Processing Properties

ERDAS IMAGINE Help

HGD_Variant
16.5.1
HGD_Product
ERDAS IMAGINE
HGD_Portfolio_Suite
Producer

The Processing Properties ribbon button and dialog have been deprecated.

When you create a new model in Spatial Model Editor, Processing Properties on the ribbon is disabled. When you open a model created in earlier versions of Spatial Modeler, or open a GMD file from the Legacy Spatial Modeler, the Processing Properties button on the ribbon is enabled. However, most of the options in the Processing Properties dialog are disabled, so they cannot be changed. These older models will continue to run as they did in earlier versions without making any changes.

To set or change the Grid / Cell Size, Window, or Projection, use the Define Processing Area operator. To transfer these settings from an older model to a Define Processing Area operator, use the To Operator button. The options transfered to the new operator will not be observed until the Clear button is clicked. Until the Clear button is clicked, all options shown in the Processing Properties dialog continue to be observed, and all options in any Define Processing Area operators in the model are ignored.

To set an Area of Interest, use the Apply AOI operator, or set an AOI on the Raster Input operator.

To set Operator Info or model info, use the Operator Info Panel.

The processing properties do not affect any of the Point Cloud operators.

Buttons

To Operator    Click to transfer the Grid / Cell Size, Window & Projection options from the Processing Properties dialog to a Define Processing Area operator. The new operator will be placed in the current model. The options in the new operator will not be observed until the processing properties are cleared. Also, the new operator will need to be connected to inputs and / or outputs for the options to be observed.

Clear Clear all processing properties, close the dialog, and disable the Processing Properties button on the ribbon. To retain any current options, click the To Operator button before clearing.

Cancel    Click to close this dialog without making any changes.

Help    Click to open this On-Line Help document.

See the examples for the Map X operator, which demonstrate the use of To Operator, Clear, and connecting the Define Processing Area operator

All of the options below cannot be changed. They are for reference only. To change these options, use the Define Processing Area operator.

Grid/Cell Size

Grid Rule: Grid constraints simultaneously set the cell size and position of pixel centers of Raster Outputs.

Let grid be defined by cell size and window    If no grid constraints is used; the cell size will be set independently, and pixel centers will be placed automatically.

Match an existing raster    Exactly match the cell size and pixel positioning of an existing image. If your select this option, the Cell Size Rule is grayed out, and no changes can be made.

Raster     When selecting the option to match an existing raster, choose a raster resolution from the following list.

Highest resolution input in model Match the highest resolution Raster Input in the model.

Lowest resolution input in model Match the lowest resolution Raster Input in the model.

Highest resolution parent input Each operator uses the grid of its highest resolution input.

Lowest resolution parent input Each operator uses the grid of its lowest resolution input.

Same as input    Match the grid of a particular Raster Input in the model.

Input Select which of the existing Raster Inputs you want to match.

File    Select this option to choose a file outside of the model to match.

File name (*.img)    Click the File Folder filesselect and navigate to the file you want to use.

Align output origin to point    Set the point information for grid size.

X:    Select the X grid size of the output layer.

Y:    Select the Y grid size of the output layer.

Units:    Click on the dropdown list button to select the units of the X and Y grid size.

Center of Cell: Align the center (not the corner) of the cell to the specified point.

Upper-left corner of cell: Align the upper-left corner (not the center) of the cell to the specified point.

Cell Size Rule:    This option allows you to specify the cell size of the output layer. se_default.png Click to set the default Cell Size Rule.

Minimum of all inputs in model    Match the cell size of the highest resolution Raster Input in the model.

Maximum of all inputs in model   Match the cell size of the lowest resolution Raster Input in the model.

Minimum of Parent Operators    Each operator matches the cell size of its highest resolution input.

Maximum of Parent Operators    Each operator matches the cell size of its lowest resolution input.

Same as input    Match the cell size of a particular Raster Input in the model.

Input Select which of the existing Raster Inputs you want to match.

Specify    Specify a particular cell size for Raster Outputs.

Width    Specify the width of the cell.

Height    Specify the height of the cell.

Units:    Click on the dropdown list button to select the units of the width and height cell size. This option is disabled unless Specify is selected under Cell Size.

Square Pixels    If this box is checked, it forces the pixels to be square. se_default.png Click to set the default for square pixels.

Window

Window Rule:    Click on the dropdown list button to select how Spatial Modeler determines the geographic extents to use for raster processing. se_default.png Click to set the default window rule.

Union of all inputs in model    Use the union area of all Raster Inputs in the model.

Intersection of all inputs in model    Use only the intersection area of all Raster Inputs in the model.

Union of parent inputs Each operator uses the union area of all its inputs.

Intersection of parent inputs Each operator uses only the intersection area of all its inputs.

Same as input     Use the same extents as a particular Raster Input.

Input Select which of the existing Raster Inputs you want to match.

Specify  Select a particular region in map or file coordinates for Raster Outputs. If this option is selected, you must enter the coordinates below.

Use file for map extent    Match the extents of an existing raster file.

File Name    Navigate a browser and select a file.

Map    Click to use map coordinates.

File    Click to use file coordinates: pixels starting with 0,0 in the upper-left corner.

From Inquire Box: Click to define a subset area of the data by using the Inquire Box. When you click this button, the coordinates below are updated with the coordinates of the cursor box in the 2D View.

To change these coordinates, you can move and/or resize the cursor box in the 2D View, and then click this button again.

The image you are using and the inquire box must already be displayed in a 2D View in order to use the From Inquire Box option. Otherwise, you may manually enter coordinates in the fields below.

ULX:    Upper-left X coordinate.

ULY:    Upper-left Y coordinate.

LRY: Lower-right X coordinate.

LRY    Lower-right Y coordinate.

Based on:

Center of cell    Extents will be calculated and applied based on the coordinates of pixel centers.

Edges of cell    Extents will be reckoned by pixel edges, rather than centers.

Projection

Projection Rule:

Best Guess of Parents Each operator chooses its output projection based on the projections of its inputs (usually choosing the projection of the first input).

Same As input    Use the projection of a particular Raster Input.

This cannot be used unless the inputs are defined.

Input Select which of the existing Raster Inputs you want to match.

From Library:    Select a particular projection from the Projection Chooser library.

Projection:    Select projection from library.

globe    Click this button to create a new named projection. The Projection Chooser dialog opens with the current Output Projection selected. Make your changes and then press the Save... button to save the new projection as a named item in a projection category. Once the category is saved, press OK on the projection chooser dialog to use the newly created projection.