// Method to display the variables used in the operations
public void ShowVars()
{
// Displays the values of the variables
var p1 = new Point(10, 5);
var p2 = new Point(15, 40);
var v1 = new System.Windows.Vector(20, 30);
var v2 = new System.Windows.Vector(45, 70);
var m1 = new Matrix(40, 50, 60, 70, 80, 90);
double s1 = 75;
txtPoint1.Text = p1.ToString();
txtPoint2.Text = p2.ToString();
txtVector1.Text = v1.ToString();
txtVector2.Text = v2.ToString();
txtMatrix1.Text = m1.ToString();
txtScalar1.Text = s1.ToString(CultureInfo.InvariantCulture);
}
// This method performs the Point operations
public void PerformOperation(object sender, RoutedEventArgs e)
{
RadioButton li = (sender as RadioButton);
// Strings used to display the results
String syntaxString, resultType, operationString;
// The local variables point1, point2, vector2, etc are defined in each
// case block for readability reasons. Each variable is contained within
// the scope of each case statement.
switch (li.Name)
{ //begin switch
case "rb1":
{
// Converts a String to a Point using a PointConverter
// Returns a Point.
PointConverter pConverter = new PointConverter();
Point pointResult = new Point();
string string1 = "10,20";
pointResult = (Point)pConverter.ConvertFromString(string1);
// pointResult is equal to (10, 20)
// Displaying Results
syntaxString = "pointResult = (Point)pConverter1.ConvertFromString(string1);";
resultType = "Point";
operationString = "Converting a String to a Point";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb2":
{
// Converts a String to a Vector using a VectorConverter
// Returns a Vector.
VectorConverter vConverter = new VectorConverter();
Vector vectorResult = new Vector();
string string1 = "10,20";
vectorResult = (Vector)vConverter.ConvertFromString(string1);
// vectorResult is equal to (10, 20)
// Displaying Results
syntaxString = "vectorResult = (Vector)vConverter.ConvertFromString(string1);";
resultType = "Vector";
operationString = "Converting a String into a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb3":
{
// Converts a String to a Matrix using a MatrixConverter
// Returns a Matrix.
MatrixConverter mConverter = new MatrixConverter();
Matrix matrixResult = new Matrix();
string string2 = "10,20,30,40,50,60";
matrixResult = (Matrix)mConverter.ConvertFromString(string2);
// matrixResult is equal to (10, 20, 30, 40, 50, 60)
// Displaying Results
syntaxString = "matrixResult = (Vector)mConverter.ConvertFromString(string2);";
resultType = "Matrix";
operationString = "Converting a String into a Matrix";
ShowResults(matrixResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb4":
{
// Converts a String to a Point3D using a Point3DConverter
// Returns a Point3D.
Point3DConverter p3DConverter = new Point3DConverter();
Point3D point3DResult = new Point3D();
string string3 = "10,20,30";
point3DResult = (Point3D)p3DConverter.ConvertFromString(string3);
// point3DResult is equal to (10, 20, 30)
// Displaying Results
syntaxString = "point3DResult = (Point3D)p3DConverter.ConvertFromString(string3);";
resultType = "Point3D";
operationString = "Converting a String into a Point3D";
ShowResults(point3DResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb5":
{
// Converts a String to a Vector3D using a Vector3DConverter
// Returns a Vector3D.
Vector3DConverter v3DConverter = new Vector3DConverter();
Vector3D vector3DResult = new Vector3D();
string string3 = "10,20,30";
vector3DResult = (Vector3D)v3DConverter.ConvertFromString(string3);
// vector3DResult is equal to (10, 20, 30)
// Displaying Results
syntaxString = "vector3DResult = (Vector3D)v3DConverter.ConvertFromString(string3);";
resultType = "Vector3D";
operationString = "Converting a String into a Vector3D";
ShowResults(vector3DResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb6":
{
// Converts a String to a Size3D using a Size3DConverter
// Returns a Size3D.
Size3DConverter s3DConverter = new Size3DConverter();
Size3D size3DResult = new Size3D();
string string3 = "10,20,30";
size3DResult = (Size3D)s3DConverter.ConvertFromString(string3);
// size3DResult is equal to (10, 20, 30)
// Displaying Results
syntaxString = "size3DResult = (Size3D)v3DConverter.ConvertFromString(string3);";
resultType = "Size3D";
operationString = "Converting a String into a Size3D";
ShowResults(size3DResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb7":
{
// Converts a String to a Point4D using a Point4DConverter
// Returns a Point4D.
Point4DConverter p4DConverter = new Point4DConverter();
Point4D point4DResult = new Point4D();
string string4 = "10,20,30,40";
point4DResult = (Point4D)p4DConverter.ConvertFromString(string4);
// point4DResult is equal to (10, 20, 30)
// Displaying Results
syntaxString = "point4DResult = (Point4D)v3DConverter.ConvertFromString(string3);";
resultType = "Point4D";
operationString = "Converting a String into a Point4D";
ShowResults(point4DResult.ToString(), syntaxString, resultType, operationString);
break;
}
default:
break;
} //end switch
}
// Displays the variables
public void ShowVars()
{
// Displays the values of the variables
Point p1 = new Point(15, 25);
Vector v1 = new Vector(15, 25);
Matrix m1 = new Matrix(5, 10, 15, 20, 25, 30);
Matrix m2 = new Matrix(2, 4, 6, 8, 10, 12);
Double s1 = 75;
// Sets the Text in the text objects. These are
// defined in the MainWindow.xaml file
txtPoint1.Text = p1.ToString();
txtVector1.Text = v1.ToString();
txtMatrix1.Text = m1.ToString();
txtMatrix2.Text = m2.ToString();
txtScalar1.Text = s1.ToString();
}
// Displays the variables
public void ShowVars()
{
// Displays the values of the variables
var p1 = new Point(15, 25);
var v1 = new Vector(15, 25);
var m1 = new System.Windows.Media.Matrix(5, 10, 15, 20, 25, 30);
var m2 = new System.Windows.Media.Matrix(2, 4, 6, 8, 10, 12);
double s1 = 75;
// Sets the Text in the text objects. These are
// defined in the Windows1.xaml file
txtPoint1.Text = p1.ToString();
txtVector1.Text = v1.ToString();
txtMatrix1.Text = m1.ToString();
txtMatrix2.Text = m2.ToString();
txtScalar1.Text = s1.ToString(CultureInfo.InvariantCulture);
}
public void ToStringTest ()
{
Vector v = new Vector (4, 5);
Assert.AreEqual ("4,5", v.ToString());
}
public void PerformOperation(object sender, RoutedEventArgs e)
{
var li = sender as RadioButton;
// Strings used to display results
string syntaxString, resultType, operationString;
switch (li?.Name)
{
//begin switch
case "rb1":
{
// Translates a Point by a Vector using the overloaded + operator.
var point1 = new Point(10, 5);
var vector1 = new System.Windows.Vector(20, 30);
var pointResult = point1 + vector1;
// pointResult is equal to (-10,-25)
// Displaying Results
syntaxString = "pointResult = point1 + vector1;";
resultType = "Point";
operationString = "Translating a Point by a Vector";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb2":
{
// Adds a Vector to a Vector using the overloaded + operator.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
// vectorResult is equal to (65,100)
var vectorResult = vector1 + vector2;
// Displaying Results
syntaxString = "vectorResult = vector1 + vector2;";
resultType = "Vector";
operationString = "Adding a Vector to a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb3":
{
// Adds a Vector to a Vector using the static Add method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var vectorResult = System.Windows.Vector.Add(vector1, vector2);
// vectorResult is equal to (65,100)
// Displaying Results
syntaxString = "vectorResult = Vector.Add(vector1, vector2);";
resultType = "Vector";
operationString = "Adding a Vector to a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb4":
{
// Translates a Point by a Vector using the static Add method.
var vector1 = new System.Windows.Vector(20, 30);
var point1 = new Point(10, 5);
var pointResult = System.Windows.Vector.Add(vector1, point1);
// vectorResult is equal to (30,35)
// Displaying Results
syntaxString = "pointResult = Vector.Add(vector1, point1);";
resultType = "Point";
operationString = "Translating a Point by a Vector";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb5":
{
// Subtracts a Vector from a Vector using the overloaded - operator.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var vectorResult = vector1 - vector2;
// vector Result is equal to (-25, -40)
// Displaying Results
syntaxString = "vectorResult = vector1 - vector2;";
resultType = "Vector";
operationString = "Subtracting a Vector from a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb6":
{
// Subtracts a Vector from a Vector using the static Subtract method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var vectorResult = System.Windows.Vector.Subtract(vector1, vector2);
// vector Result is equal to (-25, -40)
// Displaying Results
syntaxString = "Vector.Subtract(vector1, vector2);";
resultType = "Vector";
operationString = "Subtracting a Vector from a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb7":
{
// Multiplies a Vector by a Scalar using the overloaded * operator.
var vector1 = new System.Windows.Vector(20, 30);
double scalar1 = 75;
var vectorResult = vector1 * scalar1;
// vectorResult is equal to (1500,2250)
// Displaying Results
syntaxString = "vectorResult = vector1 * scalar1;";
resultType = "Vector";
operationString = "Multiplies a Vector by a Scalar";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb8":
{
// Multiplies a Scalar by a Vector using the overloaded * operator.
var vector1 = new System.Windows.Vector(20, 30);
double scalar1 = 75;
var vectorResult = scalar1 * vector1;
// vectorResult is equal to (1500,2250)
// Displaying Results
syntaxString = "vectorResult = scalar1 * vector1;";
resultType = "Vector";
operationString = "Multiplies a Scalar by a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb9":
{
// Multiplies a Vector by a Vector using the overloaded * operator.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var doubleResult = vector1 * vector2;
// doubleResult is equal to 3000
// Displaying Results
syntaxString = "doubleResult = vector1 * vector2;";
resultType = "Double";
operationString = "Multiplies a Vector by a Vector";
ShowResults(doubleResult.ToString(CultureInfo.InvariantCulture), syntaxString, resultType,
operationString);
break;
}
case "rb10":
{
// Multiplies a Vector by a Matrix using the overloaded * operator.
var vector1 = new System.Windows.Vector(20, 30);
var matrix1 = new Matrix(40, 50, 60, 70, 80, 90);
var vectorResult = vector1 * matrix1;
// vector Result is equal to (2600,3100)
// Displaying Results
syntaxString = "vectorResult = vector1 * matrix1;";
resultType = "Vector";
operationString = "Multiplies a Vector by a Matrix";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb11":
{
// Multiplies a Vector by a Scalar using the static Multiply method.
var vector1 = new System.Windows.Vector(20, 30);
double scalar1 = 75;
var vectorResult = System.Windows.Vector.Multiply(vector1, scalar1);
// vectorResult is equal to (1500,2250)
// Displaying Results
syntaxString = "vectorResult = Vector.Multiply(vector1, scalar1);";
resultType = "Vector";
operationString = "Multiplies a Vector by a Scalar";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb12":
{
// Multiplies a Scalar by a Vector using the static Multiply method.
var vector1 = new System.Windows.Vector(20, 30);
double scalar1 = 75;
var vectorResult = System.Windows.Vector.Multiply(scalar1, vector1);
// vectorResult is equal to (1500,2250)
// Displaying Results
syntaxString = "vectorResult = Vector.Multiply(scalar1, vector1);";
resultType = "Vector";
operationString = "Multiplies a Scalar by a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb13":
{
// Multiplies a Vector by a Vector using the static Multiply method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var doubleResult = System.Windows.Vector.Multiply(vector1, vector2);
// doubleResult is equal to 3000
// Displaying Results
syntaxString = "DoubleResult = Vector.Multiply(vector1,vector2);";
resultType = "Double";
operationString = "Multiplies a Vector by a Vector";
ShowResults(doubleResult.ToString(CultureInfo.InvariantCulture), syntaxString, resultType,
operationString);
break;
}
case "rb14":
{
// Multiplies a Vector by a Matrix using the static Multiply method.
var vector1 = new System.Windows.Vector(20, 30);
var matrix1 = new Matrix(40, 50, 60, 70, 80, 90);
var vectorResult = System.Windows.Vector.Multiply(vector1, matrix1);
// vector Result is equal to (2600,3100)
// Displaying Results
syntaxString = "vectorResult = Vector.Multiply(vector1,matrix1);";
resultType = "Vector";
operationString = "Multiplies a Vector by a Matrix";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb15":
{
// Divides a Vector by a Scalar using the overloaded / operator.
var vector1 = new System.Windows.Vector(20, 30);
double scalar1 = 75;
var vectorResult = vector1 / scalar1;
// vectorResult is approximately equal to (0.26667,0.4)
// Displaying Results
syntaxString = "vectorResult = vector1 / scalar1;";
resultType = "Vector";
operationString = "Dividing a Vector by a Scalar";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb16":
{
// Divides a Vector by a Double using the static Divide method.
var vector1 = new System.Windows.Vector(20, 30);
double scalar1 = 75;
var vectorResult = System.Windows.Vector.Divide(vector1, scalar1);
// vectorResult is approximately equal to (0.26667,0.4)
// Displaying Results
syntaxString = "vectorResult = Vector.Divide(vector1, scalar1);";
resultType = "Vector";
operationString = "Dividing a Vector by a Scalar";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb17":
{
// Gets the hashcode of a Vector structure
var vector1 = new System.Windows.Vector(20, 30);
var vectorHashCode = vector1.GetHashCode();
// Displaying Results
syntaxString = "vectorHashCode = vector1.GetHashCode();";
resultType = "int";
operationString = "Getting the hashcode of a Vector";
ShowResults(vectorHashCode.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb18":
{
// Gets the length of a Vector.
var vector1 = new System.Windows.Vector(20, 30);
var length = vector1.Length;
// length is approximately equal to 36.0555
// Displaying Results
syntaxString = "length = vector1.Length();";
resultType = "Double";
operationString = "Getting the length of a Vector";
ShowResults(length.ToString(CultureInfo.InvariantCulture), syntaxString, resultType, operationString);
break;
}
case "rb19":
{
// Gets the square of the length of a Vector.
var vector1 = new System.Windows.Vector(20, 30);
var lengthSq = vector1.LengthSquared;
// lengthSq is equal to 1300
// Displaying Results
syntaxString = "lengthSq = vector1.LengthSquared;";
resultType = "Double";
operationString = "Getting the length square of a Vector";
ShowResults(lengthSq.ToString(CultureInfo.InvariantCulture), syntaxString, resultType,
operationString);
break;
}
case "rb20":
{
// Normalizes a Vector using the Normalize method.
var vector1 = new System.Windows.Vector(20, 30);
vector1.Normalize();
// vector1 is approximately equal to (0.5547,0.8321)
// Displaying Results
syntaxString = "vector1.Normalize();";
resultType = "Vector";
operationString = "Normalizing a Vector";
ShowResults(vector1.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb21":
{
// Calculates the angle between two Vectors using the static AngleBetween method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var angleBetween = System.Windows.Vector.AngleBetween(vector1, vector2);
// angleBetween is approximately equal to 0.9548
// Displaying Results
syntaxString = "angleBetween = Vector.AngleBetween(vector1, vector2);";
resultType = "Double";
operationString = "Calculating the angle between two Vectors";
ShowResults(angleBetween.ToString(CultureInfo.InvariantCulture), syntaxString, resultType,
operationString);
break;
}
case "rb22":
{
// Calculates the cross product of two Vectors using the static CrossProduct method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var crossProduct = System.Windows.Vector.CrossProduct(vector1, vector2);
// crossProduct is equal to 50
// Displaying Results
syntaxString = "crossProduct = Vector.CrossProduct(vector1,vector2);";
resultType = "Double";
operationString = "Calculating the crossproduct of two Vectors";
ShowResults(crossProduct.ToString(CultureInfo.InvariantCulture), syntaxString, resultType,
operationString);
break;
}
case "rb23":
{
// Calculates the determinant of two Vectors using the static Determinant method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var determinant = System.Windows.Vector.Determinant(vector1, vector2);
// determinant is equal to 50
// Displaying Results
syntaxString = "determinant = Vector.Determinant(vector1, vector2);";
resultType = "Double";
operationString = "Calculating the determinant of two Vectors";
ShowResults(determinant.ToString(CultureInfo.InvariantCulture), syntaxString, resultType,
operationString);
break;
}
case "rb24":
{
// Checks if two Vectors are equal using the overloaded equality operator.
// Declaring vecto1 and initializing x,y values
var vector1 = new System.Windows.Vector(20, 30);
// Declaring vector2 without initializing x,y values
var vector2 = new System.Windows.Vector
{
X = 45,
Y = 70
};
// Boolean to hold the result of the comparison
// assigning values to vector2
// Comparing Vectors for equality
var areEqual = (vector1 == vector2);
// areEqual is False
// Displaying Results
syntaxString = "areEqual = (vector1 == vector2);";
resultType = "Boolean";
operationString = "Checking if two vectors are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb25":
{
// Checks if two Vectors are equal using the static Equals method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var areEqual = System.Windows.Vector.Equals(vector1, vector2);
// areEqual is False
// Displaying Results
syntaxString = "areEqual = Vector.Equals(vector1, vector2);";
resultType = "Boolean";
operationString = "Checking if two vectors are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb26":
{
// Compares an Object and a Vector for equality using the non-static Equals method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var areEqual = vector1.Equals(vector2);
// areEqual is False
// Displaying Results
syntaxString = "areEqual = vector1.Equals(vector2);";
resultType = "Boolean";
operationString = "Checking if two vectors are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb27":
{
// Converts a string representation of a vector into a Vector structure
var vectorResult = System.Windows.Vector.Parse("1,3");
// vectorResult is equal to (1,3)
// Displaying Results
syntaxString = "vectorResult = Vector.Parse(\"1,3\");";
resultType = "Vector";
operationString = "Converting a string into a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb28":
{
// Checks if two Vectors are not equal using the overloaded inequality operator.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var areNotEqual = (vector1 != vector2);
// areNotEqual is True
// Displaying Results
syntaxString = "areNotEqual = (vector1 != vector2);";
resultType = "Boolean";
operationString = "Checking if two points are not equal";
ShowResults(areNotEqual.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb29":
{
// Negates a Vector using the Negate method.
var vector1 = new System.Windows.Vector(20, 30);
vector1.Negate();
// vector1 is equal to (-20, -30)
// Displaying Results
syntaxString = "vector1.Negate();";
resultType = "void";
operationString = "Negating a vector";
ShowResults(vector1.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb30":
{
// Negates a Vector using the overloaded unary negation operator.
var vector1 = new System.Windows.Vector(20, 30);
var vectorResult = -vector1;
// vectorResult is equal to (-20, -30)
// Displaying Results
syntaxString = "vectorResult = -vector1;";
resultType = "Vector";
operationString = "Negating a vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb31":
{
// Gets a String representation of a Vector structure
var vector1 = new System.Windows.Vector(20, 30);
var vectorString = vector1.ToString();
// vectorString is equal to 10,5
// Displaying Results
syntaxString = "vectorString = vector1.ToString();";
resultType = "String";
operationString = "Getting the string representation of a Vector";
ShowResults(vectorString, syntaxString, resultType, operationString);
break;
}
case "rb32":
{
// Explicitly converts a Vector structure into a Size structure
// Returns a Size.
var vector1 = new System.Windows.Vector(20, 30);
var size1 = (Size)vector1;
// size1 has a width of 20 and a height of 30
// Displaying Results
syntaxString = "size1 = (Size)vector1;";
resultType = "Size";
operationString = "Expliciting casting a Vector into a Size";
ShowResults(size1.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb33":
{
// Explicitly converts a Vector structure into a Point structure
// Returns a Point.
var vector1 = new System.Windows.Vector(20, 30);
var point1 = (Point)vector1;
// point1 is equal to (20, 30)
// Displaying Results
syntaxString = "point1 = (Point)vector1;";
resultType = "Point";
operationString = "Expliciting casting a Vector into a Point";
ShowResults(point1.ToString(), syntaxString, resultType, operationString);
break;
}
// task example. this case statement is not referenced from the list of radio buttons
case "rb40":
{
// adds two vectors using Add and +
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
vector1 = vector1 + vector2;
// vector1 is now equal to (65, 100)
vector1 = System.Windows.Vector.Add(vector1, vector2);
// vector1 is now equal to (110, 170)
// Displaying Results
syntaxString = "vectorResult = Vector.Negate(vector1);";
resultType = "Vector";
operationString = "Negating a vector";
ShowResults(vector1.ToString(), syntaxString, resultType, operationString);
break;
}
} // end switch
}
// Method to display the variables used in the operations
public void ShowVars()
{
// Displays the values of the variables
var p1 = new Point(10, 5);
var p2 = new Point(15, 40);
var v1 = new System.Windows.Vector(20, 30);
var v2 = new System.Windows.Vector(45, 70);
var m1 = new Matrix(40, 50, 60, 70, 80, 90);
double s1 = 75;
txtPoint1.Text = p1.ToString();
txtPoint2.Text = p2.ToString();
txtVector1.Text = v1.ToString();
txtVector2.Text = v2.ToString();
txtMatrix1.Text = m1.ToString();
txtScalar1.Text = s1.ToString(CultureInfo.InvariantCulture);
}
private void DrawVector(Vector<double> vector, EllipseCreator creator)
{
var coords = TransformCoordinates(vector);
var toolTip = vector.ToString();
DrawEllipse(coords,toolTip,creator);
}
public void PerformOperation(object sender, RoutedEventArgs e)
{
var li = sender as RadioButton;
// Strings used to display results
string syntaxString, resultType, operationString;
switch (li?.Name)
{
//begin switch
case "rb1":
{
// Translates a Point by a Vector using the overloaded + operator.
var point1 = new Point(10, 5);
var vector1 = new System.Windows.Vector(20, 30);
var pointResult = point1 + vector1;
// pointResult is equal to (-10,-25)
// Displaying Results
syntaxString = "pointResult = point1 + vector1;";
resultType = "Point";
operationString = "Translating a Point by a Vector";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb2":
{
// Adds a Vector to a Vector using the overloaded + operator.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
// vectorResult is equal to (65,100)
var vectorResult = vector1 + vector2;
// Displaying Results
syntaxString = "vectorResult = vector1 + vector2;";
resultType = "Vector";
operationString = "Adding a Vector to a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb3":
{
// Adds a Vector to a Vector using the static Add method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var vectorResult = System.Windows.Vector.Add(vector1, vector2);
// vectorResult is equal to (65,100)
// Displaying Results
syntaxString = "vectorResult = Vector.Add(vector1, vector2);";
resultType = "Vector";
operationString = "Adding a Vector to a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb4":
{
// Translates a Point by a Vector using the static Add method.
var vector1 = new System.Windows.Vector(20, 30);
var point1 = new Point(10, 5);
var pointResult = System.Windows.Vector.Add(vector1, point1);
// vectorResult is equal to (30,35)
// Displaying Results
syntaxString = "pointResult = Vector.Add(vector1, point1);";
resultType = "Point";
operationString = "Translating a Point by a Vector";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb5":
{
// Subtracts a Vector from a Vector using the overloaded - operator.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var vectorResult = vector1 - vector2;
// vector Result is equal to (-25, -40)
// Displaying Results
syntaxString = "vectorResult = vector1 - vector2;";
resultType = "Vector";
operationString = "Subtracting a Vector from a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb6":
{
// Subtracts a Vector from a Vector using the static Subtract method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var vectorResult = System.Windows.Vector.Subtract(vector1, vector2);
// vector Result is equal to (-25, -40)
// Displaying Results
syntaxString = "Vector.Subtract(vector1, vector2);";
resultType = "Vector";
operationString = "Subtracting a Vector from a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb7":
{
// Multiplies a Vector by a Scalar using the overloaded * operator.
var vector1 = new System.Windows.Vector(20, 30);
double scalar1 = 75;
var vectorResult = vector1*scalar1;
// vectorResult is equal to (1500,2250)
// Displaying Results
syntaxString = "vectorResult = vector1 * scalar1;";
resultType = "Vector";
operationString = "Multiplies a Vector by a Scalar";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb8":
{
// Multiplies a Scalar by a Vector using the overloaded * operator.
var vector1 = new System.Windows.Vector(20, 30);
double scalar1 = 75;
var vectorResult = scalar1*vector1;
// vectorResult is equal to (1500,2250)
// Displaying Results
syntaxString = "vectorResult = scalar1 * vector1;";
resultType = "Vector";
operationString = "Multiplies a Scalar by a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb9":
{
// Multiplies a Vector by a Vector using the overloaded * operator.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var doubleResult = vector1*vector2;
// doubleResult is equal to 3000
// Displaying Results
syntaxString = "doubleResult = vector1 * vector2;";
resultType = "Double";
operationString = "Multiplies a Vector by a Vector";
ShowResults(doubleResult.ToString(CultureInfo.InvariantCulture), syntaxString, resultType,
operationString);
break;
}
case "rb10":
{
// Multiplies a Vector by a Matrix using the overloaded * operator.
var vector1 = new System.Windows.Vector(20, 30);
var matrix1 = new Matrix(40, 50, 60, 70, 80, 90);
var vectorResult = vector1*matrix1;
// vector Result is equal to (2600,3100)
// Displaying Results
syntaxString = "vectorResult = vector1 * matrix1;";
resultType = "Vector";
operationString = "Multiplies a Vector by a Matrix";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb11":
{
// Multiplies a Vector by a Scalar using the static Multiply method.
var vector1 = new System.Windows.Vector(20, 30);
double scalar1 = 75;
var vectorResult = System.Windows.Vector.Multiply(vector1, scalar1);
// vectorResult is equal to (1500,2250)
// Displaying Results
syntaxString = "vectorResult = Vector.Multiply(vector1, scalar1);";
resultType = "Vector";
operationString = "Multiplies a Vector by a Scalar";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb12":
{
// Multiplies a Scalar by a Vector using the static Multiply method.
var vector1 = new System.Windows.Vector(20, 30);
double scalar1 = 75;
var vectorResult = System.Windows.Vector.Multiply(scalar1, vector1);
// vectorResult is equal to (1500,2250)
// Displaying Results
syntaxString = "vectorResult = Vector.Multiply(scalar1, vector1);";
resultType = "Vector";
operationString = "Multiplies a Scalar by a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb13":
{
// Multiplies a Vector by a Vector using the static Multiply method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var doubleResult = System.Windows.Vector.Multiply(vector1, vector2);
// doubleResult is equal to 3000
// Displaying Results
syntaxString = "DoubleResult = Vector.Multiply(vector1,vector2);";
resultType = "Double";
operationString = "Multiplies a Vector by a Vector";
ShowResults(doubleResult.ToString(CultureInfo.InvariantCulture), syntaxString, resultType,
operationString);
break;
}
case "rb14":
{
// Multiplies a Vector by a Matrix using the static Multiply method.
var vector1 = new System.Windows.Vector(20, 30);
var matrix1 = new Matrix(40, 50, 60, 70, 80, 90);
var vectorResult = System.Windows.Vector.Multiply(vector1, matrix1);
// vector Result is equal to (2600,3100)
// Displaying Results
syntaxString = "vectorResult = Vector.Multiply(vector1,matrix1);";
resultType = "Vector";
operationString = "Multiplies a Vector by a Matrix";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb15":
{
// Divides a Vector by a Scalar using the overloaded / operator.
var vector1 = new System.Windows.Vector(20, 30);
double scalar1 = 75;
var vectorResult = vector1/scalar1;
// vectorResult is approximately equal to (0.26667,0.4)
// Displaying Results
syntaxString = "vectorResult = vector1 / scalar1;";
resultType = "Vector";
operationString = "Dividing a Vector by a Scalar";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb16":
{
// Divides a Vector by a Double using the static Divide method.
var vector1 = new System.Windows.Vector(20, 30);
double scalar1 = 75;
var vectorResult = System.Windows.Vector.Divide(vector1, scalar1);
// vectorResult is approximately equal to (0.26667,0.4)
// Displaying Results
syntaxString = "vectorResult = Vector.Divide(vector1, scalar1);";
resultType = "Vector";
operationString = "Dividing a Vector by a Scalar";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb17":
{
// Gets the hashcode of a Vector structure
var vector1 = new System.Windows.Vector(20, 30);
var vectorHashCode = vector1.GetHashCode();
// Displaying Results
syntaxString = "vectorHashCode = vector1.GetHashCode();";
resultType = "int";
operationString = "Getting the hashcode of a Vector";
ShowResults(vectorHashCode.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb18":
{
// Gets the length of a Vector.
var vector1 = new System.Windows.Vector(20, 30);
var length = vector1.Length;
// length is approximately equal to 36.0555
// Displaying Results
syntaxString = "length = vector1.Length();";
resultType = "Double";
operationString = "Getting the length of a Vector";
ShowResults(length.ToString(CultureInfo.InvariantCulture), syntaxString, resultType, operationString);
break;
}
case "rb19":
{
// Gets the square of the length of a Vector.
var vector1 = new System.Windows.Vector(20, 30);
var lengthSq = vector1.LengthSquared;
// lengthSq is equal to 1300
// Displaying Results
syntaxString = "lengthSq = vector1.LengthSquared;";
resultType = "Double";
operationString = "Getting the length square of a Vector";
ShowResults(lengthSq.ToString(CultureInfo.InvariantCulture), syntaxString, resultType,
operationString);
break;
}
case "rb20":
{
// Normalizes a Vector using the Normalize method.
var vector1 = new System.Windows.Vector(20, 30);
vector1.Normalize();
// vector1 is approximately equal to (0.5547,0.8321)
// Displaying Results
syntaxString = "vector1.Normalize();";
resultType = "Vector";
operationString = "Normalizing a Vector";
ShowResults(vector1.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb21":
{
// Calculates the angle between two Vectors using the static AngleBetween method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var angleBetween = System.Windows.Vector.AngleBetween(vector1, vector2);
// angleBetween is approximately equal to 0.9548
// Displaying Results
syntaxString = "angleBetween = Vector.AngleBetween(vector1, vector2);";
resultType = "Double";
operationString = "Calculating the angle between two Vectors";
ShowResults(angleBetween.ToString(CultureInfo.InvariantCulture), syntaxString, resultType,
operationString);
break;
}
case "rb22":
{
// Calculates the cross product of two Vectors using the static CrossProduct method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var crossProduct = System.Windows.Vector.CrossProduct(vector1, vector2);
// crossProduct is equal to 50
// Displaying Results
syntaxString = "crossProduct = Vector.CrossProduct(vector1,vector2);";
resultType = "Double";
operationString = "Calculating the crossproduct of two Vectors";
ShowResults(crossProduct.ToString(CultureInfo.InvariantCulture), syntaxString, resultType,
operationString);
break;
}
case "rb23":
{
// Calculates the determinant of two Vectors using the static Determinant method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var determinant = System.Windows.Vector.Determinant(vector1, vector2);
// determinant is equal to 50
// Displaying Results
syntaxString = "determinant = Vector.Determinant(vector1, vector2);";
resultType = "Double";
operationString = "Calculating the determinant of two Vectors";
ShowResults(determinant.ToString(CultureInfo.InvariantCulture), syntaxString, resultType,
operationString);
break;
}
case "rb24":
{
// Checks if two Vectors are equal using the overloaded equality operator.
// Declaring vecto1 and initializing x,y values
var vector1 = new System.Windows.Vector(20, 30);
// Declaring vector2 without initializing x,y values
var vector2 = new System.Windows.Vector
{
X = 45,
Y = 70
};
// Boolean to hold the result of the comparison
// assigning values to vector2
// Comparing Vectors for equality
var areEqual = (vector1 == vector2);
// areEqual is False
// Displaying Results
syntaxString = "areEqual = (vector1 == vector2);";
resultType = "Boolean";
operationString = "Checking if two vectors are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb25":
{
// Checks if two Vectors are equal using the static Equals method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var areEqual = System.Windows.Vector.Equals(vector1, vector2);
// areEqual is False
// Displaying Results
syntaxString = "areEqual = Vector.Equals(vector1, vector2);";
resultType = "Boolean";
operationString = "Checking if two vectors are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb26":
{
// Compares an Object and a Vector for equality using the non-static Equals method.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var areEqual = vector1.Equals(vector2);
// areEqual is False
// Displaying Results
syntaxString = "areEqual = vector1.Equals(vector2);";
resultType = "Boolean";
operationString = "Checking if two vectors are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb27":
{
// Converts a string representation of a vector into a Vector structure
var vectorResult = System.Windows.Vector.Parse("1,3");
// vectorResult is equal to (1,3)
// Displaying Results
syntaxString = "vectorResult = Vector.Parse(\"1,3\");";
resultType = "Vector";
operationString = "Converting a string into a Vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb28":
{
// Checks if two Vectors are not equal using the overloaded inequality operator.
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
var areNotEqual = (vector1 != vector2);
// areNotEqual is True
// Displaying Results
syntaxString = "areNotEqual = (vector1 != vector2);";
resultType = "Boolean";
operationString = "Checking if two points are not equal";
ShowResults(areNotEqual.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb29":
{
// Negates a Vector using the Negate method.
var vector1 = new System.Windows.Vector(20, 30);
vector1.Negate();
// vector1 is equal to (-20, -30)
// Displaying Results
syntaxString = "vector1.Negate();";
resultType = "void";
operationString = "Negating a vector";
ShowResults(vector1.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb30":
{
// Negates a Vector using the overloaded unary negation operator.
var vector1 = new System.Windows.Vector(20, 30);
var vectorResult = -vector1;
// vectorResult is equal to (-20, -30)
// Displaying Results
syntaxString = "vectorResult = -vector1;";
resultType = "Vector";
operationString = "Negating a vector";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb31":
{
// Gets a String representation of a Vector structure
var vector1 = new System.Windows.Vector(20, 30);
var vectorString = vector1.ToString();
// vectorString is equal to 10,5
// Displaying Results
syntaxString = "vectorString = vector1.ToString();";
resultType = "String";
operationString = "Getting the string representation of a Vector";
ShowResults(vectorString, syntaxString, resultType, operationString);
break;
}
case "rb32":
{
// Explicitly converts a Vector structure into a Size structure
// Returns a Size.
var vector1 = new System.Windows.Vector(20, 30);
var size1 = (Size) vector1;
// size1 has a width of 20 and a height of 30
// Displaying Results
syntaxString = "size1 = (Size)vector1;";
resultType = "Size";
operationString = "Expliciting casting a Vector into a Size";
ShowResults(size1.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb33":
{
// Explicitly converts a Vector structure into a Point structure
// Returns a Point.
var vector1 = new System.Windows.Vector(20, 30);
var point1 = (Point) vector1;
// point1 is equal to (20, 30)
// Displaying Results
syntaxString = "point1 = (Point)vector1;";
resultType = "Point";
operationString = "Expliciting casting a Vector into a Point";
ShowResults(point1.ToString(), syntaxString, resultType, operationString);
break;
}
// task example. this case statement is not referenced from the list of radio buttons
case "rb40":
{
// adds two vectors using Add and +
var vector1 = new System.Windows.Vector(20, 30);
var vector2 = new System.Windows.Vector(45, 70);
vector1 = vector1 + vector2;
// vector1 is now equal to (65, 100)
vector1 = System.Windows.Vector.Add(vector1, vector2);
// vector1 is now equal to (110, 170)
// Displaying Results
syntaxString = "vectorResult = Vector.Negate(vector1);";
resultType = "Vector";
operationString = "Negating a vector";
ShowResults(vector1.ToString(), syntaxString, resultType, operationString);
break;
}
} // end switch
}
// Method to display the variables used in the operations
public void ShowVars()
{
// Displays the values of the variables
System.Windows.Point p1 = new System.Windows.Point(10, 5);
System.Windows.Point p2 = new System.Windows.Point(15, 40);
Vector v1 = new Vector(20, 30);
Vector v2 = new Vector(45, 70);
Matrix m1 = new Matrix(40, 50, 60, 70, 80, 90);
Double s1 = 75;
txtPoint1.Text = p1.ToString();
txtPoint2.Text = p2.ToString();
txtVector1.Text = v1.ToString();
txtVector2.Text = v2.ToString();
txtMatrix1.Text = m1.ToString();
txtScalar1.Text = s1.ToString();
}
// Displays the values of the variables
public void ShowVars()
{
Point p1 = new Point(10, 5);
Point p2 = new Point(15, 40);
Vector v1 = new Vector(20, 30);
Vector v2 = new Vector(45, 70);
Matrix m1 = new Matrix(40, 50, 60, 70, 80, 90);
// Displaying values in Text objects
txtPoint1.Text = p1.ToString();
txtPoint2.Text = p2.ToString();
txtVector1.Text = v1.ToString();
txtVector2.Text = v2.ToString();
txtMatrix1.Text = m1.ToString();
}
// This method performs the Point operations
public void PerformOperation(object sender, RoutedEventArgs e)
{
RadioButton li = sender as RadioButton;
// Strings used to display the results
String syntaxString, resultType, operationString;
// The local variables point1, point2, vector2, etc are defined in each
// case block for readability reasons. Each variable is contained within
// the scope of each case statement.
switch (li.Name)
{ //begin switch
case "rb1":
{
// Translates a Point by a Vector using the overloaded + operator.
// Returns a Point.
Point point1 = new Point(10, 5);
Vector vector1 = new Vector(20, 30);
Point pointResult = new Point();
pointResult = point1 + vector1;
// pointResult is equal to (30, 35)
// Note: Adding a Point to a Point is not a legal operation
// Displaying Results
syntaxString = "pointResult = point1 + vector1;";
resultType = "Point";
operationString = "Adding a Point and Vector";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb2":
{
// Translates a Point by a Vector using the static Add method.
// Returns a Point.
Point point1 = new Point(10, 5);
Vector vector1 = new Vector(20, 30);
Point pointResult = new Point();
pointResult = Point.Add(point1, vector1);
// pointResult is equal to (30, 35)
// Displaying Results
syntaxString = "pointResult = Point.Add(point1, vector1);";
resultType = "Point";
operationString = "Adding a Point and Vector";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb3":
{
// Subtracts a Vector from a Point using the overloaded - operator.
// Returns a Point.
Point point1 = new Point(10, 5);
Vector vector1 = new Vector(20, 30);
Point pointResult = new Point();
pointResult = point1 - vector1;
// pointResult is equal to (-10, -25)
// Displaying Results
syntaxString = "pointResult = point1 - vector1;";
resultType = "Point";
operationString = "Subtracting a Vector from a Point";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb4":
{
// Subtracts a Vector from a Point using the static Subtract method.
// Returns a Point.
Point point1 = new Point(10, 5);
Vector vector1 = new Vector(20, 30);
Point pointResult = new Point();
pointResult = Point.Subtract(point1, vector1);
// pointResult is equal to (-10, -25)
// Displaying Results
syntaxString = "pointResult = Point.Subtract(point1, vector1);";
resultType = "Point";
operationString = "Subtracting a Vector from a Point";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb5":
{
// Subtracts a Point from a Point using the overloaded - operator.
// Returns a Vector.
Point point1 = new Point(10, 5);
Point point2 = new Point(15, 40);
Vector vectorResult = new Vector();
vectorResult = point1 - point2;
// vectorResult is equal to (-5, -35)
// Displaying Results
syntaxString = "vectorResult = point1 - point2;";
resultType = "Vector";
operationString = "Subtracting a Point from a Point";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb6":
{
// Subtracts a Point from a Point using the static Subtract method.
// Returns a Vector.
Point point1 = new Point(10, 5);
Point point2 = new Point(15, 40);
Vector vectorResult = new Vector();
vectorResult = Point.Subtract(point1, point2);
// vectorResult is equal to (-5, -35)
// Displaying Results
syntaxString = "vectorResult = Point.Subtract(point1, point2);";
resultType = "Vector";
operationString = "Subtracting a Point from a Point";
ShowResults(vectorResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb7":
{
// Offsets the X and Y values of a Point.
Point point1 = new Point(10, 5);
point1.Offset(20, 30);
// point1 is equal to (30, 35)
// Note: This operation is equivalent to adding a point
// to vector with the corresponding X,Y values.
// Displaying Results
syntaxString = "point1.Offset(20,30);";
resultType = "Point";
operationString = "Offsetting a Point";
ShowResults(point1.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb8":
{
// Multiplies a Point by a Matrix.
// Returns a Point.
Point point1 = new Point(10, 5);
Point pointResult = new Point();
Matrix matrix1 = new Matrix(40, 50, 60, 70, 80, 90);
pointResult = point1 * matrix1;
// pointResult is equal to (780, 940)
// Displaying Results
resultType = "Point";
syntaxString = "pointResult = point1 * matrix1;";
operationString = "Multiplying a Point by a Matrix";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb9":
{
// Multiplies a Point by a Matrix.
// Returns a Point.
Point point1 = new Point(10, 5);
Point pointResult = new Point();
Matrix matrix1 = new Matrix(40, 50, 60, 70, 80, 90);
pointResult = Point.Multiply(point1, matrix1);
// pointResult is equal to (780, 940)
// Displaying Results
resultType = "Point";
syntaxString = "pointResult = Point.Multiply(point1, matrix1);";
operationString = "Multiplying a Point by a Matrix";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb10":
{
// Checks if two Points are equal using the overloaded equality operator.
Point point1 = new Point(10, 5);
Point point2 = new Point(15, 40);
Boolean areEqual;
areEqual = (point1 == point2);
// areEqual is False
// Displaying Results
syntaxString = "areEqual = (point1 == point2);";
resultType = "Boolean";
operationString = "Checking if two points are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb11":
{
// Checks if two Points are equal using the static Equals method.
Point point1 = new Point(10, 5);
Point point2 = new Point(15, 40);
Boolean areEqual;
areEqual = Point.Equals(point1, point2);
// areEqual is False
// Displaying Results
syntaxString = "areEqual = Point.Equals(point1, point2);";
resultType = "Boolean";
operationString = "Checking if two points are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb12":
{
// Compares an Object and a Point for equality using the non-static Equals method.
Point point1 = new Point(10, 5);
Point point2 = new Point(15, 40);
Boolean areEqual;
areEqual = point1.Equals(point2);
// areEqual is False
// Displaying Results
syntaxString = "areEqual = point1.Equals(point2);";
resultType = "Boolean";
operationString = "Checking if two points are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb13":
{
// Compares an Object and a Vector for equality using the non-static Equals method.
Vector vector1 = new Vector(20, 30);
Vector vector2 = new Vector(45, 70);
Boolean areEqual;
areEqual = vector1.Equals(vector2);
// areEqual is False
// Displaying Results
syntaxString = "areEqual = vector1.Equals(vector2);";
resultType = "Boolean";
operationString = "Checking if two vectors are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb14":
{
// Converts a string representation of a point into a Point structure
Point pointResult = new Point();
pointResult = Point.Parse("1,3");
// pointResult is equal to (1, 3)
// Displaying Results
syntaxString = "pointResult = Point.Parse(\"1,3\");";
resultType = "Matrix";
operationString = "Converts a string into a Point structure.";
ShowResults(pointResult.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb15":
{
// Gets a string representation of a Point structure
Point point1 = new Point(10, 5);
String pointString;
pointString = point1.ToString();
// pointString is equal to 10,5
// Displaying Results
syntaxString = "pointString = point1.ToString();";
resultType = "String";
operationString = "Getting the string representation of a Point";
ShowResults(pointString.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb16":
{
// Gets the hashcode of a Point structure
Point point1 = new Point(10, 5);
int pointHashCode;
pointHashCode = point1.GetHashCode();
// Displaying Results
syntaxString = "pointHashCode = point1.GetHashCode();";
resultType = "int";
operationString = "Getting the hashcode of Point";
ShowResults(pointHashCode.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb17":
{
// Explicitly converts a Point structure into a Size structure
// Returns a Size.
Point point1 = new Point(10, 5);
Size size1 = new Size();
size1 = (Size)point1;
// size1 has a width of 10 and a height of 5
// Displaying Results
syntaxString = "size1 = (Size)point1;";
resultType = "Size";
operationString = "Expliciting casting a Point into a Size";
ShowResults(size1.ToString(), syntaxString, resultType, operationString);
break;
}
case "rb18":
{
// Explicitly converts a Point structure into a Vector structure
// Returns a Vector.
Point point1 = new Point(10, 5);
Vector vector1 = new Vector();
vector1 = (Vector)point1;
// vector1 is equal to (10,5)
// Displaying Results
syntaxString = "vector1 = (Vector)point1;";
resultType = "Vector";
operationString = "Expliciting casting a Point into a Vector";
ShowResults(vector1.ToString(), syntaxString, resultType, operationString);
break;
}
// task example. Not accessed through radio buttons
case "rb20":
{
// Checks if two Points are not equal using the overloaded inequality operator.
// Declaring point1 and initializing x,y values
Point point1 = new Point(10, 5);
// Declaring point2 without initializing x,y values
Point point2 = new Point();
// Boolean to hold the result of the comparison
Boolean areNotEqual;
// assigning values to point2
point2.X = 15;
point2.Y = 40;
// checking for inequality
areNotEqual = (point1 != point2);
// areNotEqual is True
// Displaying Results
syntaxString = "areNotEqual = (point1 != point2);";
resultType = "Boolean";
operationString = "Checking if two points are not equal";
ShowResults(areNotEqual.ToString(), syntaxString, resultType, operationString);
break;
}
default:
break;
} //end switch
}
// Displays the values of the variables
public void ShowVars()
{
var p1 = new System.Windows.Point(10, 5);
var p2 = new System.Windows.Point(15, 40);
var v1 = new Vector(20, 30);
var v2 = new Vector(45, 70);
var m1 = new Matrix(40, 50, 60, 70, 80, 90);
// Displaying values in Text objects
txtPoint1.Text = p1.ToString();
txtPoint2.Text = p2.ToString();
txtVector1.Text = v1.ToString();
txtVector2.Text = v2.ToString();
txtMatrix1.Text = m1.ToString();
}