STACTA-时空资产目录平铺资产

3.3 新版功能.

司机简称

STACTA

Driver built-in by default

This driver is built-in by default

This driver supports opening JSON files following the Spatio-Temporal Asset Catalog Tiled Assets specification. Such JSON file references tiles (also called metatiles), split from a potentially big dataset according to a tiling scheme, with several zoom levels. The driver provides a single raster view, with overviews, of the dataset described by the JSON file. The driver supports metatiles of arbitrary size.

开放语法

STACTA数据集/子数据集可以使用以下语法之一进行访问:

  • filename.json :本地文件

  • STACTA:"https://example.com/filename.json" :远程文件

  • STACTA:"filename.json":my_asset :指定本地/远程文件的资产

  • STACTA:"filename.json":my_asset:my_tms :指定本地/远程文件的资源和平铺方案

The root of the JSON file must be of type Feature.

打开选项

支持以下打开选项:

  • WHOLE_METATILE =YES/NO。如果设置为YES,metatiles将完全下载(到内存中)。否则,默认情况下,如果metatiles大于阈值,则将以分段方式访问它们。

  • SKIP_MISSING_METATILE =YES/NO。如果设置为YES,则将跳过缺少的metatile而不会出错,并且数据集中的相应区域将填充nodata值,如果没有nodata值,则填充为零。也可以使用 GDAL_STACTA_SKIP_MISSING_METATILE 配置选项。

子数据集

如果STACTA JSON文件包含多个资产模板和/或平铺方案,驱动程序将返回子数据集名称列表,以打开每个可能的子数据集。

驱动程序功能

Supports VirtualIO

This driver supports virtual I/O operations (/vsimem/, etc.)

也见