The drawing API X axis object

<script>
   var bar = new RGraph.Bar({
        id: 'cvs',
        data: [4,8,6,5,6,9,9,4],
        options: {
            axes: false,
            textSize: 14,
            marginBottom: 45,
            colors: ['gradient(white:red)'],
            shadow: false,
            backgroundGridVlines: false,
            backgroundGridBorder: false
        }
    }).draw();
    
    var xaxis = new RGraph.Drawing.XAxis({
        id: 'cvs',
        y: bar.canvas.height - bar.marginBottom,
        options: {
            tooltips: ['The X axis represents each
person teaching at the college.'],
            xaxisLabels: ['Rich','Alex','Johnny','Kev','Pete','Luis','John','Barry'],
            colors: ['#666']
        }
    }).draw();
</script>

colors
An array of colors. Even though it's an array only the first color is used.
Default: ['black']

marginLeft
The left margin of the axis. This can be the same or different to the chart.
Default: 25

marginRight
The right margin of the axis. This can be the same or different to the chart.
Default: 25

marginInner
The (inner) horizontal margin of the axis. Useful for matching up labels/points of the Line chart.
Default: 0

function myFormatter (obj, number)
{
    // Return the formatted number
    return number;
}

xaxis.set('scale.formatter', myFormatter)

xaxis
This option can be specified if you don't want an axis drawn (the labels are still drawn).
Default: true

xaxisPosition
Whether the labels are on top or underneath. This can be top or bottom.
Default: bottom

xaxisLabels
Instead of a scale you can use this to specify labels for the X axis.
Default: null

xaxisLabelsPosition
This can be edge or section and determines how the labels are aligned. For an illustration compare the labels of the Bar chart vs the labels of the Line chart.
Default: section

xaxisLabelsCount
When showing a scale this determines how many labels are shown.
Default: 5

xaxisLabelsFont
The font used to render the text.
Default: null

xaxisLabelsSize
The size of the labels.
Default: null

xaxisLabelsColor
The color of the labels.
Default: null

xaxisLabelsBold
Whether the labels are bold or not.
Default: null

xaxisLabelsItalic
Whether the labels are italic or not.
Default: null

xaxisLabelsOffsetx
The X offset of the labels (in pixels).
Default: 0

xaxisLabelsOffsety
The Y offset of the labels (in pixels).
Default: 0

xaxisLabelsAngle
The angle of the X axis labels. You could, for example, set this to 45.
Default: 0

xaxisTickmarksCount
The number of tickmarks shown on the axis. You may need to +/- 1 to get alignment with grids.
Default: null

xaxisTickmarksAlign
The alignment of the tickmarks and labels. This can be top or bottom.
Default: bottom

xaxisTickmarksLastLeft
This option can be used to prevent the left end tickmark from being drawn.
Default: true

xaxisTickmarksLastRight
This option can be used to prevent the right end tickmark from being drawn.
Default: true

xaxisScaleVisible
This determines whether the scale is displayed.
Default: true

xaxisScaleFormatter
This should be a function that returns the correctly formatted number. For example:

function myFormatter (obj, number)
{
    // Return the formatted number
    return number;
}

xaxis.set('scale.formatter', myFormatter)

Default: null

xaxisScaleDecimals
The number of decimals shown.
Default: 0

xaxisScaleInvert
Whether the scale is inverted (ie minimum value at the top).
Default: false

xaxisScaleZerostart
This determines whether zero is shown.
Default: true

xaxisScaleUnitsPre
The units for the scale. This is prepended to the number.
Default: An empty string

xaxisScaleUnitsPost
The units for the scale. This is appended to the number.
Default: An empty string

xaxisScalePoint
The character used as a decimal point.
Default: .

xaxisScaleThousand
The character used as the thousand separator.
Default: ,

xaxisScaleMax
The maximum value of the scale.
Default: null

xaxisScaleMin
The minimum value of the scale.
Default: 0

xaxisTitle
The title displayed on the X axis.
Default:

xaxisTitleFont
The font used to render the X axis title.
Default: none

xaxisTitleSize
The size of the title.
Default: null

xaxisTitleColor
The color of the title.
Default: null

xaxisTitleBold
Whether the title is bold or not.
Default: null

xaxisTitleItalic
Whether the title is italic or not.
Default: null

yaxisPosition
This can facilitate when you have a Y axis in the center (eg the Horizontal Bar chart).
Default: left

textColor
The color of the text. If not specified then it's the same as the colors option.
Default: null

textFont
The font used when rendering the text.
Default: Arial

textSize
The size used when rendering text.
Default: 10

textBold
Whether the text is bold or not.
Default: 10

textItalic
Whether the text is italic or not.
Default: 10

tooltips
This can be an array of tooltips (only the first element is used) that are shown when the axis is clicked on.
Default: null

tooltipsEvent
This is the event that triggers the tooltips. It can be either click or mousemove.
Default: onclick

tooltipsEffect
The effect used for showing tooltips. Can be either fade or none.
Default: fade

tooltipsCssClass
This is the name of the CSS class the chart uses.
Default: RGraph_tooltip

tooltipsOverride
If you wish to handle showing tooltips yourself, this should be a function object which does just that. There's more information on the tooltips documentation page.
Default: null

tooltipsNohideonclear
Not an option that you'll need particularly often if at all. Setting this to true means that when you call the RGraph.clear() API function tooltip DO NOT get hidden.
Default: false

eventsClick
If you want to add your own click function you can do so by assigning it to this property. See here for details.
Default: null

eventsMousemove
If you want to add your own mousemove function you can do so by assigning it to this property. See here for details.
Default: null

eventsMouseover
If you want to add your own mouseover function you can do so by assigning it to this property. See here for details.
Default: null

eventsMouseout
If you want to add your own mouseout function you can do so by assigning it to this property. See here for details.
Default: null

highlightStyle
By default this is null but you can set it to a function if you wish so that function is called to do the chart highlighting. It's passed the shape object as an argument.
Default: null

linewidth
The linewidth used to draw the axis.
Default: 1