The drawing API rect object

The drawing API rect object which be added to your chart and provides a way for you to give your charts extra interactivity

[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>
    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
• Shadow
• Interactive features
• Events
• Miscellaneous

Colors

Property	Description	Default
strokestyle	The color used to stroke the circle.	transparent
fillstyle	The color used to fill the circle.	red

Shadow

Property	Description	Default
shadow	This controls whether the shadow is enabled or not.	false
shadowColor	The color of the shadow.	gray
shadowOffsetx	The X offset that the shadow is drawn at.	3
shadowOffsety	The Y offset that the shadow is drawn at.	3
shadowBlur	The severity of the shadow blur.	5

Interactive features

Property	Description	Default
tooltips	The tooltip for the circle. Even though you can only have one - this should still be an array: mycircle.set('tooltips', ['The tooltip']);	null
tooltipsEvent	This can be onclick or onmousemove and controls what event is used to trigger the tooltip.	onclick
tooltipsHighlight	This stipulates whether the circle will be highlighted when the tooltip is shown.	true
tooltipsValign	This is aligned to the top of the Rect or the center.	top
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.	false

Events

Property	Description	Default
eventsClick	If you want to add your own onclick function you can do so by assigning it to this property. See here for details.	null
eventsMousemove	If you want to add your own onmousemove function you can do so by assigning it to this property. See here for details.	null

Miscellaneous

Property	Description	Default
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. Its passed the shape object as an argument.	null
highlightStroke	This is the color that the circle is highlighted (the stroke) in when the tooltip is shown.	black
highlightFill	This is the color that the circle is highlighted in (the fill) when the tooltip is shown.	rgba(255,255,255,0.7)