Question

当我水平滚动缩放的ms图表时，我看到一个丑陋的图表区域闪烁（右边框），这是由于其宽度的不必要的变化（这是由于水平滚动期间图表的可变缩放）。任何想法如何改进？

代码示例：

DateTime zeroTime = new DateTime(1, 1, 1, 0, 0, 0);
int k = 0;
chart1.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
chart1.Dock = DockStyle.Fill;
chart1.BackColor = Color.Salmon;
this.chart1.ChartAreas["ChartArea1"].CursorX.IsUserEnabled = true;
this.chart1.ChartAreas["ChartArea1"].CursorY.IsUserEnabled = true;
this.chart1.ChartAreas["ChartArea1"].CursorX.IsUserSelectionEnabled = true;
this.chart1.ChartAreas["ChartArea1"].CursorY.IsUserSelectionEnabled = true;
this.chart1.ChartAreas["ChartArea1"].AxisX.ScaleView.Zoomable = true;
this.chart1.ChartAreas["ChartArea1"].AxisY.ScaleView.Zoomable = true;
this.chart1.ChartAreas["ChartArea1"].AxisX.ScrollBar.IsPositionedInside = true;
this.chart1.ChartAreas["ChartArea1"].AxisY.ScrollBar.IsPositionedInside = true;
this.chart1.ChartAreas["ChartArea1"].AxisX.ScaleView.SmallScrollMinSizeType =DateTimeIntervalType.Seconds;
this.chart1.ChartAreas["ChartArea1"].AxisX.ScaleView.SmallScrollSizeType = DateTimeIntervalType.Seconds;
chart1.ChartAreas["ChartArea1"].CursorY.Interval = 0.1;
chart1.ChartAreas["ChartArea1"].CursorX.Interval = 5.0;
chart1.ChartAreas["ChartArea1"].AxisX.LabelStyle.Format = "HH:mm:ss";
chart1.ChartAreas["ChartArea1"].CursorX.IntervalType = System.Windows.Forms.DataVisualization.Charting.DateTimeIntervalType.Seconds;
for (int i = 0; i < 600; i++) 
{if (i < 200 ){k=i/10;} else if(i<400){k=20;}else{k=(600-i)/10;}; chart1.Series[0].Points.AddXY(zeroTime.AddSeconds(i * 5), 0 - k);}

Answer 1

图表区域的InnerPlotPosition属性可能会影响图表的大小调整。此处的默认设置是InnerPlotPosition.Auto设置为true，这会导致宽度更改。

切换到手动模式可以停止图表宽度变化：

this.chart1.ChartAreas["ChartArea1"].InnerPlotPosition.Auto = false;
// optional:
this.chart1.ChartAreas["ChartArea1"].InnerPlotPosition.X = 0; // all values are percentage
this.chart1.ChartAreas["ChartArea1"].InnerPlotPosition.Y = 0;
this.chart1.ChartAreas["ChartArea1"].InnerPlotPosition.Height = 100; 
this.chart1.ChartAreas["ChartArea1"].InnerPlotPosition.Width = 100;

mschart水平滚动导致不需要的图表区域宽度变化

1 个答案: