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Direct MessagesDate/Time: Tue, 30 Apr 2024 10:43:52 +0000
Post From: Problem with Ray and Parallel Ray on Log Scale
| [2018-09-08 23:05:51] |
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After some recent update lines/rays stopped being displayed at all if the logarithmic scale is active. We do see this and we were not aware of this. We are resolving this now.As is, SierraChart is fundamentally broken when trying to draw extended lines on a logarithmic scale. This is not true with how this is designed. And you very well know it. We are now aware of not being able to right-click on an extended line on a logarithmic scale and perform actions on it at some points, and that will be resolved. We had thought this was not the case but we checked and it is the case and we do apologize for the delay with attending to that. What we need to do is draw each portion of the line between chart bars as a separate segment on a logarithmic scale so there will be a curved line. That is something we are working on. Currently when a line is extended, the extended endpoint is going to map to a specific value on the vertical scale and a specific bar. That is the proper way to do it. I think SC has lost a lot of users to Tradingview due to lack of some simple features like this one. We do not really care and we do not think this is the case anyway. We will fix the problem with lines not appearing. And as far as extending a line on a logarithmic scale, it is done properly if the line is straight, despite what you think. But really the only true proper way to do this is to draw the line as different segments and have it be a curved line. The simple fact is is that on a logarithmic scale, the concept of a straight line is fundamentally flawed to begin with. That is the core problem. The lines are currently extended properly and will *never* change and we do not agree with anyone who differs on that. There has to be a standard way in which a line is extended to extend to proper endpoint values based on Date-Times and the actual vertical axis price scale. We did a very thorough analysis of this today and we are 100% certain that the way it is done now is correct. There must be consistency with chart drawings between different types of scales, linear or logarithmic, and the chart bars and study values. We will never engage in faulty extension methods which apparently trading view is using. If you want to use substandard software, Trading view by your own admission, you are welcome to leave Sierra Chart. That is perfectly fine with us. The only true way to draw a line on a logarithmic scale is to draw it bar by bar and have it be curved. Think of a chart graph which is linear and has a line on it and then you change to a logarithmic scale. The only way to accurately represent that line as it was before is for it to be a curved line. For consistency therefore, being that the coordinates of a line use the standard linear chart values, when extending a line, these values are used for the extension using a standard linear equation, and then there is the final transformation to the logarithmic scale during drawing. All this makes complete sense. It cannot be done any differently. Update: We realize why the lines are not drawn on a logarithmic scale, it was because of incomplete development (Still in progress) to be able to draw curved lines on a logarithmic scale to represent proper intersection with the price bars and ultimately give you what you want which is the ultimate perfection. This is going to be corrected in version 1801. But the curved line support will not be supported until a later release. Here is an example of a properly drawn line on a Logarithmic scale: http://www.sierrachart.com/image.php?Image=1536486926607.png At every chart bar, the line is where it is supposed to be. And that is what users expect. Same line without logarithmic scaling: http://www.sierrachart.com/image.php?Image=1536486960979.png 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 Date Time Of Last Edit: 2018-09-28 03:47:26
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