# Function to find all possible date/time intervals for shadow modelling OutIntersection = arcpy.GetParameterAsText(10) # shadow & bldg intersection OutShadows = arcpy.GetParameterAsText(9) # output shadow models MinInterval = arcpy.GetParameter(7) # minute interval as long (0-60)ĮnforceTime = arcpy.GetParameter(8) # minute interval as Boolean StartDate = arcpy.GetParameter(4) # starting date as datetimeĮndDate = arcpy.GetParameter(5) # ending date as datetimeĭayInterval = arcpy.GetParameter(6) # day interval as long (0-365)

InTimeZone = arcpy.GetParameterAsText(3) # time zone OutFC = arcpy.GetParameterAsText(2) # multipatch from 3D files SpatialRef = arcpy.GetParameterAsText(1) # list of GeoVRML files InFiles = arcpy.GetParameterAsText(0) # list of input features Time can also be specified by setting the EnforceTimesīoolean to True. A range of times from the start time and end Imported to a multipatch feature class for a range of datesĪnd times.

VERT_ANGLE-Angle in degrees between the earth's horizon and the sun's relative position where the horizon defines 0 degrees and 90 degrees is directly above.

AZIMUTH-Angle in degrees between true north and the perpendicular projection of the sun's relative position down to the earth's horizon.

DATE_TIME-Local date and time used to calculate sun position.

SOURCE_ID-Unique ID of the feature casting the shadow volume.

SOURCE-Name of the feature class casting the shadow volume.

The following fields will be attributed to the shadow volume features: Each shadow volume starts and ends at a vertical plane that is perpendicular to the

Light rays are considered to be parallel and travel in the direction calculated for the relative position of the sun. Shadows are modeled as closed multipatches created by extruding the input features in the direction of sunlight. Shadow volumes will not be produced if the sun is not visible for a given date and time or if the relative position of the sun is at a vertical angle of 90 degrees from the input features. Shadows modeling sunrise and sunset conditions can be made by providing only a date in the Start Date and Time and End Date and Time parameters, respectively. All input features should reside in the same locale, as relative sun position calculations are based on the position of the first feature in the first feature class.

Sun shades autocad