Support Board
Date/Time: Wed, 27 Nov 2024 09:54:59 +0000
Post From: Trend Lines move, when scaling in or out.
| [2014-02-22 10:59:15] |
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We do not want users to start getting too many ideas from this thread, in regards to issues with chart drawings moving. In the case of Pitchforks, that kind of issue is documented here and what to do about it: https://www.sierrachart.com/index.php?l=doc/doc_Tools.html#Pitchfork (Refer to the section about Secondary Anchor Point) What this thread is about may or may not be related to your particular scenario. And also when you are drawing Chart drawing which ends in the fill space with variable timeframe bars, then you can definitely get movement for various reasons . All of this is already documented. In our testing, the particular function that extends a Ray drawing and keeps it stable, did not provide any benefit even though it was not being used. A program like think or swim is a completely different kind of program because it is built on a completely different graphics platform. Those guys have it very easy compared to us. All of the underlying details are handled already for them with the underlying graphics platform that they work with. We have to do all of this stuff manually and understand the math and the details behind it. And when we rely directly on the Windows GDI to clip a line to a window instead of using our own function, the very same line shifting occurs. So if you think we are not doing this well, the Windows GDI suffers the very same effect and there is a technical reason why this occurs that cannot be easily overcome. Anyway, we have the problem now resolved. However , this is only in regards to the particular issue raised here in the first post and no other. The issue had to do with the final clipping of the line to the chart region. This is now based upon the chart scale rather than the monitor pixel coordinates. Nevertheless, since the fact that a monitor is an integer coordinate system, there is a slight amount of shifting that does still occur when changing the scale that we observed. This does not occur with small-scale changes. It is typically only when expanding the price bars significantly using Interactive Scale Range. However, in our test scenario it is much more stable with the change made. And it is for this reason, that we insist, that other programs must have this effect even if you do not perceive it. It still is there, even if it is small. 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: 2014-02-22 23:34:59
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