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3.4.1.2 GTModelGeometry Level of Detail Naming Convention
Requirement 47
http:www.opengis.netspeccdbcore1.0gtmodelgeometry-lod-name
The files of the GTModelGeometry Level of Detail dataset SHALL be stored in level 5 of its directory structure. The names of the files SHALL adhere to the following naming
convention:
D510_Snnn_Tnnn_LOD_FeatureCode_FSC_MODL.flt
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 3-4: GTModelGeometry Level of Detail Naming Convention
Field Description
D510 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.
FeatureCode Five-character feature code as defined in Section 1.5
FSC Three-digit integer representing the feature sub-code FSC
as defined in Section 1.5 MODL
32-character Model Name String flt
The file type associated with the dataset currently an OpenFlight file
3.4.1.3 GTModelDescriptor Naming Convention
Requirement 48
http:www.opengis.netspeccdbcore1.0gtmodeldescriptor-name
The files of the GTModelDescriptor dataset SHALL be stored in level 4 of the 5-level directory structure presented above. The names of the files SHALL adhere to the
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following naming convention:
D503_Snnn_Tnnn_FeatureCode_FSC_MODL.xml
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 3-5: GTModelDescriptor Naming Convention
Field Description
D503 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
FeatureCode Five-character feature code as defined in Section 1.5
FSC Three-digit integer representing the feature sub-code FSC as
defined in Section 1.5 MODL
32-character Model Name String xml
The file type associated with the dataset
3.4.1.4 Examples
The following example illustrates the directory structure that would store the entry file of all geotypical buildings with a feature code of AL015:
\CDB\GTModel\500_GTModelGeometry\A_Culture\L_Misc_Feature\ 015_Building\
Where \CDB\GTModel is the root of all geotypical model datasets, \500_GTModelGeometry is the directory containing all feature code categories, \A_Culture is the directory containing all
feature code 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 OpenFlight files representing geotypical buildings whose feature types are 015 named Building.
Examples of files found in the above directory are:
.\D500_S001_T001_AL015_004_Castle.flt .\D500_S001_T001_AL015_015_School.flt
.\D500_S001_T001_AL015_021_Garage.flt .\D500_S001_T001_AL015_037_Fire_Station.flt
.\D500_S001_T001_AL015_050_Church.flt
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Note that all filenames start with a common portion D500_S001_T001_AL015 and that only their FSC and MODL portions vary.
If the castle above AL015_004_Castle is represented with 3 levels of details, say LOD 3, 5 and 8, they would be stored in .\L03\, .\L05\, and .\L08\ giving file names such as these:
.\L03\D510_S001_T001_L03_AL015_004_Castle.flt .\L05\D510_S001_T001_L05_AL015_004_Castle.flt
.\L08\D510_S001_T001_L08_AL015_004_Castle.flt
Again, the descriptor associated with the same castle AL015_004_Castle would be found in this file:
.\D503_S001_T001_AL015_004_Castle.xml
3.4.2 GTModel Directory Structure 2: Texture, Material, and CMT