mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-25 00:58:06 -05:00
99 lines
3.8 KiB
Plaintext
99 lines
3.8 KiB
Plaintext
|
|
/*! \class QgsRectangle
|
|
* \brief A rectangle specified with double values.
|
|
*
|
|
* QgsRectangle is used to store a rectangle when double values are required.
|
|
* Examples are storing a layer extent or the current view extent of a map
|
|
*/
|
|
class QgsRectangle
|
|
{
|
|
%TypeHeaderCode
|
|
#include <qgsrectangle.h>
|
|
%End
|
|
|
|
public:
|
|
//! Constructor
|
|
QgsRectangle(double xmin=0, double ymin=0, double xmax=0, double ymax=0);
|
|
//! Construct a rectangle from two points. The rectangle is normalized after construction.
|
|
QgsRectangle(const QgsPoint & p1, const QgsPoint & p2);
|
|
//! Copy constructor
|
|
QgsRectangle(const QgsRectangle &other);
|
|
//! Destructor
|
|
~QgsRectangle();
|
|
//! Set the rectangle from two QgsPoints. The rectangle is
|
|
//normalised after construction.
|
|
void set(const QgsPoint& p1, const QgsPoint& p2);
|
|
//! Set the rectangle from four points. The rectangle is
|
|
// normalised after construction.
|
|
void set(double xmin, double ymin, double xmax, double ymax);
|
|
//! Set the minimum x value
|
|
void setXMinimum(double x);
|
|
//! Set the maximum x value
|
|
void setXMaximum(double x);
|
|
//! Set the maximum y value
|
|
void setYMinimum(double y);
|
|
//! Set the maximum y value
|
|
void setYMaximum(double y);
|
|
//! Set a rectangle so that min corner is at max
|
|
// and max corner is at min. It is NOT normalized.
|
|
void setMinimal();
|
|
//! Get the x maximum value (right side of rectangle)
|
|
double xMaximum() const;
|
|
//! Get the x minimum value (left side of rectangle)
|
|
double xMinimum() const;
|
|
//! Get the y maximum value (top side of rectangle)
|
|
double yMaximum() const;
|
|
//! Get the y minimum value (bottom side of rectangle)
|
|
double yMinimum() const;
|
|
//! Normalize the rectangle so it has non-negative width/height
|
|
void normalize();
|
|
//! Width of the rectangle
|
|
double width() const;
|
|
//! Height of the rectangle
|
|
double height() const;
|
|
//! Center point of the rectangle
|
|
QgsPoint center() const;
|
|
//! Scale the rectangle around its center point
|
|
void scale(double, const QgsPoint *c =0);
|
|
//! Expand the rectangle to support zoom out scaling
|
|
// @deprecated use scale instead
|
|
void expand(double, const QgsPoint *c = 0) /Deprecated/;
|
|
//! return the intersection with the given rectangle
|
|
QgsRectangle intersect(const QgsRectangle *rect);
|
|
//! returns true when rectangle intersects with other rectangle
|
|
bool intersects(const QgsRectangle& rect) const;
|
|
//! return true when rectangle contains other rectangle
|
|
//! @note added in version 1.1
|
|
bool contains( const QgsRectangle& rect ) const;
|
|
//! return true when rectangle contains a point
|
|
//! @note added in version 1.3
|
|
bool contains( const QgsPoint& p ) const;
|
|
//! expand the rectangle so that covers both the original rectangle and the given rectangle
|
|
void combineExtentWith(QgsRectangle *rect);
|
|
//! expand the rectangle so that covers both the original rectangle and the given point
|
|
void combineExtentWith(double x, double y);
|
|
//! test if rectangle is empty
|
|
bool isEmpty() const;
|
|
//! returns string representation in Wkt form
|
|
QString asWktCoordinates() const;
|
|
//! returns string representation of form xmin,ymin xmax,ymax
|
|
QString toString(bool automaticPrecision = false) const;
|
|
//! overloaded toString that allows precision of numbers to be set
|
|
QString toString(int thePrecision) const;
|
|
//! returns rectangle as a polygon
|
|
QString asPolygon() const;
|
|
/*! Comparison operator
|
|
@return True if rectangles are equal
|
|
*/
|
|
bool operator==(const QgsRectangle &r1) const;
|
|
/*! Comparison operator
|
|
@return False if rectangles are equal
|
|
*/
|
|
bool operator!=(const QgsRectangle &r1) const;
|
|
//! updates rectangle to include passed argument
|
|
void unionRect(const QgsRectangle& rect);
|
|
//! swap x/y
|
|
//! @note added in 1.9
|
|
void invert();
|
|
};
|