MModel Library Datasets CDB Datasets

155 © 2016 Open Geospatial Consortium Polarization Type CS2 Description Instance Attribute Class Attribute 1 17 LINEAR Polarization 2 18 CIRCULAR Polarization 3 19 ELLIPTICAL Polarization 4 20 SINGLE HH Polarization 5 21 SINGLE HV Polarization 6 22 SINGLE VV Polarization 7 23 SINGLE VH Polarization 8 24 DUAL HH-HV Polarization 9 25 DUAL VV-VH Polarization 10 26 DUAL HH-VV Polarization 11 27 ALTERNATING HH-HV Polarization 12 28 ALTERNATING VV-VH Polarization 13 29 POLARIMETRIC HH Polarization 14 30 POLARIMETRIC VV Polarization 15 31 POLARIMETRIC HV Polarization 16 32 POLARIMETRIC VH Polarization

5.5 MModel Library Datasets

Table 5-10 provides provide the component selector values associated with all Mmodel datasets. Table 5-10: Component Selectors for Mmodel Datasets CS1 CS2 File Extension Component Name Component Description Dataset 600, MmodelGeometry See note 1 below 001..999 001..999 .flt Geometry Files containing the geometry of Mmodels as described in Chapter 6. Dataset 601, MmodelTexture - - .rgb Texture Individual base and subordinate textures applied on model geometry, see the complete list in section 5.3, CDB Model Textures. Dataset 603, MmodelDescriptor 001 001 .xml Descriptor Provides the metadata associated with a Mmodel. See section 6.14, Metadata, for a description of the content. NOTE: The MmodelDescriptor includes a Composite Material Table for the exclusive use by the MmodelGeometry dataset. This CMT is not to be confused with the MModelCMT dataset below. Dataset 604, MmodelMaterial 001 001..255 .tif Composite Material Index Each texel is an index into the Composite Material Table dataset 605. Component selector 2 is the layer number. 002 001..254 .tif Composite Each texel indicates the proportion between 0.0 156 © 2016 Open Geospatial Consortium Material Mixture and 1.0 of the composite material found in the corresponding material layer. Component Selector 2 is the layer number. When the texels are of integral types, they are scaled to the range 0.0 to 1.0. Dataset 605, MModelCMT 001 001 .xml Composite Material Table This is the composite material table for use with MmodelMaterial dataset. Its content is described in section 2.5.2.2, Composite Material Tables CMT. Dataset 606, MmodelSignature See notes 2 and 3 below 001..999 001..016 .shp .shx .dbf RCS Signature The encoding of the Radar Cross Section of a moving model is described in Volume 5 of this standard. 017..032 .dbf RCS Class Attributes The class-level attributes associated with the RCS Signature file as described in Volume 5 of this standard. Note 1: For the MmodelGeometry dataset, the geometry of a moving model can be made of one or more parts, each stored in one or more files depending on how complex a part is. The value of CS1 represents the part number. A Moving Model has at least one part, the model itself that is also used as a master file for all the other parts when applicable. This is part number 1. Other parts are numbered sequentially. An example of an extra part is a removable external fuel tank. The value of CS2 is the file number. This number is used when the complexity of a part requires using more than one file. The file number starts with 1. NOTE: A part that references external files does it through OpenFlight Xref nodes. Note 2: For MmodelSignature dataset, CS1 refers to the “RCS Frequency” and is used to indicate the range of frequencies in MegaHertz the dataset was generated for. The range is the set of frequencies from 10 CS1-1 MHz without exceeding 10 CS1 MHz. Note 3: For MmodelSignature datasets, CS2 refers to the “RCS Polarization Type” and is used to indicate how the electromagnetic field is polarized at transmission and reception by typical Radar. The value can range from 1 to 16 for the instance-level attributes of polarizations and from 17 to 32 for the class-level attributes of polarizations. 157 © 2016 Open Geospatial Consortium Polarization Type CS2 Description Instance Attribute Class Attribute 1 17 LINEAR Polarization 2 18 CIRCULAR Polarization 3 19 ELLIPTICAL Polarization 4 20 SINGLE HH Polarization 5 21 SINGLE HV Polarization 6 22 SINGLE VV Polarization 7 23 SINGLE VH Polarization 8 24 DUAL HH-HV Polarization 9 25 DUAL VV-VH Polarization 10 26 DUAL HH-VV Polarization 11 27 ALTERNATING HH-HV Polarization 12 28 ALTERNATING VV-VH Polarization 13 29 POLARIMETRIC HH Polarization 14 30 POLARIMETRIC VV Polarization 15 31 POLARIMETRIC HV Polarization 16 32 POLARIMETRIC VH Polarization

5.6 Tiled Raster Datasets