Add Spatial Coordinates

coords_from_df maps table columns onto a patch dimension. This example adds surveyed X, Y, and Z coordinates along distance.

Code

import pandas as pd

import dascore as dc

# Pandas needs a local path rather than an examples:// URI.
path = dc.examples.fetch("brady_hs_DAS_DTS_coords.csv")
coord_table = pd.read_csv(path).rename(columns={"Channel": "distance"})
patch = dc.get_example_patch()
units = {name: "m" for name in coord_table.columns[1:]}
new_coordinates = coord_table.iloc[51:]

import matplotlib.pyplot as plt

patch_with_coords = patch.coords_from_df(
    new_coordinates,
    units=units,
    extrapolate=True,
)

coords = patch_with_coords.coords
x = coords.get_array("X")
y = coords.get_array("Y")
plt.scatter(x, y);