Tag Archives: Raster
How does a mosaic dataset handle rasters in different projections?
The spatial reference of a mosaic dataset is specified when you create it (using the Create Mosaic Dataset tool). This spatial reference is used to manage all of the data that is ingested into your mosaic dataset. As always, re-projections … Continue reading
How do I persist the processing outputs that were created using the Image Analysis window?
There are several ways to persist your Image Analysis results.
DigitalGlobe Imagery for the United States and Western Europe added to the World Imagery map
It’s time to clear your cache. Yesterday we added over 50 terabytes of new imagery from DigitalGlobe to the World Imagery map. This release includes 30cm imagery for the continental United States and 60cm imagery for large parts of Western Europe. This greatly … Continue reading
Managing categorical rasters in ArcGIS Workflow
Categorical raster management has been greatly enhanced at ArcGIS 10.1. Multiple rasters that have the same classification scheme can be ingested in a mosaic dataset, share one attribute table and colormap, can be published as a single image service, and … Continue reading
Should I cache my mosaic dataset?
Whether you build cache or not, mainly depends on how you will use the mosaic dataset. If you are going to serve out your imagery collection for non-analytical purposes or as a backdrop, then creating cache is recommended. This applies … Continue reading
Is your mosaic dataset inflating your file geodatabase? Shrink it.
Does your mosaic dataset have a lot of images (ten or hundreds of thousands)? Are you using a 10.0 file geodatabase to manage your mosaic dataset? Do you make frequent and massive data transactions and manipulations? If you answered “yes” … Continue reading
Updated Landsat Shaded basemap
By fusing the World Elevation services with the World Landsat services, we’ve created a uniquely beautiful representation of the Landsat data – the Landsat Shaded Basemap. What are the features of this extraordinary service? - This image service uses 8000+ … Continue reading
High-resolution imagery for South America, Australia, New Zealand, and Afghanistan added to ArcGIS Online World Imagery Map
We’re happy to report that the final batch of the large set (up to 50 million square kilometers) of high-resolution imagery to be added to the World Imagery map service is fully processed and published to ArcGIS Online. The World … Continue reading
Should I build pyramids or overviews?
This is a very common question that many users ask. First let’s take a look at what each of these, and when they are needed. Pyramids Pyramids are reduced resolution datasets. They let you perform dynamic mosaicking and on-the-fly processing … Continue reading
Free LTS Recording – Working with Imagery at ArcGIS 10.1
On October 11th, Cody Benkleman and Vinay Viswambharan broadcasted a Live Training Seminar about Working with Imagery at ArcGIS 10.1. This broadcast has been recorded and is now available to view. You can view the presentation for free, as long … Continue reading
