https://github.com/equinor/pyvds

Read VDS files with segyio-like syntax
https://github.com/equinor/pyvds

Last synced: 3 months ago
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Read VDS files with segyio-like syntax

• Host: GitHub
• URL: https://github.com/equinor/pyvds
• Owner: equinor
• License: apache-2.0
• Created: 2021-07-30T10:07:41.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2024-07-10T07:31:01.000Z (4 months ago)
• Last Synced: 2024-07-10T09:27:46.415Z (4 months ago)
• Language: Python
• Size: 53.7 KB
• Stars: 5
• Watchers: 2
• Forks: 2
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

Awesome Lists containing this project

• awesome-open-geoscience - pyVDS

README

        
# pyVDS

[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)

[![CircleCI](https://circleci.com/gh/equinor/pyvds/tree/master.svg?style=shield)](https://circleci.com/gh/equinor/pyvds/tree/master)

[![PyPi Version](https://img.shields.io/pypi/v/pyvds.svg)](https://pypi.org/project/pyvds/)

Convenience wrapper around Bluware's OpenVDS+ Python bindings which enables 

reading of VDS files with a syntax familiar to users of segyio.

---

### Installation

Requires [**openvds** package from Bluware](https://community.opengroup.org/osdu/platform/domain-data-mgmt-services/seismic/open-vds).

**N.B. This is licensed under CC-BY-ND 4.0**

- Wheels from [PyPI](https://pypi.org/project/pyvds/): `pip install pyvds`

- Source from [Github](https://github.com/equinor/pyvds): `git clone https://github.com/equinor/pyvds.git`

---

### Usage

#### Use segyio-like interface to read VDS files ####

```python

import pyvds

with pyvds.open("in.vds")) as vdsfile:

    il_slice = vdsfile.iline[vdsfile.ilines[LINE_IDX]]

    xl_slice = vdsfile.xline[LINE_NUMBER]

    zslice = vdsfile.depth_slice[SLICE_IDX]

    trace = vdsfile.trace[TRACE_IDX]

    trace_header = vdsfile.header[TRACE_IDX]

    text_file_header = vdsfile.text[0]

```

#### Read a VDS file with underlying functions ####

```python

from pyvds.accessors import VdsReader

with VdsReader("in.vds") as reader:

    inline_slice = reader.read_inline_number(LINE_NUMBER)

    crossline_slice = reader.read_crossline(LINE_IDX)

    z_slice = reader.read_zslice_coord(SLICE_COORD)

    sub_vol = reader.read_subvolume(min_il=min_il, max_il=max_il,

                                    min_xl=min_xl, max_xl=max_xl,

                                    min_z=min_z, max_z=max_z)

```

---

### Creating VDS files

Example of creating wavelet compressed VDS file from SEG-Y:

```

.\SEGYImport.exe --vdsfile  --compression-method wavelet --tolerance 1 

```

SEGYImport may be obtained from [Bluware's OpenVDSPlus distribution](https://bluware.jfrog.io/native/Releases-OpenVDSPlus/2.1)