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Addon to override chart autoscale logic?

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  • takacsj
    replied
    reach4thelasers,

    There is a charting software competitor whose one impressive feature for me is the ability to scale a chart manually. This is for adding geometric shapes to a chart that remain consistent, i.e. circles, squares, trendlines, pitchforks etc.

    Does your indicator do this? Thanks in advance!

    Leave a comment:


  • reach4thelasers
    replied
    I was able to implement this using an indicator using OnCalculateMaxMin using the average bar range as a constant factor relative to the total range of visible price action...

    Strong trends or highly volatile ranges will auto-scale to fill the screen and contained ranges will be constrained to the relative aspect-ratio of the visible price action.

    I've attached in case anyone wants to use it.
    Attached Files

    Leave a comment:


  • reach4thelasers
    started a topic Addon to override chart autoscale logic?

    Addon to override chart autoscale logic?

    Is it possible to override the chart autoscale logic?

    I'd like the autoscale to maintain the aspect ratio of the displayed price action. Ninjatrader's default autoscale logic is to stretch the visible price action to the whole window.

    However when prices are in a narrow range it results in a distorted view of things which is extremely hard to read. I would like to reprogram the autoscale logic so that if prices are in a letterbox-shaped range, that this shape is maintained.

    I've attached screenshots of how the autoscale looks now, and how I'd prefer it to look. I can work out the coding for the scaling but I'm just not sure how to override the existing autoscale logic, or hook it into the scrolling of the chart etc.

    thanks,

    Kevin.
    Attached Files

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