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Feature/rounded steps #758

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8 changes: 7 additions & 1 deletion lib/morris.grid.coffee
Original file line number Diff line number Diff line change
Expand Up @@ -97,7 +97,8 @@ class Morris.Grid extends Morris.EventEmitter
dateFormat: null
axes: true
freePosition: false
grid: true
grid: true,
roundYSteps: false,
gridLineColor: '#aaa'
gridStrokeWidth: 0.5
gridTextColor: '#888'
Expand Down Expand Up @@ -264,6 +265,11 @@ class Morris.Grid extends Morris.EventEmitter
gmin = Math.floor(ymin / unit) * unit
gmax = Math.ceil(ymax / unit) * unit
step = (gmax - gmin) / (nlines - 1)

# round steps for the Y axes
if this.options.roundYSteps
step = Math.ceil(step)

if unit == 1 and step > 1 and Math.ceil(step) != step
step = Math.ceil(step)
gmax = gmin + step * (nlines - 1)
Expand Down
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