---
title: "MaplibreGradientBuilding"
description: "Gradient 3D buildings colored by height interpolation from a building data source."
canonical_url: "https://maplibre.mhaibaraai.cn/en/docs/effects/gradient-building"
---
# MaplibreGradientBuilding

> Gradient 3D buildings colored by height interpolation from a building data source.

## Introduction

`MaplibreGradientBuilding` renders 3D buildings from the building data given by `source` / `sourceLayer`, interpolating colors between `stops` breakpoints by height; `opacity` / `minzoom` control transparency and the starting zoom level. Requires a tilted view and zoom ≥ `minzoom` (default 15).

## Usage

View buildings color-graded by height in a tilted view:

```vue [GradientBuildingExample.vue]
<template>
  <div class="h-115 w-full overflow-hidden rounded-(--ui-radius) border border-default">
    <MaplibreMap
      :options="{ style: 'https://tiles.openfreemap.org/styles/positron', center: [116.461, 39.909], zoom: 15.5, pitch: 60, bearing: -20 }"
    >
      <MaplibreGradientBuilding
        source="openmaptiles"
        source-layer="building"
        :stops="[[0, '#1e3a8a'], [80, '#0ea5e9'], [200, '#f59e0b'], [400, '#f43f5e']]"
        :opacity="0.9"
      />
    </MaplibreMap>
  </div>
</template>
```

## API

### Props

```ts
/**
 * Props for the MaplibreGradientBuilding component
 */
interface MaplibreGradientBuildingProps {
  /**
   * 数据源 id（需已由 MaplibreSource 或样式声明）
   */
  source: string;
  /**
   * 矢量瓦片中的图层名（如 OpenMapTiles 的 'building'）；GeoJSON 源省略
   */
  sourceLayer?: string | undefined;
  /**
   * 建筑高度属性名
   * @default 'render_height'
   */
  heightProperty?: string | undefined;
  /**
   * 建筑底面高度属性名
   * @default 'render_min_height'
   */
  baseProperty?: string | undefined;
  /**
   * 图层 id；省略时自动生成，变更需配合 `:key` 重建
   */
  layerId?: string | undefined;
  /**
   * 高度-颜色断点
   */
  stops?: [number, string][] | undefined;
  /**
   * 整体透明度
   * @default 0.85
   */
  opacity?: number | undefined;
  /**
   * 最小缩放级别
   * @default 15
   */
  minzoom?: number | undefined;
  /**
   * 插入到该图层之前
   */
  beforeId?: string | undefined;
}
```

## Changelog

See commit history for [src/runtime/components/effects/GradientBuilding.vue](https://github.com/mhaibaraai/movk-maplibre/commits/main/src/runtime/components/effects/GradientBuilding.vue).


## Sitemap

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