def EigenCoord_Cart_to_xx():
# Step 1: Find the Eigen-Coordinate and set up the Eigen-Coordinate's reference metric:
CoordSystem_orig = par.parval_from_str("reference_metric::CoordSystem")
par.set_parval_from_str("reference_metric::CoordSystem",rfm.get_EigenCoord())
rfm.reference_metric()
# Step 2: Output the Eigen-Coordinate mapping from Cartesian->xx:
# Step 2.a: Sanity check: First make sure that rfm.Cart_to_xx has been set. Error out if not!
if rfm.Cart_to_xx[0] == 0 or rfm.Cart_to_xx[1] == 0 or rfm.Cart_to_xx[2] == 0:
print("ERROR: rfm.Cart_to_xx[], which maps Cartesian -> xx, has not been set for")
print(" reference_metric::CoordSystem = "+par.parval_from_str("reference_metric::CoordSystem"))
print(" Boundary conditions in curvilinear coordinates REQUiRE this be set.")
sys.exit(1)
# Step 2.b: Output C code for the Eigen-Coordinate mapping from Cartesian->xx:
outstr = """ // Cart_to_xx for EigenCoordinate """+rfm.get_EigenCoord()+r""" (orig coord = """+CoordSystem_orig+");\n"
outstr += outputC([rfm.Cart_to_xx[0],rfm.Cart_to_xx[1],rfm.Cart_to_xx[2]],
["Cart_to_xx0_inbounds","Cart_to_xx1_inbounds","Cart_to_xx2_inbounds"],
filename="returnstring", params="preindent=2")
# Step 3: Restore reference_metric::CoordSystem back to the original CoordSystem
par.set_parval_from_str("reference_metric::CoordSystem",CoordSystem_orig)
rfm.reference_metric()
# Step 4: Return EigenCoord Cart_to_xx C code
return outstr
def EigenCoord_xx_to_Cart(i012suffix = ""):
# Step 1: Find the Eigen-Coordinate and set up the Eigen-Coordinate's reference metric:
CoordSystem_orig = par.parval_from_str("reference_metric::CoordSystem")
par.set_parval_from_str("reference_metric::CoordSystem",rfm.get_EigenCoord())
rfm.reference_metric()
# Step 2: Output C code for the Eigen-Coordinate mapping from xx->Cartesian:
outstr = """ {
// xx_to_Cart for EigenCoordinate """+rfm.get_EigenCoord()+r""" (orig coord = """+CoordSystem_orig+r"""):
REAL xx0 = xx[0][i0"""+i012suffix+"""];
REAL xx1 = xx[1][i1"""+i012suffix+"""];
REAL xx2 = xx[2][i2"""+i012suffix+"""];\n"""+ \
outputC([rfm.xx_to_Cart[0],rfm.xx_to_Cart[1],rfm.xx_to_Cart[2]],
["xCart[0]","xCart[1]","xCart[2]"],
"returnstring", params="preindent=3")+" }\n"
# Step 3: Restore reference_metric::CoordSystem back to the original CoordSystem
par.set_parval_from_str("reference_metric::CoordSystem",CoordSystem_orig)
rfm.reference_metric()
# Step 4: Return EigenCoord xx_to_Cart C code
return outstr
def Set_up_CurviBoundaryConditions(Ccodesdir,
verbose=True,
Cparamspath=os.path.join("../"),
enable_copy_of_static_Ccodes=True,
BoundaryCondition="QuadraticExtrapolation"):
# Step P0: Check that Ccodesdir is not the same as CurviBoundaryConditions/boundary_conditions,
# to prevent trusted versions of these C codes from becoming contaminated.
if os.path.join(Ccodesdir) == os.path.join("CurviBoundaryConditions",
"boundary_conditions"):
print(
"Error: Tried to output boundary conditions C code into CurviBoundaryConditions/boundary_conditions,"
" which is not allowed, to prevent trusted versions of these C codes from becoming contaminated."
)
sys.exit(1)
# Step P1: Create the C codes output directory & copy static CurviBC files
# from CurviBoundaryConditions/boundary_conditions to Ccodesdir/
if enable_copy_of_static_Ccodes:
cmd.mkdir(os.path.join(Ccodesdir))
# Choosing boundary condition drivers with in NRPy+
# - current options are Quadratic Polynomial Extrapolation for any coordinate system,
# and the Sommerfeld boundary condition for only cartesian coordinates
if str(BoundaryCondition) == "QuadraticExtrapolation":
for file in [
"apply_bcs_curvilinear.h", "BCs_data_structs.h",
"bcstruct_freemem.h", "CurviBC_include_Cfunctions.h",
"driver_bcstruct.h", "set_bcstruct.h",
"set_up__bc_gz_map_and_parity_condns.h"
]:
shutil.copy(
os.path.join("CurviBoundaryConditions",
"boundary_conditions", file),
os.path.join(Ccodesdir))
with open(os.path.join(Ccodesdir, "CurviBC_include_Cfunctions.h"),
"a") as file:
file.write("\n#include \"apply_bcs_curvilinear.h\"")
elif str(BoundaryCondition) == "Sommerfeld":
for file in [
"apply_bcs_sommerfeld.h", "BCs_data_structs.h",
"bcstruct_freemem.h", "CurviBC_include_Cfunctions.h",
"driver_bcstruct.h", "set_bcstruct.h",
"set_up__bc_gz_map_and_parity_condns.h"
]:
shutil.copy(
os.path.join("CurviBoundaryConditions",
"boundary_conditions", file),
os.path.join(Ccodesdir))
with open(os.path.join(Ccodesdir, "CurviBC_include_Cfunctions.h"),
"a") as file:
file.write("\n#include \"apply_bcs_sommerfeld.h\"")
elif str(BoundaryCondition) == "QuadraticExtrapolation&Sommerfeld":
for file in [
"apply_bcs_curvilinear.h", "apply_bcs_sommerfeld.h",
"BCs_data_structs.h", "bcstruct_freemem.h",
"CurviBC_include_Cfunctions.h", "driver_bcstruct.h",
"set_bcstruct.h", "set_up__bc_gz_map_and_parity_condns.h"
]:
shutil.copy(
os.path.join("CurviBoundaryConditions",
"boundary_conditions", file),
os.path.join(Ccodesdir))
with open(os.path.join(Ccodesdir, "CurviBC_include_Cfunctions.h"),
"a") as file:
file.write("\n#include \"apply_bcs_sommerfeld.h\"" +
"\n#include \"apply_bcs_curvilinear.h\"")
else:
print(
"ERROR: Only Quadratic Polynomial Extrapolation (QuadraticExtrapolation) and Sommerfeld boundary conditions are currently supported\n"
)
sys.exit(1)
# Step P2: Output correct #include for set_Cparameters.h to
# Ccodesdir/boundary_conditions/RELATIVE_PATH__set_Cparameters.h
with open(os.path.join(Ccodesdir, "RELATIVE_PATH__set_Cparameters.h"),
"w") as file:
file.write(
"#include \"" + Cparamspath + "/set_Cparameters.h\"\n"
) # #include's may include forward slashes for paths, even in Windows.
# Step 0: Set up reference metric in case it hasn't already been set up.
# (Doing it twice hurts nothing).
rfm.reference_metric()
# Step 1: Set unit-vector dot products (=parity) for each of the 10 parity condition types
parity = ixp.zerorank1(DIM=10)
UnitVectors_inner = ixp.zerorank2()
xx0_inbounds, xx1_inbounds, xx2_inbounds = sp.symbols(
"xx0_inbounds xx1_inbounds xx2_inbounds", real=True)
for i in range(3):
for j in range(3):
UnitVectors_inner[i][j] = rfm.UnitVectors[i][j].subs(
rfm.xx[0],
xx0_inbounds).subs(rfm.xx[1],
xx1_inbounds).subs(rfm.xx[2], xx2_inbounds)
# Type 0: scalar
parity[0] = sp.sympify(1)
# Type 1: i0-direction vector or one-form
# Type 2: i1-direction vector or one-form
# Type 3: i2-direction vector or one-form
for i in range(3):
for Type in range(1, 4):
parity[Type] += rfm.UnitVectors[Type -
1][i] * UnitVectors_inner[Type -
1][i]
# Type 4: i0i0-direction rank-2 tensor
# parity[4] = parity[1]*parity[1]
# Type 5: i0i1-direction rank-2 tensor
# Type 6: i0i2-direction rank-2 tensor
# Type 7: i1i1-direction rank-2 tensor
# Type 8: i1i2-direction rank-2 tensor
# Type 9: i2i2-direction rank-2 tensor
count = 4
for i in range(3):
for j in range(i, 3):
parity[count] = parity[i + 1] * parity[j + 1]
count = count + 1
lhs_strings = []
for i in range(10):
lhs_strings.append("parity[" + str(i) + "]")
outputC(
parity, lhs_strings,
os.path.join(Ccodesdir, "parity_conditions_symbolic_dot_products.h"))
# Step 2.a: Generate Ccodesdir/gridfunction_defines.h file,
# containing human-readable gridfunction aliases
evolved_variables_list, auxiliary_variables_list, auxevol_variables_list = gri.output__gridfunction_defines_h__return_gf_lists(
Ccodesdir)
# Step 2.b: set the parity conditions on all gridfunctions in gf_list,
# based on how many digits are at the end of their names
def set_parity_types(list_of_gf_names):
parity_type = []
for name in list_of_gf_names:
for gf in gri.glb_gridfcs_list:
if gf.name == name:
parity_type__orig_len = len(parity_type)
if gf.DIM < 3 or gf.DIM > 4:
print(
"Error: Cannot currently specify parity conditions on gridfunctions with DIM<3 or >4."
)
sys.exit(1)
if gf.rank == 0:
parity_type.append(0)
elif gf.rank == 1:
if gf.DIM == 3:
parity_type.append(
int(gf.name[-1]) + 1
) # = 1 for e.g., beta^0; = 2 for e.g., beta^1, etc.
elif gf.DIM == 4:
parity_type.append(
int(gf.name[-1])
) # = 0 for e.g., b4^0; = 1 for e.g., beta^1, etc.
elif gf.rank == 2:
if gf.DIM == 3:
# element of a list; a[-2] the
# second-to-last element, etc.
idx0 = gf.name[-2]
idx1 = gf.name[-1]
if idx0 == "0" and idx1 == "0":
parity_type.append(4)
elif (idx0 == "0"
and idx1 == "1") or (idx0 == "1"
and idx1 == "0"):
parity_type.append(5)
elif (idx0 == "0"
and idx1 == "2") or (idx0 == "2"
and idx1 == "0"):
parity_type.append(6)
elif idx0 == "1" and idx1 == "1":
parity_type.append(7)
elif (idx0 == "1"
and idx1 == "2") or (idx0 == "2"
and idx1 == "1"):
parity_type.append(8)
elif idx0 == "2" and idx1 == "2":
parity_type.append(9)
elif gf.DIM == 4:
idx0 = gf.name[-2]
idx1 = gf.name[-1]
# g4DD00 = g_{tt} : parity type = 0
# g4DD01 = g_{tx} : parity type = 1
# g4DD02 = g_{ty} : parity type = 2
# g4DD0a = g_{ta} : parity type = a
if idx0 == "0":
parity_type.append(int(idx1))
elif idx1 == "0":
parity_type.append(int(idx0))
if idx0 == "1" and idx1 == "1":
parity_type.append(4)
elif (idx0 == "1"
and idx1 == "2") or (idx0 == "2"
and idx1 == "1"):
parity_type.append(5)
elif (idx0 == "1"
and idx1 == "3") or (idx0 == "3"
and idx1 == "1"):
parity_type.append(6)
elif idx0 == "2" and idx1 == "2":
parity_type.append(7)
elif (idx0 == "2"
and idx1 == "3") or (idx0 == "3"
and idx1 == "2"):
parity_type.append(8)
elif idx0 == "3" and idx1 == "3":
parity_type.append(9)
if len(parity_type) == parity_type__orig_len:
print(
"Error: Could not figure out parity type for " +
gf.gftype + " gridfunction: " + gf.name, gf.DIM,
gf.name[-2], gf.name[-1], gf.rank)
sys.exit(1)
if len(parity_type) != len(list_of_gf_names):
print(
"Error: For some reason the length of the parity types list did not match the length of the gf list."
)
sys.exit(1)
return parity_type
evol_parity_type = set_parity_types(evolved_variables_list)
aux_parity_type = set_parity_types(auxiliary_variables_list)
auxevol_parity_type = set_parity_types(auxevol_variables_list)
# Step 2.c: Output all gridfunctions to Ccodesdir+"/gridfunction_defines.h"
# ... then append to the file the parity type for each gridfunction.
with open(os.path.join(Ccodesdir, "gridfunction_defines.h"), "a") as file:
file.write("\n\n/* PARITY TYPES FOR ALL GRIDFUNCTIONS.\n")
file.write(
" SEE \"Tutorial-Start_to_Finish-Curvilinear_BCs.ipynb\" FOR DEFINITIONS. */\n"
)
if len(evolved_variables_list) > 0:
file.write("const int8_t evol_gf_parity[" +
str(len(evolved_variables_list)) + "] = { ")
for i in range(len(evolved_variables_list) - 1):
file.write(str(evol_parity_type[i]) + ", ")
file.write(
str(evol_parity_type[len(evolved_variables_list) - 1]) +
" };\n")
if len(auxiliary_variables_list) > 0:
file.write("const int8_t aux_gf_parity[" +
str(len(auxiliary_variables_list)) + "] = { ")
for i in range(len(auxiliary_variables_list) - 1):
file.write(str(aux_parity_type[i]) + ", ")
file.write(
str(aux_parity_type[len(auxiliary_variables_list) - 1]) +
" };\n")
if len(auxevol_variables_list) > 0:
file.write("const int8_t auxevol_gf_parity[" +
str(len(auxevol_variables_list)) + "] = { ")
for i in range(len(auxevol_variables_list) - 1):
file.write(str(auxevol_parity_type[i]) + ", ")
file.write(
str(auxevol_parity_type[len(auxevol_variables_list) - 1]) +
" };\n")
if verbose == True:
import textwrap
wrapper = textwrap.TextWrapper(initial_indent="",
subsequent_indent=" ",
width=75)
def print_parity_list(gf_type, variable_names, parity_types):
outstr = ""
if len(variable_names) != 0:
outstr += gf_type + " parity: ( "
for i in range(len(variable_names)):
outstr += variable_names[i] + ":" + str(parity_types[i])
if i != len(variable_names) - 1:
outstr += ", "
outstr += " )"
print(wrapper.fill(outstr))
print_parity_list("Evolved", evolved_variables_list, evol_parity_type)
print_parity_list("Auxiliary", auxiliary_variables_list,
aux_parity_type)
print_parity_list("AuxEvol", auxevol_variables_list,
auxevol_parity_type)
# Step 3: Find the Eigen-Coordinate and set up the Eigen-Coordinate's reference metric:
CoordSystem_orig = par.parval_from_str("reference_metric::CoordSystem")
par.set_parval_from_str("reference_metric::CoordSystem",
rfm.get_EigenCoord())
rfm.reference_metric()
# Step 4: Output C code for the Eigen-Coordinate mapping from xx->Cartesian:
rfm.xxCart_h("EigenCoord_xxCart",
os.path.join(Cparamspath, "set_Cparameters.h"),
os.path.join(Ccodesdir, "EigenCoord_xxCart.h"))
# Step 5: Output the Eigen-Coordinate mapping from Cartesian->xx:
# Step 5.a: Sanity check: First make sure that rfm.Cart_to_xx has been set. Error out if not!
if rfm.Cart_to_xx[0] == 0 or rfm.Cart_to_xx[1] == 0 or rfm.Cart_to_xx[
2] == 0:
print(
"ERROR: rfm.Cart_to_xx[], which maps Cartesian -> xx, has not been set for"
)
print(" reference_metric::CoordSystem = " +
par.parval_from_str("reference_metric::CoordSystem"))
print(
" Boundary conditions in curvilinear coordinates REQUIRE this be set."
)
sys.exit(1)
# Step 5.b: Output C code for the Eigen-Coordinate mapping from Cartesian->xx:
outputC([rfm.Cart_to_xx[0], rfm.Cart_to_xx[1], rfm.Cart_to_xx[2]], [
"Cart_to_xx0_inbounds", "Cart_to_xx1_inbounds", "Cart_to_xx2_inbounds"
], os.path.join(Ccodesdir, "EigenCoord_Cart_to_xx.h"))
# Step 6: Restore reference_metric::CoordSystem back to the original CoordSystem
par.set_parval_from_str("reference_metric::CoordSystem", CoordSystem_orig)
rfm.reference_metric()
def Set_up_CurviBoundaryConditions(outdir="CurviBoundaryConditions/",
verbose=True):
# Step 0: Set up reference metric in case it hasn't already been set up.
# (Doing it twice hurts nothing).
rfm.reference_metric()
# Step 1: Set unit-vector dot products (=parity) for each of the 10 parity condition types
parity = ixp.zerorank1(DIM=10)
UnitVectors_inner = ixp.zerorank2()
xx0_inbounds, xx1_inbounds, xx2_inbounds = sp.symbols(
"xx0_inbounds xx1_inbounds xx2_inbounds", real=True)
for i in range(3):
for j in range(3):
UnitVectors_inner[i][j] = rfm.UnitVectors[i][j].subs(
rfm.xx[0],
xx0_inbounds).subs(rfm.xx[1],
xx1_inbounds).subs(rfm.xx[2], xx2_inbounds)
# Type 0: scalar
parity[0] = sp.sympify(1)
# Type 1: i0-direction vector or one-form
# Type 2: i1-direction vector or one-form
# Type 3: i2-direction vector or one-form
for i in range(3):
for Type in range(1, 4):
parity[Type] += rfm.UnitVectors[Type -
1][i] * UnitVectors_inner[Type -
1][i]
# Type 4: i0i0-direction rank-2 tensor
# parity[4] = parity[1]*parity[1]
# Type 5: i0i1-direction rank-2 tensor
# Type 6: i0i2-direction rank-2 tensor
# Type 7: i1i1-direction rank-2 tensor
# Type 8: i1i2-direction rank-2 tensor
# Type 9: i2i2-direction rank-2 tensor
count = 4
for i in range(3):
for j in range(i, 3):
parity[count] = parity[i + 1] * parity[j + 1]
count = count + 1
lhs_strings = []
for i in range(10):
lhs_strings.append("parity[" + str(i) + "]")
outputC(parity, lhs_strings,
outdir + "parity_conditions_symbolic_dot_products.h")
# Step 2.a: Generate outdir+gridfunction_defines.h file,
# containing human-readable gridfunction aliases
evolved_variables_list, auxiliary_variables_list, auxevol_variables_list = gri.output__gridfunction_defines_h__return_gf_lists(
outdir)
# Step 2.b: set the parity conditions on all gridfunctions in gf_list,
# based on how many digits are at the end of their names
def set_parity_types(list_of_gf_names):
parity_type = []
for name in list_of_gf_names:
for gf in gri.glb_gridfcs_list:
if gf.name == name:
parity_type__orig_len = len(parity_type)
if gf.DIM < 3 or gf.DIM > 4:
print(
"Error: Cannot currently specify parity conditions on gridfunctions with DIM<3 or >4."
)
sys.exit(1)
if gf.rank == 0:
parity_type.append(0)
elif gf.rank == 1:
if gf.DIM == 3:
parity_type.append(
int(gf.name[-1]) + 1
) # = 1 for e.g., beta^0; = 2 for e.g., beta^1, etc.
elif gf.DIM == 4:
parity_type.append(
int(gf.name[-1])
) # = 0 for e.g., b4^0; = 1 for e.g., beta^1, etc.
elif gf.rank == 2:
if gf.DIM == 3:
# element of a list; a[-2] the
# second-to-last element, etc.
idx0 = gf.name[-2]
idx1 = gf.name[-1]
if idx0 == "0" and idx1 == "0":
parity_type.append(4)
elif (idx0 == "0"
and idx1 == "1") or (idx0 == "1"
and idx1 == "0"):
parity_type.append(5)
elif (idx0 == "0"
and idx1 == "2") or (idx0 == "2"
and idx1 == "0"):
parity_type.append(6)
elif idx0 == "1" and idx1 == "1":
parity_type.append(7)
elif (idx0 == "1"
and idx1 == "2") or (idx0 == "2"
and idx1 == "1"):
parity_type.append(8)
elif idx0 == "2" and idx1 == "2":
parity_type.append(9)
elif gf.DIM == 4:
idx0 = gf.name[-2]
idx1 = gf.name[-1]
# g4DD00 = g_{tt} : parity type = 0
# g4DD01 = g_{tx} : parity type = 1
# g4DD02 = g_{ty} : parity type = 2
# g4DD0a = g_{ta} : parity type = a
if idx0 == "0":
parity_type.append(int(idx1))
elif idx1 == "0":
parity_type.append(int(idx0))
if idx0 == "1" and idx1 == "1":
parity_type.append(4)
elif (idx0 == "1"
and idx1 == "2") or (idx0 == "2"
and idx1 == "1"):
parity_type.append(5)
elif (idx0 == "1"
and idx1 == "3") or (idx0 == "3"
and idx1 == "1"):
parity_type.append(6)
elif idx0 == "2" and idx1 == "2":
parity_type.append(7)
elif (idx0 == "2"
and idx1 == "3") or (idx0 == "3"
and idx1 == "2"):
parity_type.append(8)
elif idx0 == "3" and idx1 == "3":
parity_type.append(9)
if len(parity_type) == parity_type__orig_len:
print(
"Error: Could not figure out parity type for " +
gf.gftype + " gridfunction: " + gf.name, gf.DIM,
gf.name[-2], gf.name[-1], gf.rank)
sys.exit(1)
if len(parity_type) != len(list_of_gf_names):
print(
"Error: For some reason the length of the parity types list did not match the length of the gf list."
)
sys.exit(1)
return parity_type
evol_parity_type = set_parity_types(evolved_variables_list)
aux_parity_type = set_parity_types(auxiliary_variables_list)
auxevol_parity_type = set_parity_types(auxevol_variables_list)
# Step 2.c: Output all gridfunctions to outdir+"/gridfunction_defines.h"
# ... then append to the file the parity type for each gridfunction.
with open(outdir + "/gridfunction_defines.h", "a") as file:
file.write("\n\n/* PARITY TYPES FOR ALL GRIDFUNCTIONS.\n")
file.write(
" SEE \"Tutorial-Start_to_Finish-Curvilinear_BCs.ipynb\" FOR DEFINITIONS. */\n"
)
if len(evolved_variables_list) > 0:
file.write("const int8_t evol_gf_parity[" +
str(len(evolved_variables_list)) + "] = { ")
for i in range(len(evolved_variables_list) - 1):
file.write(str(evol_parity_type[i]) + ", ")
file.write(
str(evol_parity_type[len(evolved_variables_list) - 1]) +
" };\n")
if len(auxiliary_variables_list) > 0:
file.write("const int8_t aux_gf_parity[" +
str(len(auxiliary_variables_list)) + "] = { ")
for i in range(len(auxiliary_variables_list) - 1):
file.write(str(aux_parity_type[i]) + ", ")
file.write(
str(aux_parity_type[len(auxiliary_variables_list) - 1]) +
" };\n")
if len(auxevol_variables_list) > 0:
file.write("const int8_t auxevol_gf_parity[" +
str(len(auxevol_variables_list)) + "] = { ")
for i in range(len(auxevol_variables_list) - 1):
file.write(str(auxevol_parity_type[i]) + ", ")
file.write(
str(auxevol_parity_type[len(auxevol_variables_list) - 1]) +
" };\n")
if verbose == True:
for i in range(len(evolved_variables_list)):
print("Evolved gridfunction \"" + evolved_variables_list[i] +
"\" has parity type " + str(evol_parity_type[i]) + ".")
for i in range(len(auxiliary_variables_list)):
print("Auxiliary gridfunction \"" + auxiliary_variables_list[i] +
"\" has parity type " + str(aux_parity_type[i]) + ".")
for i in range(len(auxevol_variables_list)):
print("AuxEvol gridfunction \"" + auxevol_variables_list[i] +
"\" has parity type " + str(auxevol_parity_type[i]) + ".")
# Step 3: Find the Eigen-Coordinate and set up the Eigen-Coordinate's reference metric:
CoordSystem_orig = par.parval_from_str("reference_metric::CoordSystem")
par.set_parval_from_str("reference_metric::CoordSystem",
rfm.get_EigenCoord())
rfm.reference_metric()
# Step 4: Output C code for the Eigen-Coordinate mapping from xx->Cartesian:
rfm.xxCart_h("EigenCoord_xxCart", "../set_Cparameters.h",
outdir + "EigenCoord_xxCart.h")
# Step 5: Output the Eigen-Coordinate mapping from Cartesian->xx:
# Step 5.a: Sanity check: First make sure that rfm.Cart_to_xx has been set. Error out if not!
if rfm.Cart_to_xx[0] == 0 or rfm.Cart_to_xx[1] == 0 or rfm.Cart_to_xx[
2] == 0:
print(
"ERROR: rfm.Cart_to_xx[], which maps Cartesian -> xx, has not been set for"
)
print(" reference_metric::CoordSystem = " +
par.parval_from_str("reference_metric::CoordSystem"))
print(
" Boundary conditions in curvilinear coordinates REQUIRE this be set."
)
sys.exit(1)
# Step 5.b: Output C code for the Eigen-Coordinate mapping from Cartesian->xx:
outputC([rfm.Cart_to_xx[0], rfm.Cart_to_xx[1], rfm.Cart_to_xx[2]], [
"Cart_to_xx0_inbounds", "Cart_to_xx1_inbounds", "Cart_to_xx2_inbounds"
], outdir + "EigenCoord_Cart_to_xx.h")
# Step 6: Restore reference_metric::CoordSystem back to the original CoordSystem
par.set_parval_from_str("reference_metric::CoordSystem", CoordSystem_orig)
rfm.reference_metric()