Examples with LasPoint com.revolsys.elevation.cloud.las.pointformat.LasPoint used on opensource projects

Example 1 with LasPoint

use of com.revolsys.elevation.cloud.las.pointformat.LasPoint in project com.revolsys.open by revolsys.

the class LazDecompressPoint10V2 method init.

@Override
public void init(final LasPoint point) {
    super.init(point);
    for (int i = 0; i < 16; i++) {
        this.lastXDiffMedian5[i].init();
        this.lastYDiffMedian5[i].init();
        this.lastIntensity[i] = 0;
        this.last_height[i / 2] = 0;
    }
    ArithmeticModel.initSymbolModel(this.decompressScanAngleRankFalse);
    ArithmeticModel.initSymbolModel(this.decompressScanAngleRankTrue);
    this.intensity = 0;
}

Example 2 with LasPoint

use of com.revolsys.elevation.cloud.las.pointformat.LasPoint in project com.revolsys.open by revolsys.

the class LazDecompressRgb12V1 method read.

@Override
public void read(final LasPoint point) {
    final int sym = this.decoder.decodeSymbol(this.byteUsed);
    this.red = decompress(this.red, (sym & 1) != 0, (sym & 1 << 1) != 0);
    this.green = decompress(this.green, (sym & 1 << 2) != 0, (sym & 1 << 3) != 0);
    this.blue = decompress(this.blue, (sym & 1 << 4) != 0, (sym & 1 << 5) != 0);
    super.read(point);
}

Example 3 with LasPoint

use of com.revolsys.elevation.cloud.las.pointformat.LasPoint in project com.revolsys.open by revolsys.

the class LasPointCloud method forEachPointLazChunked.

private void forEachPointLazChunked(final ArithmeticDecoder decoder, final LazDecompress[] pointDecompressors, final Consumer<? super LasPoint> action) {
    final ChannelReader reader = this.reader;
    final long chunkTableOffset = reader.getLong();
    final long chunkSize = getLasZipHeader().getChunkSize();
    long chunkReadCount = chunkSize;
    final long pointCount = getPointCount();
    for (int i = 0; i < pointCount; i++) {
        final LasPoint point;
        final LasPointFormat pointFormat = getPointFormat();
        if (chunkSize == chunkReadCount) {
            point = pointFormat.readLasPoint(this, reader);
            for (final LazDecompress pointDecompressor : pointDecompressors) {
                pointDecompressor.init(point);
            }
            decoder.reset();
            chunkReadCount = 0;
        } else {
            point = pointFormat.newLasPoint(this);
            for (final LazDecompress pointDecompressor : pointDecompressors) {
                pointDecompressor.read(point);
            }
        }
        action.accept(point);
        chunkReadCount++;
    }
}

Example 4 with LasPoint

use of com.revolsys.elevation.cloud.las.pointformat.LasPoint in project com.revolsys.open by revolsys.

the class LasPointCloud method forEachPointLazPointwise.

private void forEachPointLazPointwise(final ArithmeticDecoder decoder, final LazDecompress[] pointDecompressors, final Consumer<? super LasPoint> action) {
    final LasPointFormat pointFormat = getPointFormat();
    {
        final ChannelReader reader = this.reader;
        final LasPoint point = pointFormat.readLasPoint(this, reader);
        for (final LazDecompress pointDecompressor : pointDecompressors) {
            pointDecompressor.init(point);
        }
        decoder.reset();
        action.accept(point);
    }
    final long pointCount = getPointCount();
    for (int i = 1; i < pointCount; i++) {
        final LasPoint point = pointFormat.newLasPoint(this);
        for (final LazDecompress pointDecompressor : pointDecompressors) {
            pointDecompressor.read(point);
        }
        action.accept(point);
    }
}

Example 5 with LasPoint

use of com.revolsys.elevation.cloud.las.pointformat.LasPoint in project com.revolsys.open by revolsys.

the class LazDecompressGpsTime11V2 method read.

@Override
public void read(final LasPoint point) {
    int multi;
    final int[] lastGpsTimeDiff = this.lastGpsTimeDiff;
    final int lastDiff = lastGpsTimeDiff[this.last];
    final ArithmeticDecoder decoder = this.decoder;
    final long[] lastGpsTime = this.lastGpsTime;
    final int[] multiExtremeCounter = this.multiExtremeCounter;
    int last = this.last;
    int next = this.next;
    final IntegerCompressor decompressGpsTime = this.decompressGpsTime;
    if (lastDiff == 0) {
        // if the last integer difference was zero
        multi = decoder.decodeSymbol(this.gpsTime0Diff);
        if (multi == 1) {
            // the difference can be represented with 32 bits
            final int gpsTimeDiff = decompressGpsTime.decompress(0, 0);
            lastGpsTimeDiff[last] = gpsTimeDiff;
            lastGpsTime[last] += gpsTimeDiff;
            multiExtremeCounter[last] = 0;
        } else if (multi == 2) {
            // the difference is huge
            long gpsTime = decompressGpsTime.decompress((int) (lastGpsTime[last] >>> 32), 8);
            gpsTime <<= 32;
            gpsTime |= Integer.toUnsignedLong(decoder.getInt());
            next = this.next + 1;
            next &= 3;
            this.next = next;
            lastGpsTime[next] = gpsTime;
            last = next;
            this.last = next;
            lastGpsTimeDiff[last] = 0;
            multiExtremeCounter[last] = 0;
        } else if (multi > 2) {
            // we switch to another sequence
            last = last + multi - 2;
            this.last = last & 3;
            read(point);
        }
    } else {
        multi = decoder.decodeSymbol(this.gpsTimeMulti);
        if (multi == 1) {
            final int gpsTimeDiff = lastGpsTimeDiff[last];
            lastGpsTime[last] += decompressGpsTime.decompress(gpsTimeDiff, 1);
            multiExtremeCounter[last] = 0;
        } else if (multi < LASZIP_GPSTIME_MULTI_UNCHANGED) {
            int gpsTimeDiff;
            if (multi == 0) {
                gpsTimeDiff = decompressGpsTime.decompress(0, 7);
                multiExtremeCounter[last]++;
                if (multiExtremeCounter[last] > 3) {
                    lastGpsTimeDiff[last] = gpsTimeDiff;
                    multiExtremeCounter[last] = 0;
                }
            } else if (multi < LASZIP_GPSTIME_MULTI) {
                gpsTimeDiff = lastGpsTimeDiff[last];
                if (multi < 10) {
                    gpsTimeDiff = decompressGpsTime.decompress(multi * gpsTimeDiff, 2);
                } else {
                    gpsTimeDiff = decompressGpsTime.decompress(multi * gpsTimeDiff, 3);
                }
            } else if (multi == LASZIP_GPSTIME_MULTI) {
                gpsTimeDiff = lastGpsTimeDiff[last];
                gpsTimeDiff = decompressGpsTime.decompress(LASZIP_GPSTIME_MULTI * gpsTimeDiff, 4);
                multiExtremeCounter[last]++;
                if (multiExtremeCounter[last] > 3) {
                    lastGpsTimeDiff[last] = gpsTimeDiff;
                    multiExtremeCounter[last] = 0;
                }
            } else {
                gpsTimeDiff = lastGpsTimeDiff[last];
                multi = LASZIP_GPSTIME_MULTI - multi;
                if (multi > LASZIP_GPSTIME_MULTI_MINUS) {
                    gpsTimeDiff = decompressGpsTime.decompress(multi * gpsTimeDiff, 5);
                } else {
                    gpsTimeDiff = decompressGpsTime.decompress(LASZIP_GPSTIME_MULTI_MINUS * gpsTimeDiff, 6);
                    multiExtremeCounter[last]++;
                    if (multiExtremeCounter[last] > 3) {
                        lastGpsTimeDiff[last] = gpsTimeDiff;
                        multiExtremeCounter[last] = 0;
                    }
                }
            }
            lastGpsTime[last] += gpsTimeDiff;
        } else if (multi == LASZIP_GPSTIME_MULTI_CODE_FULL) {
            next += 1;
            next &= 3;
            this.next = next;
            long gpsTime = lastGpsTime[last];
            gpsTime >>= 32;
            gpsTime = decompressGpsTime.decompress((int) gpsTime, 8);
            gpsTime <<= 32;
            gpsTime |= Integer.toUnsignedLong(decoder.getInt());
            lastGpsTime[next] = gpsTime;
            last = next;
            this.last = last;
            lastGpsTimeDiff[last] = 0;
            multiExtremeCounter[last] = 0;
        } else if (multi >= LASZIP_GPSTIME_MULTI_CODE_FULL) {
            last += multi - LASZIP_GPSTIME_MULTI_CODE_FULL;
            this.last = last & 3;
            read(point);
            return;
        }
    }
    point.setGpsTime(Double.longBitsToDouble(lastGpsTime[this.last]));
}