| 84 | |
| 85 | |
| 86 | uint8_t *DimInfo::getValue(pdal::point_count_t pointIndex) { |
| 87 | if(pointIndex < chunkLowerBound || pointIndex >= chunkUpperBound) { |
| 88 | // load new chunk |
| 89 | H5::DataSpace dspace = m_dset.getSpace(); |
| 90 | |
| 91 | chunkLowerBound = (pointIndex / m_chunkSize) * m_chunkSize; |
| 92 | chunkUpperBound = |
| 93 | (std::min)(chunkLowerBound + m_chunkSize, m_numPoints); |
| 94 | |
| 95 | hsize_t selectionSize = chunkUpperBound - chunkLowerBound; |
| 96 | |
| 97 | H5::DataSpace memspace(1, &selectionSize); |
| 98 | dspace.selectHyperslab(H5S_SELECT_SET, &selectionSize, &chunkLowerBound); |
| 99 | m_dset.read(m_buffer.data(), |
| 100 | m_dset.getDataType(), |
| 101 | memspace, |
| 102 | dspace ); |
| 103 | |
| 104 | } |
| 105 | hsize_t pointOffsetWithinChunk = pointIndex - chunkLowerBound; |
| 106 | return m_buffer.data() + pointOffsetWithinChunk * m_size; |
| 107 | } |
| 108 | |
| 109 | |
| 110 | hsize_t Handler::getNumPoints() const |