Support Board
Date/Time: Tue, 25 Feb 2025 11:36:11 +0000
Post From: How to use DRAWSTYLE_POINT_VARIABLE_SIZE? Getting strange painting and chart scale.
| [2021-04-07 20:19:12] |
| User719512 - Posts: 299 |
|
I have looked at the docs at https://www.sierrachart.com/index.php?page=doc/ChartStudies.html#DrawStyle_PointVariableSize, and getting unexpected results. Is there an example for DRAWSTYLE_POINT_VARIABLE_SIZE, or does anyone have suggestions on how I am using this DrawStyle incorrectly? Example code below. I expected a variable sized point at the sc.Close/Last price. What I am seeing is points at F.US.EPM21 prices like 4072.200, 4072.400 and not 4072.25, 4072.50, etc. SCSFExport scsf_OSC_TestVariablePoint(SCStudyInterfaceRef sc) { SCSubgraphRef Subgraph_VariableVolume = sc.Subgraph[0]; if (sc.SetDefaults) { sc.GraphName = "Variable Points"; sc.StudyDescription = "Variable Sized Points Test"; // sc Control variables sc.AutoLoop = 1; sc.DisplayAsMainPriceGraph = 1; Subgraph_VariableVolume.Name = "Variable Volume Points"; Subgraph_VariableVolume.DrawStyle = DRAWSTYLE_POINT_VARIABLE_SIZE; Subgraph_VariableVolume.PrimaryColor = RGB(128, 128, 128); return; } // for testing, just generate a random number for the Size. // just take a remainder of time for size 1-5. int size = sc.BaseDateTimeIn[sc.Index].GetSecond() % 5 + 1; Subgraph_VariableVolume[sc.Index] = sc.Close[sc.Index]; Subgraph_VariableVolume.Data[sc.Index] = sc.Close[sc.Index]; Subgraph_VariableVolume.Arrays[0][sc.Index] = size; } |