code: def curvelinear_test2(fig):
      """Polar projection, but in a rectangular box."""
      # see demo_curvelinear_grid.py for details
      tr = Affine2D().scale(
          np.pi / 180.0, 1.0
      ) + PolarAxes.PolarTransform(apply_theta_transforms=False)
  
      extreme_finder = angle_helper.ExtremeFinderCycle(
          20,
          20,
          lon_cycle=360,
          lat_cycle=None,
          lon_minmax=None,
          lat_minmax=(0, np.inf),
      )
  
      grid_locator1 = angle_helper.LocatorDMS(12)
  
      tick_formatter1 = angle_helper.FormatterDMS()
  
      grid_helper = GridHelperCurveLinear(
          tr,
          extreme_finder=extreme_finder,
          grid_locator1=grid_locator1,
          tick_formatter1=tick_formatter1,
      )
  
      ax1 = fig.add_subplot(
          axes_class=HostAxes, grid_helper=grid_helper
      )
  
      # Now creates floating axis
  
      # floating axis whose first coordinate (theta) is fixed at 60
      ax1.axis["lat"] = axis = ax1.new_floating_axis(0, 60)
      axis.label.set_text(r"$\theta = 60^{\circ}$")
      axis.label.set_visible(True)
  
      # floating axis whose second coordinate (r) is fixed at 6
      ax1.axis["lon"] = axis = ax1.new_floating_axis(1, 6)
      axis.label.set_text(r"$r = 6$")
  
      ax1.set_aspect(1.0)
      ax1.set_xlim(-5, 12)
      ax1.set_ylim(-5, 10)
  
      ax1.grid(True)
  
imports: import matplotlib.pyplot
  import numpy
  from matplotlib.projections import PolarAxes
  from matplotlib.transforms import Affine2D
  from mpl_toolkits.axisartist import GridHelperCurveLinear, HostAxes
  import mpl_toolkits.axisartist.angle_helper
label_desc: Use image node_id 1 for calling a global function with example usage: curvelinear_test2(fig) without return types