3D Analyst at ArcGIS

Directory
I. INTRODUCTION 3
Two, three-dimensional visualization applications 4
Third, ArcGIS 3D analytical geoprocessing Tool 5
Iv. operation of the instance 6
4.1 Importing 3D Files 6
4.2 3D Buffer 7
4.3 3D Analyst Tool Strip 9
4. 4 Creating a Las DataSet 10
4. 5 discrete point Generation tin 10
4.6 Surface Slope 12
4.7 Surface Aspect 13
4.8 Surface Contour Line 14
4.9 polygon interpolation is Multipatch 15
4.10 Extracting Tin Junction 16
4.11 Tin to Triangle 17
4.12 Visual Analysis 18
4.13 Construction Line of Sight 19
4.14 Skyline 20
4.15 Solar Body Shadow 21
4.16 viewshed 22
4.17 Surface creation and landscape map making 23
4.18 Simulated scene Flight 27

First, Introduction
The ArcGIS 3D Analyst Extension provides a comprehensive set of tools with rich tools to accomplish a variety of tasks. The ArcGIS 3D Analyst geoprocessing tool can create and modify irregular triangulated networks (tins), rasters, and terrain surfaces, and then extract information and features from those objects. You can use the 3D analyst toolset to convert tins to features and rasters, to create 3D features from functional surfaces by extracting height information, to insert information from Rasters, to manipulate rasters mathematically, to reclassify rasters, and to get height, slope, aspect, and volume information from tins and rasters.
The ArcGIS 3D analytic geoprocessing tool is divided into the following categories:
? 3D Features Tool
? 3D Analyst Conversion Tool
? 3D Analyst Data Management
? Functional Surface Tools
? Raster Interpolation Tool
? Raster Calculation Tools
? Raster Reclassification Tool
? Grid surface Tools
? Triangular surface tools
? Visibility Tools
After you create a data structure and get a result set, you can use ArcGlobe or ArcScene to display the data in three-dimensional mode.

Two or three-D visualization application
Three-dimensional analysis (3DAnalyst) adds two dedicated three-dimensional visualization applications: Arcscenetm and Arcglobetm, which extend the capabilities of ArcGIS Desktop, and expanded the three-dimensional functions of Arccatalogtm and ARCMAPTM. The
Arcscene allows the user to create a perspective-based scene in which the geographic information system data can be browsed and interacted with. Users can overlay raster and vector data on the surface and create lines, polygons, and bodies from a vector data source. Users can also create and analyze surfaces using the three-dimensional analysis tools in Arcscene.
Arcglobe provides real-time roaming and scaling of massive three-dimensional rasters, terrains, and vector datasets on standard computer hardware, and in the process there is virtually no speed problem. This mainly relies on a newly introduced index and the method of retrieving data quickly. ArcGlobe. Extend Arccatalog with three-dimensional analysis to manage three-dimensional data and create layers with three-dimensional visual properties. Users can preview three-dimensional scenes and data in Arccatalog using the same browsing tools as in Arcscene. Extend ArcMap with three-dimensional analysis to generate new surfaces from GIS data, as well as to analyze surfaces, attribute values at a location on the query surface, and visibility of different locations on the analysis surface the user can also calculate the volume below the surface area and the surface or below the surface, and create sections along the three-dimensional lines on the surface.

Third, ArcGIS 3D analytic geoprocessing tool
To use the three-dimensional analysis tool, you must first activate the module, select the extension module under the custom menu in the ArcMap main menu, and tick 3D Analyst.
Figure 3-1 3D Analyst extension
Four, instance Operation
4.1 import 3D file
1, select "3D analysis" in Arctoolbox--"convert"--"go from File"-"Import 3D file" (SKP format)
2 , select the file to import in the Import 3D file dialog box, and store the output Multipatch feature settings in the appropriate database.
3, click OK, the resulting multipatch features are already stored in the appropriate database.

Figure 4-1 Import 3D file tool


Figure 4-2 Results after importing a file
4.2 3D buffer
Creates a 3D buffer around a point or line feature. The point input will generate a sphere, and the line input will create a cylindrical feature. The
can be used for volumetric calculations (including calculations provided by the 3D Set operator tool) to improve the buffer quality resulting in smoother 3D features, but processing time will be longer.
Consider specifying a simplified value to improve the performance of complex line features, such as curves with a large number of vertices.
This tool may not be able to generate a closed Multipatch for some line features due to such factors as line geometry and buffer distance used. Avoid buffer distances in the same feature that may cause buffers to overlap, and consider specifying a smaller buffer distance for features that cannot produce output.
? The procedure is as follows:
1, open the Arctoolbox tool--3d Analyst Tool--3d feature--3d buffer
2, select the feature to buffer, set the buffer radius, click OK to generate the corresponding buffer.

Figure 4-3 3D buffering tool

Figure 4-4 features to be buffered

Figure 4-5 3D buffered results

4.3 3D Analyst Tool Strip
Tin data can be edited with the 3D Analyst toolbar, such as inserting contours, creating steepest paths, creating line of sight, insertion points, inserting lines, inserting faces, creating profiles from 3D lines, and so on.

Figure 4-6 3D Analyst Tool Strip
4. 4 Creating a Las DataSet
Data management Tools--las Datasets--Creating Las Datasets
(for research on fast modeling of LAS Data, point source data classification.) ）

Figure 4-7 Creating Las DataSet tools and operations

Figure 4-8 Creating a las DataSet result
4. 5 Discrete point generation tin
Data conversion--3d--tin--Creating a TIN

Figure 4-9 imported Point feature Collection

Figure 4-10 Creating tin tools and operations

Figure 4-11 Results of a tin generation

4.6 Surface slope
Surface slope generation for Terrian or tin data
3D Analyst Tool-surface triangulation-surface slope

Figure 4-12 Surface Slope tool

Figure 4-13 Results of the surface slope

4.7 Surface Aspect
Surface aspect generation for Terrian or tin data

Figure 4-14 Surface Aspect tool

Figure 4-15 Surface Aspect results
4.8 Surface Contour Line
Contour extraction is performed on tin or terrain data, and contour lines are automatically generated for spatial analysis.

Figure 4-17 Surface Contour Line tool

Figure 4-18 Generating a surface contour line result

4.9 Polygon interpolation for Multipatch

Figure 4-19 Polygon interpolation is a multipatch tool

Figure 4-20 Polygon interpolation is a multipatch result

4.10 Extracting Tin Junction points

Fig. 4-21 Thin Tin Node tool

Figure 4-22 thinning tin Junction Results

4.11 Tin Turn Triangles

Figure 4-23 Tin-to-triangle tool

Figure 4-24 Tin-to-triangle results

4.12 Visual Analysis

Figure 4-25 the see-through analysis tool

Fig. 4-26 the results of the visual analysis

4.13 Construction Line of sight

Figure 4-27 Constructing the line of sight tool

Figure 4-28 Constructing the line of sight results

4.14 Skyline

Figure 4-29 Skyline Tool

Figure 4-30 Skyline Results

4.15 Shadow of the sun body

Figure 4-31 Solar Shadow Tool

Figure 4-32 Solar Shadow results
4.16 visual Field

Figure 4-33 visual Field tools

Figure 4-34 Viewshed Analysis Results
4.17 Surface creation and landscape map making
1. Start Arcscene, add data

Figure 4-35 Adding data
2. Creating a Zone tin surface

Figure 4-36 Creating a tin surface

Figure 4-37 Creating a tin surface result
3. Create a grid surface

Figure 4-38 Tin to raster tool

Figure 4-39 Tin to raster results
4, the establishment of three-dimensional landscape map

Figure 4-40 Layer Property settings

Figure 4-41 the results after Setup

Figure 4-42 Three-dimensional landscape diagram

4.18 Simulated scene flight
Requirements:
Grab a series of scene pictures and insert a smooth frame into it to create an animation
Create animations by recording live flight scenes and eventually save animations as AVI files
(a) Grab the scene picture into which smooth frames are inserted to form an animation
1. Add Data

Figure 4-43 The result of adding data
2. Open the Animation toolbar and grab the scene.
Right-click on the toolbar, open the Animation toolbar, click the Take photo button, shoot the current scene, change the scene and then take pictures again until you have taken the scene of interest.

Figure 4-44 Animation Tool bar
3, adjust animation parameters, generate animation
Click the Animation Controller button to modify the animation recording Time "according to duration", control cartoon long, click the Play button to preview the animation

Figure 4-45 Animation Controller
4. Exporting animations
Click the Animation drop-down menu and select "Export Animation" to save the video file in the desired format.

Figure 4-46 Exporting an animation
(ii) Generating animations by recording live flight scenes
1, click the Flight button, the mouse is placed in the scene in the appropriate location, the mouse is a bird shape.

Figure 4-47 Flight Buttons
2. Click the Animation Controller button to set the appropriate duration

Figure 4-48 Setting the duration
3, click the fly along the path button, start flying in the scene, after the end of the click again, stop flying.

Figure 4-49 Click the Stop button to stop the flight
4. Click the Play button to preview
5, export the animation.

3D Analyst at ArcGIS