Issue with plotting a virtual mooring

[dwayne-hart]

Describe the bug
When trying to plot a virtual mooring using the GIOPS 3D LL dataset (number 7 on the drop down menu). The browser takes a long time to come back.

To Reproduce
Steps to reproduce the behavior:

[2020-11-19 12:16:17 +0000] [6386] [ERROR] Error handling request /api/v1.0/plot/?query=%7B%22colormap%22%3A%22default%22%2C%22dataset%22%3A%22giops_fc_3dll%22%2C%22depth%22%3A0%2C%22endtime%22%3A2236982400%2C%22names%22%3A%5B%5D%2C%22plotTitle%22%3A%22%22%2C%22quantum%22%3A%22day%22%2C%22scale%22%3A%22-5%2C30%2Cauto%22%2C%22showmap%22%3Afalse%2C%22starttime%22%3A2236982376%2C%22station%22%3A%5B%5B41.60175045897813%2C-56.00952012671368%5D%5D%2C%22type%22%3A%22timeseries%22%2C%22variable%22%3A%22votemper%22%7D&format=json

Expected behavior
A clear and concise description of what you expected to happen.

For the Ocean Navigator to plot a time series for a point.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. iOS] Windows 10 Enterprise
• Browser [e.g. chrome, safari] chrome
• Version [e.g. 22] Version 85.0.4183.121 (Official Build) (32-bit)

Additional context
Add any other context about the problem here.

[2020-11-19 12:16:17 +0000] [6386] [ERROR] Error handling request /api/v1.0/plot/?query=%7B%22colormap%22%3A%22default%22%2C%22dataset%22%3A%22giops_fc_3dll%22%2C%22depth%22%3A0%2C%22endtime%22%3A2236982400%2C%22names%22%3A%5B%5D%2C%22plotTitle%22%3A%22%22%2C%22quantum%22%3A%22day%22%2C%22scale%22%3A%22-5%2C30%2Cauto%22%2C%22showmap%22%3Afalse%2C%22starttime%22%3A2236982376%2C%22station%22%3A%5B%5B41.60175045897813%2C-56.00952012671368%5D%5D%2C%22type%22%3A%22timeseries%22%2C%22variable%22%3A%22votemper%22%7D&format=json
Traceback (most recent call last):
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/gunicorn/workers/gthread.py", line 271, in handle
    keepalive = self.handle_request(req, conn)
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/gunicorn/workers/gthread.py", line 320, in handle_request
    respiter = self.wsgi(environ, resp.start_response)
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/sentry_sdk/integrations/flask.py", line 90, in sentry_patched_wsgi_app
    environ, start_response
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/sentry_sdk/integrations/wsgi.py", line 131, in __call__
    reraise(*_capture_exception(hub))
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/sentry_sdk/_compat.py", line 54, in reraise
    raise value
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/sentry_sdk/integrations/wsgi.py", line 127, in __call__
    _sentry_start_response, start_response, transaction
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/sentry_sdk/integrations/flask.py", line 89, in <lambda>
    return SentryWsgiMiddleware(lambda *a, **kw: old_app(self, *a, **kw))(
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/flask/app.py", line 1997, in __call__
    return self.wsgi_app(environ, start_response)
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/flask/app.py", line 1985, in wsgi_app
    response = self.handle_exception(e)
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/flask/app.py", line 1540, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/flask/_compat.py", line 33, in reraise
    raise value
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/flask/app.py", line 1982, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/flask/app.py", line 1614, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/flask/app.py", line 1517, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/flask/_compat.py", line 33, in reraise
    raise value
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/flask/app.py", line 1612, in full_dispatch_request
    rv = self.dispatch_request()
  File "/home/ubuntu/tools/miniconda/3/amd64/envs/navigator/lib/python3.6/site-packages/flask/app.py", line 1598, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/home/ubuntu/Ocean-Data-Map-Project/routes/api_v1_0.py", line 527, in plot_v1_0
    img, mime, filename = plotter.run()
  File "/home/ubuntu/Ocean-Data-Map-Project/plotting/plotter.py", line 58, in run
    _ = self.prepare_plot()
  File "/home/ubuntu/Ocean-Data-Map-Project/plotting/plotter.py", line 51, in prepare_plot
    self.load_data()
  File "/home/ubuntu/Ocean-Data-Map-Project/plotting/timeseries.py", line 96, in load_data
    return_depth=True
  File "/home/ubuntu/Ocean-Data-Map-Project/data/model.py", line 172, in get_timeseries_point
    return_depth=return_depth,
  File "/home/ubuntu/Ocean-Data-Map-Project/data/mercator.py", line 204, in get_point
    starttime_idx = self.nc_data.timestamp_to_time_index(starttime)
  File "/home/ubuntu/Ocean-Data-Map-Project/data/netcdf_data.py", line 164, in timestamp_to_time_index
    return result if result.shape[0] > 1 else result[0]
IndexError: index 0 is out of bounds for axis 0 with size 0

[dwayne-hart]

For some reason the "Start Time" is set to NaN undefined NaN. When you click on the calendar option and pick a date the application renders quickly as found by @nsoontie .

Why is it that an "End Time" is able to be determined but not a "Start Time"?

The following images were created by @nsoontie .

[dwayne-hart]

The issue can be seen in the file oceannavigator/frontend/src/components/PointWindow.jsx

      <TimePicker
        key='starttime'
        id='starttime'
        state={this.state.starttime}
        def=''
        quantum={this.props.quantum}
        url={"/api/v1.0/timestamps/?dataset=" + this.props.dataset + "&variable=" + this.props.variable}
        title={_("Start Time")}
        onUpdate={this.onLocalUpdate}
        max={this.props.time}
      />
      <TimePicker
        key='time'
        id='time'
        state={this.props.time}
        def=''
        quantum={this.props.quantum}
        url={"/api/v1.0/timestamps/?dataset=" + this.props.dataset + "&variable=" + this.props.variable}
        title={_("End Time")}
        onUpdate={this.props.onUpdate}
        min={this.state.starttime}
      /> </div> : null;