| //+------------------------------------------------------------------+
|
| //| Math_3D.mq5 |
|
| //| Copyright 2000-2025, MetaQuotes Ltd. |
|
| //| https://www.mql5.com |
|
| //+------------------------------------------------------------------+
|
| #include "Functions.mqh"
|
|
|
| #property optimization_chart_mode "3d,InpX,InpY"
|
|
|
| //--- input parameters
|
| sinput EnFunctionType InpFunction=Chomolungma;
|
| input double InpX =0.0;
|
| input double InpY =0.0;
|
| //--- a pointer to the mathematical function
|
| MathFunction ExtFunction;
|
| //+------------------------------------------------------------------+
|
| //| Expert initialization function |
|
| //+------------------------------------------------------------------+
|
| int OnInit()
|
| {
|
| //--- this EA is designed for optimization
|
| if(!MQLInfoInteger(MQL_OPTIMIZATION))
|
| {
|
| MessageBox("This EA is designed for 3D visualization of optimization results\r\n\r\nRun this EA in the Strategy Tester using the Math Calculations mode!",
|
| "EA warning", 0x00000030);
|
| return(INIT_FAILED);
|
| }
|
| //---
|
| return(INIT_SUCCEEDED);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| TesterInit function |
|
| //+------------------------------------------------------------------+
|
| int OnTesterInit()
|
| {
|
| //--- get a pointer to a mathematical function by its type
|
| ExtFunction=GetMathFunction(InpFunction);
|
| Print(__FUNCTION__, ": ExtFunction=", ExtFunction);
|
| //--- variables to get values during optimization
|
| double x_cur, x_start, x_stop, x_step;
|
| double y_cur, y_start, y_stop, y_step;
|
| bool x_enable, y_enable;
|
| //--- get parameter values
|
| ParameterGetRange("InpX", x_enable, x_cur, x_start, x_step, x_stop);
|
| ParameterGetRange("InpY", y_enable, y_cur, y_start, y_step, y_stop);
|
| PrintFormat("x=%G start=%G step=%G stop=%G", x_cur, x_start, x_step, x_stop);
|
| PrintFormat("y=%G start=%G step=%G stop=%G", y_cur, y_start, y_step, y_stop);
|
| PrintFormat("Function=%s", EnumToString(InpFunction));
|
| //--- check if parameters are selected
|
| if(!x_enable || !y_enable)
|
| {
|
| Print("Select both parameters InpX and InpY for optimization! Optimization stopped");
|
| return (INIT_PARAMETERS_INCORRECT);
|
| }
|
| //--- check input parameters
|
| if(x_step==0 || y_step==0)
|
| {
|
| Print("Specify non-zero value for x_step and y_step! Optimization stopped");
|
| return (INIT_PARAMETERS_INCORRECT);
|
| }
|
| //---
|
| return (INIT_SUCCEEDED);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Tester function |
|
| //+------------------------------------------------------------------+
|
| double OnTester()
|
| {
|
| //--- get a pointer to a mathematical function by its type
|
| ExtFunction=GetMathFunction(InpFunction);
|
| //--- calculate function result
|
| double value=ExtFunction(InpX, InpY);
|
| return(value);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| TesterDeinit function |
|
| //+------------------------------------------------------------------+
|
| void OnTesterDeinit()
|
| {
|
| //---
|
|
|
| }
|
| //+------------------------------------------------------------------+
|
