nv . models . multiBarHorizontal = function ( ) {
var margin = { top : 0 , right : 0 , bottom : 0 , left : 0 } ,
width = 960 ,
height = 500 ,
id = Math . floor ( Math . random ( ) * 10000 ) , //Create semi-unique ID in case user doesn't select one
x = d3 . scale . ordinal ( ) ,
y = d3 . scale . linear ( ) ,
getX = function ( d ) { return d . x } ,
getY = function ( d ) { return d . y } ,
forceY = [ 0 ] , // 0 is forced by default.. this makes sense for the majority of bar graphs... user can always do chart.forceY([]) to remove
color = d3 . scale . category20 ( ) . range ( ) ,
stacked = false ,
showValues = false ,
valuePadding = 60 ,
valueFormat = d3 . format ( ',.2f' ) ,
delay = 1200 ,
xDomain , yDomain ,
x0 , y0 ;
var dispatch = d3 . dispatch ( 'chartClick' , 'elementClick' , 'elementDblClick' , 'elementMouseover' , 'elementMouseout' ) ;
function chart ( selection ) {
selection . each ( function ( data ) {
var availableWidth = width - margin . left - margin . right ,
availableHeight = height - margin . top - margin . bottom ;
if ( stacked )
data = d3 . layout . stack ( )
. offset ( 'zero' )
. values ( function ( d ) { return d . values } )
. y ( getY )
( data ) ;
//add series index to each data point for reference
data = data . map ( function ( series , i ) {
series . values = series . values . map ( function ( point ) {
point . series = i ;
return point ;
} ) ;
return series ;
} ) ;
var seriesData = ( xDomain && yDomain ) ? [ ] : // if we know xDomain and yDomain, no need to calculate
data . map ( function ( d ) {
return d . values . map ( function ( d , i ) {
return { x : getX ( d , i ) , y : getY ( d , i ) , y0 : d . y0 }
} )
} ) ;
x . domain ( xDomain || d3 . merge ( seriesData ) . map ( function ( d ) { return d . x } ) )
. rangeBands ( [ 0 , availableHeight ] , . 1 ) ;
y . domain ( yDomain || d3 . extent ( d3 . merge ( seriesData ) . map ( function ( d ) { return d . y + ( stacked ? d . y0 : 0 ) } ) . concat ( forceY ) ) )
//.range([0, availableWidth]);
if ( showValues && ! stacked ) y . range ( [ ( y . domain ( ) [ 0 ] < 0 ? valuePadding : 0 ) , availableWidth - ( y . domain ( ) [ 1 ] > 0 ? valuePadding : 0 ) ] ) ;
else y . range ( [ 0 , availableWidth ] ) ;
//store old scales if they exist
x0 = x0 || x ;
//y0 = y0 || y;
y0 = y0 || d3 . scale . linear ( ) . domain ( y . domain ( ) ) . range ( [ y ( 0 ) , y ( 0 ) ] ) ;
var wrap = d3 . select ( this ) . selectAll ( 'g.wrap.multibarHorizontal' ) . data ( [ data ] ) ;
var wrapEnter = wrap . enter ( ) . append ( 'g' ) . attr ( 'class' , 'wrap nvd3 multibarHorizontal' ) ;
var defsEnter = wrapEnter . append ( 'defs' ) ;
var gEnter = wrapEnter . append ( 'g' ) ;
gEnter . append ( 'g' ) . attr ( 'class' , 'groups' ) ;
var g = wrap . select ( 'g' )
wrap . attr ( 'transform' , 'translate(' + margin . left + ',' + margin . top + ')' ) ;
var groups = wrap . select ( '.groups' ) . selectAll ( '.group' )
. data ( function ( d ) { return d } , function ( d ) { return d . key } ) ;
groups . enter ( ) . append ( 'g' )
. style ( 'stroke-opacity' , 1e-6 )
. style ( 'fill-opacity' , 1e-6 ) ;
d3 . transition ( groups . exit ( ) )
. style ( 'stroke-opacity' , 1e-6 )
. style ( 'fill-opacity' , 1e-6 )
. remove ( ) ;
groups
. attr ( 'class' , function ( d , i ) { return 'group series-' + i } )
. classed ( 'hover' , function ( d ) { return d . hover } )
. style ( 'fill' , function ( d , i ) { return color [ i % color . length ] } )
. style ( 'stroke' , function ( d , i ) { return color [ i % color . length ] } ) ;
d3 . transition ( groups )
. style ( 'stroke-opacity' , 1 )
. style ( 'fill-opacity' , . 75 ) ;
var bars = groups . selectAll ( 'g.bar' )
. data ( function ( d ) { return d . values } ) ;
bars . exit ( ) . remove ( ) ;
var barsEnter = bars . enter ( ) . append ( 'g' )
. attr ( 'transform' , function ( d , i , j ) {
return 'translate(' + y0 ( stacked ? d . y0 : 0 ) + ',' + ( stacked ? 0 : ( j * x . rangeBand ( ) / data . length ) + x ( getX ( d , i ) ) ) + ')'
} )
. on ( 'mouseover' , function ( d , i ) { //TODO: figure out why j works above, but not here
d3 . select ( this ) . classed ( 'hover' , true ) ;
dispatch . elementMouseover ( {
value : getY ( d , i ) ,
point : d ,
series : data [ d . series ] ,
pos : [ y ( getY ( d , i ) + ( stacked ? d . y0 : 0 ) ) , x ( getX ( d , i ) ) + ( x . rangeBand ( ) * ( stacked ? data . length / 2 : d . series + . 5 ) / data . length ) ] ,
pointIndex : i ,
seriesIndex : d . series ,
e : d3 . event
} ) ;
} )
. on ( 'mouseout' , function ( d , i ) {
d3 . select ( this ) . classed ( 'hover' , false ) ;
dispatch . elementMouseout ( {
value : getY ( d , i ) ,
point : d ,
series : data [ d . series ] ,
pointIndex : i ,
seriesIndex : d . series ,
e : d3 . event
} ) ;
} )
. on ( 'click' , function ( d , i ) {
dispatch . elementClick ( {
value : getY ( d , i ) ,
point : d ,
series : data [ d . series ] ,
pos : [ x ( getX ( d , i ) ) + ( x . rangeBand ( ) * ( stacked ? data . length / 2 : d . series + . 5 ) / data . length ) , y ( getY ( d , i ) + ( stacked ? d . y0 : 0 ) ) ] , // TODO: Figure out why the value appears to be shifted
pointIndex : i ,
seriesIndex : d . series ,
e : d3 . event
} ) ;
d3 . event . stopPropagation ( ) ;
} )
. on ( 'dblclick' , function ( d , i ) {
dispatch . elementDblClick ( {
value : getY ( d , i ) ,
point : d ,
series : data [ d . series ] ,
pos : [ x ( getX ( d , i ) ) + ( x . rangeBand ( ) * ( stacked ? data . length / 2 : d . series + . 5 ) / data . length ) , y ( getY ( d , i ) + ( stacked ? d . y0 : 0 ) ) ] , // TODO: Figure out why the value appears to be shifted
pointIndex : i ,
seriesIndex : d . series ,
e : d3 . event
} ) ;
d3 . event . stopPropagation ( ) ;
} ) ;
barsEnter . append ( 'rect' )
. attr ( 'width' , 0 )
. attr ( 'height' , x . rangeBand ( ) / ( stacked ? 1 : data . length ) )
if ( showValues && ! stacked ) {
barsEnter . append ( 'text' )
. attr ( 'text-anchor' , function ( d , i ) { return getY ( d , i ) < 0 ? 'end' : 'start' } )
bars . selectAll ( 'text' )
. attr ( 'y' , x . rangeBand ( ) / 2 )
. attr ( 'dy' , '-.5em' )
. text ( function ( d , i ) { return valueFormat ( getY ( d , i ) ) } )
d3 . transition ( bars )
. delay ( function ( d , i ) { return i * delay / data [ 0 ] . values . length } )
. selectAll ( 'text' )
. attr ( 'dx' , function ( d , i ) { return getY ( d , i ) < 0 ? - 4 : y ( getY ( d , i ) ) - y ( 0 ) + 4 } )
} else {
bars . selectAll ( 'text' ) . remove ( ) ;
}
bars
. attr ( 'class' , function ( d , i ) { return getY ( d , i ) < 0 ? 'bar negative' : 'bar positive' } )
//.attr('transform', function(d,i,j) {
//return 'translate(' + y0(stacked ? d.y0 : 0) + ',' + x(getX(d,i)) + ')'
//})
if ( stacked )
d3 . transition ( bars )
. delay ( function ( d , i ) { return i * delay / data [ 0 ] . values . length } )
. attr ( 'transform' , function ( d , i ) {
//return 'translate(' + y(d.y0) + ',0)'
return 'translate(' + y ( d . y0 ) + ',' + ( stacked ? 0 : ( j * x . rangeBand ( ) / data . length ) ) + ')'
} )
. selectAll ( 'rect' )
. attr ( 'width' , function ( d , i ) {
return Math . abs ( y ( getY ( d , i ) + d . y0 ) - y ( d . y0 ) )
} )
. attr ( 'height' , x . rangeBand ( ) ) ;
else
d3 . transition ( bars )
. delay ( function ( d , i ) { return i * delay / data [ 0 ] . values . length } )
. attr ( 'transform' , function ( d , i ) {
//TODO: stacked must be all positive or all negative, not both?
return 'translate(' +
( getY ( d , i ) < 0 ? y ( getY ( d , i ) ) : y ( 0 ) )
+ ',' +
( d . series * x . rangeBand ( ) / data . length
+
x ( getX ( d , i ) ) )
+ ')'
} )
. selectAll ( 'rect' )
. attr ( 'height' , x . rangeBand ( ) / data . length )
. attr ( 'width' , function ( d , i ) {
return Math . abs ( y ( getY ( d , i ) ) - y ( 0 ) )
} ) ;
/ *
if ( stacked )
d3 . transition ( bars )
. delay ( function ( d , i ) { return i * 1000 / data [ 0 ] . values . length } )
. attr ( 'x' , function ( d , i ) {
return y ( d . y0 ) ;
} )
. attr ( 'width' , function ( d , i ) {
return Math . abs ( y ( getY ( d , i ) + d . y0 ) - y ( d . y0 ) )
} )
. each ( 'end' , function ( ) {
d3 . transition ( d3 . select ( this ) )
. attr ( 'y' , function ( d , i ) {
return 0
} )
. attr ( 'height' , x . rangeBand ( ) ) ;
} )
else
d3 . transition ( bars )
. delay ( function ( d , i ) { return i * 1200 / data [ 0 ] . values . length } )
. attr ( 'y' , function ( d , i ) {
return d . series * x . rangeBand ( ) / data . length
} )
. attr ( 'height' , x . rangeBand ( ) / data . length )
. each ( 'end' , function ( ) {
d3 . transition ( d3 . select ( this ) )
. attr ( 'x' , function ( d , i ) {
return getY ( d , i ) < 0 ? //TODO: stacked must be all positive or all negative, not both?
y ( getY ( d , i ) ) :
y ( 0 )
} )
. attr ( 'width' , function ( d , i ) {
return Math . abs ( y ( getY ( d , i ) ) - y ( 0 ) )
} ) ;
} )
* /
//TODO: decide if this makes sense to add into all the models for ease of updating (updating without needing the selection)
chart . update = function ( ) {
selection . transition ( ) . call ( chart ) ;
}
//store old scales for use in transitions on update, to animate from old to new positions, and sizes
x0 = x . copy ( ) ;
y0 = y . copy ( ) ;
} ) ;
return chart ;
}
chart . dispatch = dispatch ;
chart . x = function ( _ ) {
if ( ! arguments . length ) return getX ;
getX = _ ;
return chart ;
} ;
chart . y = function ( _ ) {
if ( ! arguments . length ) return getY ;
getY = _ ;
return chart ;
} ;
chart . margin = function ( _ ) {
if ( ! arguments . length ) return margin ;
margin = _ ;
return chart ;
} ;
chart . width = function ( _ ) {
if ( ! arguments . length ) return width ;
width = _ ;
return chart ;
} ;
chart . height = function ( _ ) {
if ( ! arguments . length ) return height ;
height = _ ;
return chart ;
} ;
chart . xScale = function ( _ ) {
if ( ! arguments . length ) return x ;
x = _ ;
return chart ;
} ;
chart . yScale = function ( _ ) {
if ( ! arguments . length ) return y ;
y = _ ;
return chart ;
} ;
chart . xDomain = function ( _ ) {
if ( ! arguments . length ) return xDomain ;
xDomain = _ ;
return chart ;
} ;
chart . yDomain = function ( _ ) {
if ( ! arguments . length ) return yDomain ;
yDomain = _ ;
return chart ;
} ;
chart . forceY = function ( _ ) {
if ( ! arguments . length ) return forceY ;
forceY = _ ;
return chart ;
} ;
chart . stacked = function ( _ ) {
if ( ! arguments . length ) return stacked ;
stacked = _ ;
return chart ;
} ;
chart . color = function ( _ ) {
if ( ! arguments . length ) return color ;
color = _ ;
return chart ;
} ;
chart . id = function ( _ ) {
if ( ! arguments . length ) return id ;
id = _ ;
return chart ;
} ;
chart . delay = function ( _ ) {
if ( ! arguments . length ) return delay ;
delay = _ ;
return chart ;
} ;
chart . showValues = function ( _ ) {
if ( ! arguments . length ) return showValues ;
showValues = _ ;
return chart ;
} ;
chart . valueFormat = function ( _ ) {
if ( ! arguments . length ) return valueFormat ;
valueFormat = _ ;
return chart ;
} ;
chart . valuePadding = function ( _ ) {
if ( ! arguments . length ) return valuePadding ;
valuePadding = _ ;
return chart ;
} ;
return chart ;
}