在此页

• 句法
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

DOMPoint 接口的 w property holds the point's perspective value, w, for a point in space.

句法

var perspective = DOMPoint.w;
					

值

A double-precision floating-point value indicating the w perspective value for the point. This value is unrestricted , meaning that it is allowed to be infinite or invalid (that is, its value may be NaN or ±Infinity ). The default is 1.0.

规范

规范	状态	注释
Geometry Interfaces Module Level 1 The definition of 'w' in that specification.	候选推荐	初始定义

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
w	Chrome 61	Edge 79	Firefox 31	IE No	Opera 48	Safari 10.1	WebView Android 61	Chrome Android 61	Firefox Android 31	Opera Android 45	Safari iOS 10.3	Samsung Internet Android 8.0

图例

完整支持

完整支持

不支持

不支持

另请参阅

• The other coordinate properties: x , y ，和 z .

元数据

• 最后修改： Sep 4, 2019

相关话题

1. DOM (文档对象模型)
2. DOMPoint
3. 构造函数

   1. DOMPoint()
4. 特性

   1. w
   2. x
   3. y
   4. z
5. 方法

   1. fromPoint()
6. 继承：

   1. DOMPointReadOnly
7. DOM 相关页面

   1. AbortController
   2. AbortSignal
   3. AbstractRange
   4. Attr
   5. ByteString
   6. CDATASection
   7. CSSPrimitiveValue
   8. CSSValue
   9. CSSValueList
   10. CharacterData
   11. ChildNode
   12. 注释
   13. CustomEvent
   14. DOMConfiguration
   15. DOMError
   16. DOMErrorHandler
   17. DOMException
   18. DOMImplementation
   19. DOMImplementationList
   20. DOMImplementationRegistry
   21. DOMImplementationSource
   22. DOMLocator
   23. DOMObject
   24. DOMParser
   25. DOMPointInit
   26. DOMPointReadOnly
   27. DOMRect
   28. DOMString
   29. DOMTimeStamp
   30. DOMTokenList
   31. DOMUserData
   32. Document
   33. DocumentFragment
   34. DocumentType
   35. 元素
   36. ElementTraversal
   37. Entity
   38. EntityReference
   39. 事件
   40. EventTarget
   41. HTMLCollection
   42. MutationObserver
   43. 节点
   44. NodeFilter
   45. NodeIterator
   46. NodeList
   47. NonDocumentTypeChildNode
   48. ProcessingInstruction
   49. PromiseResolver
   50. 范围
   51. StaticRange
   52. 文本
   53. TextDecoder
   54. TextEncoder
   55. TimeRanges
   56. TreeWalker
   57. TypeInfo
   58. USVString
   59. UserDataHandler
   60. XMLDocument