Python SandBox.elude方法代码示例

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class CheckScripts(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox()
        self.scripts = 0

    def tearDown(self):
        print "Tested %g scripts" % (self.scripts,)
        self.sandbox.erase()

    def testScripts(self):
        script_path = self.sandbox.path_to_jsbsim_file('scripts')
        for f in os.listdir(self.sandbox.elude(script_path)):
            fullpath = os.path.join(self.sandbox.elude(script_path), f)

            # Does f contains a JSBSim script ?
            if not CheckXMLFile(fullpath, 'runscript'):
                continue

            fdm = CreateFDM(self.sandbox)
            self.assertTrue(fdm.load_script(os.path.join(script_path, f)),
                            msg="Failed to load script %s" % (fullpath,))
            fdm.run_ic()

            self.scripts += 1
            del fdm

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class TestScriptOutput(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox()
        self.script_path = self.sandbox.path_to_jsbsim_file('scripts',
                                                            'c1722.xml')

    def tearDown(self):
        self.sandbox.erase()

    def test_no_output(self):
        fdm = CreateFDM(self.sandbox)
        fdm.load_script(self.script_path)
        fdm.run_ic()
        ExecuteUntil(fdm, 10.)

        self.assertFalse(self.sandbox.exists('output.csv'),
                         msg="Results have unexpectedly been written to 'output.csv'")

    def test_output_from_file(self):
        tree = et.parse(self.sandbox.elude(self.script_path))
        output_tag = et.SubElement(tree.getroot(), 'output')
        output_tag.attrib['file'] = self.sandbox.elude(self.sandbox.path_to_jsbsim_file('tests', 'output.xml'))
        tree.write(self.sandbox('c1722_0.xml'))

        fdm = CreateFDM(self.sandbox)
        fdm.load_script('c1722_0.xml')
        fdm.run_ic()
        ExecuteUntil(fdm, 10.)

        self.assertTrue(self.sandbox.exists('output.csv'),
                        msg="The file 'output.csv' has not been created")

    def test_output(self):
        tree = et.parse(self.sandbox.elude(self.script_path))
        output_tag = et.SubElement(tree.getroot(), 'output')
        output_tag.attrib['name'] = 'test.csv'
        output_tag.attrib['type'] = 'CSV'
        output_tag.attrib['rate'] = '10'
        property_tag = et.SubElement(output_tag, 'property')
        property_tag.text = 'position/vrp-radius-ft'
        tree.write(self.sandbox('c1722_0.xml'))

        fdm = CreateFDM(self.sandbox)
        fdm.load_script('c1722_0.xml')
        fdm.run_ic()
        ExecuteUntil(fdm, 10.)

        self.assertTrue(self.sandbox.exists(output_tag.attrib['name']),
                        msg="The file 'output.csv' has not been created")
        orig = pd.read_csv(self.sandbox('JSBout172B.csv'))
        test = pd.read_csv(self.sandbox('test.csv'))
        self.assertEqual(np.max(orig['Time']-test['Time']), 0.0)
        pname = '/fdm/jsbsim/' + property_tag.text
        self.assertEqual(np.max(orig[pname]-test[pname]), 0.0)

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class CheckTrim(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox()

    def tearDown(self):
        self.sandbox.erase()

    def test_trim_doesnt_ignite_rockets(self):
        # Run a longitudinal trim with a rocket equipped with solid propellant
        # boosters (aka SRBs). The trim algorithm will try to reach a vertical
        # equilibrium by tweaking the throttle but since the rocket is nose up,
        # the trim cannot converge. As a result the algorithm will set full
        # throttle which will result in the SRBs ignition if the integration is
        # not suspended. This bug has been reported in FlightGear and this test
        # is checking that there is no regression.

        fdm = CreateFDM(self.sandbox)
        fdm.load_model('J246')
        aircraft_path = self.sandbox.elude(self.sandbox.path_to_jsbsim_file('aircraft'))
        fdm.load_ic(os.path.join(aircraft_path, 'J246', 'LC39'), False)
        fdm.run_ic()

        # Check that the SRBs are not ignited
        self.assertEqual(fdm['propulsion/engine[0]/thrust-lbs'], 0.0)
        self.assertEqual(fdm['propulsion/engine[1]/thrust-lbs'], 0.0)

        try:
            fdm['simulation/do_simple_trim'] = 1
        except RuntimeError as e:
            # The trim cannot succeed. Just make sure that the raised exception
            # is due to the trim failure otherwise rethrow.
            if e.args[0] != 'Trim Failed':
                raise

        # Check that the trim did not ignite the SRBs
        self.assertEqual(fdm['propulsion/engine[0]/thrust-lbs'], 0.0)
        self.assertEqual(fdm['propulsion/engine[1]/thrust-lbs'], 0.0)

    def test_trim_on_ground(self):
        fdm = CreateFDM(self.sandbox)
        fdm.load_model('c172x')
        fdm['ic/theta-deg'] = 10.0
        fdm.run_ic()
        fdm['ic/theta-deg'] = 0.0
        fdm['simulation/do_simple_trim'] = 2

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class CheckAircrafts(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox()

    def tearDown(self):
        self.sandbox.erase()

    def testAircrafts(self):
        aircraft_path = self.sandbox.elude(self.sandbox.path_to_jsbsim_file('aircraft'))
        for d in os.listdir(aircraft_path):
            fullpath = os.path.join(aircraft_path, d)

            # Is d a directory ?
            if not os.path.isdir(fullpath):
                continue

            f = os.path.join(aircraft_path, d, append_xml(d))

            # Is f an aircraft definition file ?
            if not CheckXMLFile(f, 'fdm_config'):
                continue

            if d in ('blank'):
                continue

            fdm = CreateFDM(self.sandbox)
            self.assertTrue(fdm.load_model(d),
                            msg='Failed to load aircraft %s' % (d,))

            for f in os.listdir(fullpath):
                f = os.path.join(aircraft_path, d, f)
                if CheckXMLFile(f, 'initialize'):
                    self.assertTrue(fdm.load_ic(f, False),
                                    msg='Failed to load IC %s for aircraft %s' %(f,d))
                    try:
                        fdm.run_ic()
                    except RuntimeError:
                        self.fail('Failed to run IC %s for aircraft %s' %(f,d))

                    break

            del fdm

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class TestHoldDown(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox()

    def tearDown(self):
        self.sandbox.erase()

    def test_static_hold_down(self):
        fdm = CreateFDM(self.sandbox)
        fdm.load_model('J246')
        aircraft_path = self.sandbox.elude(self.sandbox.path_to_jsbsim_file('aircraft'))
        fdm.load_ic(os.path.join(aircraft_path, 'J246', 'LC39'), False)
        fdm.set_property_value('forces/hold-down', 1.0)
        fdm.run_ic()
        h0 = fdm.get_property_value('position/h-sl-ft')
        t = 0.0

        while t < 420.0:
            fdm.run()
            t = fdm.get_property_value('simulation/sim-time-sec')
            self.assertAlmostEqual(fdm.get_property_value('position/h-sl-ft'),
                                   h0, delta=1E-5)

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class TestOrbitCheckCase(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox('check_cases', 'orbit')

    def tearDown(self):
        self.sandbox.erase()

    def testOrbitCheckCase(self):
        os.environ['JSBSIM_DEBUG'] = str(0)
        fdm = CreateFDM(self.sandbox)
        fdm.load_script(self.sandbox.path_to_jsbsim_file('scripts', 'ball_orbit.xml'))
        fdm.run_ic()

        while fdm.run():
            pass

        ref, current = Table(), Table()
        ref.ReadCSV(self.sandbox.elude(self.sandbox.path_to_jsbsim_file('logged_data', 'BallOut.csv')))
        current.ReadCSV(self.sandbox('BallOut.csv'))

        diff = ref.compare(current)
        self.longMessage = True
        self.assertTrue(diff.empty(), msg='\n'+repr(diff))

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class TestICOverride(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox()

    def tearDown(self):
        self.sandbox.erase()

    def test_IC_override(self):
        # Run the script c1724.xml
        script_path = self.sandbox.path_to_jsbsim_file('scripts', 'c1724.xml')

        fdm = CreateFDM(self.sandbox)
        fdm.load_script(script_path)

        vt0 = fdm.get_property_value('ic/vt-kts')

        fdm.run_ic()
        ExecuteUntil(fdm, 1.0)

        # Check that the total velocity exported in the output file matches the IC
        # defined in the initialization file
        ref = Table()
        ref.ReadCSV(self.sandbox('JSBout172B.csv'))

        for col, title in enumerate(ref._lines[0]):
            if title == 'V_{Total} (ft/s)':
                self.assertTrue(abs(ref._lines[1][col] - (vt0 / fpstokts)) < 1E-5,
                                msg="Original script %s\nThe total velocity is %f. The value %f was expected" % (script_path, ref._lines[1][col], vt0 / fpstokts))
                break
        else:
            self.fail("The total velocity is not exported in %s" % (script_path,))

        # Now, we will re-run the same test but the IC will be overridden in the scripts
        # The initial total velocity is increased by 1 ft/s
        vt0 += 1.0

        # The script c1724.xml is loaded and the following line is added in it:
        #    <property value="..."> ic/vt-kts </property>
        # The modified script is then saved with the named 'c1724_0.xml'
        tree = et.parse(self.sandbox.elude(script_path))
        run_tag = tree.getroot().find("./run")
        property = et.SubElement(run_tag, 'property')
        property.text = 'ic/vt-kts'
        property.attrib['value'] = str(vt0)
        tree.write(self.sandbox('c1724_0.xml'))

        # Re-run the same check than above. This time we are making sure than the total
        # initial velocity is increased by 1 ft/s
        self.sandbox.delete_csv_files()

        # Because JSBSim internals use static pointers, we cannot rely on Python
        # garbage collector to decide when the FDM is destroyed otherwise we can
        # get dangling pointers.
        del fdm

        fdm = CreateFDM(self.sandbox)
        fdm.load_script('c1724_0.xml')

        self.assertTrue(abs(fdm.get_property_value('ic/vt-kts') - vt0) < 1E-5,
                        msg="Modified script %s\nThe total velocity in the IC (%f) is different from %f" % (self.sandbox('JSBout172B.csv'), fdm.get_property_value('ic/vt-kts'), vt0))

        fdm.run_ic()
        ExecuteUntil(fdm, 1.0)

        mod = Table()
        mod.ReadCSV(self.sandbox('JSBout172B.csv'))

        for col, title in enumerate(mod._lines[0]):
            if title == 'V_{Total} (ft/s)':
                self.assertTrue(abs(mod._lines[1][col] - (vt0 / fpstokts)) < 1E-5,
                                msg="Modified script %s\nThe total velocity is %f. The value %f was expected" % (self.sandbox('JSBout172B.csv'), mod._lines[1][col], vt0 / fpstokts))
                break
        else:
            self.fail("The total velocity is not exported in %s" % (sandbox('JSBout172B.csv'),))

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class TestInitialConditions(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox()

    def tearDown(self):
        self.sandbox.erase()

    def test_initial_conditions(self):
        # A dictionary that contains the XML tags to extract from the IC file
        # along with the name of the properties that contain the values
        # extracted from the IC file.
        vars = [{'tag': 'vt', 'unit': convtofps, 'default_unit': 'FT/SEC',
                 'ic_prop': 'ic/vt-fps', 'prop': 'velocities/vt-fps',
                 'CSV_header': 'V_{Total} (ft/s)'},
                {'tag': 'ubody', 'unit': convtofps, 'default_unit': 'FT/SEC',
                 'ic_prop': 'ic/u-fps', 'prop': 'velocities/u-fps',
                 'CSV_header': 'UBody'},
                {'tag': 'vbody', 'unit': convtofps, 'default_unit': 'FT/SEC',
                 'ic_prop': 'ic/v-fps', 'prop': 'velocities/v-fps',
                 'CSV_header': 'VBody'},
                {'tag': 'wbody', 'unit': convtofps, 'default_unit': 'FT/SEC',
                 'ic_prop': 'ic/w-fps', 'prop': 'velocities/w-fps',
                 'CSV_header': 'WBody'},
                {'tag': 'vnorth', 'unit': convtofps, 'default_unit': 'FT/SEC',
                 'ic_prop': 'ic/vn-fps', 'prop': 'velocities/v-north-fps',
                 'CSV_header': 'V_{North} (ft/s)'},
                {'tag': 'veast', 'unit': convtofps, 'default_unit': 'FT/SEC',
                 'ic_prop': 'ic/ve-fps', 'prop': 'velocities/v-east-fps',
                 'CSV_header': 'V_{East} (ft/s)'},
                {'tag': 'vdown', 'unit': convtofps, 'default_unit': 'FT/SEC',
                 'ic_prop': 'ic/vd-fps', 'prop': 'velocities/v-down-fps',
                 'CSV_header': 'V_{Down} (ft/s)'},
                {'tag': 'latitude', 'unit': convtodeg, 'default_unit': 'RAD',
                 'ic_prop': 'ic/lat-gc-deg', 'prop': 'position/lat-gc-deg',
                 'CSV_header': 'Latitude (deg)'},
                {'tag': 'longitude', 'unit': convtodeg, 'default_unit': 'RAD',
                 'ic_prop': 'ic/long-gc-deg', 'prop': 'position/long-gc-deg',
                 'CSV_header': 'Longitude (deg)'},
                {'tag': 'altitude', 'unit': convtoft, 'default_unit': 'FT',
                 'ic_prop': 'ic/h-agl-ft', 'prop': 'position/h-agl-ft',
                 'CSV_header': 'Altitude AGL (ft)'},
                {'tag': 'altitudeAGL', 'unit': convtoft, 'default_unit': 'FT',
                 'ic_prop': 'ic/h-agl-ft', 'prop': 'position/h-agl-ft',
                 'CSV_header': 'Altitude AGL (ft)'},
                {'tag': 'altitudeMSL', 'unit': convtoft, 'default_unit': 'FT',
                 'ic_prop': 'ic/h-sl-ft', 'prop': 'position/h-sl-ft',
                 'CSV_header': 'Altitude ASL (ft)'},
                {'tag': 'phi', 'unit': convtodeg, 'default_unit': 'RAD',
                 'ic_prop': 'ic/phi-deg', 'prop': 'attitude/phi-deg',
                 'CSV_header': 'Phi (deg)'},
                {'tag': 'theta', 'unit': convtodeg, 'default_unit': 'RAD',
                 'ic_prop': 'ic/theta-deg', 'prop': 'attitude/theta-deg',
                 'CSV_header': 'Theta (deg)'},
                {'tag': 'psi', 'unit': convtodeg, 'default_unit': 'RAD',
                 'ic_prop': 'ic/psi-true-deg', 'prop': 'attitude/psi-deg',
                 'CSV_header': 'Psi (deg)'},
                {'tag': 'elevation', 'unit': convtoft, 'default_unit': 'FT',
                 'ic_prop': 'ic/terrain-elevation-ft', 'prop': 'position/terrain-elevation-asl-ft',
                 'CSV_header': 'Terrain Elevation (ft)'}]

        script_path = self.sandbox.path_to_jsbsim_file('scripts')
        for f in os.listdir(self.sandbox.elude(script_path)):
            # TODO These scripts need some further investigation
            if f in ('ZLT-NT-moored-1.xml',):
                continue
            fullpath = os.path.join(self.sandbox.elude(script_path), f)

            # Does f contains a JSBSim script ?
            if not CheckXMLFile(fullpath, 'runscript'):
                continue

            # Read the IC file name from the script
            tree = et.parse(fullpath)
            root = tree.getroot()
            use_tag = root.find('use')

            aircraft_name = use_tag.attrib['aircraft']
            aircraft_path = os.path.join('aircraft', aircraft_name)
            path_to_jsbsim_aircrafts = self.sandbox.elude(self.sandbox.path_to_jsbsim_file(aircraft_path))

            IC_file = append_xml(use_tag.attrib['initialize'])
            IC_tree = et.parse(os.path.join(path_to_jsbsim_aircrafts, IC_file))
            IC_root = IC_tree.getroot()

            # Only testing version 1.0 of init files
            if 'version' in IC_root.attrib:
                if float(IC_root.attrib['version']) == 2.0:
                    continue

            # Extract the IC values from XML
            for var in vars:
                var_tag = IC_root.find('./'+var['tag'])
                var['specified'] = var_tag is not None
                if not var['specified']:
                    var['value'] = 0.0
                    continue

                var['value'] = float(var_tag.text)
                if 'unit' in var_tag.attrib:
                    conv = var['unit'][var_tag.attrib['unit']]
#.........这里部分代码省略.........

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class TestSimTimeReset(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox()

    def tearDown(self):
        self.sandbox.erase()

    def test_no_script(self):
        fdm = CreateFDM(self.sandbox)
        aircraft_path = self.sandbox.path_to_jsbsim_file('aircraft')
        fdm.set_aircraft_path(aircraft_path)
        fdm.load_model('c172x')

        aircraft_path = os.path.join(self.sandbox.elude(aircraft_path), 'c172x')
        fdm.load_ic(os.path.join(aircraft_path, 'reset01.xml'), False)
        fdm.run_ic()

        self.assertEqual(fdm.get_property_value('simulation/sim-time-sec'), 0.0)
        ExecuteUntil(fdm, 5.0)

        t = fdm.get_property_value('simulation/sim-time-sec')
        fdm.set_property_value('simulation/do_simple_trim', 1)
        self.assertEqual(fdm.get_property_value('simulation/sim-time-sec'), t)

        fdm.reset_to_initial_conditions(1)
        self.assertEqual(fdm.get_property_value('simulation/sim-time-sec'), 0.0)

        del fdm

    def test_script_start_time_0(self):
        script_name = 'ball_orbit.xml'
        script_path = self.sandbox.path_to_jsbsim_file('scripts', script_name)
        fdm = CreateFDM(self.sandbox)
        fdm.load_script(script_path)
        fdm.run_ic()

        self.assertEqual(fdm.get_property_value('simulation/sim-time-sec'), 0.0)
        ExecuteUntil(fdm, 5.0)

        fdm.reset_to_initial_conditions(1)
        self.assertEqual(fdm.get_property_value('simulation/sim-time-sec'), 0.0)

        del fdm

    def test_script_start_time(self):
        script_name = 'ball_orbit.xml'
        script_path = self.sandbox.path_to_jsbsim_file('scripts', script_name)
        tree = et.parse(self.sandbox.elude(script_path))
        run_tag = tree.getroot().find('./run')
        run_tag.attrib['start'] = '1.2'
        tree.write(self.sandbox(script_name))
        fdm = CreateFDM(self.sandbox)

        fdm.load_script(script_name)
        fdm.run_ic()

        self.assertEqual(fdm.get_property_value('simulation/sim-time-sec'), 1.2)
        ExecuteUntil(fdm, 5.0)

        fdm.reset_to_initial_conditions(1)
        self.assertEqual(fdm.get_property_value('simulation/sim-time-sec'), 1.2)

        del fdm

    def test_script_no_start_time(self):
        script_name = 'ball_orbit.xml'
        script_path = self.sandbox.path_to_jsbsim_file('scripts', script_name)
        tree = et.parse(self.sandbox.elude(script_path))
        run_tag = tree.getroot().find('./run')
        # Remove the parameter 'start' from the tag <run>
        del run_tag.attrib['start']
        tree.write(self.sandbox(script_name))
        fdm = CreateFDM(self.sandbox)

        fdm.load_script(script_name)
        fdm.run_ic()

        self.assertEqual(fdm.get_property_value('simulation/sim-time-sec'), 0.0)
        ExecuteUntil(fdm, 5.0)

        fdm.reset_to_initial_conditions(1)
        self.assertEqual(fdm.get_property_value('simulation/sim-time-sec'), 0.0)

        del fdm

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, see <http://www.gnu.org/licenses/>
#

import sys
from JSBSim_utils import CreateFDM, Table, SandBox

sandbox = SandBox("check_cases", "orbit")

fdm = CreateFDM(sandbox)
fdm.load_script(sandbox.path_to_jsbsim_file("scripts", "ball_orbit.xml"))
fdm.run_ic()

while fdm.run():
    pass

ref, current = Table(), Table()
ref.ReadCSV(sandbox.elude(sandbox.path_to_jsbsim_file("logged_data", "BallOut.csv")))
current.ReadCSV(sandbox("BallOut.csv"))

diff = ref.compare(current)
if not diff.empty():
    print diff
    sys.exit(-1)  # Needed for 'make test' to report the test passed.

sandbox.erase()

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]

#.........这里部分代码省略.........
                        msg="Not connected to the JSBSim server.\nGot message '%s' instead" % (out,))

        # Check that "help" returns the minimum set of commands that will be
        # tested
        self.assertEqual(sorted(map(lambda x: string.strip(string.split(x, '{')[0]),
                                    string.split(_tn.sendCommand("help"), '\n')[2:-2])),
                         ['get', 'help', 'hold', 'info', 'iterate', 'quit', 'resume', 'set'])

    def test_no_input(self):
        fdm = CreateFDM(self.sandbox)
        fdm.load_script(self.script_path)
        fdm.run_ic()
        fdm.hold()

        with self.assertRaises(socket.error):
            TelnetInterface(fdm, 5., 1137)

    def test_input_socket(self):
        # The aircraft c172x does not contain an <input> tag so we need
        # to add one.
        tree, aircraft_name, b = CopyAircraftDef(self.script_path, self.sandbox)
        self.root = tree.getroot()
        input_tag = et.SubElement(self.root, 'input')
        input_tag.attrib['port'] = '1137'
        tree.write(self.sandbox('aircraft', aircraft_name,
                                aircraft_name+'.xml'))

        fdm = CreateFDM(self.sandbox)
        fdm.set_aircraft_path('aircraft')
        fdm.load_script(self.script_path)
        fdm.run_ic()
        fdm.hold()

        tn = TelnetInterface(fdm, 5., 1137)
        self.sanityCheck(tn)

        # Check the aircraft name and its version
        msg = string.split(tn.sendCommand("info"), '\n')
        self.assertEqual(string.strip(string.split(msg[2], ':')[1]),
                         string.strip(self.root.attrib['name']))
        self.assertEqual(string.strip(string.split(msg[1], ':')[1]),
                         string.strip(self.root.attrib['version']))

        # Check that the simulation time is 0.0
        self.assertEqual(float(string.strip(string.split(msg[3], ':')[1])), 0.0)
        self.assertEqual(tn.getSimTime(), 0.0)
        self.assertEqual(tn.getPropertyValue("simulation/sim-time-sec"), 0.0)

        # Check that 'iterate' iterates the correct number of times
        tn.sendCommand("iterate 19")
        self.assertEqual(tn.getSimTime(), 19. * tn.getDeltaT())
        self.assertAlmostEqual(tn.getPropertyValue("simulation/sim-time-sec"),
                               tn.getSimTime(), delta=1E-5)

        # Wait a little bit and make sure that the simulation time has not
        # changed meanwhile thus confirming that the simulation is on hold.
        tn.wait(0.1)
        self.assertEqual(tn.getSimTime(), 19. * tn.getDeltaT())
        self.assertAlmostEqual(tn.getPropertyValue("simulation/sim-time-sec"),
                               tn.getSimTime(), delta=1E-5)

        # Modify the tank[0] contents via the "send" command
        half_contents = 0.5 * tn.getPropertyValue("propulsion/tank/contents-lbs")
        tn.sendCommand("set propulsion/tank/contents-lbs " + str(half_contents))
        self.assertEqual(tn.getPropertyValue("propulsion/tank/contents-lbs"),
                         half_contents)

        # Check the resume/hold commands
        tn.setRealTime(True)
        t = tn.getSimTime()
        tn.sendCommand("resume")
        tn.wait(0.5)
        self.assertNotEqual(tn.getSimTime(), t)
        tn.wait(0.5)
        tn.sendCommand("hold")
        tn.setRealTime(False)
        t = tn.getSimTime()
        self.assertAlmostEqual(tn.getPropertyValue("simulation/sim-time-sec"),
                               t, delta=1E-5)

        # Wait a little bit and make sure that the simulation time has not
        # changed meanwhile thus confirming that the simulation is on hold.
        tn.wait(0.1)
        self.assertEqual(tn.getSimTime(), t)
        self.assertAlmostEqual(tn.getPropertyValue("simulation/sim-time-sec"),
                               t, delta=1E-5)

    def test_script_input(self):
        tree = et.parse(self.sandbox.elude(self.script_path))
        input_tag = et.SubElement(tree.getroot(), 'input')
        input_tag.attrib['port'] = '1138'
        tree.write(self.sandbox('c1722_1.xml'))

        fdm = CreateFDM(self.sandbox)
        fdm.load_script('c1722_1.xml')
        fdm.run_ic()
        fdm.hold()

        tn = TelnetInterface(fdm, 5., 1138)
        self.sanityCheck(tn)

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class TestModelLoading(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox()

    def tearDown(self):
        self.sandbox.erase()

    def BuildReference(self, script_name):
        # Run the script
        self.script = self.sandbox.path_to_jsbsim_file(os.path.join('scripts',
                                                               script_name))
        self.sandbox.delete_csv_files()
        fdm = CreateFDM(self.sandbox)
        fdm.set_output_directive(self.sandbox.path_to_jsbsim_file('tests',
                                                                  'output.xml'))
        fdm.load_script(self.script)
        fdm.set_property_value('simulation/randomseed', 0.0)

        fdm.run_ic()
        ExecuteUntil(fdm, 50.0)

        self.ref = Table()
        self.ref.ReadCSV(self.sandbox("output.csv"))

        # Since the script will work with modified versions of the aircraft XML
        # definition file, we need to make a copy of the directory that contains
        # all the input data of that aircraft

        tree, self.aircraft_name, self.path_to_jsbsim_aircrafts = CopyAircraftDef(self.script, self.sandbox)
        self.aircraft_path = self.sandbox('aircraft', self.aircraft_name)

    def ProcessAndCompare(self, section):
        # Here we determine if the original aircraft definition <section> is
        # inline or read from an external file.
        tree = et.parse(os.path.join(self.path_to_jsbsim_aircrafts,
                                     self.aircraft_name + '.xml'))
        root = tree.getroot()

        # Iterate over all the tags named <section>
        for section_element in root.findall(section):
            if 'file' in section_element.keys():
                self.InsertAndCompare(section_element, tree)
            else:
                self.DetachAndCompare(section_element, tree)

    def DetachAndCompare(self, section_element, tree):
        # Extract <section> from the original aircraft definition file and copy
        # it in a separate XML file 'section.xml'
        section_tree = et.ElementTree(element=section_element)
        if 'name' in section_element.keys():
            section = section_element.attrib['name']
        else:
            section = section_element.tag

        section_tree.write(os.path.join(self.aircraft_path, section+'.xml'),
                           xml_declaration=True)

        # Now, we need to clean up the aircraft definition file from all
        # references to <section>. We just need a single <section> tag that
        # points to the file 'section.xml'
        for element in list(section_element):
            section_element.remove(element)

        section_element.attrib = {'file': section+'.xml'}
        tree.write(os.path.join(self.aircraft_path, self.aircraft_name+'.xml'),
                   xml_declaration=True)

        self.Compare(section)

    def InsertAndCompare(self, section_element, tree):
        file_name = append_xml(section_element.attrib['file'])
        section_file = os.path.join(self.path_to_jsbsim_aircrafts, file_name)

        # If <section> is actually <system>, we need to iterate over all the
        # directories in which the file is allowed to be stored until the file
        # is located.
        if not os.path.exists(section_file) and section_element.tag == 'system':
            section_file = os.path.join(self.path_to_jsbsim_aircrafts, "systems", file_name)
            if not os.path.exists(section_file):
                section_file = self.sandbox.elude(self.sandbox.path_to_jsbsim_file("systems", file_name))

        # The original <section> tag is dropped and replaced by the content of
        # the file.
        section_root = et.parse(section_file).getroot()

        del section_element.attrib['file']
        section_element.attrib.update(section_root.attrib)
        section_element.extend(section_root)

        tree.write(os.path.join(self.aircraft_path, self.aircraft_name+'.xml'))

        self.Compare(section_element.tag+" file:"+section_file)

    def Compare(self, section):
        # Rerun the script with the modified aircraft definition
        self.sandbox.delete_csv_files()
        fdm = CreateFDM(self.sandbox)
        # We need to tell JSBSim that the aircraft definition is located in the
        # directory build/.../aircraft
        fdm.set_aircraft_path('aircraft')
#.........这里部分代码省略.........

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class TestPitotAngle(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox()

    def tearDown(self):
        self.sandbox.erase()

    def test_CAS_ic(self):
        script_name = 'Short_S23_3.xml'
        script_path = self.sandbox.path_to_jsbsim_file('scripts',
                                                       script_name)

        # Add a Pitot angle to the Short S23
        tree, aircraft_name, path_to_jsbsim_aircrafts = CopyAircraftDef(script_path, self.sandbox)
        metrics_tag = tree.getroot().find('./metrics')
        pitot_tag = et.SubElement(metrics_tag, 'pitot_angle')
        pitot_tag.attrib['unit'] = 'DEG'
        pitot_tag.text = '5.0'
        tree.write(self.sandbox('aircraft', aircraft_name,
                                aircraft_name+'.xml'))

        # Read the CAS specified in the IC file
        tree = et.parse(self.sandbox.elude(script_path))
        use_element = tree.getroot().find('use')
        IC_file = use_element.attrib['initialize']
        tree = et.parse(os.path.join(path_to_jsbsim_aircrafts,
                                     append_xml(IC_file)))
        vc_tag = tree.getroot().find('./vc')
        VCAS = float(vc_tag.text)
        if 'unit' in vc_tag.attrib and vc_tag.attrib['unit'] == 'FT/SEC':
            VCAS /= 1.68781

        # Run the IC and check that the model is initialized correctly
        fdm = CreateFDM(self.sandbox)
        fdm.set_aircraft_path('aircraft')
        fdm.load_script(script_path)
        fdm.run_ic()

        self.assertAlmostEqual(fdm.get_property_value('ic/vc-kts'),
                               VCAS, delta=1E-7)
        self.assertAlmostEqual(fdm.get_property_value('velocities/vc-kts'),
                               VCAS, delta=1E-7)

    def test_pitot_angle(self):
        script_name = 'ball_chute.xml'
        script_path = self.sandbox.path_to_jsbsim_file('scripts', script_name)

        # Add a Pitot angle to the Cessna 172
        tree, aircraft_name, path_to_jsbsim_aircrafts = CopyAircraftDef(script_path, self.sandbox)
        root = tree.getroot()
        metrics_tag = root.find('./metrics')
        pitot_tag = et.SubElement(metrics_tag, 'pitot_angle')
        pitot_tag.attrib['unit'] = 'DEG'
        pitot_tag.text = '5.0'
        contact_tag = root.find('./ground_reactions/contact')
        contact_tag.attrib['type'] = 'STRUCTURE'
        tree.write(self.sandbox('aircraft', aircraft_name,
                                aircraft_name+'.xml'))

        fdm = CreateFDM(self.sandbox)
        fdm.set_aircraft_path('aircraft')
        fdm.load_model('ball')
        pitot_angle = float(pitot_tag.text) * math.pi / 180.
        weight = fdm.get_property_value('inertia/weight-lbs')
        spring_tag = contact_tag.find('./spring_coeff')
        spring_coeff = float(spring_tag.text)
        print "Weight=%d Spring=%d" % (weight, spring_coeff)
        fdm.set_property_value('ic/h-sl-ft', weight / spring_coeff)
        fdm.set_property_value('forces/hold-down', 1.0)
        fdm.run_ic()

        ExecuteUntil(fdm, 10.)

        for i in xrange(36):
            for j in xrange(-9, 10):
                angle = math.pi * i / 18.0
                angle2 = math.pi * j / 18.0
                ca2 = math.cos(angle2)
                fdm.set_property_value('atmosphere/wind-north-fps',
                                       10. * math.cos(angle) * ca2)
                fdm.set_property_value('atmosphere/wind-east-fps',
                                       10. * math.sin(angle) * ca2)
                fdm.set_property_value('atmosphere/wind-down-fps',
                                       10. * math.sin(angle2))
                fdm.run()

                vg = fdm.get_property_value('velocities/vg-fps')
                self.assertAlmostEqual(vg, 0.0, delta=1E-7)

                vt = fdm.get_property_value('velocities/vt-fps')
                self.assertAlmostEqual(vt, 10., delta=1E-7)

                mach = vt / fdm.get_property_value('atmosphere/a-fps')
                P = fdm.get_property_value('atmosphere/P-psf')
                pt = P * math.pow(1+0.2*mach*mach, 3.5)
                psl = fdm.get_property_value('atmosphere/P-sl-psf')
                rhosl = fdm.get_property_value('atmosphere/rho-sl-slugs_ft3')
                A = math.pow((pt-P)/psl+1.0, 1.0/3.5)
                alpha = fdm.get_property_value('aero/alpha-rad')
                beta = fdm.get_property_value('aero/beta-rad')
#.........这里部分代码省略.........

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class TestICOverride(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox()

    def tearDown(self):
        self.sandbox.erase()

    def test_IC_override(self):
        # Run the script c1724.xml
        script_path = self.sandbox.path_to_jsbsim_file('scripts', 'c1724.xml')

        fdm = CreateFDM(self.sandbox)
        fdm.load_script(script_path)

        vt0 = fdm.get_property_value('ic/vt-kts')

        fdm.run_ic()
        self.assertEqual(fdm.get_property_value('simulation/sim-time-sec'), 0.0)
        self.assertAlmostEqual(fdm.get_property_value('velocities/vt-fps'),
                               vt0 / fpstokts, delta=1E-7)

        ExecuteUntil(fdm, 1.0)

        # Check that the total velocity exported in the output file matches the
        # IC defined in the initialization file
        ref = Table()
        ref.ReadCSV(self.sandbox('JSBout172B.csv'))
        self.assertEqual(ref.get_column('Time')[1], 0.0)
        self.assertAlmostEqual(ref.get_column('V_{Total} (ft/s)')[1],
                               vt0 / fpstokts, delta=1E-7)

        # Now, we will re-run the same test but the IC will be overridden in the
        # script. The initial total velocity is increased by 1 ft/s
        vt0 += 1.0

        # The script c1724.xml is loaded and the following line is added in it:
        #    <property value="..."> ic/vt-kts </property>
        # The modified script is then saved with the named 'c1724_0.xml'
        tree = et.parse(self.sandbox.elude(script_path))
        run_tag = tree.getroot().find("./run")
        property = et.SubElement(run_tag, 'property')
        property.text = 'ic/vt-kts'
        property.attrib['value'] = str(vt0)
        tree.write(self.sandbox('c1724_0.xml'))

        # Re-run the same check than above. This time we are making sure than
        # the total initial velocity is increased by 1 ft/s
        self.sandbox.delete_csv_files()

        # Because JSBSim internals use static pointers, we cannot rely on Python
        # garbage collector to decide when the FDM is destroyed otherwise we can
        # get dangling pointers.
        del fdm

        fdm = CreateFDM(self.sandbox)
        fdm.load_script('c1724_0.xml')

        self.assertAlmostEqual(fdm.get_property_value('ic/vt-kts'), vt0,
                               delta=1E-6)

        fdm.run_ic()
        self.assertEqual(fdm.get_property_value('simulation/sim-time-sec'), 0.0)
        self.assertAlmostEqual(fdm.get_property_value('velocities/vt-fps'),
                               vt0 / fpstokts, delta=1E-6)

        ExecuteUntil(fdm, 1.0)

        mod = Table()
        mod.ReadCSV(self.sandbox('JSBout172B.csv'))
        self.assertAlmostEqual(mod.get_column('V_{Total} (ft/s)')[1],
                               vt0 / fpstokts, delta=1E-6)

# 需要导入模块: from JSBSim_utils import SandBox [as 别名]
# 或者: from JSBSim_utils.SandBox import elude [as 别名]
class TestAccelerometer(unittest.TestCase):
    def setUp(self):
        self.sandbox = SandBox()

    def tearDown(self):
        self.sandbox.erase()

    def AddAccelerometersToAircraft(self, script_path):
        tree, aircraft_name, b = CopyAircraftDef(script_path, self.sandbox)
        system_tag = et.SubElement(tree.getroot(), 'system')
        system_tag.attrib['file'] = 'accelerometers'
        tree.write(self.sandbox('aircraft', aircraft_name, aircraft_name+'.xml'))

    def testOrbit(self):
        script_name = 'ball_orbit.xml'
        script_path = self.sandbox.path_to_jsbsim_file('scripts', script_name)
        self.AddAccelerometersToAircraft(script_path)

        # The time step is too small in ball_orbit so let's increase it to 0.1s
        # for a quicker run
        tree = et.parse(self.sandbox.elude(script_path))
        run_tag = tree.getroot().find('./run')
        run_tag.attrib['dt'] = '0.1'
        tree.write(self.sandbox(script_name))

        fdm = CreateFDM(self.sandbox)
        fdm.set_aircraft_path('aircraft')
        fdm.load_script(script_name)
        # Switch the accel on
        fdm.set_property_value('fcs/accelerometer/on', 1.0)
        fdm.run_ic()

        while fdm.run():
            self.assertAlmostEqual(fdm.get_property_value('fcs/accelerometer/X'),
                                   0.0, delta=1E-8)
            self.assertAlmostEqual(fdm.get_property_value('fcs/accelerometer/Y'),
                                   0.0, delta=1E-8)
            self.assertAlmostEqual(fdm.get_property_value('fcs/accelerometer/Z'),
                                   0.0, delta=1E-8)
            self.assertAlmostEqual(fdm.get_property_value('accelerations/a-pilot-x-ft_sec2'),
                                   0.0, delta=1E-8)
            self.assertAlmostEqual(fdm.get_property_value('accelerations/a-pilot-y-ft_sec2'),
                                   0.0, delta=1E-8)
            self.assertAlmostEqual(fdm.get_property_value('accelerations/a-pilot-z-ft_sec2'),
                                   0.0, delta=1E-8)

        del fdm

    def testOnGround(self):
        script_name = 'c1721.xml'
        script_path = self.sandbox.path_to_jsbsim_file('scripts', script_name)
        self.AddAccelerometersToAircraft(script_path)

        fdm = CreateFDM(self.sandbox)
        fdm.set_aircraft_path('aircraft')
        fdm.load_script(script_path)

        # Switch the accel on
        fdm.set_property_value('fcs/accelerometer/on', 1.0)
        # Use the standard gravity (i.e. GM/r^2)
        fdm.set_property_value('simulation/gravity-model', 0)
        # Simplifies the transformation to compare the accelerometer with the
        # gravity
        fdm.set_property_value('ic/psi-true-rad', 0.0)
        fdm.run_ic()

        for i in xrange(500):
            fdm.run()

        ax = fdm.get_property_value('accelerations/udot-ft_sec2')
        ay = fdm.get_property_value('accelerations/vdot-ft_sec2')
        az = fdm.get_property_value('accelerations/wdot-ft_sec2')
        g = fdm.get_property_value('accelerations/gravity-ft_sec2')
        theta = fdm.get_property_value('attitude/theta-rad')

        # There is a lag of one time step between the computations of the
        # accelerations and the update of the accelerometer
        fdm.run()
        fax = fdm.get_property_value('fcs/accelerometer/X')
        fay = fdm.get_property_value('fcs/accelerometer/Y')
        faz = fdm.get_property_value('fcs/accelerometer/Z')

        fax -= ax
        faz -= az

        self.assertAlmostEqual(fay, 0.0, delta=1E-6)
        self.assertAlmostEqual(fax / (g * math.sin(theta)), 1.0, delta=1E-5)
        self.assertAlmostEqual(faz / (g * math.cos(theta)), -1.0, delta=1E-7)

        del fdm

    def testSteadyFlight(self):
        script_name = 'c1722.xml'
        script_path = self.sandbox.path_to_jsbsim_file('scripts', script_name)
        self.AddAccelerometersToAircraft(script_path)

        fdm = CreateFDM(self.sandbox)
        fdm.set_aircraft_path('aircraft')
        fdm.load_script(script_path)
        # Switch the accel on
#.........这里部分代码省略.........