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							5.1 KiB
						
					
					
				
			
		
		
	
	
							139 lines
						
					
					
						
							5.1 KiB
						
					
					
				| #
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| # Copyright 2019 Gianluca Frison, Dimitris Kouzoupis, Robin Verschueren,
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| # Andrea Zanelli, Niels van Duijkeren, Jonathan Frey, Tommaso Sartor,
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| # Branimir Novoselnik, Rien Quirynen, Rezart Qelibari, Dang Doan,
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| # Jonas Koenemann, Yutao Chen, Tobias Schöls, Jonas Schlagenhauf, Moritz Diehl
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| #
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| # This file is part of acados.
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| #
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| # The 2-Clause BSD License
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| #
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| # Redistribution and use in source and binary forms, with or without
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| # modification, are permitted provided that the following conditions are met:
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| #
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| # 1. Redistributions of source code must retain the above copyright notice,
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| # this list of conditions and the following disclaimer.
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| #
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| # 2. Redistributions in binary form must reproduce the above copyright notice,
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| # this list of conditions and the following disclaimer in the documentation
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| # and/or other materials provided with the distribution.
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| #
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| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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| # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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| # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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| # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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| # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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| # POSSIBILITY OF SUCH DAMAGE.;
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| #
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| 
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| import os
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| from casadi import *
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| from .utils import ALLOWED_CASADI_VERSIONS, is_empty, casadi_length, casadi_version_warning
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| 
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| def generate_c_code_implicit_ode( model, opts ):
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| 
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|     casadi_version = CasadiMeta.version()
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|     casadi_opts = dict(mex=False, casadi_int='int', casadi_real='double')
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|     if casadi_version not in (ALLOWED_CASADI_VERSIONS):
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|         casadi_version_warning(casadi_version)
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| 
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|     generate_hess = opts["generate_hess"]
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|     code_export_dir = opts["code_export_directory"]
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| 
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|     ## load model
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|     x = model.x
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|     xdot = model.xdot
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|     u = model.u
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|     z = model.z
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|     p = model.p
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|     f_impl = model.f_impl_expr
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|     model_name = model.name
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| 
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|     ## get model dimensions
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|     nx = casadi_length(x)
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|     nu = casadi_length(u)
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|     nz = casadi_length(z)
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| 
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|     ## generate jacobians
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|     jac_x       = jacobian(f_impl, x)
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|     jac_xdot    = jacobian(f_impl, xdot)
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|     jac_u       = jacobian(f_impl, u)
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|     jac_z       = jacobian(f_impl, z)
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| 
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|     ## generate hessian
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|     x_xdot_z_u = vertcat(x, xdot, z, u)
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| 
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|     if isinstance(x, casadi.MX):
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|         symbol = MX.sym
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|     else:
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|         symbol = SX.sym
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| 
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|     multiplier  = symbol('multiplier', nx + nz)
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| 
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|     ADJ = jtimes(f_impl, x_xdot_z_u, multiplier, True)
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|     HESS = jacobian(ADJ, x_xdot_z_u)
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| 
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|     ## Set up functions
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|     p = model.p
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|     fun_name = model_name + '_impl_dae_fun'
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|     impl_dae_fun = Function(fun_name, [x, xdot, u, z, p], [f_impl])
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| 
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|     fun_name = model_name + '_impl_dae_fun_jac_x_xdot_z'
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|     impl_dae_fun_jac_x_xdot_z = Function(fun_name, [x, xdot, u, z, p], [f_impl, jac_x, jac_xdot, jac_z])
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| 
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|     # fun_name = model_name + '_impl_dae_fun_jac_x_xdot_z'
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|     # impl_dae_fun_jac_x_xdot = Function(fun_name, [x, xdot, u, z, p], [f_impl, jac_x, jac_xdot, jac_z])
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| 
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|     # fun_name = model_name + '_impl_dae_jac_x_xdot_u'
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|     # impl_dae_jac_x_xdot_u = Function(fun_name, [x, xdot, u, z, p], [jac_x, jac_xdot, jac_u, jac_z])
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| 
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|     fun_name = model_name + '_impl_dae_fun_jac_x_xdot_u_z'
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|     impl_dae_fun_jac_x_xdot_u_z = Function(fun_name, [x, xdot, u, z, p], [f_impl, jac_x, jac_xdot, jac_u, jac_z])
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| 
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|     fun_name = model_name + '_impl_dae_fun_jac_x_xdot_u'
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|     impl_dae_fun_jac_x_xdot_u = Function(fun_name, [x, xdot, u, z, p], [f_impl, jac_x, jac_xdot, jac_u])
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| 
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|     fun_name = model_name + '_impl_dae_jac_x_xdot_u_z'
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|     impl_dae_jac_x_xdot_u_z = Function(fun_name, [x, xdot, u, z, p], [jac_x, jac_xdot, jac_u, jac_z])
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| 
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| 
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|     fun_name = model_name + '_impl_dae_hess'
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|     impl_dae_hess = Function(fun_name, [x, xdot, u, z, multiplier, p], [HESS])
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| 
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|     # generate C code
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|     if not os.path.exists(code_export_dir):
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|         os.makedirs(code_export_dir)
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| 
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|     cwd = os.getcwd()
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|     os.chdir(code_export_dir)
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|     model_dir = model_name + '_model'
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|     if not os.path.exists(model_dir):
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|         os.mkdir(model_dir)
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|     model_dir_location = os.path.join('.', model_dir)
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|     os.chdir(model_dir_location)
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| 
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|     fun_name = model_name + '_impl_dae_fun'
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|     impl_dae_fun.generate(fun_name, casadi_opts)
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| 
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|     fun_name = model_name + '_impl_dae_fun_jac_x_xdot_z'
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|     impl_dae_fun_jac_x_xdot_z.generate(fun_name, casadi_opts)
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| 
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|     fun_name = model_name + '_impl_dae_jac_x_xdot_u_z'
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|     impl_dae_jac_x_xdot_u_z.generate(fun_name, casadi_opts)
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| 
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|     fun_name = model_name + '_impl_dae_fun_jac_x_xdot_u_z'
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|     impl_dae_fun_jac_x_xdot_u_z.generate(fun_name, casadi_opts)
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| 
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|     fun_name = model_name + '_impl_dae_fun_jac_x_xdot_u'
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|     impl_dae_fun_jac_x_xdot_u.generate(fun_name, casadi_opts)
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| 
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|     if generate_hess:
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|         fun_name = model_name + '_impl_dae_hess'
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|         impl_dae_hess.generate(fun_name, casadi_opts)
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| 
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|     os.chdir(cwd)
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| 
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