Incorrect bar width with TChartScrollBar

[Eic]

Hello
I have set up the following code.

Code: Select all

	TChart * Chart1 = new TChart(this);
	TChartScrollBar *scrollBar = NULL;
	Chart1->Parent = this;
	Chart1->Align = alClient;

	Chart1->AddSeries(new THorizBarSeries(Chart1))->FillSampleValues(20);
	Chart1->LeftAxis->Minimum = 0;
	Chart1->LeftAxis->Maximum = 5;
	Chart1->LeftAxis->Automatic = false;

	scrollBar = new TChartScrollBar(this);
	scrollBar->Parent = this;
	scrollBar->Align = alRight;
	scrollBar->Kind = sbVertical;
	scrollBar->Width = 17;
	scrollBar->Min = 0;
	scrollBar->Max = 100;
	scrollBar->Chart = Chart1;
	scrollBar->RecalcPosition();

When my series is composed of 5 values (FillSampleValues (5)), I get this...

5_items.png (25.94 KiB) Viewed 6325 times

When my series is composed of 100 values (FillSampleValues (100)), I get this...

100_items.png (34.95 KiB) Viewed 6322 times

Since Chart1-> LeftAxis-> Maximum is always 5, I would like that in both cases, my bars have the same width.

In my example, with 100 values, the bars are very small whereas there is ample room to display them. He pretends to put all the bars on a single page.

What should be done ?

[Yeray]

Hello,

Try setting your bar series AutoBarSize property to true:

Code: Select all

  THorizBarSeries *horizBar1 = new THorizBarSeries(Chart1);
  Chart1->AddSeries(horizBar1);
  horizBar1->FillSampleValues(20);
  horizBar1->AutoBarSize=true;

[Eic]

Thanks, this solution works