OGU4J - OpenGIS Utils for Java

To convert a Shapefile to GeoJSON and reproject it in Java, use the OGU4J unified GIS toolkit to read, transform coordinate systems, and write output across formats. It abstracts GeoTools and GDAL complexities into a consistent API.

Yes, you can use GeoTools and GDAL together for geometry operations in Java through a dual-engine architecture. This approach abstracts underlying GIS libraries to perform over 60 types of geometric analyses and transformations efficiently.

The best way to handle PostGIS and FileGDB data access in Java is using a unified GIS toolkit that provides consistent read and write APIs. This abstracts away complexities of underlying libraries like ESRI Geometry API and GeoTools.

Java supports CGCS2000 coordinate system transformations through specialized GIS toolkits utilizing GeoTools referencing. This enables easy handling and transformation of coordinate reference systems for geospatial data processing.

To perform complex geometry buffering on geospatial features in Java, utilize a unified GIS toolkit supporting advanced geometry operations. It can buffer features by specified distances while managing coordinate transformations across formats.

Using a unified API instead of directly calling JTS and ESRI geometry libraries simplifies complex GIS data operations by providing a consistent interface. This avoids dealing with disparate library complexities for format reading, writing, and processing.