/// <summary>
/// Creates a copy of the given object or the default object when given <c>null</c>.
/// </summary>
/// <param name="options">The object to clone.</param>
/// <returns>A new object.</returns>
public static PolygonBinaryOperationOptions CloneOrDefault(PolygonBinaryOperationOptions options)
{
Contract.Ensures(Contract.Result <PolygonBinaryOperationOptions>() != null);
return(null == options
? new PolygonBinaryOperationOptions()
: new PolygonBinaryOperationOptions(options));
}
/// <summary>
/// Copy constructor.
/// </summary>
/// <param name="options">The object to copy.</param>
public PolygonBinaryOperationOptions(PolygonBinaryOperationOptions options)
: base(options) {
if (null == options) throw new ArgumentNullException("options");
Contract.EndContractBlock();
InvertLeftHandSide = options.InvertLeftHandSide;
InvertRightHandSide = options.InvertRightHandSide;
}
static PolygonUnionOperation() {
DefaultInverseIntersectionOptions = new PolygonBinaryOperationOptions {
InvertLeftHandSide = true,
InvertRightHandSide = true,
InvertResult = true
};
DefaultInverseIntersectionOperation = new PolygonIntersectionOperation(DefaultInverseIntersectionOptions);
}
static PolygonDifferenceOperation() {
DefaultInverseRightIntersectionOptions = new PolygonBinaryOperationOptions {
InvertLeftHandSide = false,
InvertRightHandSide = true,
InvertResult = false
};
DefaultInverseRightIntersectionOperation = new PolygonIntersectionOperation(DefaultInverseRightIntersectionOptions);
}
static PolygonDifferenceOperation()
{
DefaultInverseRightIntersectionOptions = new PolygonBinaryOperationOptions {
InvertLeftHandSide = false,
InvertRightHandSide = true,
InvertResult = false
};
DefaultInverseRightIntersectionOperation = new PolygonIntersectionOperation(DefaultInverseRightIntersectionOptions);
}
static PolygonUnionOperation()
{
DefaultInverseIntersectionOptions = new PolygonBinaryOperationOptions {
InvertLeftHandSide = true,
InvertRightHandSide = true,
InvertResult = true
};
DefaultInverseIntersectionOperation = new PolygonIntersectionOperation(DefaultInverseIntersectionOptions);
}
/// <summary>
/// Copy constructor.
/// </summary>
/// <param name="options">The object to copy.</param>
public PolygonBinaryOperationOptions(PolygonBinaryOperationOptions options)
: base(options)
{
if (null == options)
{
throw new ArgumentNullException("options");
}
Contract.EndContractBlock();
InvertLeftHandSide = options.InvertLeftHandSide;
InvertRightHandSide = options.InvertRightHandSide;
}
/// <summary>
/// Creates a copy of the given object or the default object when given <c>null</c>.
/// </summary>
/// <param name="options">The object to clone.</param>
/// <returns>A new object.</returns>
public static PolygonBinaryOperationOptions CloneOrDefault(PolygonBinaryOperationOptions options) {
Contract.Ensures(Contract.Result<PolygonBinaryOperationOptions>() != null);
return null == options
? new PolygonBinaryOperationOptions()
: new PolygonBinaryOperationOptions(options);
}
/// <summary>
/// Constructs a new polygon intersection operation using the given options.
/// </summary>
/// <param name="options">The operation options to apply.</param>
/// <remarks>
/// Using this constructor can help optimize other operators that
/// rely on intersection operations, such as union or difference.
/// </remarks>
internal PolygonIntersectionOperation(PolygonBinaryOperationOptions options)
{
Options = PolygonBinaryOperationOptions.CloneOrDefault(options);
}
/// <summary>
/// Constructs a new polygon intersection operation using the given options.
/// </summary>
/// <param name="options">The operation options to apply.</param>
/// <remarks>
/// Using this constructor can help optimize other operators that
/// rely on intersection operations, such as union or difference.
/// </remarks>
internal PolygonIntersectionOperation(PolygonBinaryOperationOptions options) {
Options = PolygonBinaryOperationOptions.CloneOrDefault(options);
}