utilities for modpath no loading all pathlines of modpath 7

[crayfisher]

when using modpath 7, using flopy.utils.PathlineFile() and get_alldata() seems to get only first particle.

works fine for .TimeseriesFile(),

[langevin-usgs]

Can you verify that this is indeed the case by providing a minimal working example that demonstrates the problem? This notebook, https://github.com/modflowpy/flopy/blob/develop/examples/Notebooks/flopy3_Modpath7_unstructured_example.ipynb, shows that it is working properly for an unstructured grid.

[crayfisher]

I've replicated this problem using structured grid example:
https://github.com/modflowpy/flopy/blob/develop/examples/Notebooks/flopy3_Modpath7_structured_example.ipynb
https://user-images.githubusercontent.com/39174126/48371797-9f754580-e721-11e8-83c0-3727cf6a5dc9.png
checked modpath file, and it's ok, containing all pathlines, but they are not read properly with flopy.

here's even simpler example on my gitlab:
https://gitlab.com/crayfisher/modpath7_err_pathline
run_org directory contains my modflow and modpath run results

these are my python package versions, maybe that's a problem?
numpy version: 1.15.1
matplotlib version: 2.2.3
flopy version: 3.2.10

cheers

[langevin-usgs]

I ran your example and it appears to work fine for me. There are two entries of particle data in p0. Maybe you just need to update your version of Flopy to develop?

[jtwhite79]

I can confirm the issue is with the conda-forge version of flopy, the develop branch example works as expected.

[crayfisher]

I removed conda-forge version and installed development version of flopy through pip, but problem persists.
However, I tried it in python 3.6 and it works fine now.

[chenmingzhang]

Hi, i have git cloned the recent flopy (3.2.10) version and try to run the example https://github.com/modflowpy/flopy/blob/develop/examples/Notebooks/flopy3_Modpath7_unstructured_example.ipynb in ipython2.7 in Linux. in the figure about 'Plot the pathline and timeseries data' there is only one stream path rather than multiple as shown in the example.
.

p0 only shows the data for one stream rather than all streams"
p0
[rec.array([(4687.5 , 5257.8125, 100. , 0.0000000e+00, 2, 0),
(4687.5 , 5257.8125, 100. , 0.0000000e+00, 2, 0),
(4658.5693, 5250. , 100.02049, 1.0942441e+00, 2, 0),
(4625. , 5217.9546, 100.09107, 4.9948955e+00, 2, 0),
(4567.961 , 5187.5 , 100.22083, 1.2349938e+01, 2, 0),
(4562.5 , 5182.4766, 100.23977, 1.3444718e+01, 2, 0),
(4500. , 5144.677 , 100.4627 , 2.6459158e+01, 2, 0),
(4449.0166, 5125. , 100.6574 , 3.7920795e+01, 2, 0),
(4437.5 , 5118.3413, 100.71933, 4.1621235e+01, 2, 0),
(4375. , 5078.8296, 101.07293, 6.2709068e+01, 2, 0),
(4250. , 5021.0415, 101.8647 , 1.0986376e+02, 2, 0),
(4194.8276, 5000. , 102.25431, 1.3296767e+02, 2, 0),
(4125. , 4964.906 , 102.87046, 1.6963930e+02, 2, 0),
(4000. , 4911.951 , 104.07787, 2.4063026e+02, 2, 0),
(3891.2754, 4875. , 105.25636, 3.0888718e+02, 2, 0),
(3875. , 4868.77 , 105.44808, 3.1991879e+02, 2, 0),
(3750. , 4819.726 , 106.99556, 4.0823538e+02, 2, 0),
(3532.781 , 4750. , 110.09947, 5.7966925e+02, 2, 0),
(3500. , 4736.824 , 110.65601, 6.1012134e+02, 2, 0),
(3250. , 4672.2812, 115.34239, 8.5494788e+02, 2, 0),
(3113.365 , 4634.1997, 118.21202, 1.0000000e+03, 2, 0),
(3000. , 4599.1655, 120.80777, 1.1282064e+03, 2, 0),
(2563.2263, 4500. , 133.27914, 1.6948297e+03, 2, 0),
(2500. , 4480.5825, 135.68965, 1.7987966e+03, 2, 0),
(2382.4927, 4455.858 , 140.58685, 2.0000000e+03, 2, 0),
(2000. , 4361.2476, 160.1559 , 2.7395596e+03, 2, 0),
(1881.7502, 4336.963 , 167.80823, 3.0000000e+03, 2, 0),
(1500. , 4241.8906, 199.93729, 3.9775132e+03, 2, 0),
(1499.4033, 4241.7603, 200. , 3.9792417e+03, 2, 0),
(1499.4027, 4241.76 , 200.75323, 4.0000000e+03, 1, 0),
(1499.3889, 4241.759 , 220. , 4.5304209e+03, 1, 0),
(1419.2764, 4239.273 , 237.50923, 5.0000000e+03, 0, 0),
(1262.9227, 4233.964 , 278.11255, 6.0000000e+03, 0, 0),
(1124.158 , 4228.6333, 323.68115, 7.0000000e+03, 0, 0),
(1084.4944, 4226.981 , 338.86984, 7.3092246e+03, 0, 0)],
dtype=[('x', '<f4'), ('y', '<f4'), ('z', '<f4'), ('time', '<f4'), ('k', '<i4'), ('particleid', '<i4')])]
Thanks, Chenming

[langevin-usgs]

You need to be using the develop version of Flopy. Can you tell what you are using?

[crayfisher]

from memory it worked for me eventually after I switched to python 3.6

…

On Tue, 29 Jan 2019 at 13:06, langevin-usgs ***@***.***> wrote: You need to be using the develop version of Flopy. Can you tell what you are using? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#430 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AlW_7uXsl4Yeqc_XHybYQRTdhFlyJF_Sks5vH5B5gaJpZM4YY2dC> .

-- Pawel Rakowski

[chenmingzhang]

Hi Christian:
thanks for the fast response.
from mine:

cmzhang@ae429-3158 ~/flopy $ git rev-parse HEAD
1381f95
cmzhang@ae429-3158 ~/flopy $ git branch

• develop
  cmzhang@ae429-3158 ~/flopy $ ipython --version
  5.8.0
  cmzhang@ae429-3158 ~/flopy $ python --version
  Python 2.7.13
  cmzhang@ae429-3158 ~/flopy $ uname -a
  Linux ae429-3158 4.9.0-8-amd64 why are modflow parameters so confusing? #1 SMP Debian 4.9.130-2 (2018-10-27) x86_64 GNU/Linux
  cheers, chenming

[langevin-usgs]

Okay, so this is probably a problem with python, as suggested by @crayfisher. I suggest that you upgrade to Python 3.6 or newer. I've been using Python 3.7 lately with good success.

[chenmingzhang]

right, I confirm that the example runs well on python3. thanks all. Chenming