[Hdf-forum] Any c++ samples
Hi all, I am new to hdf forum. I have few ascii files with filled with vertices and I am trying to convert them to layers each containing the arrays. I use the C++ code for this. I tried to download the simple c++ samples for this conversion along with necessary lib/dlls but I for some reason i am having hard time. Does anyone have a sample for this or any pointers? I really appreciate your help. Thanks. Regards, Ramesh Sridharan Ph: 505-463-3960 http://www.linkedin.com/in/rameshs Its only weird if it doesn't work. ___ Hdf-forum is for HDF software users discussion. Hdf-forum@hdfgroup.org http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
Re: [Hdf-forum] Any c++ samples
This is not really c++ (am using C interface) but it is an example for converting some in-house binary format to hdf5 https://github.com/dashesy/CereLink/tree/master/n2h5 I myself appreciate if there are more examples to look On Thu, Apr 11, 2013 at 11:07 PM, Ramesh Sridharan ramesh.sridha...@yahoo.com wrote: Hi all, I am new to hdf forum. I have few ascii files with filled with vertices and I am trying to convert them to layers each containing the arrays. I use the C++ code for this. I tried to download the simple c++ samples for this conversion along with necessary lib/dlls but I for some reason i am having hard time. Does anyone have a sample for this or any pointers? I really appreciate your help. Thanks. Regards, Ramesh Sridharan Ph: 505-463-3960 http://www.linkedin.com/in/rameshs Its only weird if it doesn't work. ___ Hdf-forum is for HDF software users discussion. Hdf-forum@hdfgroup.org http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org ___ Hdf-forum is for HDF software users discussion. Hdf-forum@hdfgroup.org http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
Re: [Hdf-forum] c# read different datatypes
Can anyone show how to read string data and compound data,cause all my attempts end up with unreadable output and without this data i can't go ahead -__- to make some calculations. TRAAAVO128F93133D4.h5 http://hdf-forum.184993.n3.nabble.com/file/n4026086/TRAAAVO128F93133D4.h5 The majority of similar questions in this forum are unanswered ( -- View this message in context: http://hdf-forum.184993.n3.nabble.com/c-read-different-datatypes-tp4026057p4026086.html Sent from the hdf-forum mailing list archive at Nabble.com. ___ Hdf-forum is for HDF software users discussion. Hdf-forum@hdfgroup.org http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
Re: [Hdf-forum] c# read different datatypes
Here is a C# class that i created for my application to read / write some 2D
and 3D arrays and basic data types. It has functions to read / write
strings. I have not used compound data. Hope this helps a bit.
Shashi
class HDFFileHandler
{
public enum DataTypes
{
STRING,
INTEGER,
DOUBLE,
BYTE,
USHORT,
FLOAT
}
public H5FileId CreateFile(string filename)
{
return H5F.create(filename, H5F.CreateMode.ACC_TRUNC);
}
public H5GroupId CreateGroup(string groupName, H5LocId parentGroup)
{
return H5G.create(parentGroup, groupName);
}
public H5DataSetId Create1DDataSet(string datasetName,
H5FileOrGroupId parentGroup, DataTypes datatype, int size)
{
long[] dims = new long[1];
dims[0] = size;
H5DataSpaceId spaceId = H5S.create_simple(1, dims);
H5DataTypeId typeId = null;
switch (datatype)
{
case DataTypes.BYTE:
typeId = H5T.copy(H5T.H5Type.NATIVE_UCHAR);
break;
case DataTypes.DOUBLE:
typeId = H5T.copy(H5T.H5Type.NATIVE_DOUBLE);
break;
case DataTypes.INTEGER:
typeId = H5T.copy(H5T.H5Type.NATIVE_INT);
break;
case DataTypes.STRING:
typeId = H5T.copy(H5T.H5Type.C_S1);
break;
case DataTypes.FLOAT:
typeId = H5T.copy(H5T.H5Type.NATIVE_FLOAT);
break;
case DataTypes.USHORT:
typeId = H5T.copy(H5T.H5Type.NATIVE_USHORT);
break;
default:
break;
}
return H5D.create(parentGroup, datasetName, typeId, spaceId);
}
public H5DataSetId Create2DDataSet(string datasetName,
H5FileOrGroupId parentGroup, DataTypes datatype, int sizeX, int sizeY)
{
long[] dims = new long[2];
dims[0] = sizeX;
dims[1] = sizeY;
H5DataSpaceId spaceId = H5S.create_simple(2, dims);
H5DataTypeId typeId = null;
switch (datatype)
{
case DataTypes.BYTE:
typeId = H5T.copy(H5T.H5Type.NATIVE_UCHAR);
break;
case DataTypes.DOUBLE:
typeId = H5T.copy(H5T.H5Type.NATIVE_DOUBLE);
break;
case DataTypes.INTEGER:
typeId = H5T.copy(H5T.H5Type.NATIVE_INT);
break;
case DataTypes.STRING:
typeId = H5T.copy(H5T.H5Type.C_S1);
break;
case DataTypes.FLOAT:
typeId = H5T.copy(H5T.H5Type.NATIVE_FLOAT);
break;
case DataTypes.USHORT:
typeId = H5T.copy(H5T.H5Type.NATIVE_USHORT);
break;
default:
break;
}
return H5D.create(parentGroup, datasetName, typeId, spaceId);
}
public H5DataSetId Create3DDataSet(string datasetName,
H5FileOrGroupId parentGroup, DataTypes datatype, int sizeX, int sizeY, int
nSizeZ)
{
long[] dims = new long[3];
dims[0] = sizeX;
dims[1] = sizeY;
dims[2] = nSizeZ;
H5DataSpaceId spaceId = H5S.create_simple(3, dims);
H5DataTypeId typeId = null;
switch (datatype)
{
case DataTypes.BYTE:
typeId = H5T.copy(H5T.H5Type.NATIVE_UCHAR);
break;
case DataTypes.DOUBLE:
typeId = H5T.copy(H5T.H5Type.NATIVE_DOUBLE);
break;
case DataTypes.INTEGER:
typeId = H5T.copy(H5T.H5Type.NATIVE_INT);
break;
case DataTypes.STRING:
typeId = H5T.copy(H5T.H5Type.C_S1);
break;
case DataTypes.FLOAT:
typeId = H5T.copy(H5T.H5Type.NATIVE_FLOAT);
break;
case DataTypes.USHORT:
typeId = H5T.copy(H5T.H5Type.NATIVE_USHORT);
break;
default:
break;
}
return H5D.create(parentGroup, datasetName, typeId, spaceId);
}
public void CloseFile(H5FileId fileId)
{
H5F.close(fileId);
}
public void CloseGroup(H5GroupId grpId)
{
H5G.close(grpId);
}
public void CloseDataset(H5DataSetId datasetId)
{
H5D.close(datasetId);
}
public H5FileId OpenFile(string filename,
Re: [Hdf-forum] c# read different datatypes
Thx,unfortunately,i have already tried reading string as byte array and it returns 0 . -- View this message in context: http://hdf-forum.184993.n3.nabble.com/c-read-different-datatypes-tp4026057p4026088.html Sent from the hdf-forum mailing list archive at Nabble.com. ___ Hdf-forum is for HDF software users discussion. Hdf-forum@hdfgroup.org http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
Re: [Hdf-forum] c# read different datatypes
I use that class in my project to read and write strings..And it works perfectly. If you had written the string using the write method i have in my class the read should work..May be the way you have written is different than mine. -- View this message in context: http://hdf-forum.184993.n3.nabble.com/c-read-different-datatypes-tp4026057p4026089.html Sent from the hdf-forum mailing list archive at Nabble.com. ___ Hdf-forum is for HDF software users discussion. Hdf-forum@hdfgroup.org http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
Re: [Hdf-forum] c# read different datatypes
The problem is ,that i don't write data,i only have a file to read) but finaly i got the byte array [,] and got data from string table, now i need just to transfer the values in [] array and use System.Text.Encoding.ASCII.GetString(); to make them readable I hope it will be fine. Then i`ll try byte array with compound dataset,just need time) -- View this message in context: http://hdf-forum.184993.n3.nabble.com/c-read-different-datatypes-tp4026057p4026090.html Sent from the hdf-forum mailing list archive at Nabble.com.___ Hdf-forum is for HDF software users discussion. Hdf-forum@hdfgroup.org http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
Re: [Hdf-forum] c# read different datatypes
Is it possible to read only 1 definite data field and not the hole dataset of a table? -- View this message in context: http://hdf-forum.184993.n3.nabble.com/c-read-different-datatypes-tp4026057p4026091.html Sent from the hdf-forum mailing list archive at Nabble.com. ___ Hdf-forum is for HDF software users discussion. Hdf-forum@hdfgroup.org http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
[Hdf-forum] HDF5 1.8.11 release candidate is available for testing
Hello everyone, A pre-release candidate version of HDF5 1.8.11 is available for testing and can be downloaded at the following link: http://www.hdfgroup.uiuc.edu/ftp/pub/outgoing/hdf5/hdf5-1.8.11/hdf5-1.8.11-pre1.tar.gz If you have some time to test this pre-release, we would greatly appreciate it. We try to test on a wide variety of platforms and environments but are unable to test everywhere so feedback from the user community is always welcome. Please note that while the release notes contained in the pre-release are reflective of the changes and additions present in this release, the 'platforms tested' and 'tested configurations' sections have yet to be updated for this version of HDF5. We plan to release HDF5 1.8.11 in mid-May barring the discovery of any critical issues. Thank you! The HDF Group ___ Hdf-forum is for HDF software users discussion. Hdf-forum@hdfgroup.org http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
