Renderer to draw axis labels with a canvas element to support advanced featrues such as rotated text. This renderer uses a separate rendering engine to draw the text on the canvas. Two modes of rendering the text are available. If the browser has native font support for canvas fonts (currently Mozila 3.5 and Safari 4), you can enable text rendering with the canvas fillText method. You do so by setting the “enableFontSupport” option to true.
Browsers lacking native font support will have the text drawn on the canvas using the Hershey font metrics. Even if the “enableFontSupport” option is true non-supporting browsers will still render with the Hershey font.
|$.jqplot.||Renderer to draw axis labels with a canvas element to support advanced featrues such as rotated text.|
|angle||angle of text, measured clockwise from x axis.|
|show||wether or not to show the tick (mark and label).|
|showLabel||wether or not to show the label.|
|label||label for the axis.|
|fontFamily||CSS spec for the font-family css attribute.|
|fontSize||CSS spec for font size.|
|fontStretch||Multiplier to condense or expand font width.|
|textColor||css spec for the color attribute.|
|enableFontSupport||true to turn on native canvas font support in Mozilla 3.5+ and Safari 4+.|
|pt2px||Point to pixel scaling factor, used for computing height of bounding box around a label.|
this.pt2px = null
Point to pixel scaling factor, used for computing height of bounding box around a label. The labels text renderer has a default setting of 1.4, which should be suitable for most fonts. Leave as null to use default. If tops of letters appear clipped, increase this. If bounding box seems too big, decrease. This is an issue only with the native font renderering capabilities of Mozilla 3.5 and Safari 4 since they do not provide a method to determine the font height.
angle of text, measured clockwise from x axis.
this.angle = 0
wether or not to show the tick (mark and label).
this.show = true
wether or not to show the label.
this.showLabel = true
label for the axis.
this.label = ''
CSS spec for the font-family css attribute.
this.fontFamily = '"Trebuchet MS", Arial, Helvetica, sans-serif'
CSS spec for font size.
this.fontSize = '11pt'
this.fontWeight = 'normal'
Multiplier to condense or expand font width.
this.fontStretch = 1.0
css spec for the color attribute.
this.textColor = '#666666'
true to turn on native canvas font support in Mozilla 3.5+ and Safari 4+.
this.enableFontSupport = true
Point to pixel scaling factor, used for computing height of bounding box around a label.
this.pt2px = null