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koppi/ngc-hole.cpp

Created June 19, 2016 20:07
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  1. koppi created this gist Jun 19, 2016.
    153 changes: 153 additions & 0 deletions ngc-hole.cpp
    View file
    Original file line number Diff line number Diff line change
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    /*
    * Copyright 2016 Jakob Flierl (jakob.flierl "at" gmail.com)
    *
    * ngc-hole 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.
    *
    * ngc-hole 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 stl2ngc. If not, see <http://www.gnu.org/licenses/>.
    */

    // make LDLIBS+=`pkg-config --libs ImageMagick++` CXXFLAGS+="-std=gnu++14 `pkg-config --cflags ImageMagick++`" ngc-hole

    #include <Magick++.h>
    #include <iostream>

    #include <locale>
    #include <clocale>

    #include <stdarg.h> // For va_start, etc.
    #include <memory> // For std::unique_ptr
    #include <string.h>

    using namespace std;
    using namespace Magick;

    string fmt(const string fmt_str, ...) {
    int final_n, n = ((int)fmt_str.size()) * 2;
    string str;
    unique_ptr<char[]> formatted;
    va_list ap;
    while(1) {
    formatted.reset(new char[n]);
    strcpy(&formatted[0], fmt_str.c_str());
    va_start(ap, fmt_str);
    final_n = vsnprintf(&formatted[0], n, fmt_str.c_str(), ap);
    va_end(ap);
    if (final_n < 0 || final_n >= n)
    n += abs(final_n - n + 1);
    else
    break;
    }
    return string(formatted.get());
    }

    double mm2inch(double mm) {
    return mm / 2.54;
    }

    #define flt "%.4f"

    // drill a hole at x,y with zdepth and retract to zsafe afterwards
    // f is the z feedrate
    void hole(double x, double y, double ztop = 0.1, double zdepth = -1.0,
    double zsafe = 1.0, double f = 50.0) {

    cout << fmt("G0 X" flt " Y" flt, x, y) << endl;
    cout << fmt("Z" flt, ztop) << endl;
    cout << fmt("G1 Z" flt " F" flt, zdepth, f) << endl;
    cout << fmt("G0 Z" flt, zsafe) << endl;
    }

    // drill a hole for every colored pixel on the image
    void img2holes(int argc, char** argv) {
    Image image;

    InitializeMagick(*argv);

    image.read(argv[1]); // load the image file

    cout << "G20" << endl; // programming in inches
    //cout << "G21" << endl; // programming in millimeters (mm)
    //cout << "T01" << endl; // select tool nr 1
    cout << "M03 S20000" << endl; // spindle on (clockwise rotation)

    int w = image.columns();
    int h = image.rows();

    int dir = 1;
    for (int i = 0; i <= w; ++i) {
    if (dir == 1) {
    for (int j = 0; j <= h; ++j) {
    ColorRGB rgb(image.pixelColor(i,h-j));
    if (rgb.red() <= 0.5) {
    hole(i*0.1, j*0.1, mm2inch(0.1), -0.062, mm2inch(0.1));
    }
    }
    dir = -1;
    } else {
    for (int j = h; j >= 0; --j) {
    ColorRGB rgb(image.pixelColor(i,h-j));
    if (rgb.red() <= 0.5) {
    hole(i*0.1, j*0.1, mm2inch(0.1), -0.062, mm2inch(0.1));
    }
    }
    dir = 1;
    }
    }

    cout << "M05" << endl; // spindle stop
    cout << fmt("G0 Z" flt, mm2inch(0.1)) << endl;
    cout << "G0 X0 Y0" << endl;
    cout << "M2" << endl; // LinuxCNC: end the program
    }

    void spiral(int argc, char** argv) {
    cout << "G20" << endl; // programming in inches
    //cout << "G21" << endl; // programming in millimeters (mm)
    //cout << "T01" << endl; // select tool nr 1
    cout << "M03 S20000" << endl; // spindle on (clockwise rotation)

    // a hole in the center
    hole(0, 0, mm2inch(0.1), -0.062, mm2inch(0.1));

    // some spirals
    for (int i = 0; i <= 3; ++i) {
    double off = i * M_PI / 2;
    for (double t = M_PI; t <= 10 * M_PI; t+=0.25) {
    double d = 0.05;
    hole(t*sin(t+off)*d, t*cos(t+off)*d, mm2inch(0.1), -0.062, mm2inch(0.1));
    }
    }

    cout << "M05" << endl; // spindle stop
    cout << fmt("G0 Z" flt, mm2inch(0.1)) << endl;
    cout << "G0 X0 Y0" << endl;
    cout << "M2" << endl; // LinuxCNC: end the program
    }

    int main(int argc, char** argv) {

    // make sure, a dot is printed not comma as used in some locales
    setlocale(LC_ALL, "");
    locale::global(locale(""));
    cout.imbue(locale());

    // turn of scientific notation
    cout.setf(ios::fixed, ios::floatfield);
    cout.setf(ios::showpoint);

    // some functions
    spiral(argc, argv);
    //img2holes(argc, argv);

    return 0;
    }