fix(modpath7): address #993 and #1053 (#1170)

closes #993 
closes #1053

flopy/modpath/mp7particledata.py

@@ -340,9 +340,17 @@ def write(self, f=None):
         d = np.recarray.copy(self.particledata)
         lnames = [name.lower() for name in d.dtype.names]
         # Add one to the kij and node indices
-        for idx in ["k", "i", "j", "node", "id"]:
+        for idx in (
+            "k",
+            "i",
+            "j",
+            "node",
+        ):
             if idx in lnames:
                 d[idx] += 1
+        # Add one to the particle id if required
+        if self.particleidoption == 0 and "id" in lnames:
+            d["id"] += 1
 
         # write the particle data
         fmt = self._fmt_string + "\n"

flopy/utils/modpathfile.py

@@ -204,7 +204,8 @@ def get_destination_data(self, dest_cells, to_recarray=True):
         Parameters
         ----------
         dest_cells : list or array of tuples
-            (k, i, j) of each destination cell (zero-based)
+            (k, i, j) of each destination cell for MODPATH versions less than
+            MODPATH 7 or node number of each destination cell. (zero based)
         to_recarray : bool
             Boolean that controls returned series. If to_recarray is True,
             a single recarray with all of the pathlines that intersect
@@ -724,7 +725,8 @@ def get_destination_pathline_data(self, dest_cells, to_recarray=False):
         Parameters
         ----------
         dest_cells : list or array of tuples
-            (k, i, j) of each destination cell (zero-based)
+            (k, i, j) of each destination cell for MODPATH versions less than
+            MODPATH 7 or node number of each destination cell. (zero based)
         to_recarray : bool
             Boolean that controls returned pthldest. If to_recarray is True,
             a single recarray with all of the pathlines that intersect
@@ -1180,7 +1182,8 @@ def get_destination_endpoint_data(self, dest_cells, source=False):
         Parameters
         ----------
         dest_cells : list or array of tuples
-            (k, i, j) or (node,) of each destination cell (zero-based)
+            (k, i, j) of each destination cell for MODPATH versions less than
+            MODPATH 7 or node number of each destination cell. (zero based)
         source : bool
             Boolean to specify is dest_cells applies to source or
             destination cells (default is False).
@@ -1630,7 +1633,8 @@ def get_destination_timeseries_data(self, dest_cells):
         Parameters
         ----------
         dest_cells : list or array of tuples
-            (k, i, j) or nodes of each destination cell (zero-based)
+            (k, i, j) of each destination cell for MODPATH versions less than
+            MODPATH 7 or node number of each destination cell. (zero based)
 
         Returns
         -------