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Direct MessagesDate/Time: Tue, 07 May 2024 13:50:48 +0000
Horizontal time labels, vertical grid, and a bug
View Count: 1806
| [2017-05-14 19:14:21] |
| Merlin - Posts: 81 |
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1) I would like a way for the time labels on the horizontal scale to line up exactly with the vertical grid lines. Currently they are completely unrelated, which is confusing. Background info: Unless I'm missing something, Sierra currently gives me excellent, wonderful control of the vertical scale, but no control of the horizontal time scale at all. I use "number-of-trades-per-bar" intraday charts (aka "tick charts"). I set "Vertical Grid Lines" to display every n minutes. This is excellent! Although my charts are tick-based, the minute-based vertical grid lines tell me how quickly the market is moving. When the market's moving fast, the grid lines are far apart; when it slows down, the grid lines are closer together. It's a great, intuitive visual cue. I'd just like to be able to quickly glance down to the bottom of a vertical grid line and see the corresponding time! I think the simplest solution would be an option: "Align time scale with vertical grid". This would work for me. The more flexible solution would be a "Time Scale Increment" setting, analogous to "Scale Settings/Scale Increment" on the vertical scale. During slow periods, like night session, the vertical grid lines can be very close together. If a new time label on the horizontal scale would overlap the previous label, it should just be skipped. 2) There is a small but annoying bug in the vertical grid line logic. On a 22-tick NQ chart, set to show a vertical grid line every 1 minute, every once in a while a duplicate line appears - two vertical grid lines are displayed on adjacent bars that are only a few seconds apart. As far as I can tell, this only happens when the first bar starts on an exact minute boundary with .000 milliseconds. For example, with Vertical Grid Lines set to display every 1 minute, I see a line, correctly, when a bar paints at 9:33:00.000. But then another grid line appears, incorrectly, on the next bar at 9:33:01.016. Another case is 9:53:00.000 and 9:53:04.002. In every case I've checked, the first line shows at .000 milliseconds - the logic for the next bar is not recognizing that the line for that minute has already printed on the .000 bar. Here's an example, with lines at 10:24:00.000 and 10:24:00.022: http://www.sierrachart.com/image.php?Image=1494788824591.png (This image also demonstrates the random relationship between the vertical grid and the time labels.) 3) If I have unchecked the option "Include Seconds on Intraday Chart Timescal" (Advanced Settings 3 - and yes there's a typo on "Timescal"e :-) ), then I only want to see a time label for each new minute. Currently, on my fastest chart, I see a string of duplicate labels like: "9:30 9:30 9:30 9:30 9:30 9:31 9:31 ..." I'd rather just see: "9:30 ___(open space)_______ 9:31 _____ ..." I'm trying to simplify my charts as much as possible. (In my case, fixing #1 would automatically fix #3) Thanks, Merlin Date Time Of Last Edit: 2017-05-14 20:29:42
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| [2017-05-14 23:35:20] |
| Merlin - Posts: 81 |
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With regard to #2, I just remembered that the milliseconds value is not really milliseconds, but the trades counter. So it seems the problem happens when the first trade of the bar is also the first trade of the new minute, in the case of a 1-minute vertical grid. However, I've also found an example where this occurrence does not cause the double-grid-bar problem, so something subtler is going on.
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| [2017-05-15 01:57:45] |
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1. We will have to look at this later on. It is really quite difficult to accomplish this. 2, 3. These we can solve. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2018-06-13 16:11:39] |
| Steve - Posts: 16 |
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I am second to Merlin regarding point 1) "The more flexible solution would be a "Time Scale Increment" setting, analogous to "Scale Settings/Scale Increment" on the vertical scale." In the modern modern order flow/scalping/HFT times, we need similar options for "time scale" as you provided for the "price scale" and those are just fantastic. Timing and physical sizes/proportions and reference points in time are more and more important. |
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