SkIPoint Reference === # IPoint # Struct SkIPoint ## Typedef SkIPoint typedef define a data type.

Topic	Description

SkIPoint holds two 32-bit integer coordinates. ## Overview

Topic	Description
Constructors	functions that construct SkIPoint
Functions	global and class member functions
Members	member values
Operators	operator overloading methods
Related Functions	similar member functions grouped together

## Related Function SkIPoint global, struct, and class related member functions share a topic.

Topic	Description
IVector	alias for IPoint
Property	member values
Set	replaces all values

## Member Function SkIPoint member functions read and modify the structure properties.

Topic	Description
Make	constructs from integer inputs
equals	returns true if members are equal
isZero	returns true if both members equal zero
set	sets to integer input
x	returns fX
y	returns fY

## Member ### Members

Type	Name	Description
int32_t	`fX`	x-axis value
int32_t	`fY`	y-axis value

SkIPoint members may be read and written directly without using a member function.

Topic	Description
fX	x-axis value
fY	y-axis value

### Members ## Constructor SkIPoint can be constructed or initialized by these functions, including C++ class constructors.

Type	Name	Description
int32_t	`fX`	x-axis value used by IPoint.
int32_t	`fY`	y-axis value used by IPoint.

Topic	Description
Make	constructs from integer inputs

## Make

static constexpr SkIPoint Make(int32_t x, int32_t y)

Sets fX to x, fY to y. ### Parameters

`x`	integer x-axis value of constructed IPoint
`y`	integer y-axis value of constructed IPoint

### Return Value IPoint (x, y) ### Example

#### Example Output ~~~~ pt1 == pt2 ~~~~

### See Also set SkPoint::iset()^[2] SkPoint::Make --- ## Property

Topic	Description
isZero	returns true if both members equal zero
x	returns fX
y	returns fY

## x

int32_t x() const

Returns x-axis value of IPoint. ### Return Value fX ### Example

#### Example Output ~~~~ pt1.fX == pt1.x() ~~~~

### See Also y SkPoint::x() --- ## y

int32_t y() const

Returns y-axis value of IPoint. ### Return Value fY ### Example

#### Example Output ~~~~ pt1.fY == pt1.y() ~~~~

### See Also x SkPoint::y() --- ## isZero

bool isZero() const

Returns true if fX and fY are both zero. ### Return Value true if fX is zero and fY is zero ### Example

#### Example Output ~~~~ pt.isZero() == true ~~~~

### See Also SkPoint::isZero --- ## Set

Topic	Description
set	sets to integer input

## set

void set(int32_t x, int32_t y)

Sets fX to x and fY to y. ### Parameters

`x`	new value for fX
`y`	new value for fY

### Example

#### Example Output ~~~~ pt1 == pt2 ~~~~

### See Also Make --- ## Operator SkIPoint operators inline class member functions with arithmetic equivalents.

Topic	Description
equals	returns true if members are equal
operator!=(const SkIPoint& a, const SkIPoint& b)	returns true if IPoints are unequal
operator+(const SkIPoint& a, const SkIVector& b)	returns IPoint offset by IVector
operator+=(const SkIVector& v)	adds IVector to IPoint
operator-() const	reverses sign of IPoint
operator-(const SkIPoint& a, const SkIPoint& b)	returns IVector between IPoints
operator-=(const SkIVector& v)	subtracts IVector from IPoint
operator==(const SkIPoint& a, const SkIPoint& b)	returns true if IPoints are equal

## operator-

SkIPoint operator-() _const

Returns IPoint changing the signs of fX and fY. ### Return Value IPoint as (-fX, -fY) ### Example

#### Example Output ~~~~ pt: 0, 0 negate: 0, 0 pt: -1, -2 negate: 1, 2 pt: 2147483647, -2147483647 negate: -2147483647, 2147483647 pt: -2147483648, -2147483648 negate: -2147483648, -2147483648 ~~~~

void operator+=(const SkIVector& v)

Offsets IPoint by IVector v. Sets IPoint to(fX + v.fX, fY + v.fY) . ### Parameters

`v`	IVector to add

### Example

### See Also operator+(const SkIPoint& a, const SkIVector& b) SkPoint::operator+=(const SkVector& v) --- ## operator-=

void operator-=(const SkIVector& v)

Subtracts IVector v from IPoint. Sets IPoint to: (fX - v.fX, fY - v.fY) . ### Parameters

`v`	IVector to subtract

### Example

bool equals(int32_t x, int32_t y) const

Returns true if IPoint is equivalent to IPoint constructed from (x, y). ### Parameters

`x`	value compared with fX
`y`	value compared with fY

### Return Value true if IPoint equals (x, y) ### Example

#### Example Output ~~~~ pt: 0, 0 == pt pt: -1, -2 == pt pt: 2147483647, -1 == pt pt: -2147483648, -1 == pt ~~~~

### See Also operator==(const SkIPoint& a, const SkIPoint& b) --- ## operator==

bool operator==(const SkIPoint& a, const SkIPoint& b)

Returns true if a is equivalent to b. ### Parameters

`a`	IPoint to compare
`b`	IPoint to compare

### Return Value true if a.fX == b.fX and a.fY == b.fY ### Example

#### Example Output ~~~~ pt: 0, 0 == pt pt: -1, -2 == pt pt: 2147483647, -1 == pt pt: -2147483648, -1 == pt ~~~~

### See Also equals operator!=(const SkIPoint& a, const SkIPoint& b) --- ## operator!=

bool operator!=(const SkIPoint& a, const SkIPoint& b)

Returns true if a is not equivalent to b. ### Parameters

`a`	IPoint to compare
`b`	IPoint to compare

### Return Value true if a.fX != b.fX or a.fY != b.fY ### Example

#### Example Output ~~~~ pt: 0, 0 == pt pt: -1, -2 == pt pt: 2147483647, -1 == pt pt: -2147483648, -1 == pt ~~~~

### See Also operator==(const SkIPoint& a, const SkIPoint& b) equals --- ## operator-

SkIVector operator-(const SkIPoint& a, const SkIPoint& b)

Returns IVector from b to a; computed as(a.fX - b.fX, a.fY - b.fY) . Can also be used to subtract IVector from IVector, returning IVector. ### Parameters

`a`	IPoint or IVector to subtract from
`b`	IVector to subtract

### Return Value IVector from b to a ### Example

### See Also operator-=(const SkIVector& v) --- ## operator+

SkIPoint operator+(const SkIPoint& a, const SkIVector& b)

Returns IPoint resulting from IPoint a offset by IVector b, computed as: (a.fX + b.fX, a.fY + b.fY) . Can also be used to offset IPoint b by IVector a, returning IPoint. Can also be used to add IVector to IVector, returning IVector. ### Parameters

`a`	IPoint or IVector to add to
`b`	IPoint or IVector to add

### Return Value IPoint equal to a offset by b ### Example

### See Also operator+=(const SkIVector& v) --- ## IVector ## Typedef SkIVector

    typedef SkIPoint SkIVector;

SkIVector provides an alternative name for SkIPoint. SkIVector and SkIPoint can be used interchangeably for all purposes.