Название | Esri ArcGIS Desktop Professional Certification Study Guide |
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Автор произведения | Mike Flanagan |
Жанр | Программы |
Серия | |
Издательство | Программы |
Год выпуска | 0 |
isbn | 9781589485365 |
Prepare
These topics in the documentation provide details about managing high-resolution point data.
Gain a thorough understanding of these ArcGIS Pro Help topics:
Help > Data > Data types > Lidar and LAS dataset >What is a LAS dataset?The LAS dataset layer in ArcGIS Pro
Help > Data > Data types > Terrain datasets (and all subtopics)
Gain a thorough understanding of these ArcMap Help topics:
Manage Data > Data types > LAS dataset > What is a LAS dataset?
Mosaic datasets
ArcGIS allows you to organize, store, and manage raster data as a raster dataset, a mosaic dataset, or a raster catalog. Of these options, a mosaic dataset is the recommended data model for most use cases. Mosaic datasets are stored in geodatabases; they consist of a collection of raster datasets stored as a catalog; the participating raster datasets can be viewed as a single mosaicked image or as individual images. All mosaic dataset data is referenced from its original storage location, so data can remain in its original format and is not restricted by the different projections, resolutions, pixel depths, or numbers of bands that exist. Mosaic datasets support processing on the fly using raster functions and provide support for LAS datasets. Adding LAS datasets to your mosaic dataset allows you to use 3D Analyst tools, such as the Slope tool or the Viewshed tool, and gives you the ability to use your lidar data as a DEM.
You can create mosaic datasets in ArcGIS using the Create Mosaic Dataset and Create Referenced Mosaic Dataset tools. The Create Mosaic Dataset tool allows you to add your own data and to modify data properties and functions on a per-raster basis. For example, you can use the product definition property to create custom product definitions that define the number of bands, band order, and wavelength ranges of imagery collected by various satellite imagery platforms. The Create Referenced Mosaic Dataset tool creates read-only mosaics that reference existing mosaic datasets or raster catalogs. After you have created a mosaic dataset, you can add rasters to it using the Add Rasters To Mosaic Dataset tool and specifying the Raster Type parameter. Doing so enables the software to recognize and define any processing that needs to be applied before you add the data to the mosaic dataset.
Prepare
These topics in the documentation provide details about mosaic datasets.
Gain a thorough understanding of these ArcGIS Pro Help topics:
Help > Data > Data types > Imagery and raster > Image management >Mosaic datasetsRaster products and raster types
Help > Data > Data types > Imagery and raster > Multidimensional >An overview of multidimensional raster dataAn overview of multidimensional data in a mosaic dataset
Help > Data > Data types > Imagery and raster > Workflows > Create a mosaic dataset
Tool Reference > Tools > Data Management toolbox > Raster toolset > Mosaic Dataset toolset >Add Rasters To Mosaic DatasetCreate Mosaic DatasetCreate Referenced Mosaic Dataset
Gain a thorough understanding of these ArcMap Help topics:
Manage data > Data types > Raster and images > Introduction > Essential raster data vocabulary
Manage data > Data types > Raster and images > Supported raster data > Multidimensional raster types
Tools > Tool reference > Data Management toolbox > Raster toolset > Mosaic Dataset toolset >Add Rasters To Mosaic DatasetCreate Mosaic DatasetCreate Referenced Mosaic Dataset
Practice