This package provides GIS capabilities for EO4VisTrails.
In particular, it provides GRASS, PostGIS, OGC web clients and some visualisation capabilities through the QGIS API.
This package provides consistent internal data models for feature, raster and time-series data. Proposes use of gdal, ogr (or GeoJson) and hdf
This module forms part of the eo4vis1trails capabilities - it is used as a base module for building requests.
alias of <Mock object at 0x28cd290>
This module provides an generic OGC Simple Features data model via OGR. All eo4vistrails modules dealing with feature data must extend one of the provided classes.
Add module to the Vistrails registry; specify input & output ports.
alias of <Mock object at 0x2ba9290>
alias of <Mock object at 0x2ba5890>
alias of <Mock object at 0x2ba5a10>
alias of <Mock object at 0x2ba59d0>
This module provides a means for saving raster and vector data to file, in the format defined by QGIS.
alias of <Mock object at 0x2b86150>
This module provides a generic coverage/raster data model via GDAL. All eo4vistrails modules dealing with raster data must extend this class.
Add module to the Vistrails registry; specify input & output ports.
Used as both a storage mechanism for MemRasterModel instances and as a general GDAL constructor, i.e. whether you want an in-memory GDAL data provider or not, data will always be passed into GDAL control via instances of _GdalMemModel
Loads content off filesystem, e.g. from a geotiff
| Parameters: |
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|---|---|
| Return type: | None |
Expects datasets with one layer, so some arcane formats are out...
Loads content off web service, feed etc.; e.g., a WCS
| Parameters: |
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| Return type: | None |
These arguments allow creation of GET/POST requests, and also allow us to make GDAL sensibly deal with the inputs.
For WCS, we expect a WCS GetCoverage request to be incoming. GDAL, our raster “swiss army knife”, expects to access a WCS from a config file on the filesystem, that looks like:
<WCS_GDAL>
<ServiceURL>
http://ict4eo.meraka.csir.co.za/geoserver/wcs?
</ServiceURL>
<CoverageName>
nurc:Img_Sample
</CoverageName>
</WCS_GDAL>
and is called something like ict4eowcs.wcs.
GDAL needs read/write access to this file, for it then writes the capabilities to it for later reference.
alias of <Mock object at 0x2b39210>
This package provides core and general purpose code for eo4vistrails geoinf module. In particular, it provides geo-constanst for use in other modules.
This package provides core and general purpose helper code for eo4vistrails geoinf module. In particular, provides a tool for defining Areas, Lines and Points of interest for use elsewhere in GIS environments and statistical environments.
This package provides GIS capabilities for eo4vistrails. In particular, it provides PostGIS clients via psycopg2.
This package provides OGC capabilities for eo4vistrails. In particular, provides WFS, WCS and SOS clients through the owslib (http://gispython.org/owslib) library, and hence has a dependency thereupon. owslib is dependent on libxml or elementree
This module provides a small API for fetching the service and dealing with OGC (Open Geospatial Consortium) Web Service metadata, which is common to all the various services (via owslib).
NOTE:
As at 2010-11-09, you will need to patch version 0.3.4b for owslib sos.py:
self.filters=filter.Filter_Capabilities(val)
should be:
self.filters=filter.FilterCapabilities(val)
Base class for OGC service operations.
Input ports:
- service_url: string
- URL for OGC service
- service_type: string
- ‘wfs’, ‘sos’, ‘wcs’
- service_version: string
- currently only version 1.0 for OGC services (but see Notes)
- timeout: integer
- in seconds - some lines/servers experiences slow speeds and/or the XML being returned is in a large document, taking time to construct (see inline comments about usage in different services)
- capabilities:
- a full capabilities document - if provided, no call will be made by owslib to the service_url, and this will be used instead
Notes:
Namespace issues pervade WFS in owslib e.g. * cannot handle when geoserver shortcuts a namespace with an abbreviation * wfs will never load a 1.1.0 instance, but it should be loaded as wfs200
service identification metadata is structured differently for the different services - parse appropriately
provider metadata is structured differently for the different services - parse appropriately
service identification metadata is structured differently for the different services - parse appropriately
This module provides FTP functionality.
alias of <Mock object at 0x3165f10>
This module provides general OGC (Open Geospatial Consortium) Web Service selection widgets for configuring geoinf.web modules.
This refers primarily to GetCapabilities requests
TODO - write docstring
Create a tuple-form of a port, for use by Vistrails module
alias of <Mock object at 0x3028c10>