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Issue 1017 (#1023) 

* Write polygons as single POLYLINE or LWPOLYLINE to DXF

* DXF writer creates simple polygons from ones with holes in POLYLINE and LWPOLYLINE mode, added tests
This commit is contained in:
Matthias Köfferlein 2022-03-10 19:15:35 +01:00 committed by Matthias Koefferlein
parent e6a77a6d2b
commit 1b5ea72125
19 changed files with 2183 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

85
src/plugins/streamers/dxf/db_plugin/dbDXFWriter.cc
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@ -387,65 +387,56 @@ DXFWriter::write_polygons (const db::Layout & /*layout*/, const db::Cell &cell,
void
DXFWriter::write_polygon (const db::Polygon &polygon, double sf)
{
if (m_options.polygon_mode == 0) {
if (polygon.holes () > 0 && (m_options.polygon_mode == 0 || m_options.polygon_mode == 1 || m_options.polygon_mode == 2)) {
for (unsigned int c = 0; c < polygon.holes () + 1; ++c) {
// resolve holes or merge polygon as a preparation step
std::vector<db::Polygon> polygons;
*this << 0 << endl << "POLYLINE" << endl;
*this << 8 << endl; emit_layer (m_layer);
*this << 70 << endl << 1 << endl;
*this << 40 << endl << 0.0 << endl;
*this << 41 << endl << 0.0 << endl;
*this << 66 << endl << 1 << endl; // required by TrueView
for (db::Polygon::polygon_contour_iterator p = polygon.contour (c).begin (); p != polygon.contour (c).end (); ++p) {
*this << 0 << endl << "VERTEX" << endl;
*this << 8 << endl; emit_layer (m_layer); // required by TrueView
*this << 10 << endl << (*p).x () * sf << endl;
*this << 20 << endl << (*p).y () * sf << endl;
}
*this << 0 << endl << "SEQEND" << endl;
db::EdgeProcessor ep;
ep.insert_sequence (polygon.begin_edge ());
db::PolygonContainer pc (polygons);
db::PolygonGenerator out (pc, true /*resolve holes*/, false /*min coherence for splitting*/);
db::SimpleMerge op;
ep.process (out, op);
for (std::vector<db::Polygon>::const_iterator p = polygons.begin (); p != polygons.end (); ++p) {
write_polygon (*p, sf);
}
} else if (m_options.polygon_mode == 0) {
*this << 0 << endl << "POLYLINE" << endl;
*this << 8 << endl; emit_layer (m_layer);
*this << 70 << endl << 1 << endl;
*this << 40 << endl << 0.0 << endl;
*this << 41 << endl << 0.0 << endl;
*this << 66 << endl << 1 << endl; // required by TrueView
for (db::Polygon::polygon_contour_iterator p = polygon.begin_hull (); p != polygon.end_hull (); ++p) {
*this << 0 << endl << "VERTEX" << endl;
*this << 8 << endl; emit_layer (m_layer); // required by TrueView
*this << 10 << endl << (*p).x () * sf << endl;
*this << 20 << endl << (*p).y () * sf << endl;
}
*this << 0 << endl << "SEQEND" << endl;
} else if (m_options.polygon_mode == 1) {
for (unsigned int c = 0; c < polygon.holes () + 1; ++c) {
*this << 0 << endl << "LWPOLYLINE" << endl;
*this << 8 << endl; emit_layer (m_layer);
*this << 90 << endl << polygon.contour (0).size () << endl;
*this << 70 << endl << 1 << endl;
*this << 43 << endl << 0.0 << endl;
for (db::Polygon::polygon_contour_iterator p = polygon.contour (c).begin (); p != polygon.contour (c).end (); ++p) {
*this << 10 << endl << (*p).x () * sf << endl;
*this << 20 << endl << (*p).y () * sf << endl;
}
*this << 0 << endl << "LWPOLYLINE" << endl;
*this << 8 << endl; emit_layer (m_layer);
*this << 90 << endl << polygon.contour (0).size () << endl;
*this << 70 << endl << 1 << endl;
*this << 43 << endl << 0.0 << endl;
for (db::Polygon::polygon_contour_iterator p = polygon.begin_hull (); p != polygon.end_hull (); ++p) {
*this << 10 << endl << (*p).x () * sf << endl;
*this << 20 << endl << (*p).y () * sf << endl;
}
} else if (m_options.polygon_mode == 2) {
if (polygon.holes () > 0) {
// resolve holes or merge polygon as a preparation step for split_polygon which only works properly
// on merged polygons ...
std::vector<db::Polygon> polygons;
db::EdgeProcessor ep;
ep.insert_sequence (polygon.begin_edge ());
db::PolygonContainer pc (polygons);
db::PolygonGenerator out (pc, true /*resolve holes*/, false /*min coherence for splitting*/);
db::SimpleMerge op;
ep.process (out, op);
for (std::vector<db::Polygon>::const_iterator p = polygons.begin (); p != polygons.end (); ++p) {
write_polygon (*p, sf);
}
} else if (polygon.vertices () > 4) {
if (polygon.vertices () > 4) {
std::vector <db::Polygon> polygons;
db::split_polygon (polygon, polygons);

247
src/plugins/streamers/dxf/unit_tests/dbDXFWriterTests.cc Normal file
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@ -0,0 +1,247 @@
/*
KLayout Layout Viewer
Copyright (C) 2006-2022 Matthias Koefferlein
This program 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 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "dbReader.h"
#include "dbRegion.h"
#include "dbDXFWriter.h"
#include "dbDXFFormat.h"
#include "dbTestSupport.h"
#include "dbRecursiveShapeIterator.h"
#include "tlUnitTest.h"
#include "tlStream.h"
#include <stdlib.h>
static void do_run_test (tl::TestBase *_this, db::Layout &layout, const std::string &fn_au, const db::DXFWriterOptions &opt)
{
std::string tmp = _this->tmp_file ("tmp.dxf");
db::SaveLayoutOptions options;
options.set_options (new db::DXFWriterOptions (opt));
options.set_format ("DXF");
{
tl::OutputStream stream (tmp);
db::Writer writer (options);
writer.write (layout, stream);
}
_this->compare_text_files (tmp, fn_au);
}
static void run_test (tl::TestBase *_this, const char *file, const char *file_au, const db::DXFWriterOptions &opt = db::DXFWriterOptions ())
{
std::string fn = tl::testdata_private () + "/dxf/" + file;
db::Layout layout;
{
tl::InputStream stream (fn);
db::Reader reader (stream);
reader.read (layout);
}
std::string fn_au = tl::testdata_private () + std::string ("/dxf/") + file_au;
do_run_test (_this, layout, fn_au, opt);
}
static void run_test_public (tl::TestBase *_this, const char *file, const char *file_au, const db::DXFWriterOptions &opt = db::DXFWriterOptions ())
{
std::string fn = tl::testdata () + "/dxf/" + file;
std::string fn_au = tl::testdata () + std::string ("/dxf/") + file_au;
db::Layout layout;
{
tl::InputStream stream (fn);
db::Reader reader (stream);
reader.read (layout);
}
do_run_test (_this, layout, fn_au, opt);
}
TEST(Polygons1a)
{
db::DXFWriterOptions opt;
run_test_public (_this, "dxf1.gds", "dxf1a_au.dxf", opt);
}
TEST(Polygons1b)
{
db::DXFWriterOptions opt;
opt.polygon_mode = 1;
run_test_public (_this, "dxf1.gds", "dxf1b_au.dxf", opt);
}
TEST(Polygons1c)
{
db::DXFWriterOptions opt;
opt.polygon_mode = 2;
run_test_public (_this, "dxf1.gds", "dxf1c_au.dxf", opt);
}
TEST(Polygons1d)
{
db::DXFWriterOptions opt;
opt.polygon_mode = 3;
run_test_public (_this, "dxf1.gds", "dxf1d_au.dxf", opt);
}
TEST(Polygons1e)
{
db::DXFWriterOptions opt;
opt.polygon_mode = 4;
run_test_public (_this, "dxf1.gds", "dxf1e_au.dxf", opt);
}
TEST(Polygons2)
{
db::DXFWriterOptions opt;
run_test_public (_this, "dxf2.gds", "dxf2_au.dxf", opt);
}
TEST(Polygons3)
{
db::DXFWriterOptions opt;
run_test_public (_this, "dxf3.gds", "dxf3_au.dxf", opt);
}
TEST(Polygons4a)
{
db::Layout l;
std::string fn = tl::testdata () + "/dxf/dxf4.gds";
{
tl::InputStream stream (fn);
db::Reader reader (stream);
reader.read (l);
}
unsigned int l1 = l.get_layer (db::LayerProperties (1, 0));
unsigned int l2 = l.get_layer (db::LayerProperties (2, 0));
unsigned int l100 = l.get_layer (db::LayerProperties (100, 0));
db::Region r1 = db::Region (db::RecursiveShapeIterator (l, l.cell (*l.begin_top_down ()), l1));
db::Region r2 = db::Region (db::RecursiveShapeIterator (l, l.cell (*l.begin_top_down ()), l2));
(r1 ^ r2).insert_into (&l, *l.begin_top_down (), l100);
db::DXFWriterOptions opt;
do_run_test (_this, l, tl::testdata () + std::string ("/dxf/") + "dxf4a_au.dxf", opt);
}
TEST(Polygons4b)
{
db::Layout l;
std::string fn = tl::testdata () + "/dxf/dxf4.gds";
{
tl::InputStream stream (fn);
db::Reader reader (stream);
reader.read (l);
}
unsigned int l1 = l.get_layer (db::LayerProperties (1, 0));
unsigned int l2 = l.get_layer (db::LayerProperties (2, 0));
unsigned int l100 = l.get_layer (db::LayerProperties (100, 0));
db::Region r1 = db::Region (db::RecursiveShapeIterator (l, l.cell (*l.begin_top_down ()), l1));
db::Region r2 = db::Region (db::RecursiveShapeIterator (l, l.cell (*l.begin_top_down ()), l2));
(r1 ^ r2).insert_into (&l, *l.begin_top_down (), l100);
db::DXFWriterOptions opt;
opt.polygon_mode = 1;
do_run_test (_this, l, tl::testdata () + std::string ("/dxf/") + "dxf4b_au.dxf", opt);
}
TEST(Polygons4c)
{
db::Layout l;
std::string fn = tl::testdata () + "/dxf/dxf4.gds";
{
tl::InputStream stream (fn);
db::Reader reader (stream);
reader.read (l);
}
unsigned int l1 = l.get_layer (db::LayerProperties (1, 0));
unsigned int l2 = l.get_layer (db::LayerProperties (2, 0));
unsigned int l100 = l.get_layer (db::LayerProperties (100, 0));
db::Region r1 = db::Region (db::RecursiveShapeIterator (l, l.cell (*l.begin_top_down ()), l1));
db::Region r2 = db::Region (db::RecursiveShapeIterator (l, l.cell (*l.begin_top_down ()), l2));
(r1 ^ r2).insert_into (&l, *l.begin_top_down (), l100);
db::DXFWriterOptions opt;
opt.polygon_mode = 2;
do_run_test (_this, l, tl::testdata () + std::string ("/dxf/") + "dxf4c_au.dxf", opt);
}
TEST(Polygons4d)
{
db::Layout l;
std::string fn = tl::testdata () + "/dxf/dxf4.gds";
{
tl::InputStream stream (fn);
db::Reader reader (stream);
reader.read (l);
}
unsigned int l1 = l.get_layer (db::LayerProperties (1, 0));
unsigned int l2 = l.get_layer (db::LayerProperties (2, 0));
unsigned int l100 = l.get_layer (db::LayerProperties (100, 0));
db::Region r1 = db::Region (db::RecursiveShapeIterator (l, l.cell (*l.begin_top_down ()), l1));
db::Region r2 = db::Region (db::RecursiveShapeIterator (l, l.cell (*l.begin_top_down ()), l2));
(r1 ^ r2).insert_into (&l, *l.begin_top_down (), l100);
db::DXFWriterOptions opt;
opt.polygon_mode = 3;
do_run_test (_this, l, tl::testdata () + std::string ("/dxf/") + "dxf4d_au.dxf", opt);
}
TEST(Polygons4e)
{
db::Layout l;
std::string fn = tl::testdata () + "/dxf/dxf4.gds";
{
tl::InputStream stream (fn);
db::Reader reader (stream);
reader.read (l);
}
unsigned int l1 = l.get_layer (db::LayerProperties (1, 0));
unsigned int l2 = l.get_layer (db::LayerProperties (2, 0));
unsigned int l100 = l.get_layer (db::LayerProperties (100, 0));
db::Region r1 = db::Region (db::RecursiveShapeIterator (l, l.cell (*l.begin_top_down ()), l1));
db::Region r2 = db::Region (db::RecursiveShapeIterator (l, l.cell (*l.begin_top_down ()), l2));
(r1 ^ r2).insert_into (&l, *l.begin_top_down (), l100);
db::DXFWriterOptions opt;
opt.polygon_mode = 4;
do_run_test (_this, l, tl::testdata () + std::string ("/dxf/") + "dxf4e_au.dxf", opt);
}

3
src/plugins/streamers/dxf/unit_tests/unit_tests.pro
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@ -6,7 +6,8 @@ TARGET = dxf_tests
include($$PWD/../../../../lib_ut.pri)
SOURCES = \
dbDXFReaderTests.cc
dbDXFReaderTests.cc \
dbDXFWriterTests.cc
INCLUDEPATH += $$LAY_INC $$TL_INC $$DB_INC $$GSI_INC $$PWD/../db_plugin $$PWD/../../../common
DEPENDPATH += $$LAY_INC $$TL_INC $$DB_INC $$GSI_INC $$PWD/../db_plugin $$PWD/../../../common

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testdata/dxf/dxf1.gds vendored Normal file
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110
testdata/dxf/dxf1a_au.dxf vendored Normal file
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@ -0,0 +1,110 @@
0
SECTION
2
HEADER
9
$ACADVER
1
AC1006
0
ENDSEC
0
SECTION
2
TABLES
0
TABLE
2
LAYER
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1
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testdata/dxf/dxf1b_au.dxf vendored Normal file
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@ -0,0 +1,82 @@
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testdata/dxf/dxf1c_au.dxf vendored Normal file
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@ -0,0 +1,88 @@
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EOF

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testdata/dxf/dxf1d_au.dxf vendored Normal file
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@ -0,0 +1,88 @@
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testdata/dxf/dxf1e_au.dxf vendored Normal file
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@ -0,0 +1,132 @@
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0
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2
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9
$ACADVER
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AC1006
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