Price Axis preferences
Printed From: BullCharts Forum
Category: BullCharts
Forum Name: BullCharts discussion
Forum Discription: General discussion about getting started with BullCharts and exploring its features.
URL: http://www.bullcharts.com.au/forum/forum_posts.asp?TID=175
Printed Date: 27 Apr 2025 at 12:07pm
Software Version: Web Wiz Forums 9.69 - http://www.webwizforums.com
Topic: Price Axis preferences
Posted By: Cobra
Subject: Price Axis preferences
Date Posted: 12 Mar 2005 at 2:10am
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Would it be possible to have some more options with regard to setting the price axis?. For eg,. be able to set the minimum scale increment in dollars eg 0.001, 0.01, .1?. It would be handy if the price increment could be adjusted and then have the option to 'snap to' the curser or crosshair. You could get really fancy and have the scale auto set depending on the range of the share price eg for shares under 10 cents, the scale would be 3 decimal places increment of 0.001 cents, for 10 to 50 cents 3 decimal places in increment of half cents, and over 50 cents 2 decimal places in increments of a cent. In other words, a price scale for ASX price ranges. Now if you could combine all the price scales on the one chart that would be ideal ------------- BullCharts version:3.4.1.28129 Windows XP SP2 |
. Is that the same as a log scale?? Starting at 0 to 10 cents in 0.001 increments, then 10 to 50 cents in 0.005 increments, then 50 cents upwards 0.01 increments.Replies:
Posted By: Tim Allen
Date Posted: 14 Mar 2005 at 12:36pm
A semi-log scale (double-click on the price axis, click Semi-Log, click OK) is very much like that, only smoother. For example, in semi-log mode, if I view the entirety of BHP's history then BullCharts shows the price range from $3 to $4 with the same detail as the price-range from $15 to $20. However, when you zoom in, BullChart's auto-scaling ensures that you always get the most detailed view that still shows all the data in a given price range, so semi-log mode doesn't really help you. |
Posted By: Cobra
Date Posted: 14 Mar 2005 at 5:14pm
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Yes, i think I confused the issue mentioning the word 'log'. What I was after was a minimum 'snap to' prices scale. The ASX have scales for prices depending on what range the price is in, as detailed above. With Bullcharts I find that I'm wanting to find an exact price as per the ASX ranges but Bullcharts gives me a much 'smoother' scale than I need. For eg, a share is trading at 40.5 cents. The tradeable tick value in this price range is half a cent, yet BC will display values to a much greater precision, which is not really required (displaying a non-tradable price eg 40.123 cents). It is hard lining up a crosshair to find the price unless you zoom in all the time. If it was possible to set the price scale, either at a fixed value or ideally to auto scale according to the ASX price ranges, and then be able to snap to these points via the crosshair would make it a lot easier to read an exact price. ------------- BullCharts version:3.4.1.28129 Windows XP SP2 |
Posted By: Peter
Date Posted: 15 Mar 2005 at 9:33am
| This has been a tricky one because there are many situations when only tradeable prices are required, and there are many situations where greater precision is required. Would you find it convenient if I assigned a hotkey to snap to the nearest tradeable price, similar to the hotkeys for snapping to O,H,L,C, etc? |
Posted By: Cobra
Date Posted: 15 Mar 2005 at 1:33pm
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I can't say that I can think of a situation where you would need to have precision greater than the tradeable price. Maybe some other users can provide a reason(s)?. Ideally, it would be a set & forget preference type thing, not really something I would need to press multiple hot-key combinations. I'm not sure how other charting programs do it, but at a minimum I would think that BC had the option of selecting the scale 'ticks', or auto scale 'ticking' (as detailed above with the scale changing when in a price band) depending on the price. If it's at all programmatically possible, it would be really good to have multiple price scaling (scales) within the single Y axis, but still retain the relative proportions eg 0 to 10 cents in 0.001 increments would be the same measurement (distance on the y scale?)? as 50 to 60 cents in 1 cent increments, it would just be more 'compacted'. Maybe it's something the other chart programs don't have yet? Or, maybe a simpler solution would be to get the highest traded price on the viewable chart, determine what the tradeable ASX price tick is for that price, then scale (and option snap-to) to that?. ------------- BullCharts version:3.4.1.28129 Windows XP SP2 |
Posted By: Peter
Date Posted: 15 Mar 2005 at 4:16pm
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One example where precision is required: A 10 day moving average on
close can take on values at 1dp finer resolution than the close itself.
If one wanted to draw a trendline from trough to trough on this moving
average, then the drawing precision would be required. But your points are valid, and your ideas are good. Will see what we can do.  |
Posted By: Cobra
Date Posted: 28 Mar 2005 at 9:24pm
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Another problem with the Y scale, this time when displaying a volume pane, is that the volume total displayed in the Y scale panel is not displayed fully. Or, it is being truncated. Either way, it is difficult to see the last period volume. ------------- BullCharts version:3.4.1.28129 Windows XP SP2 |
Posted By: Peter
Date Posted: 29 Mar 2005 at 9:40am
| You can right-click the volume pane and select "pane properties". Then tick "show pane title bar". Will see if we can do something about the volume axis-tag for the next version. |
Posted By: Cobra
Date Posted: 04 Apr 2005 at 11:41am
FYI, The ASX have changed the price steps as follows -
------------- BullCharts version:3.4.1.28129 Windows XP SP2 |
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