Extended Tools In 3D Visualization_book 6

20 Questions | Total Attempts: 66

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3D data ypes, display, and visualization Data aquisition and Processing Coverting 2d to 3D Displaying non elevation data in 3D Surface Analysis Global Visualization and Analysis Animation and Exporting Projects


Questions and Answers
  • 1. 
     The ArcGIS extension program that is designed to display elevation and other data layers that have Z values associated with the features is called
    • A. 

      3D Analyst

    • B. 

      ArcToolbox

    • C. 

      Image Analysis

    • D. 

      Spatial Analyst

  • 2. 
     The ArcGIS program used to view three-dimensional data with 3D Analyst is called
    • A. 

      ArcMap

    • B. 

      ArcScene

    • C. 

      ArcToolbox

    • D. 

      Explorer

  • 3. 
     The option included in Scene Properties that allows you to amplify the variations in elevation of a surface to make the variation more noticeable is called
    • A. 

      Amplification

    • B. 

      Augmentation

    • C. 

      Extending

    • D. 

      Vertical Exaggeration

  • 4. 
     A data format that displays elevation data using nodes, lines and faces is called
    • A. 

      Grid

    • B. 

      Raster

    • C. 

      Terrestrial Integrated Network

    • D. 

      Triangulated Irregular Network

  • 5. 
     The most common type of elevation data used in 3D display and analysis is  
    • A. 

      DEMs

    • B. 

      TINs

    • C. 

      Nodes

    • D. 

      GECs

  • 6. 
     The option that allows you to “pull” features up to a certain height in a 3D scene by assigning a Z value in Layer Properties is called
    • A. 

      Animation

    • B. 

      Extrusion

    • C. 

      Projection

    • D. 

      Scaling

  • 7. 
     Feature data layers that have Z values (height or elevation) included in their attributes are called
    • A. 

      2D Shapefiles

    • B. 

      3D Shapefiles

    • C. 

      Contours

    • D. 

      TINs

  • 8. 
     The interpolation method that selects the closest nodes that form a convex hull around the interpolation point and then weights their values by the proportionate area is called
    • A. 

      Inverse Distance Weighted Method

    • B. 

      Kriging Method

    • C. 

      Spline Method

    • D. 

      Natural Neighbors Method

  • 9. 
     Lines created that represent elevation by connecting points with the same elevation values are called
    • A. 

      Contours

    • B. 

      Hillshades

    • C. 

      Projections

    • D. 

      Slopes

  • 10. 
     The incline of a surface is called
    • A. 

      Contour

    • B. 

      Hillshade

    • C. 

      Projection

    • D. 

      Slope

  • 11. 
     The direction of the slope of a surface is called
    • A. 

      Aspect

    • B. 

      Hillshade

    • C. 

      Projection

    • D. 

      Slope

  • 12. 
     The appearance of three-dimensional relief created by applying the effect of a light source is called
    • A. 

      Contour

    • B. 

      Hillshade

    • C. 

      Projection

    • D. 

      Slope

  • 13. 
    In ArcGlobe, the type of layer that is laid over the elevation layer and provides visual enhancement to the display is called a 
    • A. 

      Floating layer

    • B. 

      Draped layer

    • C. 

      Elevation layer

    • D. 

      Suspended layer

  • 14. 
     In ArcGlobe, the type of layer that provides terrain to the global surface is the  
    • A. 

      Floating layer

    • B. 

      Draped layer

    • C. 

      Elevation layer

    • D. 

      Suspended layer

  • 15. 
     Which of the following 3D Analyst conversion options would be used to convert grid data to a TIN?
    • A. 

      3D Shapefile to TIN

    • B. 

      Create TIN from Features

    • C. 

      Raster to TIN

    • D. 

      TIN to Raster

  • 16. 
    Which of the following 3D Analyst conversion options would be used to convert elevation point data to a TIN? 
    • A. 

      3D Shapefile to TIN

    • B. 

      Create TIN from Features

    • C. 

      Raster to TIN

    • D. 

      TIN to Raster

  • 17. 
     If you were draping an air photo and feature data layers on a 3D surface in ArcScene, what would you assign as the Base Height?
    • A. 

      Air photo

    • B. 

      Feature data layer

    • C. 

      Nothing

    • D. 

      TIN

  • 18. 
     Which of the following would be the best example of an extrudable shapefile that could be viewed using 3D Analyst?
    • A. 

      Air photo

    • B. 

      Light poles

    • C. 

      Parking lot

    • D. 

      Sidewalk

  • 19. 
     TINs differ from 3D shapefiles because
    • A. 

      3D shapefiles represent features three-dimensionally and a TIN represents a surface three-dimensionally.

    • B. 

      TINs represent features three-dimensionally and 3D shapefiles represent a surface three-dimensionally.

    • C. 

      3D shapefiles cannot be displayed in ArcScene but TINs can.

    • D. 

      TINs cannot be displayed in ArcScene but 3D shapefiles can.

  • 20. 
     2D shapefiles differ from 3D shapefiles because
    • A. 

      2D shapefiles cannot be displayed in ArcScene.

    • B. 

      2D shapefiles cannot be draped on a TIN surface

    • C. 

      3D shapefiles have a Z value (height or elevation) associated with them.

    • D. 

      2D shapefiles have a Z value (height or elevation) associated with them.

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