CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 1  Overview 3D Analysis & Modeling A new ArcView document type: the 3D scene document Data sources for 3D display and analysis 3D visualization Surface modeling Visibility Analysis

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 2  3D Analysis & Modeling view 3D data sets convert 2D data to 3D

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 3  3D Analysis & Modeling feature extrusion

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 4  3D Scene Document new document type

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 5  3D Scene Document TOC & viewer in separate windows

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 6  The 3D scene GUI selection of 3D shapes or other vector features selection of 3D graphical primitives navigate zoom buttonsrotate viewer save as BMP or JPEG

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 7  Data sources for 3D display and analysis Grid data sources TIN data sources 2D shapefiles and raster data 3D shapefiles

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 8  Grid data sources Typical grid data sets from Spatial Analyst Create from any other supported data set Download DEM data Displayed in 3D based on cell values

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 9  TIN data sources Different vector data type Triangulated Irregular Network Point, line, and polygon features

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 10  TIN data sources Complex structure where necessary to model surface

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 11  2D shapefiles and raster data any 2-D theme can be displayed draped over a surface streams contour lines digital orthophoto

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 12  3D shapefiles: A new feature type 2-D shapefiles have only X & Y coordinates 3-D shapefiles incorporate a Z coordinate Z-value can represent any numerical phenomenon Any 2-D shapefile can be converted to a 3-D shapefile Conversion based on a constant, attribute value, or surface model

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 13  3D visualization Legend editing Seeing 2D features in 3D by draping and extruding Navigation and moving around in real-time Real-time perspective viewing

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 14  3D visualization: Legend editing display of TIN can be altered point line polygon

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 15  3D visualization: Seeing 2D features in 3D by draping and extruding display of 2-D theme can be altered offsets extrusion base height of feature

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 16  3D visualization: Seeing 2D features in 3D by draping DEM & streams draped on DEM orthophoto & streams draped on DEM

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 17  3D visualization: Seeing 2D features in 3D by extruding plot centers extruded by attribute value streams extruded by constant

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 18  Navigating the 3D Scene Document navigate tool

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 19  3D visualization: Navigation and moving around in real-time

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 20  Surface modeling Contouring Profiling Color hillshade mapping Steepest descent Viewshed and visibility Slope and aspect calculation

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 21  Surface modeling: Contouring

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 22 line shows green (visible) red (not visible)  Surface modeling: Profiling surface profile generated

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 23  Surface modeling: Color hillshade mapping draping with color ramping

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 24  Surface modeling: Color hillshade mapping draping, color ramping, and hillshading

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 25  Surface modeling: Steepest descent Steepest descent tool; use with TIN

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 26  Surface modeling: Viewshed and visibility calculation of areas visible from a point

CFR 250/590 Introduction to GIS, Autumn D Analysis & Surface Modeling © Phil Hurvitz, vector_analysis_1.ppt 27  Surface modeling: Slope and aspect calculation slope for each cell aspect for each cell