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Commit 4a5bfb30 authored by PACANOWSKI Romain's avatar PACANOWSKI Romain
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LICENSE.txt 0 → 100644
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This file is part of the ALTA library.
ALTA is free software: you can redistribute it and/or modify it under the terms
of the GNU Lesser General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
ALTA is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
We however require that you contact us for any use or modification of ALTA.
You should have received a copy of the GNU Lesser General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>.
Contacts:
- Laurent Belcour <laurent.belcour@inria.fr>
- Romain Pacanowski <romain.pacanowski@inria.fr>
- Xavier Granier <xavier.granier@inria.fr>
documents/alta_logo.svg 0 → 100644
View file @ 4a5bfb30
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sources/plugins/data_interpolant_matlab/data.cpp
View file @ 4a5bfb30
......@@ -25,11 +25,15 @@ data_interpolant::data_interpolant()
{
std::cerr << "<ERROR>> can't start MATLAB engine" << std::endl ;
}
output[BUFFER_SIZE] = '\0';
engOutputBuffer(ep, output, BUFFER_SIZE) ;
}
data_interpolant::~data_interpolant()
{
delete _data;
delete[] output;
mxDestroyArray(x);
mxDestroyArray(y);
......@@ -74,17 +78,8 @@ void data_interpolant::load(const std::string& filename)
Y = mxCreateDoubleMatrix(_data->size(), dimY(), mxREAL);
memcpy((void *)mxGetPr(Y), (void *) eY.data(), _data->size()*dimY()*sizeof(double));
engPutVariable(ep, "Y", Y);
output[BUFFER_SIZE] = '\0';
engOutputBuffer(ep, output, BUFFER_SIZE) ;
engEvalString(ep, "display(X)");
std::cout << output << std::endl ;
engEvalString(ep, "display(Y)");
std::cout << output << std::endl ;
x = mxCreateDoubleMatrix(1, dimX(), mxREAL);
engPutVariable(ep, "x", x);
}
void data_interpolant::load(const std::string& filename, const arguments&)
{
......@@ -124,21 +119,33 @@ vec data_interpolant::value(vec ax) const
// Copy the input vector to matlab code
memcpy((void *)mxGetPr(x), (void *)&ax[0], dimX()*sizeof(double));
engPutVariable(ep, "x", x);
// Evaluate the matlab routine
std::stringstream cmd;
cmd << "y = griddatan(X(:, 1:" << dimX() <<"), Y(:, 1), x)";
cmd << "y = griddatan(X(:, 1:" << dimX() <<"), Y(:, 1), x, 'linear');";
engEvalString(ep, cmd.str().c_str());
std::cout << output << std::endl ;
engEvalString(ep, "display(y)");
std::cout << output << std::endl ;
// Get results and copy it
y = engGetVariable(ep, "y") ;
double* y_val = (double*)mxGetData(y);
memcpy(&res[0], y_val, dimY()*sizeof(double));
// Fail safe: if the query point is outside of the convex hull of the
// data, rerun the algorithm using a nearest option.
if(isnan(res[0]))
{
cmd.str(std::string());
cmd << "y = griddatan(X(:, 1:" << dimX() <<"), Y(:, 1), x, 'nearest');";
engEvalString(ep, cmd.str().c_str());
// Get results and copy it
y = engGetVariable(ep, "y") ;
double* y_val = (double*)mxGetData(y);
memcpy(&res[0], y_val, dimY()*sizeof(double));
}
return res;
}
......
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