1.7. wkb.erl¶
Erlang library to convert and generate datas in OGC Well Known Binary format defined by the Open Geospatial Consortium (OGC) and described in their Simple Feature Access.
Encodings are done in big indian.
1.7.1. Tsung Exports¶
Functions exported and callable direcxtly in a Tsung’s scenario
1.7.1.1. wkb_point/1¶
Return a point with random coordinate in WKB format.
Paramaters : Tsung tuple {Pid, DynVars}
Return : string
24> wkb:wkb_point({Pid, DynVars}).
"0000000001C03FB4A8BE87B3804042B06F3D378054"
1.7.2. Other exports¶
1.7.2.1. float_to_wkb/1¶
Convert a float to OGC Well Known Binary format
Parameters : float
Return : string
79> wkb:float_to_wkb(42.14).
"404511EB851EB852"
1.7.2.2. wkb_point/2¶
1.7.2.3. wkb_linestring/1¶
Return a linestring encoded in WKB format.
Paramaters : Atrray of tuples {lat, lon}
Return : string
84> wkb:wkb_linestring([{42.5, -5.5},{135.2,5}]).
"000000000200000002C016000000000000404540000000000040140000000000004060E66666666666"