Tag: ArcGIS 10

Hydro Basemap Gone GLOBAL

by Caitlin Scopel, Cartographic Product Engineer, Esri

World Hydro BasemapThe Hydro Basemap is now the  WORLD Hydro Basemap.  The World Hydro Basemap uses the same design as its predecessor, but extends the coverage to the World at scales of 1:147 million to 1:2.3 million.  The World Hydro Basemap includes the map tiles from the original Hydro Basemap, providing coverage of the United States down to the 1:18,000 scale.

The World Hydro Basemap is comprised of two map service layers: the World Terrain Base, and the World Hydro Reference Overlay.  The World Terrain Base provides the elevation context necessary to understand why the world’s surface water flows where it does.

The World Hydro Reference Overlay provides the streams, waterbodies, drainage areas, and cultural reference information necessary to make the World Hydro Basemap useful for scientists, professionals and researchers in the fields of Hydrology, Geography, Climate, Soils, and other natural sciences related to water.

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Posted in Hydro, Mapping | Tagged , , , , , , , , , , , , , , , , , | 6 Comments

Lodgment Template is available for download

The Lodgment template for ArcGIS 10.0 is available for download from Arcgis.com.

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The mosaic dataset and pixel depth

A mosaic dataset has a pixel depth property.  This can be found in the layer properties of your mosaic dataset. Each item in your mosaic dataset also has its own pixel depth – and they can be different than the pixel depth of the mosaic dataset.
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Posted in Imagery | Tagged , , , | 1 Comment

Editing related records rapidly

The Attributes window allows me to edit the attribute values of selected features and any related features or records in a stand-alone table. In a previous post, I wrote about the enhancements to the Attributes window in ArcGIS 10 and talked about shortcuts for updating the attribute values of features. Now, I am going to focus on using the Attributes window to edit related records, which are linked to a feature class through a geodatabase relationship class. To edit related records, an ArcGIS for Desktop Standard (ArcEditor) or ArcGIS for Desktop Advanced (ArcInfo) license is required.

I have a stand-alone table of landowner information that is related to a parcels feature class. Due to some recent property sales, I need to update the attribute values for the landowner names and percentages owned for some of the parcels. I first select the parcels on the map so the features are listed in the Attributes window. Since the landowner table is related through a relationship class, I can edit the table’s landowner information and establish and remove relationships among parcels and owners in the Attributes window. I can click the Parcels layer name and click the Expand All Relationships In Branch button at the top of the window to show all the nodes in the attributes tree. It’s best to use this on a small set of features since expanding all these relationships could take some time otherwise.

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ArcGIS 10.0 Service Pack 4 (SP4) for English

By Aileen Buckley, Mapping Center Lead

ArcGIS Online web site

ArcGIS 10.0 Service Pack 4 (SP4) for English, is now available to our users for download via the ArcGIS Resource Center. This Service Pack contains performance improvements and maintenance fixes. Here are links to the downloads:

ArcGIS 10 SP4

ArcIMS 10 SP4

ArcSDE 10 SP4

Release Note: ArcGIS 10.0 Service Pack 4 for the other five languages (French, German, Japanese, Simplified Chinese and Spanish) will be released in the next two weeks. A follow up blog entry will be posted to announce the availability once they are ready.

Posted in 3D GIS, Analysis & Geoprocessing, Community Maps, Defense, Developer, Editing, Electric & Gas, Geodata, Hydro, Imagery, Local Government, Mapping, Mobile, National Government, Public Safety, Python, Services, Spatial Statistics, Telecommunications, Water Utilities, Web | Tagged , , , | 21 Comments

Do I need to calculate statistics on a mosaic dataset after a raster function is applied?

Calculating statistics are not always required after you apply a function.  However, there are times when it may be helpful or even required.

When are statistics required?
Color correction requires up-to-date statistics.  Therefore if any functions have been applied to your mosaic dataset, since statistics were last calculated, you will need to calculate them again.

When are statistics a good idea?
Often times when you apply a function, it can change the (virtual) pixel values. If you want to keep your mosaic dataset using the most accurate statistics and rendering, then you will need to calculate statistics again.

For instance, when you use the Stretch function to map your 8-bit data to a 16-bit pixel depth, your images will probably show up black, unless you calculate statistics.

Written by: Simon Woo and Jie Zhang

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ArcGIS for Local Government Partner Specialty Taking Off

Esri is committed to developing a community of partners that are actively implementing and extending ArcGIS for Local Government. To do so, Esri created an ArcGIS for Local Government Partner Specialty, within the Esri Partner Network, to make collaboration with partners repeatable and successful. The specialty is designed for partners focused on the local government marketplace that want to work more closely with Esri on the development and deployment of ArcGIS for Local Government.

Partners in the ArcGIS for Local Government Partner Specialty provide one or both of the following:

  • Complementary applications that are based on the ArcGIS for Local Government solution
  • ArcGIS for Local Government implementation services

Recently, several Esri partners have applied to be part of the Partner Specialty, and we are pleased to announce that we now have a growing network of partners that can assist Esri users to install, configure, and extend ArcGIS for Local Government. In the coming days, you’ll see these approved partners highlighted on the new ArcGIS for Local Government resource center.

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Posted in Local Government, Public Safety, Water Utilities | Tagged , , , , , , , , , , , , , , | Leave a comment

A Model to Filter Images for Build Pyramids and Statistics Tool

In ArcGIS 10.0, we introduced a new raster geoprocessing tool Build Pyramids and Statistics. You can use this tool to build pyramids and calculate statistics for all the raster datasets in a workspace, and even in a raster catalog or a mosaic dataset.

This tool provides a convenient solution to build multiple raster datasets in single step. However it works on all raster datasets in the workspace. Although the tool does not contain a filter option to allow you select a smaller collection of raster among all, we can design a simple model to do this.

This is what the model could look like:
gp_imagery_filter

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Posted in Analysis & Geoprocessing, Imagery | Tagged , , , , , , , | 2 Comments

Mosaicking rasters using the Image Analysis window

Is your mosaic being mosaicked in the proper order when you are using the Image Analysis window?

The Image Analysis mosaicking order is determined by the mosaic operator that you choose, and the order of the rasters in your Table of Contents. The order that you selecthighlight the rasters in the Layer List is not taken into consideration.

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Saving your custom raster type

If you have made any changes to the default raster type, you will probably want to save your changes.  This way you can re-use your custom raster type if you want to load additional raster data with the same properties and functions.

To save your custom raster type, click on the General tab.  At the bottom of this tab, you will see a Save As button.  Click the Save As button, and save it in the location where you keep all your custom raster types.

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