如何让Delphi中的TChart显示全部标签？系列名称截断求助

I see you've already dug into the TChart docs, tweaked parameters like LabelsSeparation, LabelsGridIgnoresLabelSize, LabelsAngle, and LabelStyle, plus hit up Google, but still can't figure out why your first series name is getting truncated—even with plenty of empty space on the chart. Let's walk through some targeted fixes based on your code and the chart behavior you're seeing.

First, here's the code snippet you shared for reference:

series4.add(round(strToreal(Cells[13,1])),'Запланированный ЛС',CPW);
series5.add(round(strToreal(Cells[14,1])),'Распределенный вручную ЛС',CMW);
series6.add(round(strToreal(Cells[15,1])),'Задачи',c);

(Your chart shows the first series name "Запланированный ЛС" cut off prematurely)

Let's try these actionable steps:

• Force a fixed label width for the axis
  TChart's automatic label width calculation sometimes has hardcoded limits, even if visual space is available. Override this by setting an explicit width for the left axis labels:

  Chart1.Axes.Left.LabelsWidth := 220; // Adjust this value to fit your longest label
  

  Since your labels are in Russian, TChart might miscalculate character widths—this fixed value should bypass that issue.

• Adjust label alignment
  If your labels are left-aligned, they might be getting clipped by the chart's edge. Switch to right-aligned labels to keep them within the available space:

  Chart1.Axes.Left.LabelAlign := laRight;
  

• Trim excess margins or reposition the legend
  Sometimes the chart's default margins (especially the left margin) or a left-positioned legend can eat into label space. Try shrinking the left margin or moving the legend to the top/bottom:

  Chart1.Margins.Left := 10; // Reduce default left margin
  Chart1.Legend.Alignment := laBottom; // Move legend to bottom to free up left space
  

• Use a custom label drawing event
  If all else fails, bypass TChart's automatic label handling entirely by using the OnGetAxisLabel event to manually set the full label text:

  procedure TYourForm.Chart1GetAxisLabel(Sender: TChartAxis; Series: TChartSeries;
    ValueIndex: Integer; var LabelText: string);
  begin
    if Sender = Chart1.Axes.Left then
    begin
      case ValueIndex of
        0: LabelText := 'Запланированный ЛС';
        1: LabelText := 'Распределенный вручную ЛС';
        2: LabelText := 'Задачи';
      end;
    end;
  end;
  

  This ensures the full label is drawn without any automatic truncation.

The most likely culprit here is TChart's incorrect width calculation for non-Latin characters (your Russian labels), so starting with the fixed LabelsWidth is probably your best bet.

内容的提问来源于stack exchange，提问作者Paul