A Grid Dataset represents a section of a 2D Grid. A 2D grid consists of regularly spaced rows and columns of numeric values. Usually the value is an elevation.
Fixed Extent: By default the dataset extent is identical to the current scene extent. However, this option makes it is possible to fix the extent to any area.
Extent: Defines a rectangular area where data are extracted from the source.
Grids datasets read directly from a File Source do not require any configuration. Supported file formats include:
Surfer Grid File Format
ArcInfo ASCII Grid File Format
Vertical Mapper Grid File Format
A single grid from an Access Database Source in Model Database format. When this source type is used the following configuration is required.
Model ID: ID for the model
Grid ID: ID for the grid within the model with ModelID
Band Number: Band number for the grid selected with grid ID. Note: Each grid may contain multiple bands (or layers). Each of these bands can be used as a grid dataset.
A single grid time step from a DHI File Source (dfs). Files may be dfs2 or dfs3 that are both sub types of the DHI File System format. The dataset is configured to point to one of the time steps in the file. For dfs3 files a layer must also be selected.
The top portion of the configuration dialog shows the number of time steps in the file and the time period covered in the file.
Step Index: The index of the grid time step in the file (first index is 0).
Date: Date for the time step. Note: setting the date is just another way of selecting the time step.
Time: Time for the time step. Note: setting the time is just another way of selecting the time step.
Item: Selects the dfs file item.
Layer: Selects the layer index in the item (first layer is 1). Layer is selected in dfs3 files only.
A single grid file ( Surfer Grid Files or ArcInfo ASCII Grid Files ) from a Grid Time Series where the source is a group of grid files. See Grid Time Series Dataset.
The top portion of the configuration dialog shows the number of time steps in the file and the time period covered in the file.
Step Index: The index of the grid time step in the file (first index is 0).
Date: Date for the time step. Note: setting the date is just another way of selecting the time step.
Time: Time for the timestep. Note: setting the time is just another way of selecting the time step.
A single grid from a geocloud_source. The grid is extracted from the GeoCloud service via the internet.