SGraphPolyGroupItem.ts 4.5 KB

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  1. /*
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  19. * .:R888888I
  20. * .&888888I Copyright (c) 2009-2020. 博锐尚格科技股份有限公司
  21. * ~8888'
  22. * .!88~ All rights reserved.
  23. *
  24. * *********************************************************************************************************************
  25. */
  26. import { SGraphItem } from "../SGraphItem";
  27. import { SPainter, SPoint, SPolygonUtil, SRect } from "@persagy-web/draw/lib";
  28. import { SGraphShape } from "./SGraphShape";
  29. import { PolyGroup } from "..";
  30. /**
  31. * 多边形组
  32. *
  33. * @author 郝建龙 <haojianlong@sagacloud.cn>
  34. */
  35. export class SGraphPolyGroupItem extends SGraphShape {
  36. /** X坐标最小值 */
  37. private minX = Number.MAX_SAFE_INTEGER;
  38. /** X坐标最大值 */
  39. private maxX = Number.MIN_SAFE_INTEGER;
  40. /** Y坐标最小值 */
  41. private minY = Number.MAX_SAFE_INTEGER;
  42. /** Y坐标最大值 */
  43. private maxY = Number.MIN_SAFE_INTEGER;
  44. /** 多边形组轮廓线坐标list */
  45. private readonly pointList: SPoint[][] = [];
  46. /**
  47. * 构造函数
  48. *
  49. * @param parent 父类
  50. * @param data 轮廓线及风格数据
  51. * */
  52. constructor(parent: SGraphItem | null, data: PolyGroup) {
  53. super(parent, data.style);
  54. if (data.outline.length && data.outline[0] && data.outline[0].length) {
  55. this.minX = data.outline[0][0].x;
  56. this.maxX = this.minX;
  57. this.minY = data.outline[0][0].y;
  58. this.maxY = this.minY;
  59. this.pointList = data.outline.map((t): SPoint[] => {
  60. return t.map(
  61. (it): SPoint => {
  62. let x = it.x,
  63. y = it.y;
  64. if (x < this.minX) {
  65. this.minX = x;
  66. }
  67. if (y < this.minY) {
  68. this.minY = y;
  69. }
  70. if (x > this.maxX) {
  71. this.maxX = x;
  72. }
  73. if (y > this.maxY) {
  74. this.maxY = y;
  75. }
  76. return new SPoint(x, y);
  77. }
  78. );
  79. });
  80. }
  81. } // Constructor
  82. /**
  83. * Item对象边界区域
  84. *
  85. * @return SRect
  86. */
  87. boundingRect(): SRect {
  88. return new SRect(
  89. this.minX,
  90. this.minY,
  91. this.maxX - this.minX,
  92. this.maxY - this.minY
  93. );
  94. } // Function boundingRect()
  95. /**
  96. * 判断点是否在区域内
  97. *
  98. * @param x
  99. * @param y
  100. * @return boolean
  101. */
  102. contains(x: number, y: number): boolean {
  103. let arr = this.pointList;
  104. for (let i = 0; i < arr.length; i++) {
  105. if (SPolygonUtil.pointIn(x, y, arr[i])) {
  106. return true;
  107. }
  108. }
  109. return false;
  110. } // Function contains()
  111. /**
  112. * Item绘制操作
  113. *
  114. * @param painter painter对象
  115. */
  116. onDraw(painter: SPainter): void {
  117. super.onDraw(painter);
  118. this.pointList.forEach((t): void => {
  119. painter.drawPolygon(t);
  120. });
  121. } // Function onDraw()
  122. } // Class SGraphPolyGroupItem