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//##########################################################################
//# #
//# CLOUDCOMPARE PLUGIN: q3DMASC #
//# #
//# 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; version 2 or later of the License. #
//# #
//# 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. #
//# #
//# COPYRIGHT: Dimitri Lague / CNRS / UEB #
//# #
//##########################################################################
#include "CorePoints.h"
//qCC_db
#include <ccPointCloud.h>
//CCLib
#include <CloudSamplingTools.h>
//system
#include <assert.h>
using namespace masc;
bool CorePoints::prepare(CCCoreLib::GenericProgressCallback* progressCb/*=nullptr*/)
{
if (!origin)
{
assert(false);
return false;
}
if (selection)
{
//nothing to do
return true;
}
//now we can compute the subsampled version
CCCoreLib::ReferenceCloud* ref = nullptr;
switch (selectionMethod)
{
case SPATIAL:
{
//we'll need an octree
if (!origin->getOctree())
{
if (!origin->computeOctree(progressCb))
{
ccLog::Warning("[CorePoints::prepare] Failed to compute the octree");
return false;
}
}
CCCoreLib::CloudSamplingTools::SFModulationParams modParams;
modParams.enabled = false;
ref = CCCoreLib::CloudSamplingTools::resampleCloudSpatially(
origin,
static_cast<PointCoordinateType>(selectionParam),
modParams,
origin->getOctree().data(),
progressCb);
break;
}
case RANDOM:
{
if (selectionParam <= 0.0 || selectionParam >= 1.0)
{
ccLog::Warning("[CorePoints::prepare] Random subsampling ration must be between 0 and 1 (excluded)");
return false;
}
int targetCount = static_cast<int>(origin->size() * selectionParam);
ref = CCCoreLib::CloudSamplingTools::subsampleCloudRandomly(origin, targetCount, progressCb);
break;
}
case NONE:
//nothing to do
cloud = origin;
return true;
default:
assert(false);
break;
}
//store the references
if (!ref)
{
ccLog::Warning("[CorePoints::prepare] Failed to subsampled the origin cloud");
return false;
}
selection.reset(ref);
//and create the subsampled version of the cloud
cloud = origin->partialClone(ref);
if (!cloud)
{
ccLog::Warning("[CorePoints::prepare] Failed to subsampled the origin cloud (not enough memory)");
return false;
}
return true;
}
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