Hi everyone,
i am trying to run a simulation script and having this
error while the script is run in ns-2. can anyone tell me why this error is
coming. the simulation script is attached with this email. the error is
assertion failed at mobilenode.cc
ns: common/mobilenode.cc:409: int MobileNode::set_destination(double, double,
double): Assertion `initialized()' failed.
the funcion looks like
////////////////////////////////////////////////////////////////////////////////////////
int
MobileNode::set_destination(double x, double y, double s)
{
assert(initialized());//////////////////////////////////////////////////////////////////----->the
problem is here ////see the initialized function below
if(x >= T_->upperX() || x <= T_->lowerX())
return -1;
if(y >= T_->upperY() || y <= T_->lowerY())
return -1;
update_position(); // figure out where we are now
destX_ = x;
destY_ = y;
speed_ = s;
dX_ = destX_ - X_;
dY_ = destY_ - Y_;
dZ_ = 0.0; // this isn't used, since flying isn't allowed
double len;
if (destX_ != X_ || destY_ != Y_) {
// normalize dx, dy to unit len
len = sqrt( (dX_ * dX_) + (dY_ * dY_) );
dX_ /= len;
dY_ /= len;
}.....................................................
//////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////
inline int initialized() {
return (T_ && log_target_ &&
----------->this function is not giving the required output
X_ >= T_->lowerX() && X_ <= T_->upperX() &&
Y_ >= T_->lowerY() && Y_ <= T_->upperY());
}
////////////////////////////////////////////////////////////////////////////////////////////
can anyone tell me how to fix this problem. many thanks in advance ...
bye
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