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authorjaseg <git@jaseg.de>2023-03-22 12:12:40 +0100
committerjaseg <git@jaseg.de>2023-03-22 23:27:12 +0100
commita6adfe4d1d19096b45a5db144dd135b3fcf94371 (patch)
treedaca490fe3aae57291444eb463f770271b35c705 /svg-flatten/src/out_gdsii.cpp
parent70a7a0aa95282370a2c1c1aad4db556319770a18 (diff)
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svg-flatten: Add input scaling
Diffstat (limited to 'svg-flatten/src/out_gdsii.cpp')
-rw-r--r--svg-flatten/src/out_gdsii.cpp121
1 files changed, 121 insertions, 0 deletions
diff --git a/svg-flatten/src/out_gdsii.cpp b/svg-flatten/src/out_gdsii.cpp
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+/*
+ * 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 <time.h>
+#include <gerbolyze.hpp>
+#include <svg_import_defs.h>
+
+using namespace gerbolyze;
+using namespace std;
+
+SimpleGDSIIOutput::SimpleGDSIIOutput(ostream &out, bool only_polys=false, double scale, d2p offset, bool flip_polarity, std::string libname)
+ : StreamPolygonSink(out, only_polys),
+ m_offset(offset),
+ m_scale(scale),
+ m_flip_pol(flip_polarity),
+ m_libname(libname)
+{
+}
+
+void SimpleGDSIIOutput::header_impl(d2p origin, d2p size) {
+ m_offset[0] += origin[0] * m_scale;
+ m_offset[1] += origin[1] * m_scale;
+ m_width = (size[0] - origin[0]) * m_scale;
+ m_height = (size[1] - origin[1]) * m_scale;
+
+ gds_wr16(GDS_HEADER, {600});
+
+ time_t t = time(NULL);
+ struct tm;
+ gmtime_r(&t, &tm);
+ gds_wr16(GDS_BGNLIB, {tm.tm_year, tm.tm_month, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec,
+ tm.tm_year, tm.tm_month, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec});
+
+ gds_wr_str(GDS_LIBNAME, m_libname);
+}
+
+void gds_wr_d(uint16_t tag, double value) {
+ uint64_t d_ul = reinterpret_cast<uint64_t>(value);
+ uint64_t sign = !!(casted & (1ULL<<63));
+ int exp = (casted >> 52) & 0x7ffULL;
+ uint64_t mant = (casted & ((1ULL<<52)-1)) | (1ULL<<52);
+
+ int new_exp = (exp - 1023) / 4 + 64;
+ int exp_mod = (exp + 1) % 4;
+ uint64_t new_mant = mant * (1<<exp_mod);
+
+ gds_wr16
+}
+
+SimpleGDSIIOutput& SimpleGDSIIOutput::operator<<(GerberPolarityToken pol) {
+ assert(pol == GRB_POL_DARK || pol == GRB_POL_CLEAR);
+
+ if (m_outline_mode) {
+ assert(pol == GRB_POL_DARK);
+ }
+
+ if ((pol == GRB_POL_DARK) != m_flip_pol) {
+ m_out << "%LPD*%" << endl;
+ } else {
+ m_out << "%LPC*%" << endl;
+ }
+
+ return *this;
+}
+SimpleGDSIIOutput& SimpleGDSIIOutput::operator<<(const Polygon &poly) {
+ if (poly.size() < 3 && !m_outline_mode) {
+ cerr << "Warning: " << poly.size() << "-element polygon passed to SimpleGerberOutput" << endl;
+ return *this;
+ }
+
+ /* NOTE: Clipper and gerber both have different fixed-point scales. We get points in double mm. */
+ double x = round((poly[0][0] * m_scale + m_offset[0]) * m_gerber_scale);
+ double y = round((m_height - poly[0][1] * m_scale + m_offset[1]) * m_gerber_scale);
+ if (!m_outline_mode) {
+ m_out << "G36*" << endl;
+ }
+
+ m_out << "X" << setw(m_digits_int + m_digits_frac) << setfill('0') << std::internal /* isn't C++ a marvel of engineering? */ << (long long int)x
+ << "Y" << setw(m_digits_int + m_digits_frac) << setfill('0') << std::internal << (long long int)y
+ << "D02*" << endl;
+ m_out << "G01*" << endl;
+
+ for (size_t i=1; i<poly.size(); i++) {
+ double x = round((poly[i][0] * m_scale + m_offset[0]) * m_gerber_scale);
+ double y = round((m_height - poly[i][1] * m_scale + m_offset[1]) * m_gerber_scale);
+ m_out << "X" << setw(m_digits_int + m_digits_frac) << setfill('0') << std::internal << (long long int)x
+ << "Y" << setw(m_digits_int + m_digits_frac) << setfill('0') << std::internal << (long long int)y
+ << "D01*" << endl;
+ }
+
+ if (!m_outline_mode) {
+ m_out << "G37*" << endl;
+ }
+
+ return *this;
+}
+
+void SimpleGDSIIOutput::footer_impl() {
+
+}
+