# RGraph: HTML5 canvas graph library - Horizontal Progress bar documentation

The example file is here.

    <script>
        window.onload = function ()
        {
            var myProgress = new RGraph.HProgess('myProgress', 78, 100);
            myProgress.Set('chart.colors', ['red']);
            myProgress.Draw();
        }
    </script>

## Available properties

You can use these properties to control how the progress bar apears. You can set them by using the Set() method. Eg:

myProgress.Set('name', 'value');

- Chart configuration
- Margins
- Colors
- Shadow
- Labels and text
- Scale
- Titles
- Interactive features
- Zoom

### Chart configuration

chart.tickmarks
Whether the tickmarks are drawn.
Default: true
chart.tickmarks.color
The color used for tickmarks.
Default: black
chart.tickmarks.inner
This controls whether the bar has inner tickmarks
Default: false
chart.value
The indicated value. You don't need to set this because it's one of the arguments to the constructor.
chart.max
The maximum value. You don't need to set this because it's one of the arguments to the constructor.
chart.numticks
How many tick marks there are.
Default: 10
chart.numticks.inner
How many inner tick marks there are.
Default: 50
chart.arrows
This stipulates that two indicator arrows are drawn. It works best if you have tickmarks off, and no title.
Default: false

### Margins

chart.gutter
The size of the gutter.
Default: 25

### Colors

chart.colors
The colors of the bar(s). This can be a solid color, or a gradient that you create.
Default: [#0c0]
chart.background.color
The background color.
Default: #eee

### Shadow

chart.shadow
Whether the progress bar has a shadow. This uses the canvas shadow API and therefore is only supported on Chrome 2, Safari 3.1 and Firefox 3.1 (and above).
Default: false
chart.shadow.offsetx
The X offset of the progress bar shadow.
Default: 3
chart.shadow.offsety
The Y offset of the progress bar shadow.
Default: 3
chart.shadow.color
The color of the shadow.
Default: rgba(0,0,0,0.5)
chart.shadow.blur
The blurring effect that is applied to the shadow.
Default: 3

### Labels and text

chart.text.font
The font used to render the text.
Default: Verdana
chart.text.color
The color of the labels.
Default: black
chart.text.size
The size of the text (in points).
Default: 10
chart.labels
Labels that are applied to the graph.
Default: An empty array

### Scale

chart.units.pre
The units that the Y scale is measured in (these are preppend to the number).
Default: none
chart.units.post
The units that the Y scale is measured in (these are appended to the number).
Default: none

### Titles

chart.title
The title of the progress bar.
Default: An empty string
chart.title.hpos
This allows you to completely override the horizontal positioning of the title. It should be a number between 0 and 1, and is multiplied with the whole width of the canvas and then used as the horizontal position.
Default: null
chart.title.vpos
This allows you to completely override the vertical positioning of the title. It should be a number between 0 and 1, and is multiplied with the gutter and then used as the vertical position. It can be useful if you need to have a large gutter.
Default: null
chart.title.color
The color of the title.
Default: black

### Interactive features

chart.tooltips
An array, albeit one element only. This is shown when the progress bar is clicked on. This can contain HTML.
Default: An empty array
chart.tooltips.effect
The animated effect used for showing the tooltip. Can be either fade or expand.
Default: fade
chart.tooltips.css.class
This is the name of the CSS class the graph uses.
Default: RGraph_tooltip
chart.tooltips.override
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
chart.contextmenu
An array of context menu items. More information on context menus is here.
Default: [] (An empty array)
chart.annotatable
Whether annotations are enabled for the chart (ie you can draw on the chart interactively.
Default: false
chart.annotate.color
If you do not allow the use of the palette, then this will be the only colour allowed for annotations.
Default: black
chart.resizable
Defaulting to false, this determines whether your graph will be resizable. Because of the numerous event handlers this has to install code on, This feature is unlikely to work with other dynamic features (the context menu is fine however).
Default: false
chart.adjustable
Defaulting to false, this determines whether your progress bar will be adjustable (click the bar and drag it).
Default: false

### Zoom

chart.zoom.factor
This is the factor that the graph will be zoomed by (bigger values means more zoom)
Default: 1.5
chart.zoom.fade.in
Whether the zoomed canvas fades in or not. This also can be used to control the fade in for the zoom in thumbnail mode.
Default: true
chart.zoom.fade.out
Whether the zoomed canvas fades out or not. This also can be used to control the fade in for the zoom in thumbnail mode.
Default: true
chart.zoom.hdir
The horizontal direction of the zoom. Possible values are: left, center, right
Default: right
chart.zoom.vdir
The vertical direction of the zoom. Possible values are: up, center, down
Default: down
chart.zoom.delay
The delay (in milliseconds) between frames.
Default: 50
chart.zoom.frames
The number of frames in the zoom animation.
Default: 10
chart.zoom.shadow
Whether or not the zoomed canvas has a shadow or not.
Default: true
chart.zoom.background
Defaulting to true, this determines whether the zoom has a dark, semi-opaque background that covers the entire web page.
Default: true