Package com.itextpdf.kernel.geom
Class Rectangle
- java.lang.Object
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- com.itextpdf.kernel.geom.Rectangle
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- All Implemented Interfaces:
java.lang.Cloneable
- Direct Known Subclasses:
PageSize,TextRectangle
public class Rectangle extends java.lang.Object implements java.lang.CloneableClass that represent rectangle object.
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Constructor Summary
Constructors Constructor Description Rectangle(float width, float height)Creates new instance of rectangle with (0, 0) as the lower left point.Rectangle(float x, float y, float width, float height)Creates new instance.Rectangle(Rectangle rect)Creates the copy of givenRectangle
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description RectangleapplyMargins(float topIndent, float rightIndent, float bottomIndent, float leftIndent, boolean reverse)Change the rectangle according the specified margins.static RectanglecalculateBBox(java.util.List<Point> points)Calculates the bounding box of passed points.Rectangleclone()Creates a "deep copy" of this rectangle, meaning the object returned by this method will be independent of the object being cloned.booleancontains(Rectangle rect)Check if this rectangle contains the passed rectangle.static RectanglecreateBoundingRectangleFromQuadPoint(PdfArray quadPoints)Create the bounding rectangle for the given array of quadpoints.static java.util.List<Rectangle>createBoundingRectanglesFromQuadPoint(PdfArray quadPoints)Create a list of bounding rectangles from an 8 x n array of Quadpoints.RectangledecreaseHeight(float extra)Decreases the height of rectangle by the given value.RectangledecreaseWidth(float extra)Decreases the width of rectangle by the given value.booleanequalsWithEpsilon(Rectangle that)Compares instance of this rectangle with given deviation equals to 0.0001booleanequalsWithEpsilon(Rectangle that, float eps)Compares instance of this rectangle with given deviation.floatgetBottom()Gets the Y coordinate of the lower edge of the rectangle.static RectanglegetCommonRectangle(Rectangle... rectangles)Calculates the common rectangle which includes all the input rectangles.floatgetHeight()Gets the height of rectangle.RectanglegetIntersection(Rectangle rect)Get the rectangle representation of the intersection between this rectangle and the passed rectanglefloatgetLeft()Gets the X coordinate of the left edge of the rectangle.static RectanglegetRectangleOnRotatedPage(Rectangle rect, PdfPage page)Gets the rectangle as it looks on the rotated page and returns the rectangle in coordinates relevant to the true page origin.floatgetRight()Gets the X coordinate of the right edge of the rectangle.floatgetTop()Gets the Y coordinate of the upper edge of the rectangle.floatgetWidth()Gets the width of rectangle.floatgetX()Gets the X coordinate of lower left point.floatgetY()Gets the Y coordinate of lower left point.RectangleincreaseHeight(float extra)Increases the height of rectangle by the given value.RectangleincreaseWidth(float extra)Increases the width of rectangle by the given value.booleanintersectsLine(float x1, float y1, float x2, float y2)Checks if rectangle have common points with line, specified by two points.private static booleanlinesIntersect(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4)RectanglemoveDown(float move)Decreases the y coordinate.RectanglemoveLeft(float move)Decreases the x coordinate.RectanglemoveRight(float move)Increases the x coordinate.RectanglemoveUp(float move)Increases the y coordinate.booleanoverlaps(Rectangle rect)Check if this rectangle and the passed rectangle overlapbooleanoverlaps(Rectangle rect, float epsilon)Check if this rectangle and the passed rectangle overlapRectanglesetBbox(float llx, float lly, float urx, float ury)Sets the rectangle by the coordinates, specifying its lower left and upper right points.RectanglesetHeight(float height)Sets the height of rectangle.RectanglesetWidth(float width)Sets the width of rectangle.RectanglesetX(float x)Sets the X coordinate of lower left point.RectanglesetY(float y)Sets the Y coordinate of lower left point.Point[]toPointsArray()Convert rectangle to an array of pointsjava.lang.StringtoString()Gets the string representation of rectangle.
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Constructor Detail
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Rectangle
public Rectangle(float x, float y, float width, float height)Creates new instance.- Parameters:
x- the x coordinate of lower left pointy- the y coordinate of lower left pointwidth- the width valueheight- the height value
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Rectangle
public Rectangle(float width, float height)Creates new instance of rectangle with (0, 0) as the lower left point.- Parameters:
width- the width valueheight- the height value
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Method Detail
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getCommonRectangle
public static Rectangle getCommonRectangle(Rectangle... rectangles)
Calculates the common rectangle which includes all the input rectangles.- Parameters:
rectangles- list of input rectangles.- Returns:
- common rectangle.
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getRectangleOnRotatedPage
public static Rectangle getRectangleOnRotatedPage(Rectangle rect, PdfPage page)
Gets the rectangle as it looks on the rotated page and returns the rectangle in coordinates relevant to the true page origin. This rectangle can be used to add annotations, fields, and other objects to the rotated page.- Parameters:
rect- the rectangle as it looks on the rotated page.page- the page on which one want to process the rectangle.- Returns:
- the newly created rectangle with translated coordinates.
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calculateBBox
public static Rectangle calculateBBox(java.util.List<Point> points)
Calculates the bounding box of passed points.- Parameters:
points- the points which appear inside the area- Returns:
- the bounding box of passed points.
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toPointsArray
public Point[] toPointsArray()
Convert rectangle to an array of points- Returns:
- array of four extreme points of rectangle
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getIntersection
public Rectangle getIntersection(Rectangle rect)
Get the rectangle representation of the intersection between this rectangle and the passed rectangle- Parameters:
rect- the rectangle to find the intersection with- Returns:
- the intersection rectangle if the passed rectangles intersects with this rectangle, a rectangle representing a line if the intersection is along an edge or a rectangle representing a point if the intersection is a single point, null otherwise
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contains
public boolean contains(Rectangle rect)
Check if this rectangle contains the passed rectangle. A rectangle will envelop itself, meaning that for any rectanglerectthe expressionrect.contains(rect)always returns true.- Parameters:
rect- a rectangle which is to be checked if it is fully contained inside this rectangle.- Returns:
- true if this rectangle contains the passed rectangle, false otherwise.
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overlaps
public boolean overlaps(Rectangle rect)
Check if this rectangle and the passed rectangle overlap- Parameters:
rect- a rectangle which is to be checked if it overlaps the passed rectangle- Returns:
- true if there is overlap of some kind
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overlaps
public boolean overlaps(Rectangle rect, float epsilon)
Check if this rectangle and the passed rectangle overlap- Parameters:
rect- a rectangle which is to be checked if it overlaps the passed rectangleepsilon- if greater than zero, then this is the maximum distance that one rectangle can go to another, but they will not overlap, if less than zero, then this is the minimum required distance between the rectangles so that they do not overlap- Returns:
- true if there is overlap of some kind
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setBbox
public Rectangle setBbox(float llx, float lly, float urx, float ury)
Sets the rectangle by the coordinates, specifying its lower left and upper right points. May be used in chain.
Note: this method will normalize coordinates, so the rectangle will have non negative width and height, and its x and y coordinates specified lower left point.- Parameters:
llx- the X coordinate of lower left pointlly- the Y coordinate of lower left pointurx- the X coordinate of upper right pointury- the Y coordinate of upper right point- Returns:
- this
Rectangleinstance.
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getX
public float getX()
Gets the X coordinate of lower left point.- Returns:
- the X coordinate of lower left point.
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setX
public Rectangle setX(float x)
Sets the X coordinate of lower left point. May be used in chain.- Parameters:
x- the X coordinate of lower left point to be set.- Returns:
- this
Rectangleinstance.
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getY
public float getY()
Gets the Y coordinate of lower left point.- Returns:
- the Y coordinate of lower left point.
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setY
public Rectangle setY(float y)
Sets the Y coordinate of lower left point. May be used in chain.- Parameters:
y- the Y coordinate of lower left point to be set.- Returns:
- this
Rectangleinstance.
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getWidth
public float getWidth()
Gets the width of rectangle.- Returns:
- the width of rectangle.
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setWidth
public Rectangle setWidth(float width)
Sets the width of rectangle. May be used in chain.- Parameters:
width- the the width of rectangle to be set.- Returns:
- this
Rectangleinstance.
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getHeight
public float getHeight()
Gets the height of rectangle.- Returns:
- the height of rectangle.
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setHeight
public Rectangle setHeight(float height)
Sets the height of rectangle. May be used in chain.- Parameters:
height- the the width of rectangle to be set.- Returns:
- this
Rectangleinstance.
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increaseHeight
public Rectangle increaseHeight(float extra)
Increases the height of rectangle by the given value. May be used in chain.- Parameters:
extra- the value of the extra height to be added.- Returns:
- this
Rectangleinstance.
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decreaseHeight
public Rectangle decreaseHeight(float extra)
Decreases the height of rectangle by the given value. May be used in chain.- Parameters:
extra- the value of the extra height to be subtracted.- Returns:
- this
Rectangleinstance.
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increaseWidth
public Rectangle increaseWidth(float extra)
Increases the width of rectangle by the given value. May be used in chain.- Parameters:
extra- the value of the extra wudth to be added.- Returns:
- this
Rectangleinstance.
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decreaseWidth
public Rectangle decreaseWidth(float extra)
Decreases the width of rectangle by the given value. May be used in chain.- Parameters:
extra- the value of the extra width to be subtracted.- Returns:
- this
Rectangleinstance.
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getLeft
public float getLeft()
Gets the X coordinate of the left edge of the rectangle. Same as:getX().- Returns:
- the X coordinate of the left edge of the rectangle.
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getRight
public float getRight()
Gets the X coordinate of the right edge of the rectangle. Same as:getX() + getWidth().- Returns:
- the X coordinate of the right edge of the rectangle.
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getTop
public float getTop()
Gets the Y coordinate of the upper edge of the rectangle. Same as:getY() + getHeight().- Returns:
- the Y coordinate of the upper edge of the rectangle.
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getBottom
public float getBottom()
Gets the Y coordinate of the lower edge of the rectangle. Same as:getY().- Returns:
- the Y coordinate of the lower edge of the rectangle.
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moveDown
public Rectangle moveDown(float move)
Decreases the y coordinate.- Parameters:
move- the value on which the position will be changed.- Returns:
- this
Rectangleinstance.
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moveUp
public Rectangle moveUp(float move)
Increases the y coordinate.- Parameters:
move- the value on which the position will be changed.- Returns:
- this
Rectangleinstance.
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moveRight
public Rectangle moveRight(float move)
Increases the x coordinate.- Parameters:
move- the value on which the position will be changed.- Returns:
- this
Rectangleinstance.
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moveLeft
public Rectangle moveLeft(float move)
Decreases the x coordinate.- Parameters:
move- the value on which the position will be changed.- Returns:
- this
Rectangleinstance.
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applyMargins
public Rectangle applyMargins(float topIndent, float rightIndent, float bottomIndent, float leftIndent, boolean reverse)
Change the rectangle according the specified margins.- Parameters:
topIndent- the value on which the top y coordinate will change.rightIndent- the value on which the right x coordinate will change.bottomIndent- the value on which the bottom y coordinate will change.leftIndent- the value on which the left x coordinate will change.reverse- iftruethe rectangle will expand, otherwise it will shrink- Returns:
- the rectangle with applied margins
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intersectsLine
public boolean intersectsLine(float x1, float y1, float x2, float y2)Checks if rectangle have common points with line, specified by two points.- Parameters:
x1- the x coordinate of first line's point.y1- the y coordinate of first line's point.x2- the x coordinate of second line's point.y2- the y coordinate of second line's point.- Returns:
trueif rectangle have common points with line andfalseotherwise.
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toString
public java.lang.String toString()
Gets the string representation of rectangle.- Overrides:
toStringin classjava.lang.Object- Returns:
- the string representation of rectangle.
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clone
public Rectangle clone()
Creates a "deep copy" of this rectangle, meaning the object returned by this method will be independent of the object being cloned.- Overrides:
clonein classjava.lang.Object- Returns:
- the copied rectangle.
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equalsWithEpsilon
public boolean equalsWithEpsilon(Rectangle that)
Compares instance of this rectangle with given deviation equals to 0.0001- Parameters:
that- theRectangleto compare with.- Returns:
trueif the difference between corresponding rectangle values is less than deviation andfalseotherwise.
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equalsWithEpsilon
public boolean equalsWithEpsilon(Rectangle that, float eps)
Compares instance of this rectangle with given deviation.- Parameters:
that- theRectangleto compare with.eps- the deviation value.- Returns:
trueif the difference between corresponding rectangle values is less than deviation andfalseotherwise.
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linesIntersect
private static boolean linesIntersect(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4)
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createBoundingRectanglesFromQuadPoint
public static java.util.List<Rectangle> createBoundingRectanglesFromQuadPoint(PdfArray quadPoints) throws PdfException
Create a list of bounding rectangles from an 8 x n array of Quadpoints.- Parameters:
quadPoints- 8xn array of numbers representing 4 points- Returns:
- a list of bounding rectangles for the passed quadpoints
- Throws:
PdfException- if the passed array's size is not a multiple of 8.
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createBoundingRectangleFromQuadPoint
public static Rectangle createBoundingRectangleFromQuadPoint(PdfArray quadPoints) throws PdfException
Create the bounding rectangle for the given array of quadpoints.- Parameters:
quadPoints- an array containing 8 numbers that correspond to 4 points.- Returns:
- The smallest orthogonal rectangle containing the quadpoints.
- Throws:
PdfException- if the passed array's size is not a multiple of 8.
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