The Multispectral Product Editor
On this page, you will find general help for the ProRaster product family including links to documentation, instructional videos, and training videos.
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Access the product editor dialog by creating a new product in the scene browser, or by editing a product in the product browser.
The editor allows you to build new data products by applying processing operations to the original spectral raster product. As you add operations, you build a waterfall style cascade where the output from an operation is dependent on all the operations up the waterfall. If you update or modify an operation, then all the operations downstream of that modified operation will be updated.
On the left of the dialog is a tree control which represents the operation waterfall. On the right is a property sheet that changes content depending on what operation you select in the tree control.
Every item in the tree control is an operation. An operation has inputs (usually a spectral raster) and outputs (usually a raster). It applies an operation to the inputs to generate the outputs. In almost all cases, both the inputs and output will be virtual rasters. All these virtual rasters will be stored in the product database folder, and they will have an automated file naming convention. In general, you are not able to modify the naming of inputs or outputs.
All operations have a common property page that show you the name and description of the operation. You can also see an XML script which is used to generate the operation and lists all the properties of the operation including the inputs and the outputs. Hit the “Modify and Run Operation” button, or simply double-click on the operation item in the tree control, to open a dialog to edit the operation properties. If you modify these properties and hit OK, then all downstream operations in the product will be updated.
Most operations have a preview property page that displays a map showing a default rendering of the product up to and including the application of that operation. You can use the mouse wheel to zoom this map. Click, hold, and drag the mouse left button to pan the map.
If you right-click on an operation in the tree control, you will see a context menu that might display the following options. The actual number of options that are offered can vary according to the operation selected.
“Display now” sends the output of the selected operation to the ProRaster main interface and is displayed in a default algorithm. A Look-up Table color layer will be used so you can explore each of the fields, bands, and events in the output raster. If you want to keep the algorithm you must save it in the normal way.
“Render now” sends the output of the selected operation to the ProRaster main interface and is displayed in a default algorithm. An RGB color layer will be used, and you can choose a band combination to assign spectral bands to rendering components. If you want to keep the algorithm you must save it in the normal way.
“Show in folder” opens a Windows Explorer application and navigates it to the folder that contains the output files from the operation.
“Mask by raster” applies a mask to the input. You will probably use one of the mask bands in the original scene raster data.
“Clip by polygon” clips the input to a complex polygon set.
“Reproject” changes the coordinate system of the raster. At the same time, you should change the cell size to a suitable cell size in the new coordinate system. You can also realign the cell boundaries.
“Render Algorithm” generates a spectral rendering algorithm, just like the “Render now” option, but saves it to the product database folder. It can be used as input to other products.
“Index” computes one or more spectral indices. The input must be spectral, and the output will be non-spectral continuous data.
“Calculator” applies a calculator expression to the input, incorporating other raster data as required. The output will be non-spectral continuous data.
“Statistics” computes statistics for the input raster dataset. You can compute statistics for any selection of fields and bands and events. Once computed, you will be able to browse the statistics in the property sheet. There is no raster output from this operation.
“Export” exports the input virtual raster to a crystallised raster in either MRR format or a transportable raster format.