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import SVGArray from './SVGArray.js'
import {delimiter} from './regex.js'
import {subClassArray} from './ArrayPolyfill.js'
import {extend} from './tools.js'
const PointArray = subClassArray('PointArray', SVGArray)
export default PointArray
extend(PointArray, {
// Convert array to string
toString () {
// convert to a poly point string
for (var i = 0, il = this.length, array = []; i < il; i++) {
array.push(this[i].join(','))
}
return array.join(' ')
},
// Convert array to line object
toLine () {
return {
x1: this[0][0],
y1: this[0][1],
x2: this[1][0],
y2: this[1][1]
}
},
// Get morphed array at given position
at (pos) {
// make sure a destination is defined
if (!this.destination) return this
// generate morphed point string
for (var i = 0, il = this.length, array = []; i < il; i++) {
array.push([
this[i][0] + (this.destination[i][0] - this[i][0]) * pos,
this[i][1] + (this.destination[i][1] - this[i][1]) * pos
])
}
return new PointArray(array)
},
// Parse point string and flat array
parse (array = [[0, 0]]) {
var points = []
// if it is an array
if (array instanceof Array) {
// and it is not flat, there is no need to parse it
if (array[0] instanceof Array) {
return array
}
} else { // Else, it is considered as a string
// parse points
array = array.trim().split(delimiter).map(parseFloat)
}
// validate points - https://svgwg.org/svg2-draft/shapes.html#DataTypePoints
// Odd number of coordinates is an error. In such cases, drop the last odd coordinate.
if (array.length % 2 !== 0) array.pop()
// wrap points in two-tuples and parse points as floats
for (var i = 0, len = array.length; i < len; i = i + 2) {
points.push([ array[i], array[i + 1] ])
}
return points
},
// Move point string
move (x, y) {
var box = this.bbox()
// get relative offset
x -= box.x
y -= box.y
// move every point
if (!isNaN(x) && !isNaN(y)) {
for (var i = this.length - 1; i >= 0; i--) {
this[i] = [this[i][0] + x, this[i][1] + y]
}
}
return this
},
// Resize poly string
size (width, height) {
var i
var box = this.bbox()
// recalculate position of all points according to new size
for (i = this.length - 1; i >= 0; i--) {
if (box.width) this[i][0] = ((this[i][0] - box.x) * width) / box.width + box.x
if (box.height) this[i][1] = ((this[i][1] - box.y) * height) / box.height + box.y
}
return this
},
// Get bounding box of points
bbox () {
var maxX = -Infinity
var maxY = -Infinity
var minX = Infinity
var minY = Infinity
this.forEach(function (el) {
maxX = Math.max(el[0], maxX)
maxY = Math.max(el[1], maxY)
minX = Math.min(el[0], minX)
minY = Math.min(el[1], minY)
})
return {x: minX, y: minY, width: maxX - minX, height: maxY - minY}
}
})
// export default class PointArray extends SVGArray {
// constructor (array, fallback = [[0, 0]]) {
// super(array, fallback)
// }
//
// // Convert array to string
// toString () {
// // convert to a poly point string
// for (var i = 0, il = this.length, array = []; i < il; i++) {
// array.push(this[i].join(','))
// }
//
// return array.join(' ')
// }
//
// // toArray () {
// // return this.reduce(function (prev, curr) {
// // return [].concat.call(prev, curr)
// // }, [])
// // }
//
// // Convert array to line object
// toLine () {
// return {
// x1: this[0][0],
// y1: this[0][1],
// x2: this[1][0],
// y2: this[1][1]
// }
// }
//
// // Get morphed array at given position
// at (pos) {
// // make sure a destination is defined
// if (!this.destination) return this
//
// // generate morphed point string
// for (var i = 0, il = this.length, array = []; i < il; i++) {
// array.push([
// this[i][0] + (this.destination[i][0] - this[i][0]) * pos,
// this[i][1] + (this.destination[i][1] - this[i][1]) * pos
// ])
// }
//
// return new PointArray(array)
// }
//
// // Parse point string and flat array
// parse (array) {
// var points = []
//
// array = array.valueOf()
//
// // if it is an array
// if (Array.isArray(array)) {
// // and it is not flat, there is no need to parse it
// if (Array.isArray(array[0])) {
// return array
// }
// } else { // Else, it is considered as a string
// // parse points
// array = array.trim().split(delimiter).map(parseFloat)
// }
//
// // validate points - https://svgwg.org/svg2-draft/shapes.html#DataTypePoints
// // Odd number of coordinates is an error. In such cases, drop the last odd coordinate.
// if (array.length % 2 !== 0) array.pop()
//
// // wrap points in two-tuples and parse points as floats
// for (var i = 0, len = array.length; i < len; i = i + 2) {
// points.push([ array[i], array[i + 1] ])
// }
//
// return points
// }
//
// // Move point string
// move (x, y) {
// var box = this.bbox()
//
// // get relative offset
// x -= box.x
// y -= box.y
//
// // move every point
// if (!isNaN(x) && !isNaN(y)) {
// for (var i = this.length - 1; i >= 0; i--) {
// this[i] = [this[i][0] + x, this[i][1] + y]
// }
// }
//
// return this
// }
//
// // Resize poly string
// size (width, height) {
// var i
// var box = this.bbox()
//
// // recalculate position of all points according to new size
// for (i = this.length - 1; i >= 0; i--) {
// if (box.width) this[i][0] = ((this[i][0] - box.x) * width) / box.width + box.x
// if (box.height) this[i][1] = ((this[i][1] - box.y) * height) / box.height + box.y
// }
//
// return this
// }
//
// // Get bounding box of points
// bbox () {
// var maxX = -Infinity
// var maxY = -Infinity
// var minX = Infinity
// var minY = Infinity
// this.forEach(function (el) {
// maxX = Math.max(el[0], maxX)
// maxY = Math.max(el[1], maxY)
// minX = Math.min(el[0], minX)
// minY = Math.min(el[1], minY)
// })
// return {x: minX, y: minY, width: maxX - minX, height: maxY - minY}
// }
// }
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