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Appendix 1:
Questionnaire for investigation of user requirements for 3D GIS among 15 producers of GIS and 3D CAD urban data

Table 1: Current status: 2D, 2.5D, 3D
Table 2: Analysis in 2D and 2.5D
Table 3: Objects of interest: 2D, 2.5D
Table 4: Resolution: 2D
Table 5: Visualisation: 3D preferences
Table 6: Interaction: 2D, 2.5D
Table 7: Symbolisation: 3D

Table 1: Current status: 2D, 2.5D, 3D
 
  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Orientation 2 2 2 2 2 2 2 2 2 2 2,3 2 2,3 1,2 3
Stored data 1,2,3 1,2,3 1,2 1,2 1,2 1,2,3 1 1,2,3 2 1,2 2 2 1,2 1,2 1
Used data 1,2,3 1,2,3 1,2 1,2 1,2 1,2,3 1 1,2,3 1,2 1,2 1 1 1,2 1,2 1
Output 1,2,3 1,2,3 1,2 1 1 1,2,3 1 1,2,3 1 1 2 2 1 1 1
Data type 1,2,3 1,2,3 1,2,3 1,2,3 1,2,3 1 1,2 1,2 1,2,3 1,2,3 1,2,3 1,2,3 1,2,3 1,2,3 1
Software: storage 1,2,3 1 1,2,3 1 1,2 2 1,2 1,3 1,2 1,2 1,2 1,2 1,2 1,2 2
Software: display 1,2 1,4 1,2,4 1 2 2,4 1,2 1 1,2 1,2 1 1,4 2,4 1,4 2

Orientation:1-Urban areas, 2-combined (urban + something else), 3-others
Geometry: stored, used data, output: 1-2D, 2-2.5D,3-3D
Data type: 1-geometry, 2-attributes, 3-relationships
Software for data storage: 1-GIS, 2-CAD, 3-DBMS, 4-VR

Table 2: Analysis in 2D and 2.5D
 
  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Metric 3 3 3 3 3 3 3 3 3 3 3 - 3 3 3
Positional 3 - 3 - 3 - - 3 3 3 3 - 3 - -
Network 

Analysis

 3 - 3 - 3 - - 3 - - - 3 - - -
Proximity 3 3 3 3 3 - 3 3 3 3 3 - - - -
RelationshipAnalysis 3 3 3 - 3 - - - 3 3 - - - - -
Visibility 3 - - - - 3 - 3 - - 3 3 - - -
Semantic 3 3 3 3 3 3 3 3 3 3 3 - 3 3 3
Mixed 3 3 3 3 - 3 3 3 3 3 3 3 3 3 3

3 yes, -no

Table 3: Objects of interest: 2D, 2.5D
 
  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Buildings 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
Other Constructions 3 - 3 3 - 3 3 3 3 3 3 - - 3 3
Streets 3 3 3 3 3 3 3 3 3 3 3 3 3 3 -
Paths - 3 3 3 - 3 3 3 3 3 - 3 3 3 -
Parks 3 3 3 3 3 3 3 3 3 3 3 3 3 3 -
Utilities 3 3 3 3 3 3 3 3 3 3 3 3 - 3 -
Telecommunications 3 3 - 3 - 3 3 3 3 3 - 3 - 3 -
Vegetation 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3

3 yes, -no

Table 4: Resolution: 2D
 
  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Buildings 1,6,7 1,9 1,5 1,5 1 r 1, 2,5,6,8 1 1,5 1,5 1 1 1 1 1
Streets 1,2 1,2 1,2 1,2,3 1,2,3 1 1,2,3 2 2 2 2 2 2 2 2
Paths (min width) 0.2 in r In - r - - - r r in r In -
Parks (min area) 0.6 in 0.5 In 0,5 r - - - r r in r In -
Utilities (min area) 0.6 in r In in r - - - r r in r In -
Telecommunications (min area) 0.6 - - - - r - - - - - in - In -

Buildings: 1-footprints, 2-roofs, 3-roof facets, 4-chimneys, 5-floors, 6-rooms, 7-room elements, 8-facades, 9-height
Streets: 1-pedestrian areas, 2-car tracks, 3-gardens
r – on request; in – instructions

Table 5: Visualisation: 3D preferences
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Dimensions
3
1
1
3
3
3
3
1,2,3
3
3
1,2,3
2
1
1
1
Screens
3
3
3
-
3
3
3
3
3
3
3
3
3
3
3
Methods
1,3
1
1,2,3
1,2
1
1,2,3
1,3
1,2
1
1
1
1,2
1,2
1
1
Photo texture
3
3
-
-
3
3
3
3
3
3
3
3
3
3
3
Texture instead of geometry
3
3
-
-
3
3
-
3
3
3
-
-
3
3
3
Sources
1,2,3
1,2,3
-
-
2
1,2,3
1,3
1,2,3
1
1
1,2
1
1,2,3
1
1
Software
1
2,3
4
5
1
1,5
-
1,5
1
1
-
1,5
1
1
-
Different resolution
3
3
3
-
3
3
3
3
3
3
3
3
3
3
3

Preferable dimensions: 1-2D, 2-3D, 3-both
Screen spiting with several views: 3 yes, -no
Methods for geometry display: 1-frame, 2-shading, 3-photo texture
Utilisation of photo texture:3 yes,-no
Available source images for photo textures : 1-aerial, 2-terrestrial, 3-conventional camera
Known software for texture mapping: 1-3D Studio, 2-VRML, 3-OpenGL, 4-ArcView, 5-Others
Possibility to visualise geometry with texture: 3 yes, -no
Necessity of different resolution: 3 yes, -no

Table 6: Interaction: 2D, 2.5D
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Elements 
1,2,3
1,2,3
1,2,3
1,2,3
1,2,3
3,4
1,2,4
1,2,3
1,2,3
1,2,3
1,2,3
1,2,3
1,2,3
1,2
1.2
Updating
1,2
1,2,3
1
2,3
1
3
2,3
1,2
2,3
2
2
2
2,3
1,2
2,3
Means for manipulation
1,2
1,2
1
1
1
1
1,2
1
1
1
1,2
1
1,2
1,2
1
Preferable environment 
1
1
1
1
1
1,2
1
1
1
1
1,3
1
2,3
1
1

Mostly manipulated elements: 1-points, 2-lines, 3-faces, 4-bodies
Current manner of updating: 1-automatic, 2-semiautomatic, 3-manual
Means for manipulation: 1-mouse, 2-keyboard, 3-other (what)
Preferable visualisation methods for manipulation: 1-wire frame, 2-shaded, 3-textured

Table 7: Symbolisation: 3D
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Geometric domain
3
3
-
3
3
3
3
3
3
3
3
3
3
3
3
Thematic domain
3
3
-
3
3
3
3
3
3
3
3
-
3
3
3
Geodetic network
3
3
-
r
3
3
3
3
3
3
3
-
3
3
3
Utilities
3
3
-
r
3
3
3
3
3
3
3
-
3
3
3
Transport network
3
3
-
r
3
3
-
3
3
3
-
-
3
3
3
Information signs
3
3
-
r
3
3
-
3
3
3
3
3
3
3
3
Signs on public buildings
3
3
-
r
3
3
-
3
3
3
-
3
3
3
3
Others
i 
-
-
r
3
3
-
3
3
3
-
3
3
r
3

3 yes, - no, r- on request, i -instructions


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