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RialtoWriter.cpp
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RialtoWriter.cpp
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/******************************************************************************
* Copyright (c) 2015, RadiantBlue Technologies, Inc.
*
* 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 "RialtoWriter.hpp"
#include <pdal/BufferReader.hpp>
#include <pdal/Dimension.hpp>
#include <pdal/Options.hpp>
#include <pdal/pdal_error.hpp>
#include <pdal/pdal_types.hpp>
#include <pdal/PointTable.hpp>
#include <pdal/PointView.hpp>
#include <pdal/util/Bounds.hpp>
#include <pdal/util/FileUtils.hpp>
#include <cstdint>
namespace pdal
{
namespace
{
static void fillBufferWithPoint(const PointView* view, const PointId& idx, unsigned char* buf)
{
unsigned char* p = buf;
unsigned char* q = p;
for (const auto& dim : view->dims())
{
view->getRawField(dim, idx, q);
q += view->dimSize(dim);
}
}
static void fillBufferWithPointView(const PointView* view, unsigned char* buf)
{
for (size_t i=0; i<view->size(); ++i)
{
const PointId idx = i;
fillBufferWithPoint(view, idx, buf);
}
}
} // anonymous namespace
// caller responisble for deleting the buffer
unsigned char* RialtoWriter::createBlob(PointView* view, size_t& buflen)
{
const uint32_t pointSize = view->pointSize();
const uint32_t numPoints = view->size();
buflen = pointSize * numPoints;
unsigned char* buf = new unsigned char[buflen];
fillBufferWithPointView(view, buf);
return buf;
}
void RialtoWriter::extractStatistics(MetadataNode& tileSetNode, const std::string& dimName,
double& minimum, double& mean, double& maximum)
{
MetadataNode statisticNodes = tileSetNode.findChild("statistics");
assert(statisticNodes.valid());
MetadataNode dimNode = statisticNodes.findChild(dimName);
if (!dimNode.valid())
{
std::ostringstream oss;
oss << "RialtoWriter: statistics not found for dimension: " << dimName;
throw pdal_error(oss.str());
}
minimum = getMetadataF64(dimNode, "minimum");
mean = getMetadataF64(dimNode, "mean");
maximum = getMetadataF64(dimNode, "maximum");
}
uint32_t RialtoWriter::getMetadataU32(const MetadataNode& parent, const std::string& name)
{
const MetadataNode node = parent.findChild(name);
if (!node.valid()) {
std::ostringstream oss;
oss << "RialtoWriter: required metadata item not found: " << name;
throw pdal_error(oss.str());
}
uint32_t v = boost::lexical_cast<uint32_t>(node.value());
return v;
}
double RialtoWriter::getMetadataF64(const MetadataNode& parent, const std::string& name)
{
const MetadataNode node = parent.findChild(name);
if (!node.valid()) {
std::ostringstream oss;
oss << "RialtoWriter: required metadata item not found: " << name;
throw pdal_error(oss.str());
}
double v = boost::lexical_cast<double>(node.value());
return v;
}
void RialtoWriter::ready(PointTableRef table)
{
log()->get(LogLevel::Debug) << "RialtoWriter::ready()" << std::endl;
m_table = &table;
localStart();
MetadataNode tileSetNode = m_table->metadata().findChild("filters.tiler");
if (!tileSetNode.valid()) {
throw pdal_error("RialtoWriter: \"filters.tiler\" metadata not found");
}
writeHeader(tileSetNode, m_table->layout());
makePointViewMap(tileSetNode);
}
// write out the tile with this pointview
void RialtoWriter::write(const PointViewPtr viewPtr)
{
log()->get(LogLevel::Debug1) << "RialtoWriter::write()" << std::endl;
MetadataNode tileNode = m_pointViewMap[viewPtr->id()];
assert(tileNode.valid());
PointView* view = viewPtr.get();
writeTile(tileNode, view);
}
// write out all the remaining tiles: those without point views
void RialtoWriter::done(PointTableRef table)
{
writeEmptyTiles();
localFinish();
}
void RialtoWriter::makePointViewMap(MetadataNode tileSetNode)
{
// the metadata nodes are listed by tile id, not by point view id,
// so we need make to make a map from point view id to metadata node
const MetadataNode tilesNode = tileSetNode.findChild("tiles");
if (!tilesNode.valid()) {
throw pdal_error("RialtoWriter: \"filters.tiler/tiles\" metadata not found");
}
const MetadataNodeList tileNodes = tilesNode.children();
for (auto node: tileNodes)
{
MetadataNode n = node.findChild("pointView");
if (n.valid()) {
const uint32_t viewId = boost::lexical_cast<uint32_t>(n.value());
m_pointViewMap[viewId] = node;
}
}
}
void RialtoWriter::writeEmptyTiles()
{
const MetadataNode tileSetNode = m_table->metadata().findChild("filters.tiler");
const MetadataNode tilesNode = tileSetNode.findChild("tiles");
const MetadataNodeList tileNodes = tilesNode.children();
for (auto iter = tileNodes.begin(); iter != tileNodes.end(); ++iter)
{
MetadataNode tileNode = *iter;
const MetadataNode nodeP = tileNode.findChild("pointView");
if (!nodeP.valid()) {
writeTile(tileNode, NULL);
}
}
}
} // namespace pdal