Changes between Version 64 and Version 65 of rfc24_progressive_data_support
- Timestamp:
- Apr 8, 2009, 4:50:49 PM (15 years ago)
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rfc24_progressive_data_support
v64 v65 62 62 63 63 1. GDALGetDatasetDriver 64 Fetch the driver to which this dataset relates.64 Fetch the driver to which this dataset relates. 65 65 1. Open 66 If the filename contained in the GDALOpenInfo object has a case insensitive URI scheme of jpip or jpips the JPIPKAKDataset is created and initialised, otherwise NULL is returned.66 If the filename contained in the GDALOpenInfo object has a case insensitive URI scheme of jpip or jpips the JPIPKAKDataset is created and initialised, otherwise NULL is returned. 67 67 1. Initialize 68 Initialisation involves making an initial connection to the JPIP Server to establish a session and to retrieve the initial metadata about the image (ref. JPIP Sequence Diagram). 68 Initialisation involves making an initial connection to the JPIP Server to establish a session and to retrieve the initial metadata about the image (ref. JPIP Sequence Diagram). 69 If the connection fails, the function returns false and the Open function returns NULL indicating that opening the dataset with this driver failed. 69 70 70 If the connection fails, the function returns false and the Open function returns NULL indicating that opening the dataset with this driver failed.71 If the connection is successful, then subsequent requests to the JPIP server are made to retrieve all the available metadata about the image. Metadata items are set using the GDALMajorObject->SetMetadataItem in the "JPIP" domain. 71 72 72 If the connection is successful, then subsequent requests to the JPIP server are made to retrieve all the available metadata about the image. Metadata items are set using the GDALMajorObject->SetMetadataItem in the "JPIP" domain. 73 74 If the metadata returned from the server includes GeoJP2 UUID box, or a GMLJP2 XML box then this metadata is parsed and sets the geographic metadata of this dataset. 73 If the metadata returned from the server includes GeoJP2 UUID box, or a GMLJP2 XML box then this metadata is parsed and sets the geographic metadata of this dataset. 75 74 1. GDALGetMetadata 76 C API to JPIPKAKDataset->GetMetadata75 C API to JPIPKAKDataset->GetMetadata 77 76 1. GetMetadata 78 77 returns metadata for the "JPIP" domain, keys are "JPIP_NQUALITYLAYERS", "JPIP_NRESOLUTIONLEVELS", "JPIP_NCOMPS" and "JPIP_SPRECISION"