这样不对,这是获取的栅格数据的外边界,我需要获取栅格数据中有效数据的边界
时间: 2024-03-02 08:48:20 浏览: 14
非常抱歉,我理解错误了你的要求。获取栅格数据中有效数据的边界可以使用以下代码:
1. 加载栅格数据
```java
File file = new File("path/to/raster.tif");
AbstractGridFormat format = GridFormatFinder.findFormat(file);
GridCoverage2D coverage = format.read(file, null);
```
2. 获取有效数据的范围
```java
PlanarImage image = (PlanarImage) coverage.getRenderedImage();
Rectangle bounds = image.getBounds();
```
3. 将范围转换为线要素
```java
GeometryFactory geometryFactory = JTSFactoryFinder.getGeometryFactory();
Coordinate[] coordinates = new Coordinate[5];
coordinates[0] = new Coordinate(bounds.getMinX(), bounds.getMinY());
coordinates[1] = new Coordinate(bounds.getMinX(), bounds.getMaxY());
coordinates[2] = new Coordinate(bounds.getMaxX(), bounds.getMaxY());
coordinates[3] = new Coordinate(bounds.getMaxX(), bounds.getMinY());
coordinates[4] = coordinates[0];
LineString lineString = geometryFactory.createLineString(coordinates);
```
这样就能够获取栅格数据中有效数据的边界线要素了。