Login Page - Create Account

Home >> Support Board

Support Board

Date/Time: Thu, 25 Apr 2024 22:40:28 +0000

How to Post a Message for Support

Post From: *IMPORTANT* Notice: Custom Study Improperly Altering Time Scale of Chart

[2020-12-04 20:38:22]
[Go To First Post]
Ackin - Posts: 1865
If you are the developer of a custom study, never change the elements of this array:

Nobody changes it. The statement above is incorrect.

This error occurs after updating the SC when the user does not recompile the library (or when use a third-party library that is not recompiled to a newer version). This is related to the change in SCDateTime functionality described in the 2195 notes.
https://www.sierrachart.com/index.php?page=doc/Whats_New.php#SCVer2195




Try this code below recompiled in version 2192 and open Sierrachart 2204. You will get a result with zeros on the axis. (attached file)


SCSFExport scsf_example(SCStudyInterfaceRef sc)
{
  if (sc.SetDefaults)
  {
    sc.GraphName = "Example";
    sc.GraphRegion = 1;
    sc.AutoLoop = 0;

    return;
  }

    for (int BarIndex = sc.UpdateStartIndex; BarIndex < sc.ArraySize; BarIndex++)
    {
      if (BarIndex > 0)
      {
        SCDateTime PreviousTradingDayStartDateTimeOfBar = sc.GetTradingDayStartDateTimeOfBar(sc.BaseDateTimeIn[BarIndex - 1]);
        SCDateTime TradingDayStartDateTimeOfBar = sc.GetTradingDayStartDateTimeOfBar(sc.BaseDateTimeIn[BarIndex]);
      }
    }
    
}





This is not to say that you are doing something wrong. You warned in advance that libraries should be recompiled.

Just my opinion:
If the content of a feature changes significantly in this way, it should be a "forced update," not just a "recommended update."
Date Time Of Last Edit: 2020-12-04 23:11:08
imageLib_v2192_in_SC_v2204.png / V - Attached On 2020-12-04 20:36:37 UTC - Size: 36.94 KB - 411 views