Plotting: Array dims not matching, Reporting module: LoadCombo not being detected

[OjjoJR]

Describe the bug
Using the example:
Examples/Simple Beam - Point Load.py

There are 2 bugs:

Bug 1

Pynite/Examples/Simple Beam - Point Load.py

Line 57 in 04ab074

simple_beam.members['M1'].plot_shear('Fy', '1.2D+1.6L')

produces the following error:

Traceback (most recent call last):
  File "[removed]", line 57, in <module>
    simple_beam.members['M1'].plot_shear('Fy', '1.2D+1.6L')
  File "[removed]\site-packages\Pynite\PhysMember.py", line 253, in plot_shear
    x_submember, V_submember = submember.shear_array(Direction, n_points, combo_name)
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "[removed]\site-packages\Pynite\Member3D.py", line 965, in shear_array
    return self._extract_vector_results(self.SegmentsZ, x_array, 'shear')
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "[removed]\site-packages\Pynite\Member3D.py", line 2278, in _extract_vector_results
    return vstack((x_array2, hstack(segment_results)))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "[removed]\site-packages\numpy\_core\shape_base.py", line 292, in vstack
    return _nx.concatenate(arrs, 0, dtype=dtype, casting=casting)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: all the input array dimensions except for the concatenation axis must match exactly, but along dimension 1, the array at index 0 has size 10 and the array at index 1 has size 20

Bug 2

I commented out the simple_beam.members['M1'].plot_ items, to try and use the reporting functionality.

Pynite/Examples/Simple Beam - Point Load.py

Line 80 in 04ab074

Reporting.create_report(simple_beam, output_filepath='./Pynite Report.pdf', node_table=False, plate_table=False, plate_corner_forces=False, plate_center_forces=False, plate_corner_membrane=False, plate_center_membrane=False)

produces the following error:

Traceback (most recent call last):
  File "[removed]", line 80, in <module>
    Reporting.create_report(simple_beam, output_filepath=Path('./Pynite Report.pdf'), node_table=False, plate_table=False, plate_corner_forces=False, plate_center_forces=False, plate_corner_membrane=False, plate_center_membrane=False)
  File "[removed]\site-packages\Pynite\Reporting.py", line 68, in create_report
    HTML = template.render(**kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "[removed]\site-packages\jinja2\environment.py", line 1295, in render
    self.environment.handle_exception()
  File "[removed]\site-packages\jinja2\environment.py", line 942, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "[removed]\site-packages\Pynite\Report_Template.html", line 210, in top-level template code
    <td>{{ "%.4g" | format(node.RxnFX[combo]) }}</td>
^^^^^^^^^
  File "[removed]\site-packages\jinja2\filters.py", line 1043, in do_format
    return soft_str(value) % (kwargs or args)
           ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
jinja2.exceptions.UndefinedError: dict object has no element <Pynite.LoadCombo.LoadCombo object at [memory address]>

To Reproduce
run Examples/Simple Beam - Point Load.py, with and without the simple_beam.members['M1'].plot_ items.

Expected behavior
plotting and reporting

Additional context
I'm guessing recent updates have changed the member arrays, affecting plotting. I'm not sure why the jinja report is not accessing load combinations properly, however.

Thanks for the help!

[JWock82]

Which version are you using? I recently made changes to address a bug relating to array results.

[OjjoJR]

@JWock82 - Using version 1.1.0

[JWock82]

I think I’ve got this issue already fixed in the development version. I’ll issue v1.2.0 here soon which will have this fixed.

[OjjoJR]

Thanks! Is the reporting module error in that update as well? I am not super sure about the source for that one

[OjjoJR]

@JWock82 I found the source of this error, mentioned in the original issue: jinja2.exceptions.UndefinedError: dict object has no element <Pynite.LoadCombo.LoadCombo object at [memory address]>

model.load_combos.values() in this line should be changed to model.load_combos.keys(), as the node values dicts and member value access methods use the load combination keys instead of the actual load combo class objects.

Pynite/Pynite/Reporting.py

Line 65 in 0a6b11d

kwargs['load_combos'] = model.load_combos.values()

Pynite/Pynite/Report_Template.html

Line 285 in 0a6b11d

<td>{{ "%.4g" | format(member.axial(0, combo)) }}</td>

[amole-arup]

I also am getting this error on trying to generate a report with the "Example of a basic 2D moment frame with gravity and lateral loads". It also goes away when I switch that line to kwargs['load_combos'] = model.load_combos.keys():

# Import the reporting module
from Pynite import Reporting
from pathlib import Path

# Create the report
Reporting.create_report(frame, output_filepath=Path('./SpaceFrameReport.pdf'))

---------------------------------------------------------------------------
UndefinedError                            Traceback (most recent call last)
Cell In[17], line 6
      3 from pathlib import Path
      5 # Create the report
----> 6 Reporting.create_report(frame, output_filepath=Path('./SpaceFrameReport.pdf'))

File ~/miniforge3/envs/pyNiteFEA/lib/python3.11/site-packages/Pynite/Reporting.py:68, in create_report(model, output_filepath, **kwargs)
     65 kwargs['load_combos'] = model.load_combos.values()
     67 # Create the report HTML using jinja2
---> 68 HTML = template.render(**kwargs)
     70 # Convert the HTML to pdf format using PDFKit
     71 # Note that wkhtmltopdf must be installed on the system, and included on the system's PATH environment variable for PDFKit to work
     72 pdfkit.from_string(HTML, output_filepath, css=path / './MainStyleSheet.css')

File ~/miniforge3/envs/pyNiteFEA/lib/python3.11/site-packages/jinja2/environment.py:1295, in Template.render(self, *args, **kwargs)
   1293     return self.environment.concat(self.root_render_func(ctx))  # type: ignore
   1294 except Exception:
-> 1295     self.environment.handle_exception()

File ~/miniforge3/envs/pyNiteFEA/lib/python3.11/site-packages/jinja2/environment.py:942, in Environment.handle_exception(self, source)
    937 """Exception handling helper.  This is used internally to either raise
    938 rewritten exceptions or return a rendered traceback for the template.
    939 """
    940 from .debug import rewrite_traceback_stack
--> 942 raise rewrite_traceback_stack(source=source)

File ~/miniforge3/envs/pyNiteFEA/lib/python3.11/site-packages/Pynite/Report_Template.html:210, in top-level template code()
    208 <td>{{ node.name }}</td>
    209 <td>{{ combo }}</td>
--> 210 <td>{{ "%.4g" | format(node.RxnFX[combo]) }}</td>
    211 <td>{{ "%.4g" | format(node.RxnFY[combo]) }}</td>
    212 <td>{{ "%.4g" | format(node.RxnFZ[combo]) }}</td>

File ~/miniforge3/envs/pyNiteFEA/lib/python3.11/site-packages/jinja2/filters.py:1043, in do_format(value, *args, **kwargs)
   1038 if args and kwargs:
   1039     raise FilterArgumentError(
   1040         "can't handle positional and keyword arguments at the same time"
   1041     )
-> 1043 return soft_str(value) % (kwargs or args)

UndefinedError: dict object has no element <Pynite.LoadCombo.LoadCombo object at 0x3120f1190>