I have a chart which I'm populating like this: Chart->AutoRepaint = false; for (many thousands of values) { lineseries->AddXY(x,y,"",clRed); } Chart->AutoRepaint = true; Chart->Repaint(); The problem is that the Repaint does not happen immediately. If I call Repaint(), and then immediatelly check th...

Awesome, that works perfectly. Thanks very much.

Hi all, I'm trying to use the TNearestTool to work out the time (x value) of the point (on a TLineSeries) closest to the mouse. When the user clicks a button, a nearest tool is created: TNearestTool *nearTool = new TNearestTool(TrendChart); TrendChart->Tools->Add(nearTool); nearTool->LinePen->Color ...

Worked it out - it appears to be specific to particular printers (although the vast majority that I tested (HP) didn't work). I was on the right track with my workaround - changing axis Grid->Color to clBlack fixes the problem...I just needed to do it on my custom horizontal and vertical axes.

Having trouble uploading files - here's the complete chunk of code that will demonstrate the problem. All that is required is a TChart object named TrendChart on a form, and put this in form's constructor: //Definitions double dblMin = 10; double dblMax = 30; double dblInterval = 1.0/24.0/20.0; //Ad...

The screenshot that I uploaded demonstrates the problem pretty clearly - if you set a TColorLineTool->Value property to a value that's outside of the vertical axis min/max, the ColorLine should not be visible...but it is. It appears in the whitespace above or below the chart grid area - this is what...

Hi guys, I have a small problem with the TColorLineTool. If I create a TColorLineTool and set the value to 20, but show a trend where the vertical range is between 11 and 19, the colorline appears outside of the chart area. Don't know if I'm explaining it very well - I've uploaded a screenshot using...

Thanks, that did the trick (although I had to add a 'fudge factor' in order to get it to show the entire values)

Hello, I'm experiencing problems with the left axis values whenever I resize my teechart windows. If the values being plotted are reasonably large (in the thousands), the left axis values get chopped off when I resize the window. My Chart->LeftMargin is currently set to 5, and the margin units are p...

Hello, I've got a problem where whenever I print a chart I don't get any grid lines. They're visible in the TChartPreviewer window, but they don't appear on the printout. I've tried changing the settings of the TChartPreviewer component - if I set cpoAsBitmap to true, then I do get grid lines...but ...

Hello,

Is there any way to turn on points for just a few values, rather than the whole series? I want a certain section of my chart to stand out. Or how about changing the line type for a particular section of points?

Cheers

Andrew