# java-vector-tile

**Repository Path**: gis_6/java-vector-tile

## Basic Information

- **Project Name**: java-vector-tile
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2024-08-08
- **Last Updated**: 2025-04-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# Java Vector Tiles

A java encoder and decoder for vector tiles according to
[Mapbox vector tile spec](https://github.com/mapbox/vector-tile-spec)

## Encode a vector tile

```java
VectorTileEncoder encoder = new VectorTileEncoder();

// Add one or more features with a layer name, a Map with attributes and a JTS Geometry. 
// The Geometry uses (0,0) in upper left and (256,256) in lower right.
encoder.addFeature("road", attributes, geometry);

// Finally, get the byte array
byte[] encoded = encoder.encode();
```

or, specifying the feature id:

```java
VectorTileEncoder encoder = new VectorTileEncoder();
encoder.addFeature("road", attributes, geometry, id);
byte[] encoded = encoder.encode();
```

## Maven

```
<repository>
    <id>ECC</id>
    <url>https://maven.ecc.no/releases</url>
</repository>

<dependency>
    <groupId>no.ecc.vectortile</groupId>
    <artifactId>java-vector-tile</artifactId>
    <version>1.3.23</version>
</dependency>
```

## Generate VectorTile.java

`VectorTile.java` is generated from `src/main/porobuf/vector_tile.proto` using the `protoc-jar-maven-plugin` plugin.
Make sure to include the folder `target/generated-sources` in your class path.

## License

[Apache License, version 2.0](http://www.apache.org/licenses/LICENSE-2.0)

## Credits

Mapbox for their [vector tile spec](https://github.com/mapbox/vector-tile-spec), 
Google for their [Protocol Buffers](https://code.google.com/p/protobuf/) and
Dr JTS and LocationTech for [JTS](https://github.com/locationtech/jts)