Changes between Version 5 and Version 6 of geography_network_support
- Timestamp:
- 07/04/14 11:37:42 (10 years ago)
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geography_network_support
v5 v6 5 5 6 6 7 An implementation of an OGR driver, which intends to operate with networks which are built over the spatial data of different GIS-formats.7 An implementation of an GNM set of classes, which intends to operate with networks which are built over the spatial data of different GIS-formats. 8 8 9 9 … … 22 22 23 23 24 While OGR is already a model for spatial data and it generalizes work with different GIS formats, it can be possible to bring to it the same network functionality and to create the same model for network data, which will also generalize work with different network formats. This will be a layer of abstraction for networks, like OGR now is a layer of abstraction for spatial data. Technically the core of the model will be a new OGR driver. Together with additional classes and functions it will form a universal network model.24 While OGR is already a model for spatial data and it generalizes work with different GIS formats, it can be possible to bring to it the same network functionality and to create the same model for network data, which will also generalize work with different network formats. This will be a layer of abstraction for networks, like OGR now is a layer of abstraction for spatial data. Technically the core of the model will be a new GNM set of classes. Together with additional classes and functions it will form a universal network model. 25 25 26 26 … … 34 34 35 35 36 - New driverwill use all basic methods of OGRDataSource/OGRLayer to operate with data as usual and add new capabilities, such as connectFeatures() and disconnectFeatures() methods.36 - New GNM set of classes will use all basic methods of OGRDataSource/OGRLayer to operate with data as usual and add new capabilities, such as connectFeatures() and disconnectFeatures() methods. 37 37 38 38 - The model will provide a mechanism to implement some algorithms of automatic graph building, depending on input data. The basic algorithm will use several point and line OGRLayers to build a network. … … 44 44 45 45 46 3. Import/export network. The model will have a mechanism to implement small drivers to convert for example pgRouting or SpatiaLite VirtualNetwork networks from/to the OGR network model.46 3. Import/export network. The model will have a mechanism to implement small drivers to convert for example pgRouting or SpatiaLite VirtualNetwork networks from/to the GNM. 47 47 48 48 … … 80 80 81 81 82 Github: https://github.com/MikhanGusev/gdal -svn82 Github: https://github.com/MikhanGusev/gdal 83 83 84 84 Blog: http://gsoc2014gnm.blogspot.ru/