This union represents four double precision floating point values or a double precision float point rectangle.
Point is considered inside (in is_inside() and is_outside() methods) if its X coordinate is in range [Left, Right) and its Y coordinate is in range [Top, Bottom). It means if point lies directly on Left or Top border it is considered to be inside rectangle but if it lies on Right or Bottom border it is considered to be outside of rectangle.
You can find more information in comments below.
union RectD
{
struct
{
double Left;
double Top;
double Right;
double Bottom;
};
struct
{
PointD LeftTop;
PointD RightBottom;
};
double Data[4];
double operator[](const int index) const; // Return element
double &operator[](const int index); // Return element
bool is_valid(const double tolerance = ntl::Tolerance<double>) const; // Return whether right border isn't less than left and bottom isn't less than top
bool is_empty(const double tolerance = ntl::Tolerance<double>) const; // Return whether right border is same as left and bottom is same as top
bool is_zero(const double tolerance = ntl::Tolerance<double>) const; // Return whether either right border is same to left or bottom is same to top
bool has_negative(const double tolerance = ntl::Tolerance<double>) const; // Whether there is a negative element
bool has_positive(const double tolerance = ntl::Tolerance<double>) const; // Whether there is a positive element
bool has_area(const double tolerance = ntl::Tolerance<double>) const; // Return whether rectangle has positive area
double width() const; // Rectangle width
double height() const; // Rectangle height
void validate(const double tolerance = ntl::Tolerance<double>); // Make width and height not negative
bool is_inside(const PointD &p, const double tolerance = ntl::Tolerance<double>) const; // Return whether point is inside of the rectangle
bool is_outside(const PointD &p, const double tolerance = ntl::Tolerance<double>) const; // Return whether point is outside of the rectangle
};Following operators are also available.
RectD operator+(const RectD &a, const double value); // Add rect and value
RectD operator-(const RectD &a, const double value); // Subtract rect and value
RectD operator/(const RectD &a, const double value); // Divide rect and value
RectD operator*(const RectD &a, const double value); // Multiply rect and value
RectD operator+(const double value, const RectD &a); // Add value and rect
RectD operator-(const double value, const RectD &a); // Subtract value and rect
RectD operator/(const double value, const RectD &a); // Divide value and rect
RectD operator*(const double value, const RectD &a); // Multiply value and rect
RectD &operator+=(RectD &a, const double value); // Add value to rect
RectD &operator-=(RectD &a, const double value); // Subtract value from rect
RectD &operator/=(RectD &a, const double value); // Divide rect on value
RectD &operator*=(RectD &a, const double value); // Multiply rect on value
RectD operator+(const RectD &a, const RectD &b); // Find bounding rect for both rects
RectD operator*(const RectD &a, const RectD &b); // Calculate intersection
RectD &operator+=(RectD &a, const RectD &b); // Find bounding rect for both rects and store it in first one
RectD &operator*=(RectD &a, const RectD &b); // Calculate intersection and store it in first one
RectD operator+(const RectD &a, const PointD &shift); // Return moved in shift direction rect
RectD operator-(const RectD &a, const PointD &shift); // Return moved in opposite to shift direction rect
RectD operator*(const RectD &a, const PointD &shift); // Return scaled in shift direction rect
RectD &operator+=(RectD &a, const PointD &shift); // Move rect in shift direction
RectD &operator-=(RectD &a, const PointD &shift); // Move rect in direction opposite to shift
RectD &operator*=(RectD &a, const PointD &shift); // Scale rect in shift direction
std::wostream &operator<<(std::wostream &stream, const RectF &a); // Output as source code| Namespace: | nitisa |
| Include: | Nitisa/Math/RectD.h |