ucar.ma2.Array.section()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中ucar.ma2.Array.section()方法的一些代码示例，展示了Array.section()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Array.section()方法的具体详情如下：
包路径：ucar.ma2.Array
类名称：Array
方法名：section

Array.section介绍

[英]Create a new Array as a subsection of this Array, with rank reduction. No data is moved, so the new Array references the same backing store as the original.
[中]创建一个新数组作为该数组的一个子数组，并降低秩。不移动任何数据，因此新阵列引用与原始阵列相同的备份存储。

代码示例

代码示例来源：origin: edu.ucar/cdm

/**
 * Create a new Array as a subsection of this Array, with rank reduction.
 * No data is moved, so the new Array references the same backing store as the original.
 * <p/>
 *
 * @param origin int array specifying the starting index. Must be same rank as original Array.
 * @param shape  int array specifying the extents in each dimension.
 *               This becomes the shape of the returned Array. Must be same rank as original Array.
 *               If shape[dim] == 1, then the rank of the resulting Array is reduced at that dimension.
 * @return the new Array
 * @throws InvalidRangeException if ranges is invalid
 */
public Array section(int[] origin, int[] shape) throws InvalidRangeException {
 return section(origin, shape, null);
}

代码示例来源：origin: edu.ucar/netcdf

/**
 * Create a new Array as a subsection of this Array, with rank reduction.
 * No data is moved, so the new Array references the same backing store as the original.
 * <p/>
 *
 * @param origin int array specifying the starting index. Must be same rank as original Array.
 * @param shape  int array specifying the extents in each dimension.
 *               This becomes the shape of the returned Array. Must be same rank as original Array.
 *               If shape[dim] == 1, then the rank of the resulting Array is reduced at that dimension.
 * @return the new Array
 * @throws InvalidRangeException if ranges is invalid
 */
public Array section(int[] origin, int[] shape) throws InvalidRangeException {
 return section(origin, shape, null);
}

代码示例来源：origin: Unidata/thredds

/**
 * Create a new Array as a subsection of this Array, with rank reduction.
 * No data is moved, so the new Array references the same backing store as the original.
 * <p/>
 *
 * @param origin int array specifying the starting index. Must be same rank as original Array.
 * @param shape  int array specifying the extents in each dimension.
 *               This becomes the shape of the returned Array. Must be same rank as original Array.
 *               If shape[dim] == 1, then the rank of the resulting Array is reduced at that dimension.
 * @return the new Array
 * @throws InvalidRangeException if ranges is invalid
 */
public Array section(int[] origin, int[] shape) throws InvalidRangeException {
 return section(origin, shape, null);
}

代码示例来源：origin: edu.ucar/cdm

/**
 * Get an index iterator for traversing a section of the array in canonical order.
 * This is equivalent to Array.section(ranges).getIterator();
 *
 * @param ranges list of Ranges that specify the array subset.
 *               Must be same rank as original Array.
 *               A particular Range: 1) may be a subset, or 2) may be null, meaning use entire Range.
 * @return an IndexIterator over the named range.
 * @throws InvalidRangeException if ranges is invalid
 */
public IndexIterator getRangeIterator(List<Range> ranges) throws InvalidRangeException {
 return section(ranges).getIndexIterator();
}

代码示例来源：origin: edu.ucar/netcdf

/**
 * Get an index iterator for traversing a section of the array in canonical order.
 * This is equivalent to Array.section(ranges).getIterator();
 *
 * @param ranges list of Ranges that specify the array subset.
 *               Must be same rank as original Array.
 *               A particular Range: 1) may be a subset, or 2) may be null, meaning use entire Range.
 * @return an IndexIterator over the named range.
 * @throws InvalidRangeException if ranges is invalid
 */
public IndexIterator getRangeIterator(List<Range> ranges) throws InvalidRangeException {
 return section(ranges).getIndexIterator();
}

代码示例来源：origin: Unidata/thredds

/**
 * Get an index iterator for traversing a section of the array in canonical order.
 * This is equivalent to Array.section(ranges).getIterator();
 *
 * @param ranges list of Ranges that specify the array subset.
 *               Must be same rank as original Array.
 *               A particular Range: 1) may be a subset, or 2) may be null, meaning use entire Range.
 * @return an IndexIterator over the named range.
 * @throws InvalidRangeException if ranges is invalid
 */
public IndexIterator getRangeIterator(List<Range> ranges) throws InvalidRangeException {
 return section(ranges).getIndexIterator();
}

代码示例来源：origin: Unidata/thredds

public float[] getAzi(String aziName, int swpNumber) throws IOException {
  try {
    Array aziData = ds.findVariable(aziName).read();
    int [] aziOrigin = new int[2];
    aziOrigin[0] = swpNumber;
    aziOrigin[1] = 0;  //shape[1] - getRadialNumber();
    int [] aziShape = {1, getRadialNumber()};
    aziData = aziData.section(aziOrigin, aziShape);
    return (float [])aziData.get1DJavaArray(Float.TYPE);
  } catch (ucar.ma2.InvalidRangeException e) {
    throw new IOException(e);
  }
}

代码示例来源：origin: edu.ucar/cdm

public float[] getEle(String elevName, int swpNumber) throws IOException {
  try {
    Array eleData = ds.findVariable(elevName).read();
    int [] eleOrigin = new int[2];
    eleOrigin[0] = swpNumber;
    eleOrigin[1] = 0;
    int [] eleShape = {1, getRadialNumber()};
    eleData = eleData.section(eleOrigin, eleShape);
    return (float [])eleData.get1DJavaArray(Float.TYPE);
  } catch (ucar.ma2.InvalidRangeException e) {
    throw new IOException(e);
  }
}

代码示例来源：origin: edu.ucar/cdm

public float[] getAzi(String aziName, int swpNumber) throws IOException {
  try {
    Array aziData = ds.findVariable(aziName).read();
    int [] aziOrigin = new int[2];
    aziOrigin[0] = swpNumber;
    aziOrigin[1] = 0;  //shape[1] - getRadialNumber();
    int [] aziShape = {1, getRadialNumber()};
    aziData = aziData.section(aziOrigin, aziShape);
    return (float [])aziData.get1DJavaArray(Float.TYPE);
  } catch (ucar.ma2.InvalidRangeException e) {
    throw new IOException(e);
  }
}

代码示例来源：origin: Unidata/thredds

public float[] getEle(String elevName, int swpNumber) throws IOException {
  try {
    Array eleData = ds.findVariable(elevName).read();
    int [] eleOrigin = new int[2];
    eleOrigin[0] = swpNumber;
    eleOrigin[1] = 0;
    int [] eleShape = {1, getRadialNumber()};
    eleData = eleData.section(eleOrigin, eleShape);
    return (float [])eleData.get1DJavaArray(Float.TYPE);
  } catch (ucar.ma2.InvalidRangeException e) {
    throw new IOException(e);
  }
}

代码示例来源：origin: edu.ucar/cdm

public float[] getEle(String elevName, int swpNumber) throws IOException {
   try {
     Variable evar = ds.findVariable(elevName);
     Array eleData = evar.read();
     evar.setCachedData(eleData, false);
     int [] eleOrigin = new int[2];
     eleOrigin[0] = swpNumber;
     eleOrigin[1] = 0;
     int [] eleShape = {1, getRadialNumber()};
     eleData = eleData.section(eleOrigin, eleShape);
     return (float [])eleData.get1DJavaArray(Float.TYPE);
   } catch (ucar.ma2.InvalidRangeException e) {
     throw new IOException(e);
   }
}

代码示例来源：origin: edu.ucar/cdm

public float[] getAzi(String aziName, int swpNumber) throws IOException {
   try {
     Variable avar = ds.findVariable(aziName);
     Array aziData = avar.read();
     avar.setCachedData(aziData, false);
     int[] aziOrigin = new int[2];
     aziOrigin[0] = swpNumber;
     aziOrigin[1] = 0;  //shape[1] - getRadialNumber();
     int[] aziShape = {1, getRadialNumber()};
     aziData = aziData.section(aziOrigin, aziShape);
     return (float[])aziData.get1DJavaArray(Float.TYPE);
   } catch (ucar.ma2.InvalidRangeException e) {
     throw new IOException(e);
   }
}

代码示例来源：origin: Unidata/thredds

public float[] getEle(String elevName, int swpNumber) throws IOException {
   try {
     Variable evar = ds.findVariable(elevName);
     Array eleData = evar.read();
     evar.setCachedData(eleData, false);
     int [] eleOrigin = new int[2];
     eleOrigin[0] = swpNumber;
     eleOrigin[1] = 0;
     int [] eleShape = {1, getRadialNumber()};
     eleData = eleData.section(eleOrigin, eleShape);
     return (float [])eleData.get1DJavaArray(Float.TYPE);
   } catch (ucar.ma2.InvalidRangeException e) {
     throw new IOException(e);
   }
}

代码示例来源：origin: Unidata/thredds

public float[] getAzi(String aziName, int swpNumber) throws IOException {
   try {
     Variable avar = ds.findVariable(aziName);
     Array aziData = avar.read();
     avar.setCachedData(aziData, false);
     int[] aziOrigin = new int[2];
     aziOrigin[0] = swpNumber;
     aziOrigin[1] = 0;  //shape[1] - getRadialNumber();
     int[] aziShape = {1, getRadialNumber()};
     aziData = aziData.section(aziOrigin, aziShape);
     return (float[])aziData.get1DJavaArray(Float.TYPE);
   } catch (ucar.ma2.InvalidRangeException e) {
     throw new IOException(e);
   }
}

代码示例来源：origin: edu.ucar/netcdf

public float[] getAzi(String aziName, int swpNumber) throws IOException {
 Array aziData = null;
 if(aziData == null) {
   try {
     Array aziTmp = ds.findVariable(aziName).read();
     int [] aziOrigin = new int[2];
     aziOrigin[0] = swpNumber;
     aziOrigin[1] = 0;  //shape[1] - getRadialNumber();
     int [] aziShape = {1, getRadialNumber()};
     aziData = aziTmp.section(aziOrigin, aziShape);
   } catch (IOException e) {
     e.printStackTrace();
   } catch (ucar.ma2.InvalidRangeException e) {
     e.printStackTrace();
   }
 }
 return (float [])aziData.get1DJavaArray(Float.TYPE);
}

代码示例来源：origin: Unidata/thredds

public float getAzimuth(int ray) throws IOException {
 String aziName = "Azimuth";
 try {
  Array aziData = ds.findVariable(aziName).read();
  if (isVolume) {
   int[] aziOrigin = new int[2];
   aziOrigin[0] = sweepno;
   aziOrigin[1] = 0;
   int[] aziShape = {1, getRadialNumber()};
   aziData = aziData.section(aziOrigin, aziShape);
  }
  Index index = aziData.getIndex();
  return aziData.getFloat(index.set(ray));
 } catch (ucar.ma2.InvalidRangeException e) {
  throw new IOException(e);
 }
}

代码示例来源：origin: edu.ucar/cdm

public float getAzimuth(int ray) throws IOException {
  String aziName = "Azimuth";
   try {
     Array aziData = ds.findVariable(aziName).read();
     if(isVolume) {
       int [] aziOrigin = new int[2];
       aziOrigin[0] = sweepno;
       aziOrigin[1] = 0;
       int [] aziShape = {1, getRadialNumber()};
       aziData = aziData.section(aziOrigin, aziShape);
     }
     Index index = aziData.getIndex();
     return aziData.getFloat(index.set(ray));
   } catch (ucar.ma2.InvalidRangeException e) {
     throw new IOException(e);
   }
}

代码示例来源：origin: edu.ucar/netcdf

public float getEle(String elevName, int swpNumber, int ray) throws IOException {
 Array eleData = null;
 try {
   Array eleTmp = ds.findVariable(elevName).read();
   int [] eleOrigin = new int[2];
   eleOrigin[0] = swpNumber;
   eleOrigin[1] = 0; //shape[1] - getRadialNumber();
   int [] eleShape = {1, getRadialNumber()};
   eleData = eleTmp.section(eleOrigin, eleShape);
 } catch (IOException e) {
   e.printStackTrace();
 } catch (ucar.ma2.InvalidRangeException e) {
   e.printStackTrace();
 }
 // if(eleData == null) initAzi();
 Index index = eleData.getIndex();
 return eleData.getFloat(index.set(ray));
}

代码示例来源：origin: edu.ucar/netcdf

public float getEle(String elevName, int swpNumber, int ray) throws IOException {
 Array eleData = null;
 try {
   Variable evar = ds.findVariable(elevName);
   Array eleTmp = evar.read();
   evar.setCachedData(eleTmp, false);
   int [] eleOrigin = new int[2];
   eleOrigin[0] = swpNumber;
   eleOrigin[1] = 0; //shape[1] - getRadialNumber();
   int [] eleShape = {1, getRadialNumber()};
   eleData = eleTmp.section(eleOrigin, eleShape);
 } catch (IOException e) {
   e.printStackTrace();
 } catch (ucar.ma2.InvalidRangeException e) {
   e.printStackTrace();
 }
 // if(eleData == null) initAzi();
 Index index = eleData.getIndex();
 return eleData.getFloat(index.set(ray));
}

代码示例来源：origin: edu.ucar/netcdf

static private void extractSection(ParsedSectionSpec child, ArrayStructure outerData, IndexIterator to) throws IOException, InvalidRangeException {
 long wantNelems = child.section.computeSize();
 StructureMembers.Member m = outerData.findMember(child.v.getShortName());
 for (int recno = 0; recno < outerData.getSize(); recno++) {
  Array innerData = outerData.getArray(recno, m);
  if (child.child == null) {  // inner variable
   if (wantNelems != innerData.getSize())
    innerData = innerData.section(child.section.getRanges());
   MAMath.copy(child.v.getDataType(), innerData.getIndexIterator(), to);
  } else {                   // not an inner variable - must be an ArrayStructure
   if (innerData instanceof ArraySequence)
    extractSectionFromSequence(child.child, (ArraySequence) innerData, to);
   else {
    if (wantNelems != innerData.getSize())
     innerData = sectionArrayStructure(child, (ArrayStructure) innerData, m);
    extractSection(child.child, (ArrayStructure) innerData, to);
   }
  }
 }
}

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