Examples of ucar.ma2.IndexIterator

ucar.ma2.Array
Iteration through each element of an Array in "canonical order". The user obtains this by calling getIndexIterator() on an Array.
Canonical order for A[i][j][k] has k varying fastest, then j, then i.

Example: Replace array with its square:
```
 IndexIterator iter = A.getIndexIterator(); while (iter.hasNext()) { double val = iter.getDoubleNext(); iter.setDoubleCurrent( val * val); } 
```
Note that canonical order may not be physical order. @author caron

        useIndex++;
      } else {
        useIndex--;
      }
    }
    Array dataArray = Array.factory(DataType.DOUBLE, new int[]{ny}, data);
    v.setCachedData(dataArray, false);


    v.addAttribute(new Attribute("units", units));
    v.addAttribute(new Attribute("long_name", desc));
    v.addAttribute(new Attribute("standard_name", standard_name));

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        proj.projToLatLon(projPoint, latlonPoint);
        latData[i * nx + j] = latlonPoint.getLatitude();
        lonData[i * nx + j] = latlonPoint.getLongitude();
      }
    }
    Array latDataArray = Array.factory(DataType.DOUBLE, new int[]{ny, nx}, latData);
    latVar.setCachedData(latDataArray, false);


    Array lonDataArray = Array.factory(DataType.DOUBLE, new int[]{ny, nx}, lonData);
    lonVar.setCachedData(lonDataArray, false);


    ncfile.addVariable(g, latVar);
    ncfile.addVariable(g, lonVar);
  }

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    // dummy coordsys variable
    Variable v = new Variable(ncfile, g, null, grid_name);
    v.setDataType(DataType.CHAR);
    v.setDimensions(""); // scalar
    char[] data = new char[]{'d'};
    Array dataArray = Array.factory(DataType.CHAR, new int[0], data);
    v.setCachedData(dataArray, false);


    for (Attribute att : attributes)
      v.addAttribute(att);

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   */
  private void addCoordSystemVariable(NetcdfFile ncfile, String name, String dims) {
    Variable v = new Variable(ncfile, g, null, name);
    v.setDataType(DataType.CHAR);
    v.setDimensions(""); // scalar
    Array dataArray = Array.factory(DataType.CHAR, new int[0], new char[]{'0'});
    v.setCachedData(dataArray, false);
    v.addAttribute(new Attribute(_Coordinate.Axes, dims));
    if (isLatLon())
      v.addAttribute(new Attribute(_Coordinate.Transforms, "")); // to make sure its identified as a Coordinate System Variable
    else

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      System.out.printf(" Error= %s %n",t.getMessage());
    }
  }


  static public void compareVariableData(Variable var1, Variable var2) throws IOException {
    Array data1 = var1.read();
    Array data2 = var2.read();


    if (showCompare) System.out.print("compareArrays  "+var1.getFullName()+" "+var1.isUnlimited()+ " size = "+data1.getSize());
    compareData(data1, data2);
    if (showCompare) System.out.println(" ok");
  }

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  public void problemV() throws IOException {
    H5header.setDebugFlags(new ucar.nc2.util.DebugFlagsImpl("H5header/header"));
    String filename = testDir + "ssec-h5/MYD04_L2.A2006188.1830.005.2006194121515.hdf";
    NetcdfFile ncfile = NetcdfFile.open(filename);
    Variable v = ncfile.findVariable("/U-MARF/EPS/IASI_xxx_1C/DATA/SPECT_LAT_ARRAY");
    Array data = v.read();
    System.out.println("\n**** testReadNetcdf4 done\n\n" + ncfile);
    NCdump.printArray(data, "primary_cloud", System.out, null);
    ncfile.close();
  }

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    // actually bogus - apparently all filters arre turned off
    // but its a test of filtered data with no filter actually applied
    NetcdfFile ncfile = TestH5.openH5("support/zip.h5");
    Variable v = ncfile.findVariable("Data/Compressed_Data");
    assert v != null;
    Array data = v.read();
    int[] shape = data.getShape();
    assert shape[0] == 1000;
    assert shape[1] == 20;


    Index ima = data.getIndex();
    for (int i = 0; i < 1000; i++)
      for (int j = 0; j < 20; j++) {
        int val = data.getInt(ima.set(i, j));
        assert val == i + j : val + " != " + (i + j);
      }


  }

View Full Code Here


    // probably bogus also, cant find any non-zero filtered variables
    NetcdfFile ncfile = TestH5.openH5("wrf/wrf_input_seq.h5");
    Variable v = ncfile.findVariable("DATASET=INPUT/GSW");
    assert v != null;
    Array data = v.read();
    int[] shape = data.getShape();
    assert shape[0] == 1;
    assert shape[1] == 20;
    assert shape[2] == 10;
  }

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    NetcdfFile ncfile = TestH5.openH5("msg/MSG1_8bit_HRV.H5");


    // picture looks ok in ToolsUI
    Variable v = ncfile.findVariable("image1/image_data");
    assert v != null;
    Array data = v.read();
    int[] shape = data.getShape();
    assert shape[0] == 1000;
    assert shape[1] == 1500;
  }

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    NetcdfFile ncfile = TestH5.openH5("HIRDLS/HIRDLS2-AFGL_b027_na.he5");


    // picture looks ok in ToolsUI
    Variable v = ncfile.findVariable("HDFEOS/SWATHS/HIRDLS/Data Fields/Altitude");
    assert v != null;
    Array data = v.read();
    int[] shape = data.getShape();
    assert shape[0] == 6;
    assert shape[1] == 145;
  }

View Full Code Here

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