| 25 | export class WKT extends Format { |
| 26 | |
| 27 | constructor(options) { |
| 28 | super(options); |
| 29 | this.regExes = { |
| 30 | 'typeStr': /^\s*(\w+)\s*\(\s*(.*)\s*\)\s*$/, |
| 31 | 'spaces': /\s+/, |
| 32 | 'parenComma': /\)\s*,\s*\(/, |
| 33 | 'doubleParenComma': /\)\s*\)\s*,\s*\(\s*\(/, // can't use {2} here |
| 34 | 'trimParens': /^\s*\(?(.*?)\)?\s*$/ |
| 35 | }; |
| 36 | this.CLASS_NAME = "SuperMap.Format.WKT"; /** |
| 37 | * @private |
| 38 | * @description Object with properties corresponding to the geometry types. |
| 39 | * Property values are functions that do the actual data extraction. |
| 40 | */ |
| 41 | this.extract = { |
| 42 | /** |
| 43 | * @description Return a space delimited string of point coordinates. |
| 44 | * @param {GeometryPoint} point |
| 45 | * @returns {string} A string of coordinates representing the point |
| 46 | */ |
| 47 | 'point': function (point) { |
| 48 | return point.x + ' ' + point.y; |
| 49 | }, |
| 50 | |
| 51 | /** |
| 52 | * @description Return a comma delimited string of point coordinates from a multipoint. |
| 53 | * @param {GeometryMultiPoint} multipoint |
| 54 | * @returns {string} A string of point coordinate strings representing |
| 55 | * the multipoint |
| 56 | */ |
| 57 | 'multipoint'(multipoint) { |
| 58 | var array = []; |
| 59 | for (var i = 0, len = multipoint.components.length; i < len; ++i) { |
| 60 | array.push('(' + |
| 61 | this.extract.point.apply(this, [multipoint.components[i]]) + |
| 62 | ')'); |
| 63 | } |
| 64 | return array.join(','); |
| 65 | }, |
| 66 | |
| 67 | /** |
| 68 | * @description Return a comma delimited string of point coordinates from a line. |
| 69 | * @param {GeometryLineString} linestring |
| 70 | * @returns {string} A string of point coordinate strings representing |
| 71 | * the linestring |
| 72 | */ |
| 73 | 'linestring'(linestring) { |
| 74 | var array = []; |
| 75 | for (var i = 0, len = linestring.components.length; i < len; ++i) { |
| 76 | array.push(this.extract.point.apply(this, [linestring.components[i]])); |
| 77 | } |
| 78 | return array.join(','); |
| 79 | }, |
| 80 | |
| 81 | /** |
| 82 | * @description Return a comma delimited string of linestring strings from a multilinestring. |
| 83 | * @param {GeometryMultiLineString} multilinestring |
| 84 | * @returns {string} A string of of linestring strings representing |