857109 Geographical information systems
- Lecture and exercise
- Semester hours
- Lecturer (assistant)
- Offered in
- Sommersemester 2019
- Languages of instruction
Introduction: Basics of GIS, history, terms and definitions.
Advantages of a GIS: Geometry, thematic und topology.
A first get to know: Example of a spatial query and an overlay, GIS for everybody.
Basics of vector-GIS: Vector GIS model, point, line, area, area and islands, networks.
Basics of raster-GIS: Raster GIS model, raster-metrics, lines and areas in raster model, vector versus raster.
Geometry, thematic, topology in vector model and raster model.
Overlay operators: Intersect (AND), Minus (AND NOT), Union (OR), Exclusive OR (XOR).
Spatial operators: overlap, entirely contain, entirely contained by, contain, contained by, touch, meet, terminates in, is terminus of, passes through, is passed through by, on boundary of, has on boundary, within a distance, spatial equal.
Databases: Basics, database schemata, Relations between data groups, database types, hierarchical model, network-model, relational model, objectoriented model, object-relational model, keys and access paths.
Structured Query Language (SQL): Important SQL statements, create, insert, update, select, join of tables.
Coordinate systems: Mathematical reference surfaces of the earth (plane, sphere, ellipsoid), earth´s surface - sphere - geoid ´ ellipsoid, geodetic datum, transformation between 2 geodetic datum systems, altitude reference system in Austria.
Projections: Plane, cylindrical, conical projections, projections used in Austria: Soldner-Cassini, Gauß-Krüger projection, ´Bundesmeldenetz´, Universal Transverse Mercator, conformal Lambert.
Digital terrain-models (DTM): What is a DTM ?, applications, types of data, data-structures.
Map ´ Algebra: Basics, map algebra language, map algebra functions, local, focal, incremental, zonal functions
- Previous knowledge expected
Basic computer knowledge
- Objective (expected results of study and acquired competences)
The objective of the course is to teach basic knowledge on theory and application of Geographical Informaion Systems.
You can find more details like the schedule or information about exams on the course-page in BOKUonline.