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Thelma A. Cinco Senior Weather Specialist ,PAGASA Philippines

Thelma A. Cinco Senior Weather Specialist ,PAGASA Philippines. Introduction to Arcview 3.2. Resource Person. LECTURE BY: Ernestine B. Gayban, namria. ArcView Basics. Tool for presenting information Visualize, explore, query, and analyze data geographically Create and edit data Create maps.

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Thelma A. Cinco Senior Weather Specialist ,PAGASA Philippines

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  1. Thelma A. CincoSenior Weather Specialist ,PAGASAPhilippines Introduction to Arcview 3.2 Resource Person LECTURE BY: Ernestine B. Gayban, namria

  2. ArcView Basics • Tool for presenting information • Visualize, explore, query, and analyze data geographically • Create and edit data • Create maps

  3. Menu Bar Button Bar Project window Tool bar View window Table window Status bar The ArcView Interface

  4. Project window Arcview Projects • contains Arcview documents • manages how and where documents are displayed • is stored in a project file (.apr)

  5. View Tables Charts Layout Scripts ArcView Documents

  6. Views and Themes • Projects can contain many views • a view manages the display of geographic information • a view displays geographic information in a theme • themes represent features as points, lines, or polygons • views display themes from many data sources

  7. Map display Themes Table of Contents

  8. Common theme operations • making themes active (raised) • turning themes on and off • changing the display order (by dragging)

  9. Point marker Linestyle Polygon fill pattern Theme feature types

  10. Open a project (new or existing) • The new view is listed in the project window • Create a new view document Creating a view

  11. Spatial data sources • Arcview shapefiles • Arc/Info coverages • CAD drawings • data from Spatial Data Engine • image data • tabular data

  12. Add Theme button • Select data sources • New themes added to view Adding a feature theme

  13. Additional data sources for themes • Image data • Tabular data • - data from SQL databases (e.g. Access, Oracle) • - dBase files • - INFO tables • - text files

  14. Select data sources • Image theme added to view Adding an image theme to a view • Add Theme button

  15. Saving a project • Saves your work on any project • Updates the project (.apr) file with the current • project name • window position • feature selection • theme display

  16. Thematic mapping with the Legend Editor • choose a legend type • choose a classification • add descriptive legend text • change symbology

  17. Legend Editor

  18. Legend types

  19. Legend types

  20. Legend types

  21. Changing symbols with the Symbol window

  22. Modifying legend elements • Sort values and labels • Flip symbols • Ramp colors • Undo changes

  23. Working with null values • Values you do not want to use in classification • Values that indicate no data is available • Examples of null values: -99, 0, blank, none

  24. Managing theme display with theme properties • Define a theme subset • Label theme features • Set scale thresholds for displaying themes • Create Hotlinks to theme features • Lock theme properties

  25. Subset of theme features - RHU • All theme features • Build an expression to define a subset Defining a theme subset

  26. Set a range of scales for displaying a theme Scale denominator = 350,000 Scale denominator = 500,000 Setting a scale threshold

  27. Labeling theme features • Select a field for labeling features • Label one feature • Label all features

  28. Using Auto-label • Find best placement for text • Manage overlapping and duplicate labels • Place labels only in the current view

  29. Hotlink tool Hotlinking theme features • Image • Text file • Document • Project • Script

  30. Creating hot links • Select a field and an action

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