SkIPoint Reference === # IPoint ## Overview ## Overview Subtopic | name | description | | --- | --- | | Constructor | functions that construct SkIPoint | | Member Function | static functions and member methods | | Member | member values | | Operator | operator overloading methods | | Related Function | similar methods grouped together | # Struct SkIPoint SkIPoint holds two 32 bit integer coordinates. ## Related Function | name | description | | --- | --- | | Property | member values | | Set | replaces all values | ## Member Function | name | 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 | name | description | | --- | --- | | fX | x-axis value | | fY | y-axis value | int32_t fX x-axis value used by IPoint. int32_t fY y-axis value used by IPoint. ## Constructor | name | 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 SkIPoint16::Make --- ## Property | name | 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() SkIPoint16::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() SkIPoint16::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 | name | 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 SkIPoint16::set --- ## Operator | name | 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