82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
/********************************************************
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* ██████╗ ██████╗████████╗██╗
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* ██╔════╝ ██╔════╝╚══██╔══╝██║
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* ██║ ███╗██║ ██║ ██║
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* ██║ ██║██║ ██║ ██║
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* ╚██████╔╝╚██████╗ ██║ ███████╗
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* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
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* Geophysical Computational Tools & Library (GCTL)
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*
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* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
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*
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* GCTL is distributed under a dual licensing scheme. You can redistribute
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* it and/or modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, either version 2
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* of the License, or (at your option) any later version. You should have
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* received a copy of the GNU Lesser General Public License along with this
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* program. If not, see <http://www.gnu.org/licenses/>.
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*
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* If the terms and conditions of the LGPL v.2. would prevent you from using
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* the GCTL, please consider the option to obtain a commercial license for a
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* fee. These licenses are offered by the GCTL's original author. As a rule,
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* licenses are provided "as-is", unlimited in time for a one time fee. Please
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* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
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* to include some description of your company and the realm of its activities.
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* Also add information on how to contact you by electronic and paper mail.
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******************************************************/
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#include "gctl/core.h"
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#include "gctl/geometry.h"
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namespace {
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// show elements
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void show_tensor(const gctl::tensor &a, std::string t_name)
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{
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std::cout << t_name << " = " << std::endl;
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for (int i = 0; i < 3; i++)
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{
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for (int j = 0; j < 3; j++)
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{
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std::cout << a.at(i,j) << " ";
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}
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std::cout << std::endl;
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}
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return;
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}
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}
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int main(int argc, char const *argv[])
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{
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// declare two tensors
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gctl::tensor a, b;
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for (int i = 0; i < 3; i++)
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{
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for (int j = 0; j < 3; j++)
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{
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a[i][j] = j+1;
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b[i][j] = i+1;
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}
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}
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show_tensor(a, "a");
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show_tensor(b, "b");
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// test calculations
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gctl::tensor c = a + b;
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show_tensor(c, "a+b");
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gctl::tensor d = a - b;
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show_tensor(d, "a-b");
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gctl::tensor e = a * b;
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show_tensor(e, "a*b");
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gctl::point3dc f(1.0, 2.0, 3.0);
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gctl::point3dc g = a * f;
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gctl::point3dc h = f * a;
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std::cout << "a*f = " << g.x << " " << g.y << " " << g.z << std::endl;
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std::cout << "f*a = " << h.x << " " << h.y << " " << h.z << std::endl;
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return 0;
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} |