SVGGraph options: crosshairs
- Option name:
 crosshairs- Default value:
 false- Added in version:
 - 2.15.1
 - Data type:
 - boolean [?]
The datatypes used in this documentation for specifying SVGGraph options are described below. All options can be a literal value of the data type described, a variable containing the data type, or an expression that will produce the data type when evaluated (and they must always be valid PHP expressions).
- array
 - An 
array, the number and data types of its members will depend on the option for which is it used. - boolean
 - A boolean 
TRUEorFALSEvalue, or any values that convert easily such as1,"1",0and"". - callback
 - A callable function, which can be either the name of a function or an anonymous function itself.
 - colour
 - Any of the colour values supported by SVG inside a single or double
    quoted string. These include three and six digit hex codes, RGB and
    RGBA colours, and colour names. SVG uses 
"none"for no colour, which generally leaves things transparent. - fill
 - A colour value or one of the gradients and patterns supported by SVGGraph. See the SVGGraph colours page for details.
 - integer
 - A negative or positive whole number or 
0. - measurement
 - An 
integerorfloatvalue, or a string containing a number followed by one of these CSS units:px,in,cm,mm,pt,pc. - number
 - Any number supported by PHP, for example 
1or-3.2or1.63e5orM_PI. - string
 - Single or double quoted strings. Remember to double-quote your strings
      if you are inserting a line break: 
"Line 1\nLine 2". 
 - Per-dataset:
 - no
 - Supported by:
 - BarAndLineGraph BarGraph BoxAndWhiskerGraph BubbleGraph CandlestickGraph FloatingBarGraph GanttChart GroupedBarGraph HorizontalBarGraph HorizontalFloatingBarGraph HorizontalGroupedBarGraph HorizontalStackedBarGraph LineGraph MultiLineGraph MultiScatterGraph MultiSteppedLineGraph PopulationPyramid ScatterGraph StackedBarAndLineGraph StackedBarGraph StackedGroupedBarGraph StackedLineGraph SteppedLineGraph
 - Tags:
 
Enables Javascript crosshairs.
This option enables crosshairs that follow the cursor around the graph, along
with a text label that displays the current position. The lines and text label
can be turned on and off independently - see the crosshairs_show_h,
crosshairs_show_v and crosshairs_show_text options.
To change the appearance of the crosshairs and text label, see the
crosshairs_stroke_width, crosshairs_dash, crosshairs_colour,
crosshairs_opacity, crosshairs_text_colour and crosshairs_text_font
and several other options.
