def test_calc_weightfactor(self):
'''test of calc_weightfactor'''
prj.set_default()
helptest.building_test2(prj)
prj.buildings[-1].calc_building_parameter(number_of_elements=2,
merge_windows=True,
used_library='AixLib')
therm_zone = prj.buildings[-1].thermal_zones[-1]
assert therm_zone.weightfactor_ow == [
0.024530650180761254, 0.03434291025306576, 0.024530650180761254,
0.03434291025306576, 0.3407000330729792
]
assert therm_zone.weightfactor_win == [
0.0, 0.054214642472656345, 0.08674342795625017,
0.054214642472656345, 0.0
]
prj.buildings[-1].thermal_zones[-1].weightfactor_ow = []
prj.buildings[-1].thermal_zones[-1].weightfactor_win = []
prj.buildings[-1].calc_building_parameter(number_of_elements=2,
merge_windows=False,
used_library='AixLib')
therm_zone = prj.buildings[-1].thermal_zones[-1]
assert therm_zone.weightfactor_ow == [
0.03047939672771178, 0.04267115541879649, 0.03047939672771178,
0.04267115541879649, 0.423320678280269
]
assert therm_zone.weightfactor_win == [
0.0, 0.27777777777777778, 0.44444444444444453, 0.27777777777777778,
0.0
]
def test_ahu_threshold_false(self):
prj.set_default()
helptest.building_test2(prj)
use_cond = prj.buildings[-1].thermal_zones[-1].use_conditions
use_cond.with_ahu = False
with pytest.raises(Exception):
use_cond.with_ideal_thresholds = True
def test_calc_equivalent_res_win(self):
'''test of calc_equivalent_res, win'''
prj.set_default()
helptest.building_test2(prj)
therm_zone = prj.buildings[-1].thermal_zones[-1]
therm_zone.windows[0].calc_equivalent_res()
assert round(therm_zone.windows[0].r1, 3) == 0.072
def test_calc_equivalent_res_win(self):
'''test of calc_equivalent_res, win'''
prj.set_default()
helptest.building_test2(prj)
therm_zone = prj.buildings[-1].thermal_zones[-1]
therm_zone.windows[0].calc_equivalent_res()
assert round(therm_zone.windows[0].r1, 3) == 0.072
def test_heating_load(self):
'''test of heating_load'''
prj.set_default()
helptest.building_test2(prj)
prj.buildings[-1].thermal_zones[-1].calc_zone_parameters(
number_of_elements=2, merge_windows=True)
prj.buildings[-1].thermal_zones[-1].calc_heat_load()
assert round(prj.buildings[-1].thermal_zones[-1].heating_load,
4) == 15210.3459
def test_heating_load(self):
'''test of heating_load'''
prj.set_default()
helptest.building_test2(prj)
prj.buildings[-1].thermal_zones[-1].calc_zone_parameters(number_of_elements=2,
merge_windows=True)
prj.buildings[-1].thermal_zones[-1].calc_heat_load()
assert round(
prj.buildings[-1].thermal_zones[-1].heating_load,
4) == 15210.3459
def test_ua_value(self):
'''test of ua_value'''
prj.set_default()
helptest.building_test2(prj)
therm_zone = prj.buildings[-1].thermal_zones[-1]
therm_zone.outer_walls[0].calc_ua_value()
assert round(therm_zone.outer_walls[0].ua_value,
15) == 4.132453174475393
def test_calc_building_parameter(self):
'''test of calc_building_parameter'''
prj.set_default()
helptest.building_test2(prj)
prj.buildings[-1].calc_building_parameter(number_of_elements=2,
merge_windows=True,
used_library='AixLib')
assert round(prj.buildings[-1].volume, 1) == 490.0
assert round(prj.buildings[-1].sum_heating_load, 4) == 15210.3459
def test_ua_value(self):
'''test of ua_value'''
prj.set_default()
helptest.building_test2(prj)
therm_zone = prj.buildings[-1].thermal_zones[-1]
therm_zone.outer_walls[0].calc_ua_value()
assert round(
therm_zone.outer_walls[0].ua_value,
15) == 4.132453174475393
def test_calc_all_buildings(self):
'''test of calc_all_buildings, no calculation verification'''
helptest.building_test2(prj)
helptest.building_test2(prj)
prj.calc_all_buildings(number_of_elements=2,
merge_windows=True,
used_library='AixLib')
prj.calc_all_buildings(number_of_elements=2,
merge_windows=False,
used_library='AixLib')
def test_calc_all_buildings(self):
'''test of calc_all_buildings, no calculation verification'''
helptest.building_test2(prj)
helptest.building_test2(prj)
prj.calc_all_buildings(number_of_elements=2,
merge_windows=True,
used_library='AixLib')
prj.calc_all_buildings(number_of_elements=2,
merge_windows=False,
used_library='AixLib')
def test_set_specific_wall_area(self):
'''test of set_specific_wall_area'''
prj.set_default()
helptest.building_test2(prj)
prj.buildings[-1].set_specific_wall_area(
prj.buildings[-1].thermal_zones[-1],
prj.buildings[-1].thermal_zones[-1].outer_walls[1], 500)
therm_zone = prj.buildings[-1].thermal_zones[-1]
assert round(therm_zone.outer_walls[0].area, 2) == 10.0
assert round(therm_zone.outer_walls[1].area, 1) == 500
def test_set_specific_wall_area(self):
'''test of set_specific_wall_area'''
prj.set_default()
helptest.building_test2(prj)
prj.buildings[-1].set_specific_wall_area(
prj.buildings[-1].thermal_zones[-1],
prj.buildings[-1].thermal_zones[-1].outer_walls[1],
500)
therm_zone = prj.buildings[-1].thermal_zones[-1]
assert round(therm_zone.outer_walls[0].area, 2) == 10.0
assert round(therm_zone.outer_walls[1].area, 1) == 500
def test_calc_building_parameter(self):
'''test of calc_building_parameter'''
prj.set_default()
helptest.building_test2(prj)
prj.buildings[-1].calc_building_parameter(number_of_elements=2,
merge_windows=True,
used_library='AixLib')
assert round(prj.buildings[-1].volume, 1) == 490.0
assert round(
prj.buildings[-1].sum_heating_load, 4) == 15210.3459
def test_calc_all_buildings(self):
'''test of calc_all_buildings, no calculation verification'''
helptest.building_test2(prj)
helptest.building_test2(prj)
prj.number_of_elements_calc = 2
prj.merge_windows_calc = True
prj.used_library_calc = 'AixLib'
prj.calc_all_buildings()
prj.number_of_elements_calc = 2
prj.merge_windows_calc = False
prj.used_library_calc = 'AixLib'
prj.calc_all_buildings()
def test_calc_equivalent_res_wall(self):
'''test of calc_equivalent_res, wall'''
prj.set_default()
helptest.building_test2(prj)
therm_zone = prj.buildings[-1].thermal_zones[-1]
therm_zone.outer_walls[0].calc_equivalent_res()
#parameters for outwall
assert round(therm_zone.outer_walls[0].c1, 6) == 111237.213205
assert round(therm_zone.outer_walls[0].c2, 7) == 59455.3856787
assert round(therm_zone.outer_walls[0].r1, 13) == 0.0330465078788
assert round(therm_zone.outer_walls[0].r2, 13) == 0.0549256129353
assert round(therm_zone.outer_walls[0].r3, 12) == 0.137027879186
assert round(therm_zone.outer_walls[0].c1_korr, 6) == 111237.213205
def test_calc_equivalent_res_wall(self):
'''test of calc_equivalent_res, wall'''
prj.set_default()
helptest.building_test2(prj)
therm_zone = prj.buildings[-1].thermal_zones[-1]
therm_zone.outer_walls[0].calc_equivalent_res()
#parameters for outwall
assert round(therm_zone.outer_walls[0].c1, 6) == 111237.213205
assert round(therm_zone.outer_walls[0].c2, 7) == 59455.3856787
assert round(therm_zone.outer_walls[0].r1, 13) == 0.0330465078788
assert round(therm_zone.outer_walls[0].r2, 13) == 0.0549256129353
assert round(therm_zone.outer_walls[0].r3, 12) == 0.137027879186
assert round(therm_zone.outer_walls[0].c1_korr, 6) == 111237.213205
def test_calc_weightfactor(self):
'''test of calc_weightfactor'''
prj.set_default()
helptest.building_test2(prj)
prj.buildings[-1].calc_building_parameter(number_of_elements=2,
merge_windows=True,
used_library='AixLib')
therm_zone = prj.buildings[-1].thermal_zones[-1]
assert therm_zone.weightfactor_ow == [0.024530650180761254,
0.03434291025306576,
0.024530650180761254,
0.03434291025306576,
0.3407000330729792]
assert therm_zone.weightfactor_win == [0.0,
0.054214642472656345,
0.08674342795625017,
0.054214642472656345,
0.0]
prj.buildings[-1].thermal_zones[-1].weightfactor_ow = []
prj.buildings[-1].thermal_zones[-1].weightfactor_win = []
prj.buildings[-1].calc_building_parameter(number_of_elements=2,
merge_windows=False,
used_library='AixLib')
therm_zone = prj.buildings[-1].thermal_zones[-1]
assert therm_zone.weightfactor_ow == [0.03047939672771178,
0.04267115541879649,
0.03047939672771178,
0.04267115541879649,
0.423320678280269]
assert therm_zone.weightfactor_win == [0.0,
0.27777777777777778,
0.44444444444444453,
0.27777777777777778,
0.0]
def test_calc_two_element(self):
'''test of calc_two_element'''
prj.set_default()
helptest.building_test2(prj)
therm_zone = prj.buildings[-1].thermal_zones[-1]
therm_zone.calc_zone_parameters(number_of_elements=2,
merge_windows=True)
assert round(therm_zone.area_ow, 1) == 328.0
assert round(therm_zone.ua_value_ow, 16) == 135.5818558809656
assert round(therm_zone.r_conv_inner_ow, 16) == 0.0016512549537649
assert round(therm_zone.r_rad_inner_ow, 16) == 0.000609756097561
assert round(therm_zone.r_conv_outer_ow, 9) == 0.001041667
assert round(therm_zone.alpha_conv_inner_ow, 5) == 1.84634
assert round(therm_zone.alpha_rad_inner_ow, 1) == 5.0
assert round(therm_zone.r1_win, 1) == 301.5
assert round(therm_zone.r1_ow, 15) == 0.000772773294534
assert round(therm_zone.r1_iw, 15) == 0.009719561140816
assert round(therm_zone.r_rest_ow, 15) == 0.004740706924836
therm_zone = prj.buildings[-1].thermal_zones[-1]
therm_zone.calc_zone_parameters(number_of_elements=2,
merge_windows=False)
assert round(therm_zone.area_ow, 1) == 328.0
assert round(therm_zone.ua_value_ow, 16) == 135.5818558809656
assert round(therm_zone.r_conv_inner_ow, 16) == 0.0016512549537649
assert round(therm_zone.r_rad_inner_ow, 16) == 0.000609756097561
assert round(therm_zone.r_conv_outer_ow, 9) == 0.001041667
assert round(therm_zone.alpha_conv_inner_ow, 5) == 1.84634
assert round(therm_zone.alpha_rad_inner_ow, 1) == 5.0
assert round(therm_zone.r1_win, 15) == 0.02212271973466
assert round(therm_zone.r1_ow, 15) == 0.001007515484109
assert round(therm_zone.r1_iw, 15) == 0.009719561140816
assert round(therm_zone.r_rest_ow, 15) == 0.005922787404456
def test_calc_two_element(self):
'''test of calc_two_element'''
prj.set_default()
helptest.building_test2(prj)
therm_zone = prj.buildings[-1].thermal_zones[-1]
therm_zone.calc_zone_parameters(number_of_elements=2,
merge_windows=True)
assert round(therm_zone.area_ow, 1) == 328.0
assert round(therm_zone.ua_value_ow, 16) == 135.5818558809656
assert round(therm_zone.r_conv_inner_ow, 16) == 0.0016512549537649
assert round(therm_zone.r_rad_inner_ow, 16) == 0.000609756097561
assert round(therm_zone.r_conv_outer_ow, 9) == 0.001041667
assert round(therm_zone.alpha_conv_inner_ow, 5) == 1.84634
assert round(therm_zone.alpha_rad_inner_ow, 1) == 5.0
assert round(therm_zone.r1_win, 1) == 301.5
assert round(therm_zone.r1_ow, 15) == 0.000772773294534
assert round(therm_zone.r1_iw, 15) == 0.009719561140816
assert round(therm_zone.r_rest_ow, 15) == 0.004740706924836
therm_zone = prj.buildings[-1].thermal_zones[-1]
therm_zone.calc_zone_parameters(number_of_elements=2,
merge_windows=False)
assert round(therm_zone.area_ow, 1) == 328.0
assert round(therm_zone.ua_value_ow, 16) == 135.5818558809656
assert round(therm_zone.r_conv_inner_ow, 16) == 0.0016512549537649
assert round(therm_zone.r_rad_inner_ow, 16) == 0.000609756097561
assert round(therm_zone.r_conv_outer_ow, 9) == 0.001041667
assert round(therm_zone.alpha_conv_inner_ow, 5) == 1.84634
assert round(therm_zone.alpha_rad_inner_ow, 1) == 5.0
assert round(therm_zone.r1_win, 15) == 0.02212271973466
assert round(therm_zone.r1_ow, 15) == 0.001007515484109
assert round(therm_zone.r1_iw, 15) == 0.009719561140816
assert round(therm_zone.r_rest_ow, 15) == 0.005922787404456
def test_ahu_threshold_true(self):
prj.set_default()
helptest.building_test2(prj)
use_cond = prj.buildings[-1].thermal_zones[-1].use_conditions
use_cond.with_ahu = True
use_cond.with_ideal_thresholds = True
def test_sum_building_elements(self):
'''test of combine_building_elements'''
prj.set_default()
helptest.building_test2(prj)
#execute zone parameters for therm_zone
therm_zone = prj.buildings[-1].thermal_zones[-1]
for out_wall in therm_zone.outer_walls:
out_wall.calc_equivalent_res()
out_wall.calc_ua_value()
for in_wall in therm_zone.inner_walls:
in_wall.calc_equivalent_res()
in_wall.calc_ua_value()
for win in therm_zone.windows:
win.calc_equivalent_res()
win.calc_ua_value()
prj.buildings[-1].thermal_zones[-1].sum_building_elements()
therm_zone = prj.buildings[-1].thermal_zones[-1]
# innerwall
assert round(therm_zone.ua_value_iw, 16) == 13.443390622904332
assert round(therm_zone.area_iw, 1) == 34.0
assert round(therm_zone.r_conv_inner_iw, 18) == 0.010893246187363833
assert round(therm_zone.r_rad_inner_iw, 19) == 0.0058823529411764705
assert round(therm_zone.r_comb_inner_iw, 19) == 0.003819709702062643
assert round(therm_zone.alpha_conv_iw, 1) == 2.7
assert round(therm_zone.alpha_rad_iw, 1) == 5.0
assert round(therm_zone.alpha_comb_iw, 1) == 7.7
# outerwall
assert round(therm_zone.ua_value_ow, 16) == 19.83577523748189
assert round(therm_zone.area_ow, 1) == 48.0
assert round(therm_zone.r_conv_inner_ow, 19) == 0.007716049382716048
assert round(therm_zone.r_rad_inner_ow, 18) == 0.004166666666666667
assert round(therm_zone.r_comb_inner_ow, 20) == 0.0027056277056277055
assert round(therm_zone.r_conv_outer_ow, 20) == 0.0010416666666666667
assert round(therm_zone.r_rad_outer_ow, 18) == 0.004166666666666667
assert round(therm_zone.r_comb_outer_ow, 20) == 0.0008333333333333334
assert round(therm_zone.alpha_conv_inner_ow, 5) == 2.7
assert round(therm_zone.alpha_rad_inner_ow, 5) == 5.0
assert round(therm_zone.alpha_comb_inner_ow, 5) == 7.7
assert round(therm_zone.alpha_conv_outer_ow, 1) == 20.0
assert round(therm_zone.alpha_rad_outer_ow, 5) == 5.0
assert round(therm_zone.alpha_comb_outer_ow, 1) == 25.0
# groundfloor
assert round(therm_zone.ua_value_gf, 16) == 58.351477449455686
assert round(therm_zone.area_gf, 1) == 140.0
assert round(therm_zone.r_conv_inner_gf, 19) == 0.004201680672268907
assert round(therm_zone.r_rad_inner_gf, 18) == 0.001428571428571429
assert round(therm_zone.r_comb_inner_gf, 20) == 0.0010660980810234541
assert round(therm_zone.alpha_conv_inner_gf, 5) == 1.7
assert round(therm_zone.alpha_rad_inner_gf, 5) == 5.0
assert round(therm_zone.alpha_comb_inner_gf, 5) == 6.7
# outerwall
assert round(therm_zone.ua_value_rt, 16) == 57.394603194028036
assert round(therm_zone.area_rt, 1) == 140.0
assert round(therm_zone.r_conv_inner_rt, 19) == 0.004201680672268907
assert round(therm_zone.r_rad_inner_rt, 18) == 0.001428571428571429
assert round(therm_zone.r_comb_inner_rt, 20) == 0.0010660980810234541
assert round(therm_zone.r_conv_outer_rt, 20) == 0.00035714285714285714
assert round(therm_zone.r_rad_outer_rt, 18) == 0.001428571428571429
assert round(therm_zone.r_comb_outer_rt, 20) == 0.00028571428571428574
assert round(therm_zone.alpha_conv_inner_rt, 5) == 1.7
assert round(therm_zone.alpha_rad_inner_rt, 5) == 5.0
assert round(therm_zone.alpha_comb_inner_rt, 5) == 6.7
assert round(therm_zone.alpha_conv_outer_rt, 1) == 20.0
assert round(therm_zone.alpha_rad_outer_rt, 5) == 5.0
assert round(therm_zone.alpha_comb_outer_rt, 1) == 25.0
#window
assert round(therm_zone.ua_value_win, 16) == 32.87895310796074
assert round(therm_zone.area_win, 1) == 18.0
assert round(therm_zone.r_conv_inner_win, 19) == 0.032679738562091505
assert round(therm_zone.r_rad_inner_win, 4) == 0.0111
assert round(therm_zone.r_comb_inner_win, 19) == 0.008291873963515755
assert round(therm_zone.r_conv_outer_win, 5) == 0.00278
assert round(therm_zone.r_rad_outer_win, 4) == 0.0111
assert round(therm_zone.r_comb_outer_win, 4) == 0.0022
assert round(therm_zone.alpha_conv_inner_win, 1) == 1.7
assert round(therm_zone.alpha_comb_outer_win, 1) == 25.0
assert round(therm_zone.alpha_conv_outer_win, 1) == 20.0
assert round(therm_zone.weighted_g_value, 3) == 0.789
def test_load_use_conditions_new(self):
"""Test of load_use_conditions, no parameter checking."""
prj.set_default()
helptest.building_test2(prj)
use_cond = prj.buildings[-1].thermal_zones[-1].use_conditions
use_cond.load_use_conditions("Living", data_class=prj.data)
def test_save_citygml(self):
'''test of save_gml'''
helptest.building_test2(prj)
prj.save_citygml("unitTest")
prj.set_default()
def test_get_inner_wall_area(self):
'''test of get_inner_wall_area'''
prj.set_default()
helptest.building_test2(prj)
sum_area = prj.buildings[-1].get_inner_wall_area()
assert round(sum_area, 1) == 34.0
def test_sum_building_elements(self):
'''test of combine_building_elements'''
prj.set_default()
helptest.building_test2(prj)
#execute zone parameters for therm_zone
therm_zone = prj.buildings[-1].thermal_zones[-1]
for out_wall in therm_zone.outer_walls:
out_wall.calc_equivalent_res()
out_wall.calc_ua_value()
for in_wall in therm_zone.inner_walls:
in_wall.calc_equivalent_res()
in_wall.calc_ua_value()
for win in therm_zone.windows:
win.calc_equivalent_res()
win.calc_ua_value()
prj.buildings[-1].thermal_zones[-1].sum_building_elements()
therm_zone = prj.buildings[-1].thermal_zones[-1]
# innerwall
assert round(therm_zone.ua_value_iw, 16) == 13.443390622904332
assert round(therm_zone.area_iw, 1) == 34.0
assert round(therm_zone.r_conv_inner_iw, 18) == 0.010893246187363833
assert round(therm_zone.r_rad_inner_iw, 19) == 0.0058823529411764705
assert round(therm_zone.r_comb_inner_iw, 19) == 0.003819709702062643
assert round(therm_zone.alpha_conv_iw, 1) == 2.7
assert round(therm_zone.alpha_rad_iw, 1) == 5.0
assert round(therm_zone.alpha_comb_iw, 1) == 7.7
# outerwall
assert round(therm_zone.ua_value_ow, 16) == 19.83577523748189
assert round(therm_zone.area_ow, 1) == 48.0
assert round(therm_zone.r_conv_inner_ow, 19) == 0.007716049382716048
assert round(therm_zone.r_rad_inner_ow, 18) == 0.004166666666666667
assert round(therm_zone.r_comb_inner_ow, 20) == 0.0027056277056277055
assert round(therm_zone.r_conv_outer_ow, 20) == 0.0010416666666666667
assert round(therm_zone.r_rad_outer_ow, 18) == 0.004166666666666667
assert round(therm_zone.r_comb_outer_ow, 20) == 0.0008333333333333334
assert round(therm_zone.alpha_conv_inner_ow, 5) == 2.7
assert round(therm_zone.alpha_rad_inner_ow, 5) == 5.0
assert round(therm_zone.alpha_comb_inner_ow, 5) == 7.7
assert round(therm_zone.alpha_conv_outer_ow, 1) == 20.0
assert round(therm_zone.alpha_rad_outer_ow, 5) == 5.0
assert round(therm_zone.alpha_comb_outer_ow, 1) == 25.0
# groundfloor
assert round(therm_zone.ua_value_gf, 16) == 58.351477449455686
assert round(therm_zone.area_gf, 1) == 140.0
assert round(therm_zone.r_conv_inner_gf, 19) == 0.004201680672268907
assert round(therm_zone.r_rad_inner_gf, 18) == 0.001428571428571429
assert round(therm_zone.r_comb_inner_gf, 20) == 0.0010660980810234541
assert round(therm_zone.alpha_conv_inner_gf, 5) == 1.7
assert round(therm_zone.alpha_rad_inner_gf, 5) == 5.0
assert round(therm_zone.alpha_comb_inner_gf, 5) == 6.7
# outerwall
assert round(therm_zone.ua_value_rt, 16) == 57.394603194028036
assert round(therm_zone.area_rt, 1) == 140.0
assert round(therm_zone.r_conv_inner_rt, 19) == 0.004201680672268907
assert round(therm_zone.r_rad_inner_rt, 18) == 0.001428571428571429
assert round(therm_zone.r_comb_inner_rt, 20) == 0.0010660980810234541
assert round(therm_zone.r_conv_outer_rt, 20) == 0.00035714285714285714
assert round(therm_zone.r_rad_outer_rt, 18) == 0.001428571428571429
assert round(therm_zone.r_comb_outer_rt, 20) == 0.00028571428571428574
assert round(therm_zone.alpha_conv_inner_rt, 5) == 1.7
assert round(therm_zone.alpha_rad_inner_rt, 5) == 5.0
assert round(therm_zone.alpha_comb_inner_rt, 5) == 6.7
assert round(therm_zone.alpha_conv_outer_rt, 1) == 20.0
assert round(therm_zone.alpha_rad_outer_rt, 5) == 5.0
assert round(therm_zone.alpha_comb_outer_rt, 1) == 25.0
#window
assert round(therm_zone.ua_value_win, 16) == 32.87895310796074
assert round(therm_zone.area_win, 1) == 18.0
assert round(therm_zone.r_conv_inner_win, 19) == 0.032679738562091505
assert round(therm_zone.r_rad_inner_win, 4) == 0.0111
assert round(therm_zone.r_comb_inner_win, 19) == 0.008291873963515755
assert round(therm_zone.r_conv_outer_win, 5) == 0.00278
assert round(therm_zone.r_rad_outer_win, 4) == 0.0111
assert round(therm_zone.r_comb_outer_win, 4) == 0.0022
assert round(therm_zone.alpha_conv_inner_win, 1) == 1.7
assert round(therm_zone.alpha_comb_outer_win, 1) == 25.0
assert round(therm_zone.alpha_conv_outer_win, 1) == 20.0
assert round(therm_zone.weighted_g_value, 3) == 0.789
def test_get_inner_wall_area(self):
'''test of get_inner_wall_area'''
prj.set_default()
helptest.building_test2(prj)
sum_area = prj.buildings[-1].get_inner_wall_area()
assert round(sum_area, 1) == 34.0
def test_save_citygml(self):
'''test of save_gml'''
helptest.building_test2(prj)
prj.save_citygml("unitTest")
prj.set_default()