2. Main concepts of ILWIS 3.0 27
2.1 Structure of spatial data in ILWIS ......................................................................................28
• Vector model .............................................................................................................28
• Raster model.............................................................................................................29
• Object types ..............................................................................................................30
• Summary: Structure of spatial data in ILWIS ....................................................30
2.2 Displaying maps and Layer Management ........................................................................31
• Displaying vector and raster maps ......................................................................31
• Layer management ..................................................................................................33
• Summary: Displaying maps and Layer Management ......................................36
2.3 About domains .......................................................................................................................37
• More about class domains ....................................................................................37
• More about identifier domains ..............................................................................39
• More about value domains ....................................................................................40
• Summary: About domains......................................................................................42
2.4 About representations...........................................................................................................43
• More about representation class..........................................................................43
• More about representation value..........................................................................44
• Summary: About representations.........................................................................46
2.5 About coordinate systems ...................................................................................................47
• Summary: About coordinate systems .................................................................49
2.6 More about georeferences...................................................................................................50
• Summary: About georeferences ...........................................................................52
2.7 Attribute data ..........................................................................................................................53
• Summary: Attribute data ........................................................................................54
2.8 Pixel Information window.....................................................................................................55
• Summary: Pixel Information window ...................................................................57
2.9 Details view of a Catalog .....................................................................................................58
• Summary: Details view of a Catalog ...................................................................59
2.10 Object properties and dependency links .........................................................................60
• Dependencies ...........................................................................................................63
• Summary: Object properties and dependency links........................................68
2.11 How to use geographic data in ILWIS ..............................................................................70
• Data input ..................................................................................................................70
• Data management....................................................................................................70
• Data analysis.............................................................................................................70
• Data output................................................................................................................