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Log scale is distorted

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  • kinderlich
    started a topic Log scale is distorted

    Log scale is distorted

    the log scale is not correct.

    if you put up say AMD (from free kinetic dataserver)

    if you measure a distance from 2.5 to 5 with a box which is a double, like so http://screencast.com/t/KLHVX3gle

    then if you move the box so that the bottom is level with 5 , the top should be a double as well, so, it should be 10, but... it actually is (under 9.5)

    http://screencast.com/t/U8ELtCO1D9Q


    this testing procedure works correctly on other charting platforms like freestockcharts.com so there is a scaling bug in your code.

  • NinjaTrader_Brett
    replied
    Hello,

    Thank you for your patience on this.

    I looked into this and the scale is actually correct and logarithmic.

    Your test however is invalid.

    The reason for this is that with drawing objects when drawn they are a set pixels in width on the canvas and thus a set size. The drawing object does not adjust for logarithmic scale. Because of this it is expected that you see this with a drawing object.

    -Brett

    Leave a comment:


  • NinjaTrader_RJ
    replied
    Hello Kinderlich,

    Thank you for your post.

    I will report this to my development team who is back in the office tomorrow. You should receive a reply back tomorrow as well.

    Thank you!

    Leave a comment:

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