Question 1

Describe the steps involved with designing a 3D structure in SketchUp and then placing it into its correct location in Google Earth.

Accepted Answer

In SketchUp,you can first acquire a &#34;snapshot&#34; of aerial imagery to use as a base for modeling a real-world structure.This &#34;snapshot&#34; will contain information that can be used to reference the model into its real-world coordinates.After creating the structure with SketchUp,it is exported to a KMZ file and placed into its proper spatial location in Google Earth.

Question 2

Pre-made 3D objects in SketchUp refer to&#10;A)components.&#10;B)prisms.&#10;C)georeferences.&#10;D)faces.

Accepted Answer

In SketchUp, pre-made 3D objects are referred to as components. Components are stored in a separate library and can be easily added to a model, making it easier for users to create complex designs. Prisms, georeferences, and faces are not terms commonly used to refer to pre-made 3D objects in SketchUp.

Question 3

A 3D-style choropleth map is a(n)&#10;A)prism map.&#10;B)smartmap.&#10;C)raised poly map.&#10;D)omni-theme map.

Accepted Answer

A 3D-style choropleth map is commonly referred to as a prism map due to the prism-like appearance of its shape. The other choices (smartmap, raised poly map, and omni-theme map) do not accurately describe this type of map.

Question 4

Viewing an image that is offset in both the color red and the color blue that enables a &#34;3D&#34; style effect is an example of&#10;A)anaglyph.&#10;B)GeoWall.&#10;C)stereovision.&#10;D)CityEngine.

Accepted Answer

Anaglyph is a method of creating a 3D-style effect by superimposing two offset images, one in red and one in blue, and viewing them through anaglyph glasses with red and blue lenses. This creates the illusion of depth and spatial relationships between objects in the image. GeoWall is a system for displaying stereoscopic images, while stereovision is a broader term for any method of creating a 3D effect through the presentation of two overlapping images. CityEngine is a software tool for creating 3D models of urban environments.

Question 5

Which of the following operations would best allow you to place 3D buildings at their proper height on the terrain (e.g. ,the terrain is 900 ft above sea level,you want the building to sit on the terrain,not float above or below it)?

A)Extrusion
B)Offsetting
C)Applying base heights
D)Vertical exaggeration

Accepted Answer

Applying base heights will allow the user to input the specific height above sea level at which the building should sit on the terrain, ensuring it is not floating above or below it. Extrusion and offsetting are both used to create 3D geometry but do not directly relate to the placement of the buildings on the terrain. Vertical exaggeration is used to increase the vertical scale of the relief in order to emphasize the terrain's features but does not provide the necessary information to accurately place the buildings at the correct height.

Question 6

Which of the following operations would best allow you to place 3D buildings at their proper height on the terrain (e.g. ,the terrain is 900 ft above sea level,you want the building to sit on the terrain,not float above or below it)?

A)Extrusion
B)Offsetting
C)Applying base heights
D)Vertical exaggeration

Accepted Answer

Extrusion is the best choice for creating a footprint of your house and showing it at the proper height because it allows you to lift the 2D geometry of the footprint upwards to create the 3D walls of the house. This results in a realistic model that accurately shows the height of the house. Offsetting and applying base heights would only work for flat surfaces and would not create the necessary vertical dimension. Vertical exaggeration would distort the model and make it less accurate.

Question 7

Describe the basics of how a GeoWall system enables the user to see images in stereoscopic 3D.

Accepted Answer

The answer of Describe the basics of how a GeoWall...

Question 8

In 3D design,elevation or height values are referred to with the letter&#10;A)E.&#10;B)H.&#10;C)Y.&#10;D)Z.

Accepted Answer

In 3D design, elevation or height values are referred to with the letter Z. This is because X and Y values represent the horizontal plane, while Z represents the vertical plane or elevation. Therefore, the correct choice is D.

Question 9

Which of the following operations would best allow you to place 3D buildings at their proper height on the terrain (e.g. ,the terrain is 900 ft above sea level,you want the building to sit on the terrain,not float above or below it)?

A)Extrusion
B)Offsetting
C)Applying base heights
D)Vertical exaggeration

Accepted Answer

The answer of Which of the following operations would best...

Question 10

Graphics that can be applied to the faces of an object to provide a more realistic appearance are&#10;A)smartshapes.&#10;B)omni-objects.&#10;C)textures.&#10;D)links.

Accepted Answer

Textures are the graphic images that are applied to the surfaces of 3D models and other digital objects to give them a realistic appearance. Textures can be created from various sources, including photographs or computer-generated artwork, and they can be applied to various types of objects, such as buildings, landscapes, characters, and vehicles. Textures can also be combined with other 3D modeling and animation techniques to create lifelike environments for games, films, and other digital media.

Question 11

Many 3D models are available to use in Google Earth and SketchUp via the&#10;A)3D Hawaii.&#10;B)3D Warehouse.&#10;C)3D Buildings Layer.&#10;D)3D Thematic Mapper.

Accepted Answer

The answer of Many 3D models are available to use...

Question 12

Extruding a polygon will turn it into a&#10;A)block.&#10;B)line.&#10;C)multipatch.&#10;D)wall.

Accepted Answer

The answer of Extruding a polygon will turn it into...

Question 13

KML and KMZ files are the native file formats used to work with 3D objects in&#10;A)SketchUp.&#10;B)Google Earth.&#10;C)ArcScene.&#10;D)ArcGlobe.

Accepted Answer

The answer of KML and KMZ files are the native...

Deck 14: How to Perform Spatial Interpolation With Arcgis