GTModelSignature Naming Convention Examples

94 © 2016 Open Geospatial Consortium the feature type denoted 999 followed by an underscore and the name denoted Type associated with the feature type as per Section 1.5. Level 5 LOD Character L followed by the LOD number corresponding to the Significant Size for positive levels of detail. Characters LC followed by the LOD number corresponding to the Significant Size for negative levels of detail. Note that for compatibility with version 3.0 of the standard, the name of the directory at level 1 is kept to 502_GTModelSignature even though dataset 502 has been deprecated and replaced with dataset 512 in version 3.1 of the standard.

3.4.5.1 GTModelSignature Naming Convention

Requirement 56 http:www.opengis.netspeccdbcore1.0gtmodelsignature-name The names of the GTModelSignature files SHALL adhere to the following naming convention: D512_Snnn_Tnnn_LOD_FC_FSC_MODL.xxx The following table defines each field of the file name and Table 5-9 provides the values of the Component Selectors to complete the name. Table 3-17: GTModelSignature Naming Convention Field Description D512 Character D followed by the 3-digit code assigned to the dataset Snnn Character S followed by the 3-digit Component Selector 1 Tnnn Character T followed by the 3-digit Component Selector 2 LOD This field is identical to the name of the LOD directory level 5 where the file is stored. FC Feature Code Five-character feature code as defined in Section 1.5 FSC Three-digit integer representing the feature sub-code FSC as defined in 95 © 2016 Open Geospatial Consortium Section 1.5 MODL 32-character Model Name String xxx The file type associated with the dataset. This is designated by the file extension; e.g. .tif for TIFF, .flt for OpenFlight, and so on.

3.4.5.2 Examples

The following example illustrates the directory structure that would store the signature of all geotypical buildings represented at LOD 3 and whose feature code is AL015: \CDB\GTModel\502_GTModelSignature\A_Culture\L_Misc_Feature\ 015_Building\L03\ Where \CDB\GTModel is the root of all geotypical model datasets, \502_GTModelSignature is the directory containing all feature categories, \A_Culture is the directory containing all feature subcategories of category A named Culture, \L_Misc_Feature is the directory containing all feature types of category A and subcategory L named Misc_Feature, \015_Building is the directory containing all level of details representing the signature of geotypical buildings whose feature types are 015 named Building, and \L03 is the directory containing the vector data sets representing LOD 3 of these buildings 26 . Examples of files that could be found in the above directory are: .\D512_S001_T001_L03_AL015_004_Castle.shp .\D512_S001_T001_L03_AL015_004_Castle.shx .\D512_S001_T001_L03_AL015_004_Castle.dbf .\D512_S001_T017_L03_AL015_004_Castle.dbf

3.4.6 GTModel Complete Examples