components.nf-crosshair Class
A component that adds a "crosshair" to an nf-graph that follows the mouse
while it's hovering over the graph content.
Item Index
Methods
Methods
_trackedDataChanged
()
private
Observes changes to tracked data and sends the didTrack action.
init
()
Initalization method that gets the nf-graph parent
and assigns it to graph
NOTE: all object that mixin and have init, must call super.init()
Properties
didTrack
String
The action to send on didTrack.
Default: null
height
Number
The height of the crosshair in pixels
hoverData
Object an object with the following values:
- point: an x, y pair for the exact px coordinates inside the graph-content
- graphX: domain x value at mouse position
- graphY: domain y value at mouse position
- x: nearest x data value
- y: nearest y data value
- data: nearest raw data
- renderX: domain x value to render a tracking dot at (stacked areas are offset)
- renderY: domain x value to render a tracking dot at (stacked areas are offset)
- mouseX: mouse x position in pixels
- mouseY: mouse y position in pixels
The value of the data that is being tracked by the component, ONLY if the graph-content is currently being hovered.
Default: null
isVisible
Boolean
The visibility of the component
Default: false
showTrackingDot
Boolean
Gets or sets whether the tracking dot should be shown at all.
Default: true
trackedData
Object an object with the following values:
- point: an x, y pair for the exact px coordinates inside the graph-content
- graphX: domain x value at mouse position
- graphY: domain y value at mouse position
- x: nearest x data value
- y: nearest y data value
- data: nearest raw data
- renderX: domain x value to render a tracking dot at (stacked areas are offset)
- renderY: domain x value to render a tracking dot at (stacked areas are offset)
- mouseX: mouse x position in pixels
- mouseY: mouse y position in pixels
The value of the data that is being tracked by the component.
Default: null
trackingDotRadius
Number
The radius of the tracking dot in pixels
Default: 2.5
trackingMode
String
Gets or sets the tracking mode of the component.
Possible values are:
- 'none': no tracking behavior
- 'hover': only track while mouse hover
- 'snap-last': track while mouse hover, but snap to the last data element when not hovering
- 'snap-first': track while mouse hover, but snap to the first data element when not hovering
- 'selected-hover': The same as
'hover'tracking mode, but only when the compononent is selected - 'selected-snap-last': The same as
'snap-last'tracking mode, but only when the compononent is selected - 'selected-snap-first': The same as
'snap-first'tracking mode, but only when the compononent is selected
Default: 'none'
width
Number
The width of the crosshair in pixels
x
Number
The x position of the crosshairs
Default: 0
y
Number
The y position of the crosshairs
Default: 0