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@mapbox/point-geometry\n\nA `Point` class for representing point geometry with useful utility methods.\n\n## Installation\n\n```sh\n$ npm install @mapbox/point-geometry\n```\n\n## API\n\n\n\n### Point\n\nA standalone point geometry with useful accessor, comparison, and\nmodification methods.\n\n#### Parameters\n\n* `x` **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** the x-coordinate. This could be longitude or screen pixels, or any other sort of unit.\n* `y` **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** the y-coordinate. This could be latitude or screen pixels, or any other sort of unit.\n\n#### Examples\n\n```javascript\nconst point = new Point(-77, 38);\n```\n\n#### clone\n\nClone this point, returning a new point that can be modified\nwithout affecting the old one.\n\nReturns **[Point](#point)** the clone\n\n#### add\n\nAdd this point's x & y coordinates to another point,\nyielding a new point.\n\n##### Parameters\n\n* `p` **[Point](#point)** the other point\n\nReturns **[Point](#point)** output point\n\n#### sub\n\nSubtract this point's x & y coordinates to from point,\nyielding a new point.\n\n##### Parameters\n\n* `p` **[Point](#point)** the other point\n\nReturns **[Point](#point)** output point\n\n#### multByPoint\n\nMultiply this point's x & y coordinates by point,\nyielding a new point.\n\n##### Parameters\n\n* `p` **[Point](#point)** the other point\n\nReturns **[Point](#point)** output point\n\n#### divByPoint\n\nDivide this point's x & y coordinates by point,\nyielding a new point.\n\n##### Parameters\n\n* `p` **[Point](#point)** the other point\n\nReturns **[Point](#point)** output point\n\n#### mult\n\nMultiply this point's x & y coordinates by a factor,\nyielding a new point.\n\n##### Parameters\n\n* `k` **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** factor\n\nReturns **[Point](#point)** output point\n\n#### div\n\nDivide this point's x & y coordinates by a factor,\nyielding a new point.\n\n##### Parameters\n\n* `k` **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** factor\n\nReturns **[Point](#point)** output point\n\n#### rotate\n\nRotate this point around the 0, 0 origin by an angle a,\ngiven in radians\n\n##### Parameters\n\n* `a` **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** angle to rotate around, in radians\n\nReturns **[Point](#point)** output point\n\n#### rotateAround\n\nRotate this point around p point by an angle a,\ngiven in radians\n\n##### Parameters\n\n* `a` **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** angle to rotate around, in radians\n* `p` **[Point](#point)** Point to rotate around\n\nReturns **[Point](#point)** output point\n\n#### matMult\n\nMultiply this point by a 4x1 transformation matrix\n\n##### Parameters\n\n* `m` **\\[[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number), [number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number), [number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number), [number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)]** transformation matrix\n\nReturns **[Point](#point)** output point\n\n#### unit\n\nCalculate this point but as a unit vector from 0, 0, meaning\nthat the distance from the resulting point to the 0, 0\ncoordinate will be equal to 1 and the angle from the resulting\npoint to the 0, 0 coordinate will be the same as before.\n\nReturns **[Point](#point)** unit vector point\n\n#### perp\n\nCompute a perpendicular point, where the new y coordinate\nis the old x coordinate and the new x coordinate is the old y\ncoordinate multiplied by -1\n\nReturns **[Point](#point)** perpendicular point\n\n#### round\n\nReturn a version of this point with the x & y coordinates\nrounded to integers.\n\nReturns **[Point](#point)** rounded point\n\n#### mag\n\nReturn the magnitude of this point: this is the Euclidean\ndistance from the 0, 0 coordinate to this point's x and y\ncoordinates.\n\nReturns **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** magnitude\n\n#### equals\n\nJudge whether this point is equal to another point, returning\ntrue or false.\n\n##### Parameters\n\n* `other` **[Point](#point)** the other point\n\nReturns **[boolean](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean)** whether the points are equal\n\n#### dist\n\nCalculate the distance from this point to another point\n\n##### Parameters\n\n* `p` **[Point](#point)** the other point\n\nReturns **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** distance\n\n#### distSqr\n\nCalculate the distance from this point to another point,\nwithout the square root step. Useful if you're comparing\nrelative distances.\n\n##### Parameters\n\n* `p` **[Point](#point)** the other point\n\nReturns **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** distance\n\n#### angle\n\nGet the angle from the 0, 0 coordinate to this point, in radians\ncoordinates.\n\nReturns **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** angle\n\n#### angleTo\n\nGet the angle from this point to another point, in radians\n\n##### Parameters\n\n* `b` **[Point](#point)** the other point\n\nReturns **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** angle\n\n#### angleWith\n\nGet the angle between this point and another point, in radians\n\n##### Parameters\n\n* `b` **[Point](#point)** the other point\n\nReturns **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** angle\n\n#### angleWithSep\n\nFind the angle of the two vectors, solving the formula for\nthe cross product a x b = |a||b|sin(θ) for θ.\n\n##### Parameters\n\n* `x` **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** the x-coordinate\n* `y` **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** the y-coordinate\n\nReturns **[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)** the angle in radians\n\n#### convert\n\nConstruct a point from an array if necessary, otherwise if the input\nis already a Point, or an unknown type, return it unchanged\n\n##### Parameters\n\n* `a` **(\\[[number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number), [number](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number)] | [Point](#point))** any kind of input value\n\n##### Examples\n\n```javascript\n// this\nvar point = Point.convert([0, 1]);\n// is equivalent to\nvar point = new Point(0, 1);\n```\n\nReturns **[Point](#point)** constructed point, or passed-through value.","users":{}}