QGIS API Documentation 3.40.0-Bratislava (b56115d8743)
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A rectangle specified with double values. More...
#include <qgsrectangle.h>
Public Member Functions | |
QgsRectangle ()=default | |
Constructor for a null rectangle. | |
QgsRectangle (const QgsPointXY &p1, const QgsPointXY &p2, bool normalize=true) | |
Construct a rectangle from two points. | |
QgsRectangle (const QgsRectangle &other) | |
QgsRectangle (const QRectF &qRectF) | |
Construct a rectangle from a QRectF. | |
QgsRectangle (double xMin, double yMin=0, double xMax=0, double yMax=0, bool normalize=true) | |
Constructs a QgsRectangle from a set of x and y minimum and maximum coordinates. | |
~QgsRectangle ()=default | |
double | area () const |
Returns the area of the rectangle. | |
QString | asPolygon () const |
Returns the rectangle as a polygon. | |
QString | asWktCoordinates () const |
Returns a string representation of the rectangle in WKT format. | |
QString | asWktPolygon () const |
Returns a string representation of the rectangle as a WKT Polygon. | |
QgsRectangle | buffered (double width) const |
Gets rectangle enlarged by buffer. | |
QgsPointXY | center () const |
Returns the center point of the rectangle. | |
void | combineExtentWith (const QgsPointXY &point) |
Expands the rectangle so that it covers both the original rectangle and the given point. | |
void | combineExtentWith (const QgsRectangle &rect) |
Expands the rectangle so that it covers both the original rectangle and the given rectangle. | |
void | combineExtentWith (double x, double y) |
Expands the rectangle so that it covers both the original rectangle and the given point. | |
bool | contains (const QgsPointXY &p) const |
Returns true when rectangle contains a point. | |
bool | contains (const QgsRectangle &rect) const |
Returns true when rectangle contains other rectangle. | |
bool | contains (double x, double y) const |
Returns true when rectangle contains the point at (x, y). | |
double | distance (const QgsPointXY &point) const |
Returns the distance from point to the nearest point on the boundary of the rectangle. | |
void | grow (double delta) |
Grows the rectangle in place by the specified amount. | |
double | height () const |
Returns the height of the rectangle. | |
void | include (const QgsPointXY &p) |
Updates the rectangle to include the specified point. | |
QgsRectangle | intersect (const QgsRectangle &rect) const |
Returns the intersection with the given rectangle. | |
bool | intersects (const QgsRectangle &rect) const |
Returns true when rectangle intersects with other rectangle. | |
void | invert () |
Swap x/y coordinates in the rectangle. | |
bool | isEmpty () const |
Returns true if the rectangle has no area. | |
bool | isFinite () const |
Returns true if the rectangle has finite boundaries. | |
bool | isNull () const |
Test if the rectangle is null (holding no spatial information). | |
void | normalize () |
Normalize the rectangle so it has non-negative width/height. | |
operator QVariant () const | |
Allows direct construction of QVariants from rectangles. | |
bool | operator!= (const QgsRectangle &r1) const |
QgsRectangle | operator+ (QgsVector v) const |
Returns a rectangle offset from this one in the direction of the vector. | |
QgsRectangle & | operator+= (QgsVector v) |
Moves this rectangle in the direction of the vector. | |
QgsRectangle | operator- (QgsVector v) const |
Returns a rectangle offset from this one in the direction of the reversed vector. | |
QgsRectangle & | operator-= (QgsVector v) |
Moves this rectangle in the direction of the reversed vector. | |
QgsRectangle & | operator= (const QgsRectangle &r1) |
bool | operator== (const QgsRectangle &r1) const |
double | perimeter () const |
Returns the perimeter of the rectangle. | |
void | scale (double scaleFactor, const QgsPointXY *c=nullptr) |
Scale the rectangle around its center point. | |
void | scale (double scaleFactor, double centerX, double centerY) |
Scale the rectangle around its center point. | |
QgsRectangle | scaled (double scaleFactor, const QgsPointXY *center=nullptr) const |
Scale the rectangle around its center point. | |
void | set (const QgsPointXY &p1, const QgsPointXY &p2, bool normalize=true) |
Sets the rectangle from two QgsPoints. | |
void | set (double xMin, double yMin, double xMax, double yMax, bool normalize=true) |
Sets the rectangle from four points. | |
Q_DECL_DEPRECATED void | setMinimal () |
Set a rectangle so that min corner is at max and max corner is at min. | |
void | setNull () |
Mark a rectangle as being null (holding no spatial information). | |
void | setXMaximum (double x) |
Set the maximum x value. | |
void | setXMinimum (double x) |
Set the minimum x value. | |
void | setYMaximum (double y) |
Set the maximum y value. | |
void | setYMinimum (double y) |
Set the minimum y value. | |
QgsRectangle | snappedToGrid (double spacing) const |
Returns a copy of this rectangle that is snapped to a grid with the specified spacing between the grid lines. | |
QgsBox3D | toBox3d (double zMin, double zMax) const |
Converts the rectangle to a 3D box, with the specified zMin and zMax z values. | |
QRectF | toRectF () const |
Returns a QRectF with same coordinates as the rectangle. | |
QString | toString (int precision=16) const |
Returns a string representation of form xmin,ymin : xmax,ymax Coordinates will be truncated to the specified precision. | |
double | width () const |
Returns the width of the rectangle. | |
double | xMaximum () const |
Returns the x maximum value (right side of rectangle). | |
double | xMinimum () const |
Returns the x minimum value (left side of rectangle). | |
double | yMaximum () const |
Returns the y maximum value (top side of rectangle). | |
double | yMinimum () const |
Returns the y minimum value (bottom side of rectangle). | |
Static Public Member Functions | |
static QgsRectangle | fromCenterAndSize (const QgsPointXY ¢er, double width, double height) |
Creates a new rectangle, given the specified center point and width and height. | |
static QgsRectangle | fromWkt (const QString &wkt) |
Creates a new rectangle from a wkt string. | |
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
Definition at line 41 of file qgsrectangle.h.
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default |
Constructor for a null rectangle.
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Constructs a QgsRectangle from a set of x and y minimum and maximum coordinates.
The rectangle will be normalized after creation. Since QGIS 3.20, if normalize is false
then the normalization step will not be applied automatically.
Definition at line 54 of file qgsrectangle.h.
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Construct a rectangle from two points.
The rectangle is normalized after construction. Since QGIS 3.20, if normalize is false
then the normalization step will not be applied automatically.
Definition at line 70 of file qgsrectangle.h.
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Construct a rectangle from a QRectF.
The rectangle is NOT normalized after construction.
Definition at line 80 of file qgsrectangle.h.
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Definition at line 88 of file qgsrectangle.h.
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Returns the area of the rectangle.
Definition at line 250 of file qgsrectangle.h.
QString QgsRectangle::asPolygon | ( | ) | const |
Returns the rectangle as a polygon.
Definition at line 163 of file qgsrectangle.cpp.
QString QgsRectangle::asWktCoordinates | ( | ) | const |
Returns a string representation of the rectangle in WKT format.
Definition at line 109 of file qgsrectangle.cpp.
QString QgsRectangle::asWktPolygon | ( | ) | const |
Returns a string representation of the rectangle as a WKT Polygon.
Definition at line 118 of file qgsrectangle.cpp.
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Gets rectangle enlarged by buffer.
Definition at line 344 of file qgsrectangle.h.
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Returns the center point of the rectangle.
Definition at line 261 of file qgsrectangle.h.
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Expands the rectangle so that it covers both the original rectangle and the given point.
Definition at line 451 of file qgsrectangle.h.
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Expands the rectangle so that it covers both the original rectangle and the given rectangle.
Definition at line 417 of file qgsrectangle.h.
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Expands the rectangle so that it covers both the original rectangle and the given point.
Definition at line 433 of file qgsrectangle.h.
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Returns true
when rectangle contains a point.
Definition at line 397 of file qgsrectangle.h.
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Returns true
when rectangle contains other rectangle.
Definition at line 389 of file qgsrectangle.h.
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Returns true
when rectangle contains the point at (x, y).
Definition at line 408 of file qgsrectangle.h.
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Returns the distance from point to the nearest point on the boundary of the rectangle.
Definition at line 460 of file qgsrectangle.h.
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Creates a new rectangle, given the specified center point and width and height.
Definition at line 57 of file qgsrectangle.cpp.
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static |
Creates a new rectangle from a wkt string.
The WKT must contain only 5 vertices, representing a rectangle aligned with X and Y axes.
Definition at line 34 of file qgsrectangle.cpp.
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Grows the rectangle in place by the specified amount.
Definition at line 306 of file qgsrectangle.h.
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Returns the height of the rectangle.
Definition at line 242 of file qgsrectangle.h.
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Updates the rectangle to include the specified point.
Definition at line 319 of file qgsrectangle.h.
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Returns the intersection with the given rectangle.
Definition at line 354 of file qgsrectangle.h.
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Returns true
when rectangle intersects with other rectangle.
Definition at line 370 of file qgsrectangle.h.
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Swap x/y coordinates in the rectangle.
Definition at line 596 of file qgsrectangle.h.
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Returns true
if the rectangle has no area.
An empty rectangle may still be non-null if it contains valid spatial information (e.g. bounding box of a point or of a vertical or horizontal segment).
Definition at line 496 of file qgsrectangle.h.
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Returns true
if the rectangle has finite boundaries.
Will return false
if any of the rectangle boundaries are NaN or Inf.
Definition at line 580 of file qgsrectangle.h.
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Test if the rectangle is null (holding no spatial information).
A null rectangle is also an empty rectangle.
Definition at line 509 of file qgsrectangle.h.
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Normalize the rectangle so it has non-negative width/height.
Definition at line 215 of file qgsrectangle.h.
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Allows direct construction of QVariants from rectangles.
Definition at line 609 of file qgsrectangle.h.
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Definition at line 558 of file qgsrectangle.h.
QgsRectangle QgsRectangle::operator+ | ( | QgsVector | v | ) | const |
Returns a rectangle offset from this one in the direction of the vector.
Definition at line 82 of file qgsrectangle.cpp.
QgsRectangle & QgsRectangle::operator+= | ( | QgsVector | v | ) |
Moves this rectangle in the direction of the vector.
Definition at line 100 of file qgsrectangle.cpp.
QgsRectangle QgsRectangle::operator- | ( | QgsVector | v | ) | const |
Returns a rectangle offset from this one in the direction of the reversed vector.
Definition at line 73 of file qgsrectangle.cpp.
QgsRectangle & QgsRectangle::operator-= | ( | QgsVector | v | ) |
Moves this rectangle in the direction of the reversed vector.
Definition at line 91 of file qgsrectangle.cpp.
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Definition at line 563 of file qgsrectangle.h.
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Definition at line 548 of file qgsrectangle.h.
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Returns the perimeter of the rectangle.
Definition at line 256 of file qgsrectangle.h.
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Scale the rectangle around its center point.
Definition at line 266 of file qgsrectangle.h.
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Scale the rectangle around its center point.
Definition at line 286 of file qgsrectangle.h.
QgsRectangle QgsRectangle::scaled | ( | double | scaleFactor, |
const QgsPointXY * | center = nullptr |
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) | const |
Scale the rectangle around its center point.
Definition at line 66 of file qgsrectangle.cpp.
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Sets the rectangle from two QgsPoints.
The rectangle is normalised after construction. Since QGIS 3.20, if normalize is false
then the normalization step will not be applied automatically.
Definition at line 119 of file qgsrectangle.h.
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Sets the rectangle from four points.
The rectangle is normalised after construction. Since QGIS 3.20, if normalize is false
then the normalization step will not be applied automatically.
Definition at line 135 of file qgsrectangle.h.
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Set a rectangle so that min corner is at max and max corner is at min.
It is NOT normalized.
Definition at line 187 of file qgsrectangle.h.
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Mark a rectangle as being null (holding no spatial information).
A null rectangle is also empty by definition.
Definition at line 175 of file qgsrectangle.h.
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Set the maximum x value.
Definition at line 153 of file qgsrectangle.h.
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Set the minimum x value.
Definition at line 148 of file qgsrectangle.h.
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Set the maximum y value.
Definition at line 163 of file qgsrectangle.h.
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Set the minimum y value.
Definition at line 158 of file qgsrectangle.h.
QgsRectangle QgsRectangle::snappedToGrid | ( | double | spacing | ) | const |
Returns a copy of this rectangle that is snapped to a grid with the specified spacing between the grid lines.
Definition at line 194 of file qgsrectangle.cpp.
QgsBox3D QgsRectangle::toBox3d | ( | double | zMin, |
double | zMax | ||
) | const |
Converts the rectangle to a 3D box, with the specified zMin and zMax z values.
Definition at line 189 of file qgsrectangle.cpp.
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Returns a QRectF with same coordinates as the rectangle.
Definition at line 531 of file qgsrectangle.h.
QString QgsRectangle::toString | ( | int | precision = 16 | ) | const |
Returns a string representation of form xmin,ymin : xmax,ymax Coordinates will be truncated to the specified precision.
If the specified precision is less than 0, a suitable minimum precision is used.
Definition at line 133 of file qgsrectangle.cpp.
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Returns the width of the rectangle.
Definition at line 235 of file qgsrectangle.h.
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Returns the x maximum value (right side of rectangle).
Definition at line 195 of file qgsrectangle.h.
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Returns the x minimum value (left side of rectangle).
Definition at line 200 of file qgsrectangle.h.
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Returns the y maximum value (top side of rectangle).
Definition at line 205 of file qgsrectangle.h.
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Returns the y minimum value (bottom side of rectangle).
Definition at line 210 of file qgsrectangle.h.