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SummationByParts
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remove error plotting

This commit is contained in:
Magnus Ulimoen 2020-04-08 18:06:50 +02:00
parent d5b5b9f02e
commit b2eb79e71d
1 changed files with 11 additions and 75 deletions
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74
sbp/eulerplot
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@ -4,8 +4,6 @@ import matplotlib.pyplot as plt
import numpy as np
import h5py
import os
from argparse import ArgumentParser
@ -21,30 +19,19 @@ def gridlines(obj, x, y):
obj.plot(x[:, -1], y[:, -1], color="#7f7f7f", linewidth=0.2)
def plot_all(grids, error: bool, save: bool, filename="figure.png"):
def plot_all(grids, save: bool, filename="figure.png"):
sym_cmap = plt.get_cmap("PiYG") # Symmetric around zero
if error:
e_cmap = sym_cmap
else:
e_cmap = plt.get_cmap("Greys")
f, axarr = plt.subplots(2, 2)
min_rho = min(np.min(g["rho"]) for g in grids)
max_rho = max(np.max(g["rho"]) for g in grids)
if error:
r = 1.2 * max(abs(min_rho), abs(max_rho))
rho_levels = np.linspace(-r, r, 34)
else:
r = 1.2 * max(abs(min_rho - 1), abs(max_rho - 1))
rho_levels = np.linspace(1 - r, 1 + r, 34)
min_rhou = min(np.min(g["rhou"]) for g in grids)
max_rhou = max(np.max(g["rhov"]) for g in grids)
if error:
r = 1.2 * max(abs(min_rhou), abs(max_rhou))
rhou_levels = np.linspace(-r, r, 20)
else:
r = 1.2 * max(abs(min_rhou - 1), abs(max_rhou - 1))
rhou_levels = np.linspace(1 - r, 1 + r, 20)
@ -55,10 +42,6 @@ def plot_all(grids, error: bool, save: bool, filename="figure.png"):
min_e = min(np.min(g["e"]) for g in grids)
max_e = max(np.max(g["e"]) for g in grids)
if error:
r = max(abs(min_e), abs(max_e))
e_levels = np.linspace(-r, r, 20)
else:
e_levels = np.linspace(min_e, max_e)
for g in grids:
@ -114,40 +97,6 @@ def plot_all(grids, error: bool, save: bool, filename="figure.png"):
plt.show()
def plot_total_error(grids, save: bool, filename="figure.png"):
cmap = plt.get_cmap("Greys")
total_err = [
np.abs(g["rho"]) + np.abs(g["rhou"]) + np.abs(g["rhov"]) + np.abs(g["e"])
for g in grids
]
r = max(np.max(err) for err in total_err)
levels = np.linspace(0, r, 30)
for g, err in zip(grids, total_err):
x = g["x"]
y = g["y"]
plt.contourf(x, y, err, cmap=cmap, levels=levels)
gridlines(plt, x, y)
plt.title("Total error")
norm = mpl.colors.Normalize(vmin=levels[0], vmax=levels[-1])
sm = plt.cm.ScalarMappable(cmap=cmap, norm=norm)
sm.set_array([])
plt.colorbar(sm)
plt.xlabel("x")
plt.ylabel("y")
if save:
plt.savefig(args.output, bbox_inches="tight", dpi=600)
plt.show()
def plot_pressure(grids, save: bool, filename="figure.png"):
cmap = plt.get_cmap("RdGy")
gamma = 1.4 # Assumption might be wrong
@ -213,21 +162,12 @@ def read_from_file(filename):
}
)
return grids
return grids, file["t"]
if __name__ == "__main__":
parser = ArgumentParser(description="Plot a solution from the eulersolver")
parser.add_argument("filename", metavar="filename", type=str)
parser.add_argument(
"-e",
help="Scale is centered around zero (implies -a)",
action="store_true",
dest="error",
)
parser.add_argument(
"-te", help="Plots total error", action="store_true", dest="total_error"
)
parser.add_argument("-s", help="Save figure", action="store_true", dest="save")
parser.add_argument(
"-o",
@ -242,14 +182,10 @@ if __name__ == "__main__":
args = parser.parse_args()
filename = args.filename
if not os.path.isfile(filename):
filename = "solution{:03}.bin".format(int(filename))
grids = read_from_file(filename)
grids, t = read_from_file(filename)
if args.all or args.error:
plot_all(grids, args.error, args.save, args.output)
elif args.total_error:
plot_total_error(grids, args.save, args.output)
if args.all:
plot_all(grids, args.save, args.output)
else:
plot_pressure(grids, args.save, args.output)