translatesAutoresizingMaskIntoConstraints with Charts LineChartView

Question

我在osx应用中使用来自Charts的LineChartView，我将其添加到我的视图中：

let lineChartView = LineChartView(frame: NSRect(x: 0, y: 0, width: 300, height: 200))
let ys1 = Array(1..<10).map { x in return sin(Double(x) / 2.0 / 3.141 * 1.5) }
let ys2 = Array(1..<10).map { x in return cos(Double(x) / 2.0 / 3.141) }

let yse1 = ys1.enumerate().map { x, y in return ChartDataEntry(x: Double(x), y: y) }
let yse2 = ys2.enumerate().map { x, y in return ChartDataEntry(x: Double(x), y: y) }

let data = LineChartData()
let ds1 = LineChartDataSet(values: yse1, label: "Hello")
ds1.colors = [NSUIColor.redColor()]
data.addDataSet(ds1)

let ds2 = LineChartDataSet(values: yse2, label: "World")
ds2.colors = [NSUIColor.blueColor()]
data.addDataSet(ds2)
lineChartView.data = data

lineChartView.gridBackgroundColor = NSUIColor.whiteColor()

lineChartView.descriptionText = "Linechart Demo"
lineChartView.animate(xAxisDuration: 2.0, yAxisDuration: 2.0, easingOption: .Linear)
lineChartView.translatesAutoresizingMaskIntoConstraints = true
self.view.addSubview(lineChartView)
let horizontalConstraint = NSLayoutConstraint(item: inspectorView, attribute: NSLayoutAttribute.Left, relatedBy: NSLayoutRelation.Equal, toItem: view, attribute: NSLayoutAttribute.Left, multiplier: 1, constant: 20)
self.view.addConstraint(horizontalConstraint)

let verticalConstraint = NSLayoutConstraint(item: inspectorView, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.GreaterThanOrEqual, toItem: titleLabel, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 10)
self.view.addConstraint(verticalConstraint)
self.view.addConstraint(NSLayoutConstraint(item: inspectorView, attribute: NSLayoutAttribute.Bottom, relatedBy: NSLayoutRelation.GreaterThanOrEqual, toItem: self.view, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 10))

每当lineChartView.translatesAutoresizingMaskIntoConstraints为假时，就不会绘制图表。如果我将其设置为true，则绘制图表，但运行时表示它无法满足所有约束。

我也对NSButton按预期工作的标准.translatesAutoresizingMaskIntoConstraints = false执行相同操作

为什么它不适用于LineChartView以及需要更改的内容？

UPDATE：正如评论中指出的那样：添加高度和宽度限制解决了问题