"Bumpy" boundary layer mesh

[SunilAnandatheertha]

I get this "bumpy" boundary layer mesh, when expecting a smooth transition.

Am I missing something here ? The code is below:
############################################

import numpy as np
import pygmsh
import pyvista as pv
import meshio
with pygmsh.geo.Geometry() as geom:
    poly = geom.add_polygon([ [0.0, 0.0], [4.0, 0.0], [2.0, 2.0], ], mesh_size = 1.0, )
    field0 = geom.add_boundary_layer(edges_list=[poly.curves[0]], lcmin = 0.02, lcmax = 1.40, distmin = 0.10, distmax = 0.20, )
    field3 = geom.add_boundary_layer(nodes_list=[poly.points[0]], lcmin = 0.02, lcmax = 0.40, distmin = 0.10, distmax = 0.20, )
    geom.set_background_mesh([field0, field3], operator="Min")
    mesh = geom.generate_mesh()
    #pygmsh.optimize(mesh, method="")
    mesh.write("sunil.vtk")

grid = pv.read("sunil.vtk")
pv.global_theme.background='maroon'
plotter = pv.Plotter(window_size=(1400,800))
_ = plotter.add_axes_at_origin(x_color = 'red', y_color = 'green', z_color = 'blue',
                               line_width = 1,
                               xlabel = 'x', ylabel = 'y', zlabel = 'z',
                               labels_off = True)
_ = plotter.add_points(np.array([0,0,0]),
                       render_points_as_spheres = True,
                       point_size = 25)
_ = plotter.add_points(grid.points,
                       render_points_as_spheres = True,
                       point_size = 2)
#_ = plotter.add_bounding_box(line_width=2, color='black')
_ = plotter.add_mesh(grid,
                     show_edges = True,
                     edge_color = 'black',
                     line_width = 1,
                     render_points_as_spheres = True,
                     point_size = 10,
                     style = 'wireframe')
plotter.view_xy()
plotter.camera.zoom(2.0)
plotter.show()

[SunilAnandatheertha]

Problem solved. Just need to input another parameter, "num_points_per_curve=(N)", N is value you want. A large enough number should solve the issue... With N = 100, we get the following: