Real-time DataNET Help

Send Data

This interface is used to transfer data (images, vectors, or rasters) to the MAGNET4WATER modeling platforms (e.g., IGW-NET for groundwater modeling, SwaNET for watershed modeling, StormNET for stormwater modeling, etc) 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 for direct transfer.

The basic steps to transfer a DataNET layer include:

1) find and select (check) a layer of interest in the Data Layer Library or user Workspace

2) define an area of interest in the map display by drawing an analysis area (Title Toolbar > Draw Analysis Area > 'Rectangle' or 'Polygon').

3) Open the Send Data dialog (Title Toolbar > Transfer Modeling Data > Send Data Layer Within Analysis Area)

4) Select a webService format (WMS-image, WFS-vector, or WCS-raster) and specify additional options (or use defaults)

5) Click 'Send'. If DataNET is not already linked to a MAGNET4WATER modeling platform, click 'Send' once to trigger linking, and after the platform loads, click a second time to transfer data.

6) Follow the on-screen prompts in the MAGNET4WATER modeling page to overlay the data or import as inputs/features of the model.

WMS

Select the WMS Service to send a map image of the data layer. If sending a data layer from DataNET, this requires that the selected layer is available as WMS (i.e., it has a lettered icon M next to it). If multiple layers are selected, the images will be combined before being sent in the WMS data transfer.

Select the image resolution (max number of pixels) using the drop-down menu next to 'Data Res'. A higher number will take more time and memory to transfer, but result in a clearer image in the modeling platform.

The URL Only option can be checked to send just the final webService URL to the modeling platform. In this case the data itself will be extracted in the modeling platform, not DataNET. This option can be useful for large/complex data or that may require special handeling.

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 '(Optional) URL' and click 'Parse URL'.

You can also upload an image (.png) file for transfer using the (Optional) File upload option. For the image to be accurately overlayer in the MAGNET4WATER modeling platform, prior to uploading it must be cropped to match the analysis area bounding box. If DataNET is not already linked to a MAGNET4WATER modeling platform, uploading an image will prompt the user to choose a modeling platform. After the modeling platform loads, reupload or click 'Send' to transfer the image.

WFS

If you want to send vector data (polygons, lines, or points) select the WFS Service. This requires that the selected layer is available as WFS (i.e., it has a lettered icon F next to it). Multiple WFS layers are only allowed when sending consistent layers (same source site) with URL only option.

In the case of lines and polygons, all features that are at least partially contained within the analysis area will be including in the data transfer. (If the analysis area is contained completely within a polygon feature, just that single polygon will be transferred).

The Max Count 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 is useful to test and inspect a subset of the data in a model before transferring the entire analysis area.

The URL Only option can be checked to send just the final webService URL to the modeling platform. In this case the data itself will be extracted in the modeling platform, not DataNET. This option can be useful for large/complex data or vector data with multiple sub-layers that may require special handeling.

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., typename, projection, bounding box, etc.) in the text field next to '(Optional) URL' and click 'Parse URL'.

You can also upload a JSON file (.json) for use of WFS transfer services using the (Optional) File upload option. If DataNET is not already linked to a MAGNET4WATER modeling platform, uploading a JSON file will prompt the user to choose a modeling platform. After the modeling platform loads, reupload or click 'Send' to transfer the file.

WCS

If you want to send raster data (tiled/gridded data layer) select the WCS Service. This requires that the selected layer is available as WCS (i.e., it has a lettered icon C next to it). Only a single WCS layer can be selected.

If data will be resampled, select the data resolution (grid-size; max number of cell in height or width) using the drop-down menu next to 'Data Res'. A higher number will take more time and memory to transfer, but result in more precise raster.

The Buffer % allows for adding a "buffer" around the analysis area bounding box for data transfer (when not resampling). 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.)

The Sample Area Percent is used to get the source raster grid resolution. This is used during resampling and chunking data for efficient transfer. This should be set to include at least one grid cell, and generally set lower for larger areas or higher resolution datasets, and set higher for smaller areas or coarser resolution datasets.

The URL Only option can be checked to send just the final webService URL to the modeling platform. In this case the data itself will be extracted in the modeling platform, not DataNET. This option can be useful for large/complex data or that may require special handeling.

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, subsets, etc.) in the text field next to '(Optional) URL' and click 'Parse URL'.

You can also upload a raster file (.tif) for use of WCS transfer services using the (Optional) File upload option. If DataNET is not already linked to a MAGNET4WATER modeling platform, uploading a raster file will prompt the user to choose a modeling platform. After the modeling platform loads, reupload or click 'Send' to transfer the file.

After clicking 'Send' the user will be asked if they want to resample the data (use the 'Data Res' parameter specified) or use the source (raw) data. Generally resampled data is sufficient. If the selected resampling resolution is higher than the raw data resolution, DataNET will automatically use the raw data.