How to Get the Last Bar's Pixel Location

[Kabua]

Hi,

I need to constrain an anchor to not go past the last visible bar on the chart. For example, if I have a chart that has a Right Side Margin of say 350 pixels. How do I prevent the anchor from being dropped/moved beyond the last visible bar?

I can find the right-most bar by using chartsBars.ToIndex but how do I compare the pixel location of ToIndex with ChartAnchor dataPoint?

[NinjaTrader_Kate]

Hello Kabua,

Thank you for your post.

You could get the index of the last visible bar with ChartBars.ToIndex, yes. You can then get the chart-canvas coordinate of that bar using GetXByBarIndex:

https://ninjatrader.com/support/helpGuides/nt8/getxbybarindex.htm

Once you've got the application pixels, you can convert them to device pixels using ConvertToHorizontalPixels:

https://ninjatrader.com/support/helpGuides/nt8/converttohorizontalpixels.htm

Please let us know if we may be of further assistance to you.

[Kabua]

Thank you. I had the GetXByBarIndex but I couldn't figure out the ConvertToPixel function.

For anyone looks for the same here's my code:

                var point = dataPoint.GetPoint(chartControl, chartPanel, chartScale);

                var lastX = chartControl.GetXByBarIndex(GetAttachedToChartBars(), chartControl.PrimaryBars.ToIndex - 1);
                var lastDevicePixelX = ChartingExtensions.ConvertToHorizontalPixels(lastX, chartControl.PresentationSource);

                if (point.X > lastDevicePixelX)
                {
                    // Do something...
                }