OpenDroneMap-NodeODM/libs/gdalRunner.js

72 wiersze
2.3 KiB
JavaScript

/*
Node-OpenDroneMap Node.js App and REST API to access OpenDroneMap.
Copyright (C) 2016 Node-OpenDroneMap Contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
"use strict";
let fs = require('fs');
let path = require('path');
let assert = require('assert');
let spawn = require('child_process').spawn;
let config = require('../config.js');
let logger = require('./logger');
module.exports = {
runTiler: function(options, done, outputReceived){
assert(options.zoomLevels !== undefined, "zoomLevels must be defined");
assert(options.inputFile !== undefined, "inputFile must be defined");
assert(options.outputDir !== undefined, "outputDir must be defined");
let command = ["-z", options.zoomLevels,
"-n",
fs.realpathSync(options.inputFile),
fs.realpathSync(option.outputDir)
];
logger.info(`About to run: gdal2tiles.py ${command.join(" ")}`);
if (config.test){
logger.info("Test mode is on, command will not execute");
let outputTestFile = path.join("..", "tests", "gdal2tiles_output.txt");
fs.readFile(path.resolve(__dirname, outputTestFile), 'utf8', (err, text) => {
if (!err){
let lines = text.split("\n");
lines.forEach(line => outputReceived(line));
done(null, 0, null);
}else{
logger.warn(`Error: ${err.message}`);
done(err);
}
});
return;// Skip rest
}
// Launch
let childProcess = spawn("gdal2tiles.py", command, {cwd: config.odm_path});
childProcess
.on('exit', (code, signal) => done(null, code, signal))
.on('error', done);
childProcess.stdout.on('data', chunk => outputReceived(chunk.toString()));
childProcess.stderr.on('data', chunk => outputReceived(chunk.toString()));
return childProcess;
}
};