Cartography/Map Composition in QGIS
OBJECTIVES: - To do Cartography in QGIS on given data set.
Cartography (from Greek χάρτης khartēs, "papyrus, sheet of paper, map"; and γράφειν graphein, "write") is the study and practice of making maps. Combining science, aesthetics, and technique, cartography builds on the premise that reality can be modeled in ways that communicate spatial information effectively.
The fundamental problems of traditional cartography are to
● Set the map's agenda and select traits of the object to be mapped. This is the concern of map editing. Traits may be physical, such as roads or land masses, or may be abstract, such as toponyms or political boundaries.
● Represent the terrain of the mapped object on flat media. This is the concern of map projections.
● Eliminate characteristics of the mapped object that are not relevant to the map's purpose. This is the concern of generalization.
● Reduce the complexity of the characteristics that will be mapped. This is also the concern of generalization.
● Orchestrate the elements of the map to best convey its message to its audience. This is the concern of map design.
PROCEDURE: -
Step:1, Add all the shape files in Layer panel in QGis
Step:2, Go to > Project > New Print Composer or Press Ctrl P
Step:3, Give name to the new print composer
Step:4, Go to QGis file and select India_shp_proj right click and select zoom to layer
Step:5, Composer will open showing the layout. Click on Add New Map. Click on the screen and drag to make a box so that the map of India will be visible inside the box
Step:6. Again go to QGis >Select Karnataka Shape file and right click and select zoom to layer.
Step:7. Add New Shape File
Step:8. Select UK and Zoom to Layer and Add new map in the composer
Step:9. Tick Right on catchment (polygon), points, lines. Select catchment and zoom to layer.
Step:10. Add new map
Step:11. Select map 0 >Go to Item properties and Girds, Coordinates, frames. Add Scale bar, map units, legends, north arrow and arrange the figure add text the final image will look as below.
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