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helpers.py
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helpers.py
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"""Functions and code used for the IIW presentation notebook"""
import matplotlib.pyplot as plt
import numpy as np
from matplotlib import get_backend
from weldx import Q_, U_, CoordinateSystemManager, SpatialData, Time
from weldx.geometry import Geometry, LinearHorizontalTraceSegment, Trace
_DEFAUL_FIGWIDTH = plt.rcParams["figure.figsize"][0]
cs_colors = {
"workpiece": (100, 100, 100),
"workpiece geometry": (100, 100, 100),
"scan_0": (100, 100, 100),
"scan_1": (100, 100, 100),
"workpiece geometry (reduced)": (0, 0, 0),
"workpiece (simple)": (0, 0, 0),
"user_frame": (180, 180, 0),
"TCP": (255, 0, 0),
"TCP design": (200, 0, 0),
"T1": (0, 255, 0),
"T2": (0, 200, 0),
"T3": (0, 150, 0),
"T4": (0, 100, 0),
"welding_wire": (150, 150, 0),
"flange": (0, 0, 255),
"LLT_1": (40, 240, 180),
"LLT_2": (20, 190, 150),
"XIRIS_1": (255, 0, 255),
"XIRIS_2": (200, 0, 200),
}
def welding_wire_geo_data(radius, length, cross_section_resolution=8):
points = []
triangles = []
for i in range(cross_section_resolution):
angle = i / cross_section_resolution * np.pi * 2
x = np.cos(angle) * radius
y = np.sin(angle) * radius
points.append([x, y, 0])
points.append([x, y, length])
idx = 2 * i
triangles.append([idx, idx + 1, idx + 3])
triangles.append([idx, idx + 3, idx + 2])
triangles[-2][2] = 1
triangles[-1][1] = 1
triangles[-1][2] = 0
return SpatialData(
np.array(points, dtype="float32") * U_("mm"),
np.array(triangles, dtype="uint32"),
)
def plot_signal(signal, name, limits=None, ax=None):
"""Plot a single weldx signal."""
if not ax:
_, ax = plt.subplots(figsize=(_DEFAUL_FIGWIDTH, 6))
signal.plot(data_name=name, axes=ax)
if limits is not None:
ax.set_xlim(limits)
fig_style(ax.figure)
def plot_measurements(measurement_data, limits=None):
n = len(measurement_data)
fig, ax = plt.subplots(nrows=n, sharex="all", figsize=(_DEFAUL_FIGWIDTH, 2.5 * n))
for i, measurement in enumerate(measurement_data):
last_signal = measurement.measurement_chain.signals[-1]
last_signal.plot(data_name=measurement.name, axes=ax[i])
if limits is not None:
ax.set_xlim(limits)
ax[i].set_xlabel(None)
ax[-1].set_xlabel("time / s")
ax[0].set_title("Measurements")
fig_style(fig)
def parplot(par, t, name, ax):
"""plot a single parameter into an axis"""
ts = par.interp_time(t)
x = Time(t).as_quantity()
ax.plot(x.m, ts.data.m)
ax.set_ylabel(f"{name} / {ts.data.u:~}")
def fig_style(fig, toolbar=True):
"""Apply default figure styling for ipympl backend."""
if get_backend() == "module://ipympl.backend_nbagg":
fig.canvas.header_visible = False
fig.canvas.resizable = False
fig.tight_layout()
fig.canvas.toolbar_position = "right"
fig.canvas.toolbar_visible = toolbar
def plot_gmaw(gmaw, t):
"""Plot a dictionary of parameters"""
title = "\n".join([gmaw.manufacturer, gmaw.power_source, gmaw.base_process])
pars = gmaw.parameters
n = len(pars)
fig, ax = plt.subplots(nrows=n, sharex="all", figsize=(_DEFAUL_FIGWIDTH, 2 * n))
for i, k in enumerate(pars):
parplot(pars[k], t, k, ax[i])
ax[-1].set_xlabel("time / s")
ax[0].set_title(title, loc="left")
fig_style(fig)
return fig, ax
def create_geometry(groove, seam_length, width):
trace = Trace(LinearHorizontalTraceSegment(seam_length))
return Geometry(groove.to_profile(width_default=width), trace)
def ax_setup(ax):
# ax.legend()
ax.set_xlabel("x / mm")
ax.set_ylabel("y / mm")
ax.set_zlabel("z / mm")
ax.view_init(30, -10)
ax.set_ylim([-10.5, 10.5])
ax.set_zlim([0, 15])
ax.figure.set_size_inches(8, 8)
fig_style(ax.axes.figure)
def add_axis_labels_3d(axes):
axes.set_xlabel("x / mm")
axes.set_ylabel("y / mm")
axes.set_zlabel("z / mm")
def build_base_csm(weldx_file: dict, plot=True):
"""Create a simple CSM instance from workpiece information and the TCP movement."""
seam_length = weldx_file["workpiece"]["geometry"]["seam_length"]
groove = weldx_file["workpiece"]["geometry"]["groove_shape"]
geometry = create_geometry(groove, seam_length, Q_(10, "mm"))
csm = CoordinateSystemManager("workpiece")
csm.add_cs("TCP weld", "workpiece", lcs=weldx_file["TCP"])
spatial_data_geo_reduced = geometry.spatial_data(
profile_raster_width=Q_(4, "mm"), trace_raster_width=Q_(60, "mm")
)
csm.assign_data(spatial_data_geo_reduced, "workpiece (simple)", "workpiece")
if plot:
csm.plot(
reference_system="workpiece",
coordinate_systems=["TCP weld"],
data_sets=["workpiece (simple)"],
colors=cs_colors,
show_wireframe=True,
show_data_labels=False,
show_vectors=False,
)
ax_setup(plt.gca())
return csm