/// <example>
/// <code lang="CS">
/// using System;
/// using Genetibase.MathX.Core;
///
/// namespace Genetibase.MathX.Core.Tests
/// {
/// public class ParametricSurfaceSample
/// {
/// [STAThread]
/// static void Main(string[] args)
/// {
/// // create function
/// ParametricSurface function = new ParametricSurface("u+v","u-v","u*v");
///
/// // calculate function _Function;
/// for (int u = 0; u < 100; u++)
/// for (int v = 0; v < 100; v++)
/// {
/// Console.WriteLine("f({0},{1}) = ({2},{3},{4})",
/// u,v,function.ValueAt(u,v).X,function.ValueAt(u,v).Y,
/// function.ValueAt(u,v).Z);
/// }
///
/// }
/// }
/// }
/// </code>
/// </example>
public ParametricSurface(string expressionX, string expressionY, string expressionZ)
{
if (expressionX == null)
{
throw new ArgumentNullException("expressionX");
}
if (expressionY == null)
{
throw new ArgumentNullException("expressionY");
}
if (expressionZ == null)
{
throw new ArgumentNullException("expressionZ");
}
_expressionTreeX = new ExpressionTree(expressionX);
_expressionTreeY = new ExpressionTree(expressionY);
_expressionTreeZ = new ExpressionTree(expressionZ);
if (_expressionTreeX.Variables.Length > 2)
{
throw new ArgumentException("expressionX");
}
if (_expressionTreeY.Variables.Length > 2)
{
throw new ArgumentException("expressionY");
}
if (_expressionTreeZ.Variables.Length > 2)
{
throw new ArgumentException("expressionZ");
}
_expressionX = expressionX;
_expressionY = expressionY;
_expressionZ = expressionZ;
_expression = string.Format("{0};{1};{2}",
_expressionX, _expressionY, _expressionZ);
ExpressionCompiler compiler =
new ExpressionCompiler(new ExpressionTree[] {
_expressionTreeX,
_expressionTreeY,
_expressionTreeZ
});
_functionX = FunctionFactory.CreateRealFunction(_expressionTreeX);
_functionY = FunctionFactory.CreateRealFunction(_expressionTreeY);
_functionZ = FunctionFactory.CreateRealFunction(_expressionTreeZ);
_function = (ParametricSurfaceDelegate)compiler.CreateDelegate(typeof(ParametricSurfaceDelegate),
"return new Point3D({0},{1},{2});");
base._delegate = _function;
base._definitionType = DefinitionType.Analytic;
}
/// <example>
/// <code lang="CS">
/// using System;
/// using Genetibase.MathX.Core;
///
/// namespace Genetibase.MathX.Core.Tests
/// {
/// public class Parameter3DFunctionSample
/// {
/// [STAThread]
/// static void Main(string[] args)
/// {
/// // create function
/// Parameter3DFunction function = new Parameter3DFunction("10*sin(t)","10*cos(t)", "10*tan(t)");
///
/// // calculate function _Function;
/// for (int i = 0; i < 100; i++)
/// {
/// Console.WriteLine("f({0}) = ({1},{2},{3})",i,function.ValueAt(i).X,function.ValueAt(i).Y, function.ValueAt(i).Z);
/// }
///
/// }
/// }
/// }
/// </code>
/// </example>
/// <summary><para>Initializes a function that defined by expression.</para></summary>
public Parameter3DFunction(string expressionX, string expressionY, string expressionZ)
{
if (expressionX == null)
{
throw new ArgumentNullException("expressionX");
}
if (expressionY == null)
{
throw new ArgumentNullException("expressionY");
}
if (expressionZ == null)
{
throw new ArgumentNullException("expressionZ");
}
_expressionTreeX = new ExpressionTree(expressionX);
_expressionTreeY = new ExpressionTree(expressionY);
_expressionTreeZ = new ExpressionTree(expressionZ);
if (_expressionTreeX.Variables.Length > 1)
{
throw new ArgumentException("expressionX");
}
if (_expressionTreeY.Variables.Length > 1)
{
throw new ArgumentException("expressionY");
}
if (_expressionTreeZ.Variables.Length > 1)
{
throw new ArgumentException("expressionZ");
}
_expressionX = expressionX;
_expressionY = expressionY;
_expressionZ = expressionZ;
_expression = string.Format("{0};{1};{2}",
_expressionX, _expressionY, _expressionZ);
_functionX = FunctionFactory.CreateRealFunction(_expressionTreeX);
_functionY = FunctionFactory.CreateRealFunction(_expressionTreeY);
_functionZ = FunctionFactory.CreateRealFunction(_expressionTreeZ);
_function = DelegateFactory.CreateParameter3DFunctionDelegate(
_functionX.ValueAt, _functionY.ValueAt, _functionZ.ValueAt);
base._delegate = _function;
base._definitionType = DefinitionType.Analytic;
}
