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-rw-r--r--svg-flatten/Makefile1
-rw-r--r--svg-flatten/include/gerbolyze.hpp14
-rw-r--r--svg-flatten/src/out_scaler.cpp61
-rw-r--r--svg-flatten/src/svg_doc.cpp16
-rw-r--r--svg-flatten/testdata/svg/doc_unit_scale.svg47
5 files changed, 133 insertions, 6 deletions
diff --git a/svg-flatten/Makefile b/svg-flatten/Makefile
index 6822f47..fc5820f 100644
--- a/svg-flatten/Makefile
+++ b/svg-flatten/Makefile
@@ -24,6 +24,7 @@ SOURCES := src/svg_color.cpp \
src/out_sexp.cpp \
src/out_flattener.cpp \
src/out_dilater.cpp \
+ src/out_scaler.cpp \
src/lambda_sink.cpp \
src/flatten.cpp \
src/util.cpp \
diff --git a/svg-flatten/include/gerbolyze.hpp b/svg-flatten/include/gerbolyze.hpp
index 9b05bdb..7b70501 100644
--- a/svg-flatten/include/gerbolyze.hpp
+++ b/svg-flatten/include/gerbolyze.hpp
@@ -110,6 +110,20 @@ namespace gerbolyze {
GerberPolarityToken m_current_polarity = GRB_POL_DARK;
};
+ class Scaler : public PolygonSink {
+ public:
+ Scaler(PolygonSink &sink, double scale=1.0) : m_sink(sink), m_scale(scale) {}
+ virtual void header(d2p origin, d2p size);
+ virtual Scaler &operator<<(const Polygon &poly);
+ virtual Scaler &operator<<(const LayerNameToken &layer_name);
+ virtual Scaler &operator<<(GerberPolarityToken pol);
+ virtual void footer();
+
+ private:
+ PolygonSink &m_sink;
+ double m_scale;
+ };
+
class StreamPolygonSink : public PolygonSink {
public:
StreamPolygonSink(std::ostream &out, bool only_polys=false) : m_only_polys(only_polys), m_out(out) {}
diff --git a/svg-flatten/src/out_scaler.cpp b/svg-flatten/src/out_scaler.cpp
new file mode 100644
index 0000000..983dffe
--- /dev/null
+++ b/svg-flatten/src/out_scaler.cpp
@@ -0,0 +1,61 @@
+/*
+ * 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 <clipper.hpp>
+#include <svg_import_defs.h>
+#include <svg_geom.h>
+
+using namespace gerbolyze;
+using namespace std;
+
+void Scaler::header(d2p origin, d2p size) {
+ m_sink.header({origin[0] * m_scale, origin[1] * m_scale}, {size[0] * m_scale, size[1] * m_scale});
+}
+
+void Scaler::footer() {
+ m_sink.footer();
+}
+
+Scaler &Scaler::operator<<(const LayerNameToken &layer_name) {
+ m_sink << layer_name;
+
+ return *this;
+}
+
+Scaler &Scaler::operator<<(GerberPolarityToken pol) {
+ m_sink << pol;
+
+ return *this;
+}
+
+Scaler &Scaler::operator<<(const Polygon &poly) {
+ Polygon new_poly;
+ for (auto &p : poly) {
+ new_poly.push_back({ p[0] * m_scale, p[1] * m_scale });
+ }
+ m_sink << new_poly;
+
+ return *this;
+}
+
diff --git a/svg-flatten/src/svg_doc.cpp b/svg-flatten/src/svg_doc.cpp
index e59a7cc..865086f 100644
--- a/svg-flatten/src/svg_doc.cpp
+++ b/svg-flatten/src/svg_doc.cpp
@@ -383,19 +383,23 @@ void gerbolyze::SVGDocument::export_svg_path(xform2d &mat, const RenderSettings
void gerbolyze::SVGDocument::render(const RenderSettings &rset, PolygonSink &sink, const ElementSelector *sel) {
assert(_valid);
- /* Export the actual SVG document to both SVG for debuggin and to gerber. We do this as we go, i.e. we immediately
- * process each element to gerber as we encounter it instead of first rendering everything to a giant list of gerber
- * primitives and then serializing those later. Exporting them on the fly saves a ton of memory and is much faster.
+ /* Export the actual SVG document. We do this as we go, i.e. we immediately process each element to gerber as we
+ * encounter it instead of first rendering everything to a giant list of gerber primitives and then serializing
+ * those later. Exporting them on the fly saves a ton of memory and is much faster.
*/
- polygon_sink = &sink;
- sink.header({vb_x, vb_y}, {vb_w, vb_h});
+
+ /* Scale document pixels to mm for sinks */
+ Scaler scaler(sink, doc_units_to_mm(1.0));
+
+ polygon_sink = &scaler;
+ scaler.header({vb_x, vb_y}, {vb_w, vb_h});
ClipperLib::Clipper c;
c.AddPaths(vb_paths, ptSubject, /* closed */ true);
ClipperLib::IntRect bbox = c.GetBounds();
cerr << "document viewbox clip: bbox={" << bbox.left << ", " << bbox.top << "} - {" << bbox.right << ", " << bbox.bottom << "}" << endl;
xform2d xf;
export_svg_group(xf, rset, root_elem, vb_paths, sel, false, true);
- sink.footer();
+ scaler.footer();
}
void gerbolyze::SVGDocument::render_to_list(const RenderSettings &rset, vector<pair<Polygon, GerberPolarityToken>> &out, const ElementSelector *sel) {
diff --git a/svg-flatten/testdata/svg/doc_unit_scale.svg b/svg-flatten/testdata/svg/doc_unit_scale.svg
new file mode 100644
index 0000000..cba6aec
--- /dev/null
+++ b/svg-flatten/testdata/svg/doc_unit_scale.svg
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+ width="53.39mm"
+ height="32.4mm"
+ viewBox="0 0 151.34 91.83"
+ version="1.1"
+ id="svg1394"
+ sodipodi:docname="doc_unit_scale.svg"
+ inkscape:version="1.1 (c4e8f9ed74, 2021-05-24)"
+ xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+ xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:svg="http://www.w3.org/2000/svg">
+ <sodipodi:namedview
+ id="namedview1396"
+ pagecolor="#ffffff"
+ bordercolor="#666666"
+ borderopacity="1.0"
+ inkscape:pageshadow="2"
+ inkscape:pageopacity="0.0"
+ inkscape:pagecheckerboard="0"
+ inkscape:document-units="mm"
+ showgrid="false"
+ inkscape:zoom="2.8708564"
+ inkscape:cx="127.66225"
+ inkscape:cy="78.54799"
+ inkscape:window-width="1920"
+ inkscape:window-height="1024"
+ inkscape:window-x="0"
+ inkscape:window-y="0"
+ inkscape:window-maximized="1"
+ inkscape:current-layer="svg1394" />
+ <defs
+ id="defs4">
+ <style
+ id="style2">.cls-1{fill:#231f20;}</style>
+ </defs>
+ <rect
+ style="fill:#000000;stroke:none;stroke-width:1.9825;stroke-linecap:round;stroke-linejoin:bevel;stop-color:#000000"
+ id="rect2359"
+ width="99.211464"
+ height="42.519199"
+ x="28.346132"
+ y="14.16733"
+ rx="0"
+ ry="0" />
+</svg>