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Post From: ACSIL study

[2025-06-08 23:57:51]
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User936417 - Posts: 16
Here is the code:

#include "sierrachart.h"

SCDLLName("Line Tool Projections")

#ifndef DRAWING_LINE
#define DRAWING_LINE 8
#endif

SCSFExport scsf_LineToolProjections(SCStudyInterfaceRef sc)
{
SCInputRef Level1 = sc.Input[0];
SCInputRef Level2 = sc.Input[1];
SCInputRef Level3 = sc.Input[2];
SCInputRef ShowLevelValues = sc.Input[3];

// Subgraphs for projected level outputs
SCSubgraphRef Level1Up = sc.Subgraph[0];
SCSubgraphRef Level2Up = sc.Subgraph[1];
SCSubgraphRef Level3Up = sc.Subgraph[2];
SCSubgraphRef Level1Down = sc.Subgraph[3];
SCSubgraphRef Level2Down = sc.Subgraph[4];
SCSubgraphRef Level3Down = sc.Subgraph[5];

if (sc.SetDefaults)
{
sc.GraphName = "Line Tool Projections";
sc.AutoLoop = 0;

Level1.Name = "Projection Level 1 (points)";
Level1.SetInt(9);

Level2.Name = "Projection Level 2 (points)";
Level2.SetInt(13);

Level3.Name = "Projection Level 3 (points)";
Level3.SetInt(19);

ShowLevelValues.Name = "Show Level Value Labels";
ShowLevelValues.SetYesNo(1);

// Subgraph settings
Level1Up.Name = "Level 1 Up";
Level1Up.DrawStyle = DRAWSTYLE_LINE;
Level1Up.PrimaryColor = RGB(0, 255, 0);

Level2Up.Name = "Level 2 Up";
Level2Up.DrawStyle = DRAWSTYLE_LINE;
Level2Up.PrimaryColor = RGB(0, 200, 0);

Level3Up.Name = "Level 3 Up";
Level3Up.DrawStyle = DRAWSTYLE_LINE;
Level3Up.PrimaryColor = RGB(0, 150, 0);

Level1Down.Name = "Level 1 Down";
Level1Down.DrawStyle = DRAWSTYLE_LINE;
Level1Down.PrimaryColor = RGB(255, 0, 0);

Level2Down.Name = "Level 2 Down";
Level2Down.DrawStyle = DRAWSTYLE_LINE;
Level2Down.PrimaryColor = RGB(200, 0, 0);

Level3Down.Name = "Level 3 Down";
Level3Down.DrawStyle = DRAWSTYLE_LINE;
Level3Down.PrimaryColor = RGB(150, 0, 0);

return;
}

if (sc.UpdateStartIndex != sc.ArraySize - 1)
return;

const int ToolType = static_cast<int>(DRAWING_LINE);
const int DrawingCount = sc.GetACSDrawingsCount(sc.ChartNumber, ToolType);

if (DrawingCount == 0)
{
sc.AddMessageToLog("LineToolProjections: No line drawings found.", 0);
return;
}

for (int i = DrawingCount - 1; i >= 0; --i)
{
s_UseTool Tool;
if (!sc.GetACSDrawingByIndex(sc.ChartNumber, i, Tool, ToolType))
continue;

if (Tool.DrawingType != static_cast<DrawingTypeEnum>(DRAWING_LINE))
continue;

float High = max(Tool.BeginValue, Tool.EndValue);
float Low = min(Tool.BeginValue, Tool.EndValue);

float Level1Val = static_cast<float>(Level1.GetInt());
float Level2Val = static_cast<float>(Level2.GetInt());
float Level3Val = static_cast<float>(Level3.GetInt());

float Levels[6] = {
High + Level1Val,
High + Level2Val,
High + Level3Val,
Low - Level1Val,
Low - Level2Val,
Low - Level3Val
};

// Plot subgraph values
Level1Up[sc.Index] = Levels[0];
Level2Up[sc.Index] = Levels[1];
Level3Up[sc.Index] = Levels[2];
Level1Down[sc.Index] = Levels[3];
Level2Down[sc.Index] = Levels[4];
Level3Down[sc.Index] = Levels[5];

// Draw horizontal projected lines
for (int j = 0; j < 6; ++j)
{
s_UseTool LineTool;
LineTool.Clear();
LineTool.ChartNumber = sc.ChartNumber;
LineTool.DrawingType = static_cast<DrawingTypeEnum>(DRAWING_LINE);
LineTool.BeginValue = Levels[j];
LineTool.BeginDateTime = sc.BaseDateTimeIn[sc.ArraySize - 1].GetAsDouble();
LineTool.Color = RGB(0, 255, 0);
LineTool.AddMethod = UTAM_ADD_ALWAYS;

if (ShowLevelValues.GetYesNo())
{
char Label[32];
snprintf(Label, sizeof(Label), "%.2f", Levels[j]);
LineTool.Text = Label;
}

sc.UseTool(LineTool);
}

break; // Only process most recent line
}
}