      public void computeMinimumHeightNeeded(String axisTitle)
      Computes the minimum pixel height required for the X-Axis. Includes space, if needed, for: axis title + padding, axis values + tick padding, and tick marks.
      Parameters:
      axisTitle -
    • renderAxisTitle

      private void renderAxisTitle(String axisTitle, Graphics2D graphics2D, AxisTypeProperties axisTypeProperties)
      Computes the number of pixels between each value on the axis. public void computeScalePixelWidth( int numberOfValuesOnXAxis ) { super.setScalePixelWidth( super.getPixelLength() / numberOfValuesOnXAxis ); } /****************************************************************************************************
      Parameters:
      axisTitle -
      graphics2D -
      axisTypeProperties -
    • computeShouldTickStartAtYAxis

      public void computeShouldTickStartAtYAxis(IAxisDataSeries iAxisDataSeries, AxisTypeProperties axisTypeProperties)
      Determines if we should start x-axis ticks at the y-axis or space it out a half a scale item width.
      Parameters:
      iAxisDataSeries -
      axisTypeProperties -
    • computeTickStart

      public void computeTickStart()
      Computes the screen pixel location of the first tick mark
    • computeScalePixelWidth

      public void computeScalePixelWidth()
      Computes the number of pixels between each value on the axis.
      Overrides:
      computeScalePixelWidth in class Axis
    • render

      public void render(Graphics2D graphics2D, AxisProperties axisProperties, String axisTitle)
      Renders the YAxis on the passes Graphics2D object
      Parameters:
      graphics2D -
      axisProperties -
      axisTitle -
    • computeLabelFilter

      public void computeLabelFilter()
      Method to compute the filter to use on the x-axis label display so labels do not overlap
    • toHTML

      public void toHTML(HTMLGenerator htmlGenerator)
      Enables the testing routines to display the contents of this Object.
      Specified by:
      toHTML in interface HTMLTestable
      Overrides:
      toHTML in class Axis
      Parameters:
      htmlGenerator -
    • computeAxisCoordinate

      public float computeAxisCoordinate(float origin, double value, double axisMinValue)
      Takes a value and determines the screen coordinate it should be drawn at. THe only difference between this and the y-axis is we add to the origin versus subtract from it.
      Parameters:
      origin -
      value -
      axisMinValue - the minimum value on the axis
      Returns:
      float the screen pixel coordinate