Create Global Lines of Sight

creates LoS that does not end at target point but goes beyond it and ends at extent of the surface used to define LoS

Description

This tool is basically the same as Create Lines of Sight but creates LoS that does not end at target point but goes beyond it and ends at extent of the surface used to define LoS

Tool parameters

Parameter name	Parameter type	Description
Surface	raster	surface on which the LoS are determined.
Observer points	features - points	locations of observing points.
Observer points offset	field - double	field of the layer Observer points that has data type Double. The parameter specifies vertical offset of the observer from the surface.
Target points	features - points	locations of target points.
Target points offset	field - double	field of the layer Target point that has data type Double. The parameter specifies vertical offset of the observer from the surface.
Sampling distance	numeric value	value in units specified by Surface coordinate system that determines how often the points are placed on LoS. Default value is the same as cellsize of Surface.
Output feature layer	features - lines	output layer.

Outputs

Line feature class with lines-of-sight, that has Z-dimension. Specific fields are OID_OBSERV, observ_offset, OID_TARGET and target_offset which are necessary for further analyses. The geometry store coordinates (X,Y and Z) purely from the surface without the offsets which are stored in fields.

Since the global LoS does not end at the target point two more fields are necessary to store position of target point on the LoS. Fields target_x and target_y store coordinates of the target point for LoS and are necessary for further calculations.

Tool screenshot