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  Average volume line on the bottom chart
Posted by dave on Dec-08-2022 08:45
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Hi,
I'm trying to draw the average volume line, but it's drawing it on the main chart, not the bottom (volume) chart.

I'm using the financesymbols.cs code as a starting point, and added the following code (found on the forums) for adding a volume line.

            // Add a volume indicator chart (75 pixels high) after the main chart, using
            // green/red/grey for up/down/flat days
            c.addVolIndicator(75, 0x99ff99, 0xff9999, 0x808080);

            ArrayMath am = new ArrayMath(volData);
            double maxVol = am.max();
            if (maxVol >= 1000000000)
                am.div(1000000000);
            else if (maxVol >= 1000000)
                am.div(1000000);
            else if (maxVol >= 1000)
                am.div(1000);


            //add 50 day volume average line
            double[] myMovingAvg = am.movAvg(50).result();
            Layer layer = c.addLineIndicator2(mainChart, myMovingAvg, 0xcc6600, "");
            layer.moveFront();
            layer.setUseYAxis2();

I understand what it's doing, I just don't know the API well enough to move it to the bottom.

Thanks!
example.png

  Re: Average volume line on the bottom chart
Posted by dave on Dec-08-2022 08:46
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(hit send too fast)

How do I move the average vol line to the bottom?

Thanks!

  Re: Average volume line on the bottom chart
Posted by dave on Dec-08-2022 21:49
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fyi..figured it out. I needed to add my indicator to the vol chart (didn't realize the addVol(..) method returned a chart)


            var volChart = c.addVolIndicator(75, 0x99ff99, 0xff9999, 0x808080);

            ArrayMath am = new ArrayMath(volData);
            double maxVol = am.max();
            if (maxVol >= 1000000000)
                am.div(1000000000);
            else if (maxVol >= 1000000)
                am.div(1000000);
            else if (maxVol >= 1000)
                am.div(1000);



            //add 50 day volume average line
            double[] myMovingAvg = am.movAvg(50).result();
            c.addLineIndicator2(volChart, myMovingAvg, 0xcc6600, "Vol(50)");