I'm working on a stormtracking project, and I realized that the longitude sign of some values in my GeoPandas dataframe are wrong; i.e. I need negative longitudes instead of positive ones.

When I trace my storm tracks, I have an ugly horizontal line (the red one) which can be explained by a change in the sign of longitude in geometry.linestring. 

For example: 

[![Stormtracking][1]][1]


My GeoDataFrame looks like:
 
```
	DEBUT	 MEMBER FIN	       ID	VORT	PRES	CIRC	       geometry
11	2020112415	0	2020112418	49	78.0	952.88	0.0	LINESTRING (-175 60, -174.75 61.5)
12	2020112418	0	2020112421	49	80.0	950.16	0.0	LINESTRING (-174.75 61.5, -175.25 62.5)
13	2020112421	0	2020112500	49	81.0	948.5	0.0	LINESTRING (-175.25 62.5, -176.5 63.5)
14	2020112500	0	2020112503	49	81.0	946.03	0.0	LINESTRING (-176.5 63.5, -177.75 64)
15	2020112503	0	2020112506	49	79.0	945.21	0.0	LINESTRING (-177.75 64, -179.5 64.25)
16	2020112506	0	2020112509	49	77.0	945.48	0.0	LINESTRING (-179.5 64.25, 178.75 64.5)
```

Then I'm trying to change the last row with spent many hours on it:

``` 
16	2020112506	0	2020112509	49	77.0	945.48	0.0	LINESTRING (-179.5 64.25, 178.75 64.5)
```
Is there any function in GeoPandas to easily manipulate the coordinates? 

I'm turning around ... here's my last attempt to modify longitudes:

```
def swap2(x):
    coords = list(x.coords)
    coords = [Point(-t[0], t[1]) for t in coords] 
    return LineString(coords)

tempete=tempete.geometry.map(swap2) 
```


  [1]: https://i.sstatic.net/v5Pau.png