antv-l7/docs/api/line_layer/wall.zh.md

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---
title: 地理围墙
order: 4
---
`markdown:docs/common/style.md`
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地理围墙在原有线图层的基础上赋予了高度的概念,其他的使用和普通的线图保持一致
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## 使用
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```javascript
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import { LineLayer } from '@antv/l7';
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```
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<img width="60%" style="display: block;margin: 0 auto;" alt="案例" src='https://gw.alipayobjects.com/mdn/rms_816329/afts/img/A*mLfxTb4mI6AAAAAAAAAAAAAAARQnAQ'>
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[在线案例](../../../examples/line/wall#hangzhou_wall)
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### shape
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shape 设置成 wall 即可
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`markdown:docs/api/line_layer/features/linear.zh.md`
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🌟 目前渐变色的方向为垂直向上
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`markdown:docs/api/line_layer/features/animate.zh.md`
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`markdown:docs/api/line_layer/features/texture.zh.md`
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🌟 地理围栏支持了新的样式参数 iconStepCount
- 纹理间隔只有在开启纹理的时候才会生效
- 纹理间隔支持配置纹理之间的间距
- 纹理间隔需要和纹理间距配合使用
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```javascript
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.style({
lineTexture: true, // 开启线的贴图功能
iconStep: 40, // 设置贴图纹理的间距
iconStepCount: 4
})
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```
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<img width="80%" style="display: block;margin: 0 auto;" alt="案例" src='https://gw.alipayobjects.com/mdn/rms_816329/afts/img/A*3f8ORIbjJmkAAAAAAAAAAAAAARQnAQ'>
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### heightfixed
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wall 支持了固定高度配置 heightfixed
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```javascript
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.style({
heightfixed: true // 默认为 false开启后实际世界高度不变注意调整尺寸
})
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```
`markdown:docs/common/layer/base.md`