[10] | 1 | // %flair:license{
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[15] | 2 | // This file is part of the Flair framework distributed under the
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| 3 | // CECILL-C License, Version 1.0.
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[10] | 4 | // %flair:license}
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[7] | 5 | // created: 2011/05/01
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| 6 | // filename: EulerDerivative.cpp
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| 7 | //
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| 8 | // author: Guillaume Sanahuja
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| 9 | // Copyright Heudiasyc UMR UTC/CNRS 7253
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| 10 | //
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| 11 | // version: $Id: $
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| 12 | //
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| 13 | // purpose: objet permettant le calcul d'une derivee d'Euler
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| 14 | //
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| 15 | //
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| 16 | /*********************************************************************/
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| 17 |
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| 18 | #include "EulerDerivative.h"
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| 19 | #include "EulerDerivative_impl.h"
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[214] | 20 | #include <Matrix.h>
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[7] | 21 | #include <Layout.h>
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| 22 | #include <GroupBox.h>
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| 23 | #include <DoubleSpinBox.h>
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| 24 |
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| 25 | using std::string;
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| 26 | using namespace flair::core;
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| 27 | using namespace flair::gui;
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| 28 | using namespace flair::filter;
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| 29 |
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[15] | 30 | EulerDerivative_impl::EulerDerivative_impl(EulerDerivative *self,
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| 31 | const LayoutPosition *position,
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| 32 | string name,
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[214] | 33 | const Matrix *init_value) {
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[15] | 34 | first_update = true;
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[214] | 35 | this->self = self;
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[147] | 36 |
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| 37 | if (init_value != NULL) {
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| 38 | // init output matrix of same size as init
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| 39 | cvmatrix_descriptor *desc =new cvmatrix_descriptor(init_value->Rows(), init_value->Cols());
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[7] | 40 |
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[147] | 41 | for (int i = 0; i < init_value->Rows(); i++) {
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| 42 | for (int j = 0; j < init_value->Cols(); j++) {
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| 43 | desc->SetElementName(i, j, init_value->Name(i, j));
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| 44 | }
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| 45 | }
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[214] | 46 | output = new Matrix(self, desc,init_value->GetDataType().GetElementDataType(), name);
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[148] | 47 | delete desc;
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[147] | 48 | for (int i = 0; i < init_value->Rows(); i++) {
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| 49 | for (int j = 0; j < init_value->Cols(); j++) {
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| 50 | output->SetValue(i, j, init_value->Value(i,j));
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| 51 | }
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| 52 | }
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[15] | 53 | } else {
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| 54 | // if NULL, assume dimension 1, and init=0
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| 55 | cvmatrix_descriptor *desc = new cvmatrix_descriptor(1, 1);
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| 56 | desc->SetElementName(0, 0, "output");
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[214] | 57 | output = new Matrix(self, desc, floatType, name);
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[148] | 58 | delete desc;
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[15] | 59 | }
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[147] | 60 |
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| 61 |
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| 62 | cvmatrix_descriptor *desc = new cvmatrix_descriptor(output->Rows(), output->Cols());
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[214] | 63 | prev_value = new Matrix(self, desc, output->GetDataType().GetElementDataType(), name);
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[7] | 64 |
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[147] | 65 |
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[15] | 66 | // init UI
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| 67 | GroupBox *reglages_groupbox = new GroupBox(position, name);
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| 68 | T = new DoubleSpinBox(reglages_groupbox->NewRow(), "period, 0 for auto:",
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| 69 | " s", 0, 1, 0.01);
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[7] | 70 | }
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| 71 |
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[15] | 72 | EulerDerivative_impl::~EulerDerivative_impl() {}
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[7] | 73 |
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[15] | 74 | void EulerDerivative_impl::UpdateFrom(const io_data *data) {
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| 75 | float delta_t;
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[214] | 76 | const Matrix* input = dynamic_cast<const Matrix*>(data);
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| 77 |
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| 78 | if (!input) {
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| 79 | self->Warn("casting %s to Matrix failed\n",data->ObjectName().c_str());
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| 80 | return;
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| 81 | }
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[7] | 82 |
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[15] | 83 | // on prend une fois pour toute les mutex et on fait des accès directs
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| 84 | output->GetMutex();
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| 85 | input->GetMutex();
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[7] | 86 |
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[15] | 87 | if (first_update == true) {
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| 88 | for (int i = 0; i < input->Rows(); i++) {
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| 89 | for (int j = 0; j < input->Cols(); j++) {
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| 90 | prev_value->SetValueNoMutex(i, j, input->ValueNoMutex(i, j));
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| 91 | }
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[7] | 92 | }
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[15] | 93 | first_update = false;
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| 94 | } else {
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| 95 | if (T->Value() == 0) {
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| 96 | delta_t = (float)(data->DataTime() - previous_time) / 1000000000.;
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| 97 | } else {
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| 98 | delta_t = T->Value();
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| 99 | }
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[7] | 100 |
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[15] | 101 | for (int i = 0; i < input->Rows(); i++) {
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| 102 | for (int j = 0; j < input->Cols(); j++) {
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| 103 | output->SetValueNoMutex(
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| 104 | i, j, (input->ValueNoMutex(i, j) - prev_value->ValueNoMutex(i, j)) /
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| 105 | delta_t);
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| 106 | prev_value->SetValueNoMutex(i, j, input->ValueNoMutex(i, j));
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| 107 | }
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[7] | 108 | }
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[15] | 109 | }
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[7] | 110 |
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[15] | 111 | input->ReleaseMutex();
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| 112 | output->ReleaseMutex();
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[7] | 113 |
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[15] | 114 | output->SetDataTime(data->DataTime());
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| 115 | previous_time = data->DataTime();
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[7] | 116 | }
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