Steema Central

Posted: **Tue Nov 29, 2016 2:36 pm**

Hello
I have set up the following code.

	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 6267 times

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

: 100_items.png (34.95 KiB) Viewed 6264 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 ?

Posted: **Wed Nov 30, 2016 9:56 am**

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;

Posted: **Wed Nov 30, 2016 2:51 pm**

Thanks, this solution works

Steema Central

Incorrect bar width with TChartScrollBar

Incorrect bar width with TChartScrollBar

Re: Incorrect bar width with TChartScrollBar

Re: Incorrect bar width with TChartScrollBar