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LasWriterTest.cpp
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LasWriterTest.cpp
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/******************************************************************************
* Copyright (c) 2011, Michael P. Gerlek (mpg@flaxen.com)
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Hobu, Inc. or Flaxen Geo Consulting nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
****************************************************************************/
#include <pdal/pdal_test_main.hpp>
#include <stdlib.h>
#include <pdal/pdal_features.hpp>
#include <pdal/PointView.hpp>
#include <pdal/StageFactory.hpp>
#include <pdal/StageWrapper.hpp>
#include <pdal/util/FileUtils.hpp>
#include <io/BufferReader.hpp>
#include <io/LasHeader.hpp>
#include <io/LasReader.hpp>
#include <io/LasWriter.hpp>
#include <io/BpfReader.hpp>
#include "Support.hpp"
namespace pdal
{
//ABELL - Should probably be moved to its own file.
class LasTester
{
public:
LasHeader *header(LasWriter& w)
{ return &w.m_lasHeader; }
SpatialReference srs(LasWriter& w)
{ return w.m_srs; }
void addVlr(LasWriter& w, const std::string& userId, uint16_t recordId,
std::string description, std::vector<uint8_t>& data)
{ w.addVlr(userId, recordId, description, data); }
};
} // namespace pdal
using namespace pdal;
TEST(LasWriterTest, srs)
{
Options readerOps;
readerOps.add("filename", Support::datapath("las/utm15.las"));
LasReader reader;
reader.setOptions(readerOps);
Options writerOps;
writerOps.add("filename", Support::temppath("out.las"));
LasWriter writer;
writer.setInput(reader);
writer.setOptions(writerOps);
PointTable table;
writer.prepare(table);
writer.execute(table);
LasTester tester;
SpatialReference srs = tester.srs(writer);
EXPECT_EQ(srs, "EPSG:26915");
}
TEST(LasWriterTest, srs2)
{
Options readerOps;
readerOps.add("filename", Support::datapath("las/utm15.las"));
LasReader reader;
reader.setOptions(readerOps);
Options writerOps;
writerOps.add("filename", Support::temppath("out.las"));
writerOps.add("a_srs", "EPSG:32615");
LasWriter writer;
writer.setInput(reader);
writer.setOptions(writerOps);
PointTable table;
writer.prepare(table);
writer.execute(table);
LasTester tester;
SpatialReference srs = tester.srs(writer);
EXPECT_EQ(srs, "EPSG:32615");
}
TEST(LasWriterTest, auto_offset)
{
using namespace Dimension;
const std::string FILENAME(Support::temppath("offset_test.las"));
PointTable table;
table.layout()->registerDims({Id::X, Id::Y, Id::Z});
BufferReader bufferReader;
PointViewPtr view(new PointView(table));
view->setField(Id::X, 0, 125000.00);
view->setField(Id::X, 1, 74529.00);
view->setField(Id::X, 2, 1000000.02);
view->setField(Id::Y, 0, 0);
view->setField(Id::Y, 1, 1);
view->setField(Id::Y, 2, 2);
view->setField(Id::Z, 0, -123);
view->setField(Id::Z, 1, 456.78);
view->setField(Id::Z, 2, 945.23);
bufferReader.addView(view);
view.reset(new PointView(table));
view->setField(Id::X, 0, 25.00);
view->setField(Id::X, 1, 74529.00);
view->setField(Id::X, 2, 534252.35);
view->setField(Id::Y, 0, 3);
view->setField(Id::Y, 1, 4);
view->setField(Id::Y, 2, 5);
view->setField(Id::Z, 0, 1.5);
view->setField(Id::Z, 1, 2147483524);
view->setField(Id::Z, 2, 745.23);
bufferReader.addView(view);
Options writerOps;
writerOps.add("filename", FILENAME);
writerOps.add("offset_x", "auto");
writerOps.add("scale_x", "auto");
writerOps.add("offset_z", "auto");
writerOps.add("scale_z", "auto");
LasWriter writer;
writer.setOptions(writerOps);
writer.setInput(bufferReader);
writer.prepare(table);
writer.execute(table);
Options readerOps;
readerOps.add("filename", FILENAME);
PointTable readTable;
LasReader reader;
reader.setOptions(readerOps);
reader.prepare(readTable);
EXPECT_DOUBLE_EQ(25.00, reader.header().offsetX());
EXPECT_DOUBLE_EQ(0, reader.header().offsetY());
EXPECT_DOUBLE_EQ(-123, reader.header().offsetZ());
EXPECT_DOUBLE_EQ(0.00046564965530561733, reader.header().scaleX());
EXPECT_DOUBLE_EQ(.01, reader.header().scaleY());
// (max - min) are chosen to yield std::numeric_limits<int>::max();
EXPECT_DOUBLE_EQ(1.0, reader.header().scaleZ());
PointViewSet viewSet = reader.execute(readTable);
EXPECT_EQ(viewSet.size(), 1u);
view = *viewSet.begin();
EXPECT_EQ(view->size(), 6u);
EXPECT_NEAR(125000.00, view->getFieldAs<double>(Id::X, 0), .0001);
EXPECT_NEAR(74529.00, view->getFieldAs<double>(Id::X, 1), .001);
EXPECT_NEAR(1000000.02, view->getFieldAs<double>(Id::X, 2), .0001);
EXPECT_NEAR(25.00, view->getFieldAs<double>(Id::X, 3), .0001);
EXPECT_NEAR(74529.00, view->getFieldAs<double>(Id::X, 4), .001);
EXPECT_NEAR(534252.35, view->getFieldAs<double>(Id::X, 5), .0001);
FileUtils::deleteFile(FILENAME);
}
// Identical to above, but writes each input view to a separate output file.
TEST(LasWriterTest, auto_offset2)
{
using namespace Dimension;
const std::string outname(Support::temppath("offset_test#.las"));
const std::string inname1(Support::temppath("offset_test1.las"));
const std::string inname2(Support::temppath("offset_test2.las"));
PointTable table;
table.layout()->registerDims({Id::X, Id::Y, Id::Z});
BufferReader bufferReader;
PointViewPtr view(new PointView(table));
view->setField(Id::X, 0, 125000.00);
view->setField(Id::X, 1, 74529.00);
view->setField(Id::X, 2, 1000000.02);
view->setField(Id::Y, 0, 0);
view->setField(Id::Y, 1, 1);
view->setField(Id::Y, 2, 2);
view->setField(Id::Z, 0, -123);
view->setField(Id::Z, 1, 456.78);
view->setField(Id::Z, 2, 945.23);
bufferReader.addView(view);
view.reset(new PointView(table));
view->setField(Id::X, 0, 25.00);
view->setField(Id::X, 1, 74529.00);
view->setField(Id::X, 2, 534252.35);
view->setField(Id::Y, 0, 3);
view->setField(Id::Y, 1, 4);
view->setField(Id::Y, 2, 5);
view->setField(Id::Z, 0, 1.5);
view->setField(Id::Z, 1, 2147483524);
view->setField(Id::Z, 2, 745.23);
bufferReader.addView(view);
Options writerOps;
writerOps.add("filename", outname);
writerOps.add("offset_x", "auto");
writerOps.add("scale_x", "auto");
writerOps.add("offset_z", "auto");
writerOps.add("scale_z", "auto");
LasWriter writer;
writer.setOptions(writerOps);
writer.setInput(bufferReader);
writer.prepare(table);
writer.execute(table);
{
Options readerOps;
readerOps.add("filename", inname1);
PointTable readTable;
LasReader reader;
reader.setOptions(readerOps);
reader.prepare(readTable);
EXPECT_DOUBLE_EQ(74529.00, reader.header().offsetX());
EXPECT_DOUBLE_EQ(0, reader.header().offsetY());
EXPECT_DOUBLE_EQ(-123, reader.header().offsetZ());
EXPECT_NEAR(4.30956e-4, reader.header().scaleX(), 1e-4);
EXPECT_DOUBLE_EQ(.01, reader.header().scaleY());
// (max - min) are chosen to yield std::numeric_limits<int>::max();
EXPECT_NEAR(4.9743e-7, reader.header().scaleZ(), 1e-7);
PointViewSet viewSet = reader.execute(readTable);
EXPECT_EQ(viewSet.size(), 1u);
view = *viewSet.begin();
EXPECT_EQ(view->size(), 3u);
EXPECT_NEAR(125000.00, view->getFieldAs<double>(Id::X, 0), .001);
EXPECT_NEAR(74529.00, view->getFieldAs<double>(Id::X, 1), .001);
EXPECT_NEAR(1000000.02, view->getFieldAs<double>(Id::X, 2), .0001);
}
{
Options readerOps;
readerOps.add("filename", inname2);
PointTable readTable;
LasReader reader;
reader.setOptions(readerOps);
reader.prepare(readTable);
EXPECT_DOUBLE_EQ(25.0, reader.header().offsetX());
EXPECT_DOUBLE_EQ(0, reader.header().offsetY());
EXPECT_DOUBLE_EQ(1.5, reader.header().offsetZ());
EXPECT_NEAR(2.4876e-4, reader.header().scaleX(), 1e-7);
EXPECT_DOUBLE_EQ(.01, reader.header().scaleY());
EXPECT_NEAR(.99999, reader.header().scaleZ(), 1e-5);
PointViewSet viewSet = reader.execute(readTable);
EXPECT_EQ(viewSet.size(), 1u);
view = *viewSet.begin();
EXPECT_EQ(view->size(), 3u);
EXPECT_NEAR(25.00, view->getFieldAs<double>(Id::X, 0), .0001);
EXPECT_NEAR(74529.00, view->getFieldAs<double>(Id::X, 1), .001);
EXPECT_NEAR(534252.35, view->getFieldAs<double>(Id::X, 2), .0001);
}
FileUtils::deleteFile(inname1);
FileUtils::deleteFile(inname2);
}
TEST(LasWriterTest, extra_dims)
{
Options readerOps;
readerOps.add("filename", Support::datapath("las/1.2-with-color.las"));
LasReader reader;
reader.setOptions(readerOps);
Options writerOps;
writerOps.add("extra_dims", "Red=int32, Blue = int16, Green = int32_t");
writerOps.add("filename", Support::temppath("simple.las"));
LasWriter writer;
writer.setInput(reader);
writer.setOptions(writerOps);
PointTable table;
writer.prepare(table);
PointViewSet viewSet = writer.execute(table);
LasTester tester;
LasHeader *header = tester.header(writer);
EXPECT_EQ(header->pointLen(), header->basePointLen() + 10);
PointViewPtr pb = *viewSet.begin();
uint16_t colors[][3] = {
{ 68, 77, 88 },
{ 92, 100, 110 },
{ 79, 87, 87 },
{ 100, 102, 116 },
{ 162, 114, 145 },
{ 163, 137, 155 },
{ 154, 131, 144 },
{ 104, 111, 126 },
{ 164, 136, 156 },
{ 72, 87, 82 },
{ 117, 117, 136 }
};
Options reader2Ops;
reader2Ops.add("filename", Support::temppath("simple.las"));
reader2Ops.add("extra_dims", "R1 =int32, B1= int16 ,G1=int32_t");
LasReader reader2;
reader2.setOptions(reader2Ops);
PointTable readTable;
reader2.prepare(readTable);
viewSet = reader2.execute(readTable);
pb = *viewSet.begin();
Dimension::Id r1 = readTable.layout()->findDim("R1");
EXPECT_TRUE(r1 != Dimension::Id::Unknown);
Dimension::Id b1 = readTable.layout()->findDim("B1");
EXPECT_TRUE(b1 != Dimension::Id::Unknown);
Dimension::Id g1 = readTable.layout()->findDim("G1");
EXPECT_TRUE(g1 != Dimension::Id::Unknown);
EXPECT_EQ(pb->size(), (size_t)1065);
size_t j = 0;
for (PointId i = 0; i < pb->size(); i += 100)
{
EXPECT_EQ(pb->getFieldAs<int16_t>(r1, i), colors[j][0]);
EXPECT_EQ(pb->getFieldAs<int16_t>(g1, i), colors[j][1]);
EXPECT_EQ(pb->getFieldAs<int16_t>(b1, i), colors[j][2]);
j++;
}
}
TEST(LasWriterTest, all_extra_dims)
{
Options readerOps;
readerOps.add("filename", Support::datapath("bpf/simple-extra.bpf"));
BpfReader reader;
reader.setOptions(readerOps);
FileUtils::deleteFile(Support::temppath("simple.las"));
Options writerOps;
writerOps.add("extra_dims", "all");
writerOps.add("filename", Support::temppath("simple.las"));
writerOps.add("minor_version", 4);
LasWriter writer;
writer.setInput(reader);
writer.setOptions(writerOps);
PointTable table;
writer.prepare(table);
writer.execute(table);
Options ops;
ops.add("filename", Support::temppath("simple.las"));
LasReader r;
r.setOptions(ops);
PointTable t2;
r.prepare(t2);
Dimension::Id foo = t2.layout()->findDim("Foo");
Dimension::Id bar = t2.layout()->findDim("Bar");
Dimension::Id baz = t2.layout()->findDim("Baz");
PointViewSet s = r.execute(t2);
EXPECT_EQ(s.size(), 1u);
PointViewPtr v = *s.begin();
// We test for floats instead of doubles because when X, Y and Z
// get written, they are written scaled, which loses precision. The
// foo, bar and baz values are written as full-precision doubles.
for (PointId i = 0; i < v->size(); ++i)
{
using namespace Dimension;
ASSERT_FLOAT_EQ(v->getFieldAs<float>(Id::X, i),
v->getFieldAs<float>(foo, i));
ASSERT_FLOAT_EQ(v->getFieldAs<float>(Id::Y, i),
v->getFieldAs<float>(bar, i));
ASSERT_FLOAT_EQ(v->getFieldAs<float>(Id::Z, i),
v->getFieldAs<float>(baz, i));
}
}
// Merge a couple of 1.4 LAS files with point formats 1 and 6. Write the
// output with version 3. Verify that you get point format 3 (default),
// LAS 1.3 output and other header data forwarded.
TEST(LasWriterTest, forward)
{
Options readerOps1;
readerOps1.add("filename", Support::datapath("las/4_1.las"));
Options readerOps2;
readerOps2.add("filename", Support::datapath("las/4_6.las"));
LasReader r1;
r1.addOptions(readerOps1);
LasReader r2;
r2.addOptions(readerOps2);
StageFactory sf;
Stage *m = sf.createStage("filters.merge");
m->setInput(r1);
m->setInput(r2);
std::string testfile = Support::temppath("tmp.las");
FileUtils::deleteFile(testfile);
Options writerOps;
writerOps.add("forward", "header");
writerOps.add("minor_version", 3);
writerOps.add("filename", testfile);
LasWriter w;
w.setInput(*m);
w.addOptions(writerOps);
PointTable t;
w.prepare(t);
w.execute(t);
Options readerOps;
readerOps.add("filename", testfile);
LasReader r;
r.setOptions(readerOps);
PointTable t2;
r.prepare(t2);
r.execute(t2);
MetadataNode n1 = r.getMetadata();
EXPECT_EQ(n1.findChild("major_version").value<uint8_t>(), 1);
EXPECT_EQ(n1.findChild("minor_version").value<uint8_t>(), 3);
EXPECT_EQ(n1.findChild("dataformat_id").value<uint8_t>(), 3);
EXPECT_EQ(n1.findChild("filesource_id").value<uint8_t>(), 0);
// Global encoding doesn't match because 4_1.las has a bad value, so we
// get the default.
EXPECT_EQ(n1.findChild("global_encoding").value<uint16_t>(), 0);
EXPECT_EQ(n1.findChild("project_id").value<Uuid>(), Uuid());
EXPECT_EQ(n1.findChild("system_id").value(), "");
EXPECT_EQ(n1.findChild("software_id").value(), "TerraScan");
EXPECT_EQ(n1.findChild("creation_doy").value<uint16_t>(), 142);
EXPECT_EQ(n1.findChild("creation_year").value<uint16_t>(), 2014);
}
TEST(LasWriterTest, forwardvlr)
{
Options readerOps1;
readerOps1.add("filename", Support::datapath("las/lots_of_vlr.las"));
LasReader r1;
r1.addOptions(readerOps1);
std::string testfile = Support::temppath("tmp.las");
FileUtils::deleteFile(testfile);
Options writerOps;
writerOps.add("forward", "vlr");
writerOps.add("filename", testfile);
LasWriter w;
w.setInput(r1);
w.addOptions(writerOps);
PointTable t;
w.prepare(t);
w.execute(t);
Options readerOps;
readerOps.add("filename", testfile);
LasReader r;
r.setOptions(readerOps);
PointTable t2;
r.prepare(t2);
r.execute(t2);
MetadataNode forward = t2.privateMetadata("lasforward");
auto pred = [](MetadataNode temp)
{ return Utils::startsWith(temp.name(), "vlr_"); };
MetadataNodeList nodes = forward.findChildren(pred);
EXPECT_EQ(nodes.size(), 388UL);
}
// Test that data from three input views gets written to separate output files.
TEST(LasWriterTest, flex)
{
std::array<std::string, 3> outname =
{{ "test_1.las", "test_2.las", "test_3.las" }};
Options readerOps;
readerOps.add("filename", Support::datapath("las/simple.las"));
PointTable table;
LasReader reader;
reader.setOptions(readerOps);
reader.prepare(table);
PointViewSet views = reader.execute(table);
PointViewPtr v = *(views.begin());
PointViewPtr v1(new PointView(table));
PointViewPtr v2(new PointView(table));
PointViewPtr v3(new PointView(table));
std::vector<PointViewPtr> vs;
vs.push_back(v1);
vs.push_back(v2);
vs.push_back(v3);
for (PointId i = 0; i < v->size(); ++i)
vs[i % 3]->appendPoint(*v, i);
for (size_t i = 0; i < outname.size(); ++i)
FileUtils::deleteFile(Support::temppath(outname[i]));
BufferReader reader2;
reader2.addView(v1);
reader2.addView(v2);
reader2.addView(v3);
Options writerOps;
writerOps.add("filename", Support::temppath("test_#.las"));
LasWriter writer;
writer.setOptions(writerOps);
writer.setInput(reader2);
writer.prepare(table);
writer.execute(table);
for (size_t i = 0; i < outname.size(); ++i)
{
std::string filename = Support::temppath(outname[i]);
EXPECT_TRUE(FileUtils::fileExists(filename));
Options ops;
ops.add("filename", filename);
LasReader r;
r.setOptions(ops);
EXPECT_EQ(r.preview().m_pointCount, 355u);
}
}
// Test that data from three input views gets written to a single output file.
TEST(LasWriterTest, flex2)
{
Options readerOps;
readerOps.add("filename", Support::datapath("las/simple.las"));
PointTable table;
LasReader reader;
reader.setOptions(readerOps);
reader.prepare(table);
PointViewSet views = reader.execute(table);
PointViewPtr v = *(views.begin());
PointViewPtr v1(new PointView(table));
PointViewPtr v2(new PointView(table));
PointViewPtr v3(new PointView(table));
std::vector<PointViewPtr> vs;
vs.push_back(v1);
vs.push_back(v2);
vs.push_back(v3);
for (PointId i = 0; i < v->size(); ++i)
vs[i % 3]->appendPoint(*v, i);
std::string outfile(Support::temppath("test_flex.las"));
FileUtils::deleteFile(outfile);
BufferReader reader2;
reader2.addView(v1);
reader2.addView(v2);
reader2.addView(v3);
Options writerOps;
writerOps.add("filename", outfile);
LasWriter writer;
writer.setOptions(writerOps);
writer.setInput(reader2);
writer.prepare(table);
writer.execute(table);
EXPECT_TRUE(FileUtils::fileExists(outfile));
Options ops;
ops.add("filename", outfile);
LasReader r;
r.setOptions(ops);
EXPECT_EQ(r.preview().m_pointCount, 1065u);
}
#if defined(PDAL_HAVE_LAZPERF) && defined(PDAL_HAVE_LASZIP)
// LAZ files are normally written in chunks of 50,000, so a file of size
// 110,000 ensures we read some whole chunks and a partial.
TEST(LasWriterTest, lazperf)
{
Options readerOps;
readerOps.add("filename", Support::datapath("las/autzen_trim.las"));
LasReader lazReader;
lazReader.setOptions(readerOps);
std::string testfile(Support::temppath("temp.laz"));
FileUtils::deleteFile(testfile);
Options writerOps;
writerOps.add("filename", testfile);
writerOps.add("compression", "lazperf");
LasWriter lazWriter;
lazWriter.setOptions(writerOps);
lazWriter.setInput(lazReader);
PointTable t;
lazWriter.prepare(t);
lazWriter.execute(t);
// Now test the points were properly written. Use laszip.
Options ops1;
ops1.add("filename", testfile);
LasReader r1;
r1.setOptions(ops1);
PointTable t1;
r1.prepare(t1);
PointViewSet set1 = r1.execute(t1);
PointViewPtr view1 = *set1.begin();
Options ops2;
ops2.add("filename", Support::datapath("las/autzen_trim.las"));
LasReader r2;
r2.setOptions(ops2);
PointTable t2;
r2.prepare(t2);
PointViewSet set2 = r2.execute(t2);
PointViewPtr view2 = *set2.begin();
EXPECT_EQ(view1->size(), view2->size());
EXPECT_EQ(view1->size(), (point_count_t)110000);
DimTypeList dims = view1->dimTypes();
size_t pointSize = view1->pointSize();
EXPECT_EQ(view1->pointSize(), view2->pointSize());
// Validate some point data.
std::unique_ptr<char> buf1(new char[pointSize]);
std::unique_ptr<char> buf2(new char[pointSize]);
for (PointId i = 0; i < view1->pointSize(); i += 100)
{
view1->getPackedPoint(dims, i, buf1.get());
view2->getPackedPoint(dims, i, buf2.get());
EXPECT_EQ(memcmp(buf1.get(), buf2.get(), pointSize), 0);
}
}
#endif
#if defined(PDAL_HAVE_LASZIP)
// LAZ files are normally written in chunks of 50,000, so a file of size
// 110,000 ensures we read some whole chunks and a partial.
TEST(LasWriterTest, laszip)
{
Options readerOps;
readerOps.add("filename", Support::datapath("las/autzen_trim.las"));
LasReader lazReader;
lazReader.setOptions(readerOps);
std::string testfile(Support::temppath("temp.laz"));
FileUtils::deleteFile(testfile);
Options writerOps;
writerOps.add("filename", testfile);
LasWriter lazWriter;
lazWriter.setOptions(writerOps);
lazWriter.setInput(lazReader);
PointTable t;
lazWriter.prepare(t);
lazWriter.execute(t);
// Now test the points were properly written. Use laszip.
Options ops1;
ops1.add("filename", testfile);
LasReader r1;
r1.setOptions(ops1);
PointTable t1;
r1.prepare(t1);
PointViewSet set1 = r1.execute(t1);
PointViewPtr view1 = *set1.begin();
Options ops2;
ops2.add("filename", Support::datapath("las/autzen_trim.las"));
LasReader r2;
r2.setOptions(ops2);
PointTable t2;
r2.prepare(t2);
PointViewSet set2 = r2.execute(t2);
PointViewPtr view2 = *set2.begin();
EXPECT_EQ(view1->size(), view2->size());
EXPECT_EQ(view1->size(), (point_count_t)110000);
DimTypeList dims = view1->dimTypes();
size_t pointSize = view1->pointSize();
EXPECT_EQ(view1->pointSize(), view2->pointSize());
// Validate some point data.
std::unique_ptr<char> buf1(new char[pointSize]);
std::unique_ptr<char> buf2(new char[pointSize]);
for (PointId i = 0; i < view1->size(); i += 100)
{
view1->getPackedPoint(dims, i, buf1.get());
view2->getPackedPoint(dims, i, buf2.get());
EXPECT_EQ(memcmp(buf1.get(), buf2.get(), pointSize), 0);
}
}
// This is the same test as the above, but for a 1.4-specific point format.
// LAZ files are normally written in chunks of 50,000, so a file of size
// 110,000 ensures we read some whole chunks and a partial.
TEST(LasWriterTest, laszip1_4)
{
Options readerOps;
std::string baseFilename = Support::datapath("las/autzen_trim_7.las");
readerOps.add("filename", baseFilename);
LasReader lazReader;
lazReader.setOptions(readerOps);
std::string testfile(Support::temppath("temp.laz"));
FileUtils::deleteFile(testfile);
Options writerOps;
writerOps.add("filename", testfile);
writerOps.add("dataformat_id", 7);
writerOps.add("minor_version", 4);
LasWriter lazWriter;
lazWriter.setOptions(writerOps);
lazWriter.setInput(lazReader);
PointTable t;
lazWriter.prepare(t);
lazWriter.execute(t);
// Now test the points were properly written. Use laszip.
Options ops1;
ops1.add("filename", testfile);
LasReader r1;
r1.setOptions(ops1);
PointTable t1;
r1.prepare(t1);
PointViewSet set1 = r1.execute(t1);
PointViewPtr view1 = *set1.begin();
Options ops2;
ops2.add("filename", baseFilename);
LasReader r2;
r2.setOptions(ops2);
PointTable t2;
r2.prepare(t2);
PointViewSet set2 = r2.execute(t2);
PointViewPtr view2 = *set2.begin();
EXPECT_EQ(view1->size(), view2->size());
EXPECT_EQ(view1->size(), (point_count_t)110000);
DimTypeList dims = view1->dimTypes();
size_t pointSize = view1->pointSize();
EXPECT_EQ(view1->pointSize(), view2->pointSize());
// Validate some point data.
std::unique_ptr<char> buf1(new char[pointSize]);
std::unique_ptr<char> buf2(new char[pointSize]);
for (PointId idx = 0; idx < view1->size(); idx++)
{
view1->getPackedPoint(dims, idx, buf1.get());
view2->getPackedPoint(dims, idx, buf2.get());
char *b1 = buf1.get();
char *b2 = buf2.get();
// Uncomment this to figure out the exact byte at which things are
// broken.
/**
for (size_t i = 0; i < pointSize; ++i)
{
if (*b1++ != *b2++)
{
{
size_t s = 0;
for (auto di = dims.begin(); di != dims.end(); ++di)
{
std::cerr << "Dim " << view1->dimName(di->m_id) <<
" at " << s << "!\n";
s += Dimension::size(di->m_type);
}
}
throw pdal_error("Mismatch at byte = " + to_string(i) + "!");
}
}
**/
EXPECT_EQ(memcmp(buf1.get(), buf2.get(), pointSize), 0);
}
}
TEST(LasWriterTest, flex_vlr)
{
std::array<std::string, 3> outname =
{{ "test_1.laz", "test_2.laz", "test_3.laz" }};
Options readerOps;
readerOps.add("filename", Support::datapath("las/simple.las"));
PointTable table;
LasReader reader;
reader.setOptions(readerOps);
reader.prepare(table);
PointViewSet views = reader.execute(table);
PointViewPtr v = *(views.begin());
PointViewPtr v1(new PointView(table));
PointViewPtr v2(new PointView(table));
PointViewPtr v3(new PointView(table));
std::vector<PointViewPtr> vs;
vs.push_back(v1);
vs.push_back(v2);
vs.push_back(v3);
for (PointId i = 0; i < v->size(); ++i)
vs[i % 3]->appendPoint(*v, i);
for (size_t i = 0; i < outname.size(); ++i)
FileUtils::deleteFile(Support::temppath(outname[i]));
BufferReader reader2;
reader2.addView(v1);
reader2.addView(v2);
reader2.addView(v3);
Options writerOps;
writerOps.add("filename", Support::temppath("test_#.laz"));
writerOps.add("pdal_metadata", true);
LasWriter writer;
writer.setOptions(writerOps);
writer.setInput(reader2);
writer.prepare(table);
writer.execute(table);
// Make sure that the files have the same three VLRs.
for (size_t i = 0; i < outname.size(); ++i)
{
std::string filename = Support::temppath(outname[i]);
EXPECT_TRUE(FileUtils::fileExists(filename));
Options ops;
ops.add("filename", filename);
LasReader r;
r.setOptions(ops);
PointTable t;
r.prepare(t);
r.execute(t);
const VlrList& vlrs = r.header().vlrs();
EXPECT_EQ(vlrs.size(), 3U);
EXPECT_NE(r.header().findVlr("laszip encoded", 22204), nullptr);
EXPECT_NE(r.header().findVlr("PDAL", 12), nullptr);
EXPECT_NE(r.header().findVlr("PDAL", 13), nullptr);
}
}
#endif // PDAL_HAVE_LASZIP
void compareFiles(const std::string& name1, const std::string& name2,
size_t increment = 100)
{
Options o1;
o1.add("filename", name1);
Options o2;
o2.add("filename", name2);
LasReader r1;
r1.setOptions(o1);
LasReader r2;
r2.setOptions(o2);
PointTable t1;
r1.prepare(t1);
PointViewSet s1 = r1.execute(t1);
EXPECT_EQ(s1.size(), 1u);
PointViewPtr v1 = *s1.begin();
DimTypeList d1 = v1->dimTypes();
size_t size1 = v1->pointSize();
std::vector<char> buf1(size1);
PointTable t2;
r2.prepare(t2);
PointViewSet s2 = r2.execute(t2);
EXPECT_EQ(s2.size(), 1u);
PointViewPtr v2 = *s2.begin();
DimTypeList d2 = v2->dimTypes();
size_t size2 = v2->pointSize();
std::vector<char> buf2(size2);
EXPECT_EQ(v1->size(), v2->size());
EXPECT_EQ(d1.size(), d2.size());
EXPECT_EQ(size1, size2);
for (PointId i = 0; i < (std::min)(size1, size2); i += increment)
{
v1->getPackedPoint(d1, i, buf1.data());