Zone Output

Feature Description

Map projection zoning divides the Earth's surface into multiple zones based on specific longitude or latitude intervals, with each zone employing a suitable projection type to minimize distortion. For large geographical areas, different projection zones can more accurately represent the true shape and position of features, thereby enhancing the accuracy of spatial analysis.

In GIS (Geographic Information Systems) and remote sensing applications, precise geolocation representation of remote sensing imagery is crucial for scenarios like topographic mapping, resource surveys, environmental monitoring, and disaster assessment. To ensure geolocation accuracy and minimize image distortion, it's essential to select appropriate zoned projection coordinate systems based on the actual coverage of imagery.

Traditional methods rely on manual operations, requiring users to manually select and group image data according to different projection zones before processing each group sequentially. This approach is inefficient, limits data processing speed and scale, and is prone to human errors.

To address these challenges, the Zone Output feature is provided. This functionality automatically calculates the projection zone containing image center points and performs batch processing and output accordingly, significantly improving workflow efficiency while effectively reducing human error rates.

Applicable only to projected coordinate systems supporting zoning in Universal Transverse Mercator (WGS 1984) and Gauss-Kruger (CGCS 2000).

SuperMap ImageX Pro 2025 and later versions support this feature.

Feature Entry

Toolbox->Imagery->Basic Tools->Zone Output.

Parameter Description

Parameter Description Type
Data Type

Select the source type for image data requiring zone output. Two options are available: Local File and Mosaic Dataset.

  • Local File: Specify the local folder path containing imagery. All images in this folder and its subfolders will undergo zone output processing.
  • Mosaic Dataset: Select a mosaic dataset from the current workspace. All images in the mosaic dataset will be processed for zone output.
 Datasource
Output Coordinate System Select the coordinate system for output results. For zone output functionality, choose projected coordinate systems supporting zoning in Universal Transverse Mercator (WGS 1984) or Gauss-Kruger (CGCS 2000). For other coordinate systems, only coordinate conversion will be performed without zoning processing. String
Zone Output

Specify whether to perform zonal output. This checkbox becomes available when using projected coordinate systems supporting zoning in Universal Transverse Mercator (WGS 1984) and Gauss-Kruger (CGCS 2000).

  • Enabled: Outputs images to different zones with corresponding projected coordinate systems.
  • Disabled: All images will use the unified projected coordinate system specified in coordinate system settings.
 Boolean
Export Directory

Specify the output path for zonal results. Images will be organized in subfolders named using these conventions:

  • Universal Transverse Mercator (WGS 1984): Abbreviation_Zone_NumberWithHemisphere (e.g., "UTM_Zone_4S")
  • Gauss-Kruger (CGCS 2000): Abbreviation_ZoningMethod_Zone_NumberWithHemisphere (e.g., "GK_3D_Zone_7N")
 String

Output

Projection-transformed images are stored in corresponding coordinate system folders.

Related Topics

Cloud Removal

Band Arithmetic