Dear Sumo-Users,
we tried to access the polygon information within the C++ TraCI, as proposed in a former issue (see below):
[…]
const std::string id = polygon_ids.at(i);
const std::string type = polygon.getType(id);
const TraCIPositionVector shape = polygon.getShape(id);
[…]
Unfortunately, we obtain the following error in the SUMO-GUI (v0.32)
Error: Storage::writeUnsignedByte(): Invalid value, not in [0, 255]
Quitting (on error).
when we execute the polygon.getShape() method (see above), which is defined in TraCIAPI.cpp as follows:
// ---------------------------------------------------------------------------
// TraCIAPI::PolygonScope-methods
// ---------------------------------------------------------------------------
[…]
TraCIPositionVector
TraCIAPI::PolygonScope::getShape(const std::string& polygonID) const {
return myParent.getPolygon(CMD_GET_POLYGON_VARIABLE, VAR_SHAPE, polygonID);
}
[…]
Can you recommend how we could solve that issue?
Regards,
Marc
Von: sumo-user-bounces@xxxxxxxxxxx [mailto:sumo-user-bounces@xxxxxxxxxxx]
Im Auftrag von Jakob Erdmann
Gesendet: Mittwoch, 12. September 2018 12:44
An: Sumo project User discussions <sumo-user@xxxxxxxxxxx>
Betreff: Re: [sumo-user] Polygon coordinates via TraCI
2018-09-12 12:42 GMT+02:00 Thomas Thorn <thorn@xxxxxx>:
Hello everybody,
I am new to sumo. I use sumo 0.32 and was wondering if it is possible to get the coordinates of a polygon via TraCI.
Best regards,
Thomas
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