gctl/lib/graphic/gmt.cpp
2025-02-09 13:12:55 +08:00

148 lines
4.8 KiB
C++

/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. 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 2
* of the License, or (at your option) any later version. 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/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "gmt.h"
gctl::gmt::gmt()
{
seesion_ok_ = false;
GMT_API_ = nullptr;
session_name_ = "";
buffer_.clear();
tmpfiles_.clear();
}
gctl::gmt::~gmt()
{
if (GMT_API_ != nullptr)
{
GMT_Destroy_Session(GMT_API_);
GMT_API_ = nullptr;
seesion_ok_ = false;
session_name_ = "";
}
if (!buffer_.empty()) buffer_.clear();
if (!tmpfiles_.empty()) tmpfiles_.clear();
}
void gctl::gmt::begin_session(const std::string& pic_name,
const std::string& pic_type, const std::string& name)
{
if (!buffer_.empty()) buffer_.clear();
session_name_ = pic_name;
GMT_API_ = GMT_Create_Session(name.c_str(), 2U, 0, nullptr);
if (GMT_API_ == nullptr) throw std::runtime_error("[gctl::gmt] Fail to begin GMT session.");
std::string cmd = pic_name + " " + pic_type;
if (GMT_Call_Module(GMT_API_, "begin", GMT_MODULE_CMD, (char*) cmd.c_str()) != GMT_NOERROR)
throw std::runtime_error("[gctl::gmt] Fail to execute GMT command.");
else
{
cmd = "begin " + cmd;
buffer_.push_back(cmd);
}
seesion_ok_ = true;
return;
}
void gctl::gmt::end_session(bool show, bool clear_tmp)
{
std::string cmd = "";
if (show) cmd = "show";
if (GMT_Call_Module(GMT_API_, "end", GMT_MODULE_CMD, (char*) cmd.c_str()) != GMT_NOERROR)
throw std::runtime_error("[gctl::gmt] Fail to end GMT session.");
else
{
cmd = "end " + cmd;
buffer_.push_back(cmd);
}
if (clear_tmp)
{
for (auto& file : tmpfiles_) remove(file.c_str());
}
if (GMT_API_ != nullptr)
{
GMT_Destroy_Session(GMT_API_);
GMT_API_ = nullptr;
}
seesion_ok_ = false;
session_name_ = "";
return;
}
void gctl::gmt::save_session(const std::string& filename)
{
time_t now = time(0);
char* dt = ctime(&now);
std::ofstream outfile;
open_outfile(outfile, filename, ".sh");
outfile << "#!/bin/bash" << std::endl;
outfile << "# This script is saved by gctl::gmt on " << dt;
outfile << "# For more information please connect yizhang-geo@zju.edu.cn" << std::endl;
for (auto& line : buffer_) outfile << "gmt " << line << std::endl;
outfile.close();
buffer_.clear();
return;
}
void gctl::gmt::call_module(const std::string& module, const std::string& cmd)
{
if (GMT_Call_Module(GMT_API_, module.c_str(), GMT_MODULE_CMD, (char*) cmd.c_str()) != GMT_NOERROR)
throw std::runtime_error("[gctl::gmt] Fail to execute GMT command.");
else
{
std::string cmds = module + " " + cmd;
buffer_.push_back(cmds);
}
}
std::string gctl::gmt::create_grid(const array<double> &data, int xnum, int ynum,
double xmin, double dx, double ymin, double dy)
{
if (seesion_ok_ == false)
throw std::runtime_error("[gctl::gmt] GMT session is not started.");
if (xnum*ynum != data.size())
throw std::runtime_error("[gctl::gmt] The size of data does not match the grid size.");
std::string gridname = session_name_ + "_grid_" + std::to_string(tmpfiles_.size() + 1) + ".nc";
gctl::save_netcdf_grid(gridname, data, xnum, ynum, xmin, dx, ymin, dy);
tmpfiles_.push_back(gridname);
return gridname;
}