(containing pixels)
(containing area features)
(containing line features)
(containing point features)
(containing columns)
(not listed in Catalog)
There are several types of ILWIS objects: data objects, container objects, service objects, and special objects. Click the next link to get a list of all ILWIS objects and their icons in a secondary window.
Data objects are point, segment, polygon and raster maps, satellite images, tables and columns; that are the GIS/RS materials to work with. Maps can be displayed and edited in a map window, tables and columns in a table window. You can perform calculations and operations on data objects.
Data objects are:
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(containing pixels) |
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(containing area features) |
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(containing line features) |
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(containing point features) |
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(containing columns) |
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(not listed in Catalog) |
Container objects are collections of data objects.
Container objects are:
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(containing a set of raster maps) |
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Service objects are domains, representations, georeferences, and coordinate systems. Service objects are used by data objects; they contain accessories that data objects need besides the data itself. Service objects can be selected to serve one or more data objects; they can be created, edited, etc. through the properties of an object.
Service objects are:
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Special objects are histograms, sample sets, stereo pairs, criteria trees, two-dimensional tables, matrices, filters, user-defined functions and scripts.
Special objects are:
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Furthermore, grid lines and graticules can be added to a map window.
Annotation as legends, a map border including coordinates and ticks for grid lines and/or a graticule, a North arrow, a scale bar and a scale text, texts, boxes, bitmaps, pictures, and a page border can be added to a layout.
See also:
