1Overview
This interface is used to transfer data (rasters, vectors, or images) to the MAGNET modeling platforms (e.g., MAGNET-Groundwater, MAGNET-SWAT, MAGNET-StormNET, ...) via webservices (WMS, WFS, WCS). Users can transfer a data layer from DataNet, from an outside web data service, or they can upload their own data (or data downloaded from DataNet) for direct transfer.The basic steps to transfer a Datanet layer include:
1) select (check) a layer of interest from the Layer TreeView interface
2) define an area of interest in the map display by drawing a bounding box (Title Toolbar > Draw Tool > 'Irregular' or 'Regular).
3) 3) Select a Service (WMS, WFS, or WCS) and specify options (or use defaults)
Click send once (to open the modeling page of your choice, if not already done) and a second time (to complete the data transfer)
Follow the on-screen prompts in the MAGNET modeling page to overlay the data or import as inputs/features of the model.
2WMS
Select the WMS Service to send an image (screenshot) of the data layer. If sending a data layer from DataNET, this requires that selected layer is available as WMS (i.e., it has lettered icon "M" (
next to it.). If multiple layers are selected and happen to overlap, the top-most (front-displayed) layer will be sent in the WMS data transfer.
If you want to send an image from an outside WMS service, you can enter the "Final" or full WMS (URL) request (with complete options, e.g., layer name, projection, bounding box, etc.) in the text field next to 'Data Url'.
You can also upload an image file for transfer using the Upload File option.
3WFS
If you want to send vector data (polygons, lines, or points) select the WFS Service.In the case of lines and polygons, all features that are at least partially contained within the bounding box will be including in the data transfer. (If the bounding box is contained completing within a polygon feature, just that single polygon will be transferred).
The Max Feature option allows the user to specify how many feature will be transferred (e.g., in the case of many, many point data in the selection). This feature is currently disabled - more details coming soon!
If you want to send a vector from an outside WFS service, you can enter the "Final" or full WFS (URL) request (with complete options, e.g., layer name, projection, bounding box, etc.) in the text field next to 'Data Url' .
You can also upload a JSON file for use of WFS transfer services using the Upload File option.
4WCS
If you want to send raster data (tiled/gridded data layer) select the WCS Service.Select the data resolution (grid-size) using the drop-down menu next to 'Data Res'. Units are in meters. DataNET will automatically perform sub-sampling if the selected resolution is different than the original data resolution.
The Buffer % allows for adding a "buffer" around the bounding box for data transfer. In other words, the data will be expanded beyond the bounding box by an amount determined by the original size of the bounding box and the buffer percentage. For example, a 10% buffer means each edge of the bounding box will be expanded outward by 10%. (In this way the buffer "value" is always relative. If the original bounding box is small, the resulting buffer will be small, even for a large percentage.)
If you want to send a raster from an outside WCS service, you can enter the "Final" or full WFS (URL) request (with complete options, e.g., layer name, projection, bounding box, etc.) in the text field next to 'Data Url' .
You can also upload a raster file for use of WCS transfer services using the Upload File option.