esri/symbols/SimpleMarkerSymbol 点符号

最新推荐文章于 2021-05-27 16:11:18 发布

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最新推荐文章于 2021-05-27 16:11:18 发布

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分类专栏： ArcGIS API for JavaScript

本文链接：https://blog.youkuaiyun.com/ScapeD/article/details/81780032

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本文介绍如何使用AMD模块加载Esri的SimpleMarkerSymbol，该符号用于在地图上绘制点或多点。提供了构造函数、常量、属性及方法等详细信息。

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[ AMD模块要求 ]

require （[ “esri / symbols / SimpleMarkerSymbol” ]，function （SimpleMarkerSymbol ）{ / * code goes here * / }）;

描述

标记符号用于在图形图层上绘制点和多点。SimpleMarkerSymbol用于将点显示为简单形状，例如圆形。此外，符号可以有一个可选的轮廓，由线符号（SimpleLineSymbol）定义。

构造函数

名称	简述
new SimpleMarkerSymbol()	创建一个空的点符号对象（无样式）
new SimpleMarkerSymbol(style, size, outline, color)	通过参数创建一个点符号对象
new SimpleMarkerSymbol(json)	使用JSON创建一个点符号对象

常量

Name	Description
`STYLE_CIRCLE`	圆符号
`STYLE_CROSS`	The marker is a cross.
`STYLE_DIAMOND`	The marker is a diamond.
`STYLE_PATH`	The marker is a shape defined using an SVG Path string. See also the `setPath` method.
`STYLE_SQUARE`	The marker is a square.
`STYLE_X`	The marker is a diagonal cross.

属性

名称	类型	简述
angle	`Number`	The angle of the marker.
color	`Color`	Symbol color.
outline	`SimpleLineSymbol`	Outline of the marker.
size	`Number`	Size of the marker in pixels.
style	`String`	The marker style.
type	`String`	The type of symbol.
xoffset	`Number`	The offset on the x-axis in pixels.
yoffset	`Number`	The offset on the y-axis in pixels.

方法

Name	Return type	Summary
setAngle(angle)	`MarkerSymbol`	Rotates the symbol clockwise around its center by the specified angle.
setColor(color)	`Symbol`	Sets the symbol color.
setOffset(x, y)	`MarkerSymbol`	Sets the x and y offset of a marker in screen units.
setOutline(outline)	`SimpleMarkerSymbol`	Sets the outline of the marker symbol.
setPath(path)	`SimpleMarkerSymbol`	Sets the marker shape to the given path string and switches the marker style to STYLE_PATH.
setSize(size)	`MarkerSymbol`	Sets the size of a marker in pixels.
setStyle(style)	`SimpleMarkerSymbol`	Sets the marker symbol style.
toJson()	`Object`	Converts object to its ArcGIS Server JSON representation.

构造函数详细信息

require([
  "esri/symbols/SimpleMarkerSymbol", ... 
], function(SimpleMarkerSymbol, ... ) {
  var sms = new SimpleMarkerSymbol();
  ...
});