gerbolyze/svg-flatten/src/out_svg.cpp
2023-03-29 22:21:15 +02:00

104 lines
3.4 KiB
C++

/*
* This file is part of gerbolyze, a vector image preprocessing toolchain
* Copyright (C) 2021 Jan Sebastian Götte <gerbolyze@jaseg.de>
*
* This program 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.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <cmath>
#include <algorithm>
#include <string>
#include <iostream>
#include <iomanip>
#include <gerbolyze.hpp>
#include <svg_import_defs.h>
using namespace gerbolyze;
using namespace std;
SimpleSVGOutput::SimpleSVGOutput(ostream &out, bool only_polys, int digits_frac, string dark_color, string clear_color)
: StreamPolygonSink(out, only_polys),
m_digits_frac(digits_frac),
m_dark_color(dark_color),
m_clear_color(clear_color),
m_current_color(dark_color),
m_stroke_width(std::nan("0"))
{
}
void SimpleSVGOutput::header_impl(d2p origin, d2p size) {
//cerr << "svg: header" << endl;
m_offset[0] = origin[0];
m_offset[1] = origin[1];
m_out << "<svg width=\"" << size[0] << "mm\" height=\"" << size[1] << "mm\" viewBox=\"0 0 "
<< size[0] << " " << size[1] << "\" xmlns=\"http://www.w3.org/2000/svg\">" << endl;
}
SimpleSVGOutput &SimpleSVGOutput::operator<<(GerberPolarityToken pol) {
//cerr << "svg: got polarity " << pol << endl;
if (pol == GRB_POL_DARK) {
m_current_color = m_dark_color;
} else if (pol == GRB_POL_CLEAR) {
m_current_color = m_clear_color;
} else {
assert(false);
}
return *this;
}
SimpleSVGOutput &SimpleSVGOutput::operator<<(const ApertureToken &ap) {
m_stroke_width = ap.m_has_aperture ? ap.m_size : std::nan("0");
return *this;
}
SimpleSVGOutput &SimpleSVGOutput::operator<<(const Polygon &poly) {
//cerr << "svg: got poly of size " << poly.size() << endl;
if (std::isnan(m_stroke_width) && poly.size() < 3) {
cerr << "Warning: " << poly.size() << "-element polygon passed to SimpleSVGOutput in fill mode" << endl;
return *this;
}
if (std::isnan(m_stroke_width)) {
m_out << "<path fill=\"" << m_current_color << "\" d=\"";
} else {
m_out << "<path stroke=\"" << m_current_color << "\" stroke-width=\"" << m_stroke_width << "\" stroke-linejoin=\"round\" stroke-linecap=\"round\" d=\"";
}
m_out << "M " << setprecision(m_digits_frac) << (poly[0][0] + m_offset[0])
<< " " << setprecision(m_digits_frac) << (poly[0][1] + m_offset[1]);
for (size_t i=1; i<poly.size(); i++) {
m_out << " L " << setprecision(m_digits_frac) << (poly[i][0] + m_offset[0])
<< " " << setprecision(m_digits_frac) << (poly[i][1] + m_offset[1]);
}
if (std::isnan(m_stroke_width)) {
m_out << " Z";
}
m_out << "\"/>" << endl;
return *this;
}
SimpleSVGOutput &SimpleSVGOutput::operator<<(const FlashToken &) {
return *this;
}
void SimpleSVGOutput::footer_impl() {
//cerr << "svg: footer" << endl;
m_out << "</svg>" << endl;
}