mirror of
https://github.com/OPM/ResInsight.git
synced 2025-01-21 22:13:25 -06:00
138 lines
5.0 KiB
C++
138 lines
5.0 KiB
C++
//##################################################################################################
|
|
//
|
|
// Custom Visualization Core library
|
|
// Copyright (C) 2011-2013 Ceetron AS
|
|
//
|
|
// This library may be used under the terms of either the GNU General Public License or
|
|
// the GNU Lesser General Public License as follows:
|
|
//
|
|
// GNU General Public License Usage
|
|
// This library 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 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This library 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 at <<http://www.gnu.org/licenses/gpl.html>>
|
|
// for more details.
|
|
//
|
|
// GNU Lesser General Public License Usage
|
|
// This library is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation; either version 2.1 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This library 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 Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
|
|
// for more details.
|
|
//
|
|
//##################################################################################################
|
|
|
|
|
|
#include "cvfBase.h"
|
|
#include "cvfVertexCompactor.h"
|
|
#include "cvfGeometryUtils.h"
|
|
|
|
namespace cvf {
|
|
|
|
|
|
//==================================================================================================
|
|
///
|
|
/// \class cvf::VertexCompactor
|
|
/// \ingroup Geometry
|
|
///
|
|
/// Worker class for creating compact indices based on a "global" index array
|
|
///
|
|
//==================================================================================================
|
|
|
|
//--------------------------------------------------------------------------------------------------
|
|
///
|
|
//--------------------------------------------------------------------------------------------------
|
|
VertexCompactor::VertexCompactor(const UIntValueArray& origIndices, const Vec3fValueArray& origVertexArray)
|
|
: m_origIndices(origIndices),
|
|
m_origVertexArray(origVertexArray)
|
|
{
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------------------------------
|
|
///
|
|
//--------------------------------------------------------------------------------------------------
|
|
void VertexCompactor::computeCompactedIndices()
|
|
{
|
|
m_newIndices = new UIntArray;
|
|
m_newToOldVertexIndexMapping = new UIntArray;
|
|
uint maxNumResultingVertices = static_cast<uint>(m_origVertexArray.size());
|
|
GeometryUtils::removeUnusedVertices(m_origIndices, m_newIndices.p(), m_newToOldVertexIndexMapping.p(), maxNumResultingVertices);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------------------------------
|
|
/// Get indices into new vertex array
|
|
///
|
|
/// \return Newly allocated array with the new indices. An array is always returned, but may have zero entries.
|
|
//--------------------------------------------------------------------------------------------------
|
|
ref<UIntArray> VertexCompactor::indices()
|
|
{
|
|
if (m_newIndices.isNull())
|
|
{
|
|
computeCompactedIndices();
|
|
}
|
|
|
|
CVF_ASSERT(m_newIndices.notNull());
|
|
return m_newIndices;
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------------------------------
|
|
///
|
|
//--------------------------------------------------------------------------------------------------
|
|
ref<Vec3fArray> VertexCompactor::vertexArray()
|
|
{
|
|
if (m_newIndices.isNull())
|
|
{
|
|
computeCompactedIndices();
|
|
}
|
|
|
|
CVF_ASSERT(m_newToOldVertexIndexMapping.notNull());
|
|
ref<Vec3fArray> vertices = new Vec3fArray;
|
|
size_t numNewVertices = m_newToOldVertexIndexMapping->size();
|
|
if (numNewVertices > 0)
|
|
{
|
|
vertices->reserve(numNewVertices);
|
|
size_t i;
|
|
for (i = 0; i < numNewVertices; i++)
|
|
{
|
|
vertices->add(m_origVertexArray.val(m_newToOldVertexIndexMapping->get(i)));
|
|
}
|
|
}
|
|
|
|
return vertices;
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------------------------------
|
|
/// Get array of original indices per new vertex.
|
|
///
|
|
/// The returned array will be the same size as the array of vertices returned by vertexArray().
|
|
/// The indices are the original/source indices of the vertices
|
|
//--------------------------------------------------------------------------------------------------
|
|
ref<UIntArray> VertexCompactor::perVertexOriginalIndices()
|
|
{
|
|
if (m_newToOldVertexIndexMapping.isNull())
|
|
{
|
|
computeCompactedIndices();
|
|
}
|
|
|
|
CVF_ASSERT(m_newToOldVertexIndexMapping.notNull());
|
|
return m_newToOldVertexIndexMapping;
|
|
}
|
|
|
|
} // namespace cvf
|