90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/*
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* This file is part of gerbolyze, a vector image preprocessing toolchain
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* Copyright (C) 2021 Jan Sebastian Götte <gerbolyze@jaseg.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <cmath>
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#include <algorithm>
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#include <string>
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#include <iostream>
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#include <iomanip>
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#include <gerbolyze.hpp>
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#include <clipper.hpp>
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#include <svg_import_defs.h>
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#include <svg_geom.h>
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#include "polylinecombine.hpp"
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using namespace gerbolyze;
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using namespace std;
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void Dilater::header(d2p origin, d2p size) {
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m_sink.header(origin, size);
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}
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void Dilater::footer() {
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m_sink.footer();
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}
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Dilater &Dilater::operator<<(const LayerNameToken &layer_name) {
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m_sink << layer_name;
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return *this;
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}
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Dilater &Dilater::operator<<(GerberPolarityToken pol) {
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m_current_polarity = pol;
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m_sink << pol;
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return *this;
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}
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Dilater &Dilater::operator<<(const Polygon &poly) {
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static int i = 0;
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cerr << "dilating poly " << i++ << endl;
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cerr << "got poly of " << poly.size() << " nodes" << endl;
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ClipperLib::Path poly_c;
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for (auto &p : poly) {
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poly_c.push_back({(ClipperLib::cInt)round(p[0] * clipper_scale), (ClipperLib::cInt)round(p[1] * clipper_scale)});
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}
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ClipperLib::ClipperOffset offx;
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offx.ArcTolerance = 0.01 * clipper_scale; /* 10µm; TODO: Make this configurable */
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offx.AddPath(poly_c, ClipperLib::jtRound, ClipperLib::etClosedPolygon);
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double dilation = m_dilation;
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if (m_current_polarity == GRB_POL_CLEAR) {
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dilation = -dilation;
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}
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ClipperLib::PolyTree solution;
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offx.Execute(solution, dilation * clipper_scale);
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ClipperLib::Paths c_nice_polys;
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dehole_polytree(solution, c_nice_polys);
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for (auto &nice_poly : c_nice_polys) {
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Polygon new_poly;
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for (auto &p : nice_poly) {
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new_poly.push_back({
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(double)p.X / clipper_scale,
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(double)p.Y / clipper_scale });
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}
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m_sink << new_poly;
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}
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return *this;
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}
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