ios图表组合图表:经过图表右轴的条形图
我正在尝试做类似的东西 我将有4个BarChartDataSet分组,2个LineChartDataSet,每个数据集有7个数据点,用户可以随意添加或删除这些数据集 这些条线看起来分组很好,折线图显示了所有7个点 但是,当我向图表中添加更多的BarChartDataSet时,条形图离开了图表的右侧,折线图保持不变,这是我的一个图像序列,从一个LineChartDataSet开始,然后逐个添加BarChartDataSet,一些条形图的值为0,因此很难看到组,请查找底部的0标签 我怎样才能阻止条形图偏离图表右侧 代码如下:ios图表组合图表:经过图表右轴的条形图,ios,charts,bar-chart,linechart,ios-charts,Ios,Charts,Bar Chart,Linechart,Ios Charts,我正在尝试做类似的东西 我将有4个BarChartDataSet分组,2个LineChartDataSet,每个数据集有7个数据点,用户可以随意添加或删除这些数据集 这些条线看起来分组很好,折线图显示了所有7个点 但是,当我向图表中添加更多的BarChartDataSet时,条形图离开了图表的右侧,折线图保持不变,这是我的一个图像序列,从一个LineChartDataSet开始,然后逐个添加BarChartDataSet,一些条形图的值为0,因此很难看到组,请查找底部的0标签 我怎样才能阻止
//get data and values from DataMOs in the activeFeeds
var lineChartDataSets = [LineChartDataSet]()
var barChartDataSets = [BarChartDataSet]()
for (key, dayValuesArray) in valuesByFeed {
var barChartDataEntries = [BarChartDataEntry]()
var lineChartDataEntries = [ChartDataEntry]()
var lineChartDataSet: LineChartDataSet!
var barChartDataSet: BarChartDataSet!
var dataEntry: ChartDataEntry
for (index, value) in (dayValuesArray?.enumerated())! {
//create line chart for Demand and Prod feeds
//create bar chart for every other feed
if key == "Demand" || key == "Prod"{
dataEntry = ChartDataEntry(x: Double(self.activeFeeds.count * index), y: Double(value)!)
lineChartDataEntries.append(dataEntry)
} else {
dataEntry = BarChartDataEntry(x: Double(self.activeFeeds.count * index), y: Double(value)!)
barChartDataEntries.append(dataEntry as! BarChartDataEntry)
}
}
//create line chart data set for Demand and Prod feeds
//create bar chart data set for every other feed
if key == "Demand" || key == "Prod"{
lineChartDataSet = LineChartDataSet(values: lineChartDataEntries, label: key)
lineChartDataSet.drawCirclesEnabled = false
} else {
barChartDataSet = BarChartDataSet(values: barChartDataEntries, label: key)
}
switch key {
case "Solar":
barChartDataSet.setColors(UIColor.orange.withAlphaComponent(1.0))
barChartDataSet.valueTextColor = UIColor.white
break
case "Wind":
barChartDataSet.setColors(UIColor.blue.withAlphaComponent(1.0))
barChartDataSet.valueTextColor = UIColor.white
break
case "Battery":
barChartDataSet.setColors(UIColor.green.withAlphaComponent(1.0))
barChartDataSet.valueTextColor = UIColor.white
break
case "Gen":
barChartDataSet.setColors(UIColor.red.withAlphaComponent(1.0))
barChartDataSet.valueTextColor = UIColor.white
break
case "Demand":
lineChartDataSet.setColors(UIColor.purple.withAlphaComponent(1.0))
lineChartDataSet.valueTextColor = UIColor.white
lineChartDataSet.drawFilledEnabled = true
lineChartDataSet.fillColor = UIColor.purple.withAlphaComponent(0.8)
break
case "Prod":
lineChartDataSet.setColors(UIColor.magenta.withAlphaComponent(1.0))
lineChartDataSet.valueTextColor = UIColor.white
lineChartDataSet.drawFilledEnabled = true
lineChartDataSet.fillColor = UIColor.magenta.withAlphaComponent(0.8)
break
default:
break
}
//append to correct data set array
if key == "Demand" || key == "Prod"{
lineChartDataSets.append(lineChartDataSet)
} else {
barChartDataSets.append(barChartDataSet)
}
}
//set chart data
let chartData = CombinedChartData()
chartData.barData = BarChartData(dataSets: barChartDataSets)
chartData.lineData = LineChartData(dataSets: lineChartDataSets)
let activeFeedsCount = self.activeFeeds.count
if activeFeedsCount > 0 {
self.combinedChartView.data = chartData
if chartData.barData.dataSetCount > 1 {
self.combinedChartView.barData?.groupBars(fromX: 0, groupSpace: 1.0, barSpace: 0.5)
self.combinedChartView.notifyDataSetChanged()
}
} else {
self.combinedChartView.data = CombinedChartData()
self.combinedChartView.noDataText = "No Feeds To Show"
}
我无法重现0标签的问题,但可以使用combinedChart.xAxis.axisMaximum确保您可以看到右侧的所有条形图
let activeFeeds = 6
func dataSet() {
combinedChart.isUserInteractionEnabled = true
combinedChart.scaleXEnabled = false
combinedChart.scaleYEnabled = false
combinedChart.dragEnabled = true
//combinedChart.xAxis.axisMinimum = 0.0
combinedChart.xAxis.axisMaximum = 100.0
//get data and values from DataMOs in the activeFeeds
var lineChartDataSets = [LineChartDataSet]()
var barChartDataSets = [BarChartDataSet]()
combinedChart.setVisibleXRange(minXRange: 0.0, maxXRange: 26.0)
let arr1 = [17000,16500,16800,16700,17900,17100,18000]
let arr2 = [17000,17500,16900,16800,17200,17105,17000]
let valuesByFeed = ["Solar":arr1, "Wind": arr2, "Battery": arr1, "Gen":arr1, "Demand":arr1, "Prod":arr1]
for (key, dayValuesArray) in valuesByFeed {
var barChartDataEntries = [BarChartDataEntry]()
var lineChartDataEntries = [ChartDataEntry]()
var lineChartDataSet: LineChartDataSet!
var barChartDataSet: BarChartDataSet!
var dataEntry: ChartDataEntry
for (index, value) in (dayValuesArray.enumerated()) {
//create line chart for Demand and Prod feeds
//create bar chart for every other feed
if key == "Demand" || key == "Prod"{
dataEntry = ChartDataEntry(x: Double(self.activeFeeds * index), y: Double(value))
lineChartDataEntries.append(dataEntry)
} else {
dataEntry = BarChartDataEntry(x: Double(self.activeFeeds * index), y: Double(value))
barChartDataEntries.append(dataEntry as! BarChartDataEntry)
}
}
//create line chart data set for Demand and Prod feeds
//create bar chart data set for every other feed
if key == "Demand" || key == "Prod"{
lineChartDataSet = LineChartDataSet(values: lineChartDataEntries, label: key)
lineChartDataSet.drawCirclesEnabled = false
} else {
barChartDataSet = BarChartDataSet(values: barChartDataEntries, label: key)
}
switch key {
case "Solar":
print("case solar")
barChartDataSet.setColors(UIColor.orange.withAlphaComponent(1.0))
barChartDataSet.valueTextColor = UIColor.white
break
case "Wind":
print("case wind")
barChartDataSet.setColors(UIColor.blue.withAlphaComponent(1.0))
barChartDataSet.valueTextColor = UIColor.white
break
case "Battery":
print("case battery")
barChartDataSet.setColors(UIColor.green.withAlphaComponent(1.0))
barChartDataSet.valueTextColor = UIColor.white
break
case "Gen":
print("case gen")
barChartDataSet.setColors(UIColor.red.withAlphaComponent(1.0))
barChartDataSet.valueTextColor = UIColor.white
break
case "Gen2":
print("case gen")
barChartDataSet.setColors(UIColor.red.withAlphaComponent(1.0))
barChartDataSet.valueTextColor = UIColor.white
break
case "Gen3":
print("case gen")
barChartDataSet.setColors(UIColor.red.withAlphaComponent(1.0))
barChartDataSet.valueTextColor = UIColor.white
break
case "Gen4":
print("case gen")
barChartDataSet.setColors(UIColor.red.withAlphaComponent(1.0))
barChartDataSet.valueTextColor = UIColor.white
break
case "Demand":
print("case demand")
lineChartDataSet.setColors(UIColor.purple.withAlphaComponent(1.0))
lineChartDataSet.valueTextColor = UIColor.white
lineChartDataSet.drawFilledEnabled = true
lineChartDataSet.fillColor = UIColor.purple.withAlphaComponent(0.8)
break
case "Prod":
print("case prod")
lineChartDataSet.setColors(UIColor.magenta.withAlphaComponent(1.0))
lineChartDataSet.valueTextColor = UIColor.white
lineChartDataSet.drawFilledEnabled = true
lineChartDataSet.fillColor = UIColor.magenta.withAlphaComponent(0.8)
break
default:
break
}
//append to correct data set array
if key == "Demand" || key == "Prod"{
lineChartDataSets.append(lineChartDataSet)
} else {
barChartDataSets.append(barChartDataSet)
}
}
//set chart data
let chartData = CombinedChartData()
print("bar count: \(barChartDataSets.count)")
print("line count: \(lineChartDataSets.count)")
chartData.barData = BarChartData(dataSets: barChartDataSets)
chartData.lineData = LineChartData(dataSets: lineChartDataSets)
let activeFeedsCount = self.activeFeeds
if activeFeedsCount > 0 {
self.combinedChart.data = chartData
if chartData.barData.dataSetCount > 1 {
self.combinedChart.barData?.groupBars(fromX: 0, groupSpace: 1.0, barSpace: 0.5)
self.combinedChart.notifyDataSetChanged()
}
} else {
self.combinedChart.data = CombinedChartData()
self.combinedChart.noDataText = "No Feeds To Show"
}
}
使用setVisibleXRange可以解决问题,请看我的回答:如果解决不了问题,你能分享一些代码让我重现问题吗?似乎不起作用,我添加了我正在使用的代码,它基本上是过去7天的数据点,将有7组4个条,2个折线图,每个都有7个数据点当我建议更改粒度时:正如您从上面的代码中看到的,我已经在尝试使用它,更改它的值没有任何作用。我将其与fitToScreen()结合使用,谢谢