Dataset Parameters
Feature Type Name
This parameter allows you to choose different naming schemes for a feature type, and the number of feature types generated for the reader.
The Feature Type Name changes, depending on the selection.
| Value | Feature Type Name | Example |
|---|---|---|
|
From Format Name |
<reader_type_name> |
FORMAT_NAME |
|
From File Name |
<filename> |
file |
|
From Subdataset Name |
<subdataset_name> |
subdataset |
|
From File Name and Subdataset Name |
<filename_subdataset_name> |
file_subdataset |
Note: Some formats have an option for Scientific Dataset Name in place of the Subdataset Name. Examples for these formats are shown in the following table:
| Value |
Feature Type Name |
Example |
|---|---|---|
|
From Format Name |
<format_name> |
HDF4_ASTER |
|
From File Name |
<filename> |
CURRENT_DHW |
|
From Scientific Dataset Name |
<scientific_dataset_name> |
[331X720]_ SURFACE_FLAG__8_BIT_UNSIGNED_ INTEGER |
|
From File Name and Scientific Dataset Name |
<filename_scientific_dataset_name> |
CURRENT_DHW_ [331X720]_ SURFACE_FLAG__8_BIT_UNSIGNED_ INTEGER |
Schema Attributes
Additional Attributes to Expose
Use this parameter to expose Format Attributes in Workbench when you create a workspace:
- In a dynamic scenario, it means these attributes can be passed to the output dataset at runtime.
- In a non-dynamic scenario, you can use this parameter to expose additional attributes on multiple feature types.
Use Search Envelope
Using the minimum and maximum x and y parameters, define a bounding box that will be used to filter the input features. Only features that intersect with the bounding box are returned.
If all four coordinates of the search envelope are specified as 0, the search envelope will be disabled.
Clip to Search Envelope
When selected, this parameter removes any portions of imported features being read that are outside the Search Envelope.
The example below illustrates the results of the Search Envelope when Clip to Search Envelope is not selected (set to No) and when it is selected (set to Yes).
- No: Any features that cross the search envelope boundary will be read, including the portion that lies outside of the boundary.
- Yes: Any features that cross the search envelope boundary will be clipped at the boundary, and only the portion that lies inside the boundary will be read. The underlying function for the Clip to Search Envelope function is an intersection; however, when Clip to Search Envelope is selected, a clipping operation is also performed in addition to the intersection.
Advanced
Pyramid Level to Read
When a TIFF file contains pyramids (reduced-resolution images), this parameter specifies the pyramid level to read.
Pyramid level 0 represents the original raster data. Values greater than 0 represent a reduced-resolution image.
Note that the TIFF format does not guarantee that the levels are ordered. For example, pyramid level 2 may have more rows or columns than pyramid level 1, or vice versa.