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Sync changes from upstream repository

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Co-authored-by: Bozo <bozo@mcneel.com>
Co-authored-by: croudyj <croudyj@gmail.com>
Co-authored-by: Dale Fugier <dale@mcneel.com>
Co-authored-by: Dale Lear <dalelear@mcneel.com>
This commit is contained in:
Bozo the Builder
2023-08-22 12:36:38 -07:00
parent 5ee7403b8a
commit 03201a727f
10 changed files with 885 additions and 338 deletions
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81
opennurbs_pointcloud.cpp
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@@ -680,3 +680,84 @@ ON_PointCloud* ON_PointCloud::RandomSubsample(
return destination_point_cloud;
}
int ON_PointCloud::RemoveRange(const ON_SimpleArray<int>& indices)
{
return RemoveRange(indices.Count(), indices.Array());
}
int ON_PointCloud::RemoveRange(int count, const int* pIndices)
{
const unsigned int point_count = m_P.UnsignedCount();
if (0 == point_count || count <= 0 || nullptr == pIndices)
return 0;
ON_SimpleArray<int> indices(count);
indices.Append(count, pIndices);
indices.QuickSortAndRemoveDuplicates(ON_CompareDecreasing<int>);
const unsigned int index_count = indices.Count();
if (index_count <= 0)
return 0;
const bool bHaveNormals = point_count == m_N.UnsignedCount();
const bool bHaveColors = point_count == m_C.UnsignedCount();
const bool bHaveValues = point_count == m_V.UnsignedCount();
const bool bHaveHidden = point_count == m_H.UnsignedCount();
unsigned int points_removed = 0;
unsigned int last_point_count = point_count;
for (unsigned int i = 0; i < index_count; i++)
{
const unsigned int point_index = indices[i];
if (point_index >= 0 && point_index < point_count)
{
m_P.Swap(point_index, last_point_count - 1);
if (bHaveNormals)
m_N.Swap(point_index, last_point_count - 1);
if (bHaveColors)
m_C.Swap(point_index, last_point_count - 1);
if (bHaveValues)
m_V.Swap(point_index, last_point_count - 1);
if (bHaveHidden)
m_H.Swap(point_index, last_point_count - 1);
points_removed++;
last_point_count--;
if (last_point_count <= 0)
break;
}
}
m_P.SetCount(last_point_count);
m_P.Shrink();
if (bHaveNormals)
{
m_N.SetCount(last_point_count);
m_N.Shrink();
}
if (bHaveColors)
{
m_C.SetCount(last_point_count);
m_C.Shrink();
}
if (bHaveValues)
{
m_V.SetCount(last_point_count);
m_V.Shrink();
}
if (bHaveHidden)
{
m_H.SetCount(last_point_count);
m_H.Shrink();
m_hidden_count = 0;
for (unsigned int i = 0; i < m_H.UnsignedCount(); i++)
{
if (m_H[i])
m_hidden_count++;
}
InvalidateBoundingBox();
}
return points_removed;
}