The RGraph drawing API - The rect object

[No canvas support]

The rect object allows you to add a rectangle to your charts. The rectangle can be used as a way to provide an extra tooltip (for example) to your users.


Usage example

<script>
    $(document).ready(function ()
    {
        var line = new RGraph.Line({
            id: 'cvs',
            data: [4,9,1,3,2,6,5],
            options: {
                labels: ['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'],
                hmargin: 5,
                tickmarks: 'endcircle',
                colors: ['black']
            }
        }).draw()
        
        var rect = new RGraph.Drawing.Rect({
            id: 'cvs',
            x: 35,
            y: line.canvas.height - 35 - 50,
            width: 50,
            height: 50,
            options: {
                strokestyle: 'black',
                fillstyle: 'rgba(255,0,0,0.7)',
                shadow: true,
                tooltips: ['<b>Example</b><br />This is an example tooltip']
            }
        }).draw()
    })
</script>

Properties

 

Colors

strokestyle
The color used to stroke the circle.
Default: transparent

fillstyle
The color used to fill the circle.
Default: red

 

Shadow

shadow
This controls whether the shadow is enabled or not.
Default: false

shadow.color
The color of the shadow.
Default: gray

shadow.offsetx
The X offset that the shadow is drawn at.
Default: 3

shadow.offsety
The Y offset that the shadow is drawn at.
Default: 3

shadow.blur
The severity of the shadow blur.
Default: 5

 

Interactive features

tooltips
The tooltip for the circle. Even though you can only have one - this should still be an array: mycircle.set('tooltips', ['The tooltip']);
Default: null

tooltips.event
This can be onclick or onmousemove and controls what event is used to trigger the tooltip.
Default: onclick

tooltips.highlight
This stipulates whether the circle will be highlighted when the tooltip is shown.
Default: true

tooltips.valign
This is aligned to the top of the Rect or the center.
Default: top

 

Events

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

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

 

Miscellaneous

highlight.stroke
This is the color that the circle is highlighted (the stroke) in when the tooltip is shown.
Default: black

highlight.fill
This is the color that the circle is highlighted in (the fill) when the tooltip is shown.
Default: rgba(255,255,255,0.7)