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  • ISO/IEC 18023-1:200x(E) — Table 6.184 DRM_Positional_Light
    DRM Positional Light Inherited field elements Field name Range Field data type apply to children Boolean override positional lights Boolean override infinite lights Boolean active light value Boolean radius 0 0 Float constant attenuation factor Long Float linear attenuation factor Long Float quadratic attenuation factor Long Float Field elements Field name Range Field data type None Default field values Default field values for DRM Positional Light Associated to one way inherited None Associated to one way None Associated by one way inherited None Associated by one way None Associated with two way inherited None Associated with two way None Composed of two way inherited one DRM Ambient Colour instance zero or one DRM Classification Data instance 1 one DRM Diffuse Colour instance zero or one DRM Light Source Control Link instance 2 one DRM Specular Colour instance one DRM Location 3D instance 3 Composed of two way None Composed of two way metadata inherited None Composed of two way metadata None Component of two way inherited one or more DRM Aggregate Geometry instances Component of two way None Constraints Inheritance rule for DRM Location Publishable object Clarifications 1 A DRM Classification Data component if present allows a data provider to

    Original URL path: http://standards.sedris.org/18023-1/C038442e-html/C038442e_FILES/MAIN_C038442e/Part1/DataItems/Positional_Light.html (2016-02-11)
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  • ISO/IEC 18023-1:200x(E) — Table 6.260 DRM_Spot_Light
    of the ray in radians from LIGHT DIRECTION vector then the intensity I at the point is Case 1 0 0 horizontal drop off rate 0 0 vertical drop off rate I I 0 1 0 A h horizontal drop off rate 1 0 A v vertical drop off rate Case 2 0 0 horizontal drop off rate 0 0 vertical drop off rate I I 0 1 0 A v vertical drop off rate Case 3 0 0 horizontal drop off rate 0 0 vertical drop off rate I I 0 1 0 A h horizontal drop off rate The horizontal drop off rate field specifies in radians the horizontal angular intensity distribution of the light The higher this value the more focused the light A value of 0 0 specifies a light that equally illuminates all objects within the cone of influence and instantly falls to an intensity of 0 0 at the edge of the cone of light The vertical drop off rate specifies in radians the vertical angular intensity distribution of the light The higher this value the more focused the light A value of 0 0 specifies a light that equally illuminates all objects within the cone of influence and instantly falls to an intensity of 0 0 at the edge of the cone of light Class diagram Figure 6 322 DRM Spot Light Inherited field elements Field name Range Field data type apply to children Boolean override positional lights Boolean override infinite lights Boolean active light value Boolean radius 0 0 Float constant attenuation factor Long Float linear attenuation factor Long Float quadratic attenuation factor Long Float Field elements Field name Range Field data type horizontal drop off rate Long Float vertical drop off rate Long Float Default field values Default field values for

    Original URL path: http://standards.sedris.org/18023-1/C038442e-html/C038442e_FILES/MAIN_C038442e/Part1/DataItems/Spot_Light.html (2016-02-11)
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  • ISO/IEC 18023-1:200x(E) — Table 6.136 DRM_Lobe_Data
    the light source or directional light for which the DRM Lobe Data instance is a component The component LIGHT DIRECTION vector and VERTICAL AXIS vector shall not be parallel The horizontal width field specifies the horizontal lobe width in radians measured perpendicular to the VERTICAL AXIS DRM Reference Vector component The vertical width field specifies the vertical lobe width in radians measured parallel to the VERTICAL AXIS DRM Reference Vector component Class diagram Figure 6 164 DRM Lobe Data Inherited field elements Field name Range Field data type None Field elements Field name Range Field data type horizontal width 0 0 2π Long Float vertical width 0 0 2π Long Float Default field values Default field values for DRM Lobe Data Associated to one way inherited None Associated to one way None Associated by one way inherited None Associated by one way None Associated with two way inherited None Associated with two way None Composed of two way inherited None Composed of two way exactly two DRM Reference Vector instances 1 Composed of two way metadata inherited None Composed of two way metadata None Component of two way inherited None Component of two way zero or more DRM Directional Light

    Original URL path: http://standards.sedris.org/18023-1/C038442e-html/C038442e_FILES/MAIN_C038442e/Part1/DataItems/Lobe_Data.html (2016-02-11)
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  • ISO/IEC 18023-1:200x(E) — Table 6.126 DRM_Light_Rendering_Behaviour
    type of light where type of light refers to its shape direction or apparent motion Class diagram Figure 6 151 DRM Light Rendering Behaviour Inherited field elements Field name Range Field data type None Field elements Field name Range Field data type None Default field values Default field values for DRM Light Rendering Behaviour Associated to one way inherited None Associated to one way None Associated by one way inherited

    Original URL path: http://standards.sedris.org/18023-1/C038442e-html/C038442e_FILES/MAIN_C038442e/Part1/DataItems/Light_Rendering_Behaviour.html (2016-02-11)
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  • ISO/IEC 18023-1:200x(E) — Table 6.54 DRM_Directional_Light_Behaviour
    L that has a vector type field value of LIGHT DIRECTION The up axis of the light is specified by the DRM Reference Vector component of L that has a vector type field value of VERTICAL AXIS The VERTICAL AXIS vector specifies the rotational orientation of the light around the LIGHT DIRECTION vector These provide the necessary information to position the light in the currently applicable SRF orient the light with respect to its VERTICAL AXIS vector and identify the direction in which the light is pointing The lobe shape is centred horizontally and vertically around the LIGHT DIRECTION vector with origin at the location specified by the DRM Location component Directional lights can have both a primary and a secondary colour These are specified by the DRM Colour components of the parent DRM Geometry Representation instance that have colour mapping values of PRIMARY LIGHT RENDERING BEHAVIOUR and SECONDARY LIGHT RENDERING BEHAVIOUR respectively Class diagram Figure 6 63 DRM Directional Light Behaviour Inherited field elements Field name Range Field data type None Field elements Field name Range Field data type None Default field values Default field values for DRM Directional Light Behaviour Associated to one way inherited None Associated to

    Original URL path: http://standards.sedris.org/18023-1/C038442e-html/C038442e_FILES/MAIN_C038442e/Part1/DataItems/Directional_Light_Behaviour.html (2016-02-11)
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  • ISO/IEC 18023-1:200x(E) — Table 6.164 DRM_Moving_Light_Behaviour
    Light Behaviour Inherited field elements Field name Range Field data type None Field elements Field name Range Field data type speed Long Float delay Long Float Default field values Default field values for DRM Moving Light Behaviour Associated to one way inherited None Associated to one way None Associated by one way inherited None Associated by one way None Associated with two way inherited None Associated with two way None

    Original URL path: http://standards.sedris.org/18023-1/C038442e-html/C038442e_FILES/MAIN_C038442e/Part1/DataItems/Moving_Light_Behaviour.html (2016-02-11)
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  • ISO/IEC 18023-1:200x(E) — Table 6.228 DRM_Rotating_Light_Behaviour
    values Default field values for DRM Rotating Light Behaviour Associated to one way inherited None Associated to one way None Associated by one way inherited None Associated by one way None Associated with two way inherited None Associated with two way None Composed of two way inherited None Composed of two way None Composed of two way metadata inherited None Composed of two way metadata None Component of two way

    Original URL path: http://standards.sedris.org/18023-1/C038442e-html/C038442e_FILES/MAIN_C038442e/Part1/DataItems/Rotating_Light_Behaviour.html (2016-02-11)
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  • ISO/IEC 18023-1:200x(E) — Table 6.267 DRM_Strobing_Light_Behaviour
    initial delay before the strobing behaviour is to begin A separate delay for each light allows a series of lights to appear asynchronous Class diagram Figure 6 333 DRM Strobing Light Behaviour Inherited field elements Field name Range Field data type None Field elements Field name Range Field data type period 0 0 Long Float delay 0 0 Long Float Default field values Default field values for DRM Strobing Light Behaviour Associated to one way inherited None Associated to one way None Associated by one way inherited None Associated by one way None Associated with two way inherited None Associated with two way None Composed of two way inherited None Composed of two way None Composed of two way metadata inherited None Composed of two way metadata None Component of two way inherited one or more DRM Light Rendering Properties instances Component of two way None Constraints Publishable object Clarifications None Example s Consider a model of an airport in which the data provider wishes to place a strobing light string along a runway The light emitted is negligible at an ordinary viewing range as depicted in Figure 6 334 Figure 6 334 DRM Strobing Light Behaviour example Since the

    Original URL path: http://standards.sedris.org/18023-1/C038442e-html/C038442e_FILES/MAIN_C038442e/Part1/DataItems/Strobing_Light_Behaviour.html (2016-02-11)
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