当向示例甘特图配置 ( http://jsfiddle.net/r6emu )添加大量系列时,图表区域的顶部和底部会添加额外的高度。有什么办法可以防止额外的区域/线?
此处提供的示例:http: //jsfiddle.net/r6emu/1677/
// Define tasks
var tasks = [{
name: 'Sleep',
intervals: [{ // From-To pairs
from: Date.UTC(0, 0, 0, 0),
to: Date.UTC(0, 0, 0, 6)
}, {
from: Date.UTC(0, 0, 0, 22),
to: Date.UTC(0, 0, 0, 24)
}]
}, {
name: 'Family time',
intervals: [{ // From-To pairs
from: Date.UTC(0, 0, 0, 6),
to: Date.UTC(0, 0, 0, 16)
}, {
from: Date.UTC(0, 0, 0, 16),
to: Date.UTC(0, 0, 0, 22)
}]
}, {
name: 'Eat',
intervals: [{ // From-To pairs
from: Date.UTC(0, 0, 0, 7),
to: Date.UTC(0, 0, 0, 8),
label: 'Breakfast'
}, {
from: Date.UTC(0, 0, 0, 12),
to: Date.UTC(0, 0, 0, 12, 30)
}, {
from: Date.UTC(0, 0, 0, 16),
to: Date.UTC(0, 0, 0, 17),
label: 'Dinner'
}, {
from: Date.UTC(0, 0, 0, 20, 30),
to: Date.UTC(0, 0, 0, 21)
}]
},
[... many series removed ...]
{
name: 'Eat',
intervals: [{ // From-To pairs
from: Date.UTC(0, 0, 0, 7),
to: Date.UTC(0, 0, 0, 8),
label: 'Breakfast'
}, {
from: Date.UTC(0, 0, 0, 12),
to: Date.UTC(0, 0, 0, 12, 30)
}, {
from: Date.UTC(0, 0, 0, 16),
to: Date.UTC(0, 0, 0, 17),
label: 'Dinner'
}, {
from: Date.UTC(0, 0, 0, 20, 30),
to: Date.UTC(0, 0, 0, 21)
}]
}, {
name: 'Work',
intervals: [{ // From-To pairs
from: Date.UTC(0, 0, 0, 8),
to: Date.UTC(0, 0, 0, 16)
}]
}];
// Define milestones
var milestones = [{
name: 'Get to bed',
time: Date.UTC(0, 0, 0, 22),
task: 1,
marker: {
symbol: 'triangle',
lineWidth: 1,
lineColor: 'black',
radius: 8
}
}];
// re-structure the tasks into line seriesvar series = [];
var series = [];
$.each(tasks.reverse(), function(i, task) {
var item = {
name: task.name,
data: []
};
$.each(task.intervals, function(j, interval) {
item.data.push({
x: interval.from,
y: i,
label: interval.label,
from: interval.from,
to: interval.to
}, {
x: interval.to,
y: i,
from: interval.from,
to: interval.to
});
// add a null value between intervals
if (task.intervals[j + 1]) {
item.data.push(
[(interval.to + task.intervals[j + 1].from) / 2, null]
);
}
});
series.push(item);
});
// restructure the milestones
$.each(milestones, function(i, milestone) {
var item = Highcharts.extend(milestone, {
data: [[
milestone.time,
milestone.task
]],
type: 'scatter'
});
series.push(item);
});
console.log(series);
// create the chart
var chart = new Highcharts.Chart({
chart: {
renderTo: 'container'
},
title: {
text: 'Daily activities'
},
xAxis: {
type: 'datetime'
},
yAxis: {
tickInterval: 1,
labels: {
formatter: function() {
if (tasks[this.value]) {
return tasks[this.value].name;
}
}
},
startOnTick: false,
endOnTick: false,
title: {
text: 'Activity'
},
minPadding: 0.2,
maxPadding: 0.2
},
legend: {
enabled: false
},
tooltip: {
formatter: function() {
return '<b>'+ tasks[this.y].name + '</b><br/>' +
Highcharts.dateFormat('%H:%M', this.point.options.from) +
' - ' + Highcharts.dateFormat('%H:%M', this.point.options.to);
}
},
plotOptions: {
line: {
lineWidth: 9,
marker: {
enabled: false
},
dataLabels: {
enabled: true,
align: 'left',
formatter: function() {
return this.point.options && this.point.options.label;
}
}
}
},
series: series
});