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gcodeProcessing.cc
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gcodeProcessing.cc
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/*
Diabase H-Series Cross-Platform Wizard
Copyright (c) 2021. Nick Colleran, Diabase Engineering, LLC
This file is part of Diabase H-Series Cross-Platform Wizard.
Diabase H-Series Cross-Platform Wizard is free software: you can
redistribute it and/or modify it under the terms of the GNU Affero
General Public License as published by the Free Software Foundation,
either version 3 of the License, or (at your option) any later version.
Diabase H-Series Cross-Platform Wizard 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with Diabase H-Series Cross-Platform Wizard. If not, see
<https://www.gnu.org/licenses/>.
*/
#include <nan.h>//This include might show a compiler error, but that is a mistake, and should not effect anything. Do not remove.
#define _CRT_SECURE_NO_WARNINGS
#define _USE_MATH_DEFINES
//Change currentOS to the desired buildOS
enum OS { windowsAndLinux, macOS };
OS currentOS = windowsAndLinux;
#include <cmath>
#include <iostream>
#include <vector>
#include <array>
#include <string>
#include <sstream>
#include <stdint.h>
#include <fstream>
# define M_PI 3.14159265358979323846
void write_gcode(std::string outFileName, std::string inFileName, double radius);
std::string scaleY(std::string line, double radius, double currentLayerHeight, double firstLayerHeight);
/* This is the main gcode processing method. It gets called with:
const addon = require('../build/Release/gcodeProcessing.node');
addon.gcodeProcessing(PathOfOriginalGcode, PathOfOutputLocation, Radius)
*/
void Add(const Nan::FunctionCallbackInfo < v8::Value > & info) {
v8::Local < v8::Context > context = info.GetIsolate() -> GetCurrentContext();
std::cout << "\nGcode processing started\n";
if (info.Length() != 3) {
Nan::ThrowTypeError("Required parameters: InFileName, OutFileName, radius");
return;
}
v8::Isolate * isolate = info.GetIsolate();
v8::String::Utf8Value utf8Infilename(isolate, info[0]);
std::string infilename( * utf8Infilename);
v8::String::Utf8Value utf8Outfilename(isolate, info[1]);
std::string outfilename( * utf8Outfilename);
double radius = info[2] -> NumberValue(context).FromJust();
std::cout << "\nHere is the info the script found. Make sure it is all correct:";
std::cout << "\nRadius: " << radius;
std::cout << "\nIn File: " << infilename;
std::cout << "\nOut File: " << outfilename;
try {
write_gcode(outfilename, infilename, radius);
info.GetReturnValue().Set(true);
} catch (std::exception & e) {
std::cout << e.what() << std::endl;
info.GetReturnValue().Set(false);
}
}
/*
This is the method that writes to the Gcode File.
It is called within the Add method.
*/
void write_gcode(std::string outFileName, std::string inFileName, double radius) {
std::ifstream inFile;
inFile.open((inFileName).c_str(), std::ios:: in );
std::ofstream outFile;
outFile.open((outFileName).c_str(), std::ios::out | std::ofstream::trunc);
outFile << ";Processed with Diabase Rotary Printing Wizard.\n";
std::string currentLine;
double mainLayerHeight = 0, firstLayerHeight = 0, currentLayerHeight = 0;
while (std::getline(inFile, currentLine)) {
if (currentLine.find(";Layer height: ") != std::string::npos) { // Cura Check for main layer height
std::size_t posOfLayerHeight = currentLine.find(";Layer height: ");
std::string layerHeightString = currentLine.substr(posOfLayerHeight + 15);
mainLayerHeight = std::stod(layerHeightString);
break;
} else if (currentLine.find("; layerHeight,") != std::string::npos) { // Simplify 3d Check for main layer height
std::size_t posOfLayerHeight = currentLine.find("; layerHeight,");
std::string layerHeightString = currentLine.substr(posOfLayerHeight + 16);
mainLayerHeight = std::stod(layerHeightString);
break;
}
}
while (std::getline(inFile, currentLine)) {
if (currentLine.find(";MINZ:") != std::string::npos) { // Cura Check for first layer height
std::size_t posOfFirstLayerHeight = currentLine.find(";MINZ:");
std::string firstLayerHeightString = currentLine.substr(posOfFirstLayerHeight + 6);
firstLayerHeight = std::stod(firstLayerHeightString);
currentLayerHeight = firstLayerHeight - mainLayerHeight;
break;
} else if (currentLine.find("; layer") != std::string::npos) { // Simplify 3d Check for first layer height
std::size_t posOfFirstLayerHeight = currentLine.find("; layer 1, Z = ");
std::string firstLayerHeightString = currentLine.substr(posOfFirstLayerHeight + 15);
firstLayerHeight = std::stod(firstLayerHeightString);
currentLayerHeight = firstLayerHeight;
break;
}
}
// Print error info to gcode file if needed info is not found
if (firstLayerHeight == 0) {
outFile << ";Could not find/calculate first layer height from Gcode. Process Failed.\n";
} else if (mainLayerHeight == 0) {
outFile << ";Could not find/calculate main layer height from Gcode. Process Failed.\n";
} else {
//Print found information to gcode file if all is well
outFile << ";Found Layer Height: ";
outFile << mainLayerHeight;
outFile << "\n";
outFile << ";Found First Layer Height: ";
outFile << firstLayerHeight;
outFile << "\n\n";
while (std::getline(inFile, currentLine)) {
if (currentLine.find(";LAYER:") != std::string::npos) {
currentLayerHeight += mainLayerHeight;
} else if (currentLine.find("; layer ") != std::string::npos) { //For each layer change after the initial layer, add the uniform layer height to the current z height
currentLayerHeight += mainLayerHeight;
}
switch(currentOS){
case windowsAndLinux: outFile << scaleY(currentLine, radius, currentLayerHeight, firstLayerHeight) << "\n"; break;
case macOS: outFile<<scaleY(currentLine, radius, currentLayerHeight, firstLayerHeight); break;
}
}
}
outFile << ";File Complete\n";
std::cout << "\nGcode file writing complete.";
outFile.close();
inFile.close();
}
/*
This is the method that can find the needed changes within a single gcode line.
It returns the changed line to be added to the output file.
*/
std::string scaleY(std::string line, double radius, double currentLayerHeight, double firstLayerHeight) {
double zFactor = radius + currentLayerHeight - firstLayerHeight;
double scaleFactor = 180 / (zFactor * M_PI);
double testNumber;
line = line + " ";
std::string output = line;
std::string num = "";
bool Yflag = false;
bool Negflag = false;
if (line.find("G28") != std::string::npos) {
return "G28 A";
} else if (line.find("G32") != std::string::npos) {
return "G29 S1";
}
for (int i = 0; i < line.length(); i++) {
if (Yflag) {
if (isdigit(line[i]) || line[i] == '.')
num += line[i];
else {
if (line[i] == '-') {
Negflag = true;
} else {
Yflag = false;
if (num.length() > 0) {
float number = std::stof(num);
testNumber = number;
number = number * scaleFactor;
std::ostringstream ss;
ss << number;
std::string s(ss.str());
if (Negflag) {
output = output.substr(0, i - num.length() - 2) + "A" + s + output.substr(i, output.length());
Negflag = false;
} else {
output = output.substr(0, i - num.length() - 1) + "A-" + s + output.substr(i, output.length());
}
}
}
}
}
if (line[i] == 'Y' && line[i + 1] != ' ')
Yflag = true;
}
return output;
}
/*
This exports the add method to be used as "gcodeProcessing".
*/
void Init(v8::Local < v8::Object > exports) {
v8::Local < v8::Context > context = exports -> CreationContext();
exports -> Set(context,
Nan::New("gcodeProcessing").ToLocalChecked(),
Nan::New < v8::FunctionTemplate > (Add)
-> GetFunction(context)
.ToLocalChecked());
}
NODE_MODULE(addon, Init)