Using ArcCatalog

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Setting a nongrid raster dataset’s coordinate system 1. Right-click the raster dataset and click Properties. 2. In the Properties dialog box, scroll to the Spatial Reference information. 3. Click the Edit button. 4. In the Spatial Reference Properties dialog box, click Select to choose a predefined coordinate system. Or click Import to match the coordinate system of another data source. Or click New to define a new, custom coordinate system. Or click modify to change the current coordinate system’s properties. 5. Browse the dialog box to choose the projection that is required for your raster dataset. You will need to open up several folders before you can choose your correct projection. 6. Click Add. 7. Click OK in the Spatial Reference Properties dialog box. 8. Click OK in the Raster Dataset Properties dialog box. 4 7 8 3 226 USING ARCCATALOG
Creating raster dataset pyramids The amount of detail you see when drawing a raster dataset depends on its cell size. When each cell covers a small area to maintain detail, many cells are required to cover a large region; therefore a raster dataset can be very large, occupying a lot of space on disk and taking a long time to draw. To avoid this problem, you can create pyramids. Pyramids are a set of reduced resolution datasets that are created for a source raster dataset. Each successive layer of the pyramid is downsampled at a scale of 4:1. With pyramids, the coarsest level of resolution displays quickly when drawing the entire dataset. As you zoom in, levels with finer resolutions are drawn; performance is maintained because you’re drawing successively smaller regions from the previously resampled data. Without pyramids, the entire dataset must be examined before the appropriate subset of cells can be displayed. On building pyramids, a Reduced Resolution Dataset (.rrd) file is created. For an uncompressed raster dataset, this file is approximately 8 percent of the original raster dataset file size. u Building pyramids in <strong>ArcCatalog</strong> 1. Right-click the raster dataset in the Catalog tree. 2. Click Build Pyramids. 3. Navigate to the raster dataset you would like to build pyramids for, if it is not already selected. 4. Click Ok. 4 2 3 WORKING WITH RASTERS 227
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ArcGIS® 9 Using ArcCatalog
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Contents 1 Introducing ArcCatalog 1
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Finding values in a table 116 Addin
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15 Customizing ArcCatalog 233 Basic
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What can you do with ArcCatalog? Af
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Search for maps and data If you kno
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Tips on learning ArcCatalog This bo
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Exercise 1: Building a catalog of g
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When the Catalog already contains a
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Exercise 2: Exploring data and addi
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13. Click the tin_study TIN dataset
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coverage’s polygon feature class
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9. Right-click the heading of the T
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5. Click the Stylesheet dropdown ar
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5. In the ArcMap window, click the
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1. Click the feature mask layer in
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With this search, ArcCatalog will l
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3. When the study area fills the St
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9. Click OK. A shapefile’s coordi
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2. Click OK to start using ArcMap w
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The Attribute tab currently shows m
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20. Click the Color Ramp dropdown a
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Starting ArcCatalog Starting ArcCat
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Browsing through the Catalog Browsi
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When browsing through a long list o
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Hiding and showing the Catalog tree
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times, allowing you to keep track o
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Tip Searching for words within a to
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What’s in the Catalog? 4 IN THIS
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Maps, layers, and graphs You can ac
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Coverages and INFO tables Coverages
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Personal geodatabases let you manag
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Raster datasets contain a rectangul
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CAD drawings You can access CAD dra
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SDC data ArcCatalog provides read-o
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Address locators An address locator
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ArcGIS servers The GIS Servers fold
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Coordinate systems There are two ty
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Building the Catalog 5 IN THIS CHAP
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Adding spatial database connections
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Adding OLE DB connections 1. Double
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Tip Working with GIS servers You wo
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username or password isn’t saved
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Hiding folders and items 1. Click t
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tab in the Options dialog box. If y
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Tip Editing a file type Edit the pr
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Viewing an item’s contents In the
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Working in Details view Sometimes y
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Changing the columns you see When y
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its short name as defined in the CS
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Organizing your data With ArcCatalo
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Converting data to a different form
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Previewing an item’s geographic d
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you decide whether or not you’ve
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Tip Seeing the entire dataset After
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Creating thumbnails 1. In the Catal
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Previewing the values in a table Th
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columns remain fixed. Freezing a ta
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Tip Rearranging frozen columns Afte
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Sorting records in a table Sorting
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Finding values in a table Occasiona
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Adding and deleting columns When ex
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Creating new data sources from the
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9. Click the Save as type dropdown
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Exploring an item’s metadata The
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Metadata for folders While metadata
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Creating and updating metadata By d
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Importing and exporting metadata Im
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Writing documentation Automatically
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Editing metadata Two metadata edito
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which entry is currently displayed.
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Adding enclosures Documentation suc
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Requirements for publishing to an A
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esources describing barracks, train
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Preparing metadata for publication
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FGDC and ISO metadata elements. If
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loaded into the database as the doc
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Managing published documents Once a
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Creating relationships between docu
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Searching for items Defining the na
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Searching with geographic criteria
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Searching with temporal criteria Th
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Defining a general range of time 1
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Exploring the results of your searc
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Selecting a shortcut’s original i
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Opening a map Opening an existing m
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Creating layers It takes time to an
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Creating a layer from the data 1. R
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Creating a group layer from the dat
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data using this method. However, if
Page 184 and 185: Joining attributes using a relation
Page 186 and 187: Creating new shapefiles and dBASE t
Page 188 and 189: Adding and deleting attributes Addi
Page 190 and 191: Creating and updating indexes With
Page 192 and 193: Defining a shapefile’s coordinate
Page 194 and 195: 2. Navigate to the coordinate syste
Page 196 and 197: Tip Modifying default parameters Wh
Page 198 and 199: Modifying a coordinate system’s p
Page 200 and 201: ArcInfo and ArcEditor Creating a ne
Page 202 and 203: ArcInfo and ArcEditor Generating to
Page 204 and 205: ArcInfo and ArcEditor Defining a co
Page 206 and 207: ArcInfo and ArcEditor Defining a co
Page 208 and 209: ArcInfo and ArcEditor Modifying a c
Page 210 and 211: ArcInfo and ArcEditor Recalculating
Page 212 and 213: ArcInfo and ArcEditor Maintaining a
Page 214 and 215: ArcInfo and ArcEditor Adding a rede
Page 216 and 217: ArcInfo and ArcEditor Deleting an a
Page 218 and 219: ArcInfo and ArcEditor What is a rel
Page 220 and 221: ArcInfo and ArcEditor Creating a co
Page 222 and 223: ArcInfo and ArcEditor 13. Click the
Page 224 and 225: Raster dataset properties A raster
Page 226 and 227: When you select a geodatabase raste
Page 228 and 229: Changing raster dataset previewing
Page 230 and 231: Not all raster datasets have file e
Page 232 and 233: or a TIN. If the raster dataset alr
Page 236 and 237: You cannot build pyramids on a rast
Page 238 and 239: Additional raster dataset file info
Page 241 and 242: Customizing ArcCatalog 15 IN THIS C
Page 243 and 244: Customizing toolbars Hiding and sho
Page 245 and 246: Displaying toolbars with large icon
Page 247 and 248: Tip Creating access keys All menus
Page 249 and 250: Tip Why open the Customize dialog b
Page 251 and 252: Changing a command’s appearance G
Page 253 and 254: Changing the caption 1. Show the to
Page 255 and 256: Removing a shortcut key 1. Click th
Page 257 and 258: window. To add your macro to a spec
Page 259 and 260: Creating custom commands with VBA A
Page 261 and 262: Working with UIControls If you crea
Page 263 and 264: Updating the ArcID module 1. Click
Page 265: Using the ArcObjects Developer Help
Page 268 and 269: ArcStorm database An ArcStorm datab
Page 270 and 271: command 1. An instruction to a comp
Page 272 and 273: datum In the most general sense, an
Page 274 and 275: feature class A collection of geogr
Page 276 and 277: Geospatial Data Clearinghouse A dec
Page 278 and 279: layout view In ArcMap and ArcReader
Page 280 and 281: overshoot The portion of an arc dig
Page 282 and 283: aster A spatial data model that def
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shapefile A vector data storage for
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updated automatically; they will go
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VPF feature class See feature class
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Index Symbols .rrd files 231 A Acce
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Content Theme (continued) categorie
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Feature classes. See also data sour
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J Joins 35, 174-175, 175, 176. See
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R Raster. See also data sources ban
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Tolerances (continued) fuzzy 195, 2
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