API reference - Class DPointNotation used in Ruby API documentation Description: A point class with double (floating-point) coordinates
Points represent a coordinate in the two-dimensional coordinate space of layout. They are not geometrical objects by itself. But they are frequently used in the database API for various purposes. Other than the integer variant (Point), points with floating-point coordinates can represent fractions of a database unit. See The Database API for more details about the database objects. Public constructors
Public methods
Public static methods and constants
Deprecated methods (protected, public, static, non-static and constructors)
Detailed description[const] bool !=(const DPoint p)Description: Inequality test operator [const] DPoint *(double f)Description: Scaling by some factor Returns the scaled object. All coordinates are multiplied with the given factor and if necessary rounded. [const] DPoint +(const DPoint p)Description: Add one point to another Add point p to self by adding the coordinates [const] DPoint -(const DPoint p)Description: Subtract one point from another Subtract point p from self by subtracting the coordinates [const] DPoint -@(p)Description: Compute the negative of a point Returns a new point with -x, -y. This method has been added in version 0.23. [const] bool <(const DPoint p)Description: "less" comparison operator This operator is provided to establish a sorting order [const] bool ==(const DPoint p)Description: Equality test operator [const] double absDescription: The absolute value of the point (Euclidian distance to 0,0) The returned value is 'sqrt(x*x+y*y)'. This method has been introduced in version 0.23. [const] void assign(const DPoint other)Description: Assign the contents of another object to self This method assigns the contents of another object to self. This is a deep copy that does not only copy the reference but the actual content. void createDescription: Ensures the C++ object is created Use this method to ensure the C++ object is created, for example to ensure that resources are allocated. Usually C++ objects are created on demand and not necessarily when the script object is created. void destroyDescription: Explicitly destroy the object Explicitly destroy the object on C++ side if it was owned by the Ruby interpreter. Subsequent access to this object will throw an exception. If the object is not owned by Ruby, this method will do nothing. [const] bool destroyed?Description: Returns a value indicating whether the object was already destroyed This method returns true, if the object was destroyed, either explicitly or by the C++ side. The latter may happen, if the object is owned by a C++ object which got destroyed itself. [const] double distance(const DPoint d)Description: The Euclidian distance to another point
[const] DPoint dupDescription: Creates a copy of self [static] DPoint from_ipoint(const Point p)Description: Create a floating-point coordinate point from an integer coordinate point [static] new DPoint from_s(string s)Description: Creates an object from a string Creates the object from a string representation (as returned by to_s) This method has been added in version 0.23. [const] bool is_const_object?Description: Returns a value indicating whether the reference is a const reference This method returns true, if self is a const reference. In that case, only const methods may be called on self. [static] new DPoint newDescription: Default constructor: creates a point at 0,0 [static] new DPoint new(double x,double y)Description: Constructor for a point from two coordinate values [static] new DPoint new_xy(double x,double y)Description: Constructor for a point from two coordinate values This method is deprecated. Use method 'new' instead [const] double sq_absDescription: The square of the absolute value of the point (Euclidian distance to 0,0) The returned value is 'x*x+y*y'. This method has been introduced in version 0.23. [const] double sq_distance(const DPoint d)Description: The square Euclidian distance to another point
[const] string to_sDescription: String conversion [const] double xDescription: Accessor to the x coordinate void x=(double coord)Description: Write accessor to the x coordinate [const] double yDescription: Accessor to the y coordinate void y=(double coord)Description: Write accessor to the y coordinate |