Skip to main content

Disadvantage of Raster data

  1. Difficult to represent: It is difficult to represent linear features such as accurate network linkage are difficult to establish.
  2. Vector Form: Most input data is in vector form, therefore data must undergo vector-to-raster conversion.
  3. Do not Conform: Most output maps do not conform to high quality cartographic needs.
  4. Large size: Larger file size.     
  5. Edit difficult: Difficult to edit.
  6. Difficult to build relation: Difficult to build topographic relationship.
  7. Inefficient projection: Inefficient projection transformation.
  8. Hard to Represent: Hard to represent objects less than cell size.
  9. Generates Huge Data: Finer resolution generates huge data.
  10. Discrete Feature: Highly generalized representation of discrete features.
  11. Limited interactivity: Limited interactivity 
  12. More primitive: More primitive analysis algorithm.

-----------------------
Labels:

Comments

Post a Comment

Popular posts from this blog

Concentric zone theory

Theories of City Structure-Concentric Zone Theory Introduction: The Concentric or Zonal Theory of urban landuse was first proposed in 1923 by E.W. Burgess. He was a sociologist. The idea behind the concentric model is that the development of a city takes place outwards from its central area in a series of concentric circles to form zones.  Assumption:        i.           Cultural & social heterogeneity of the population.       ii.           Commercial-industrial base to the economy of the city.     iii.           Private ownership of property & economic competition for space.     iv.           Expanding area & population of the city.       v.    ...
Post a Comment
Read more

Sources of Water Mass

Sub-surface water masses formation is more active in the North & South Atlantic & the South Pacific & moderately active in the North Pacific. The sub-surface water masses is not active in the Indian Ocean because of its location in the southern hemisphere. The following arte major source areas of the origin of subsurface water masses-                                            i.           Norwegian Sea Area,                                           ii.           Irminger ...
Post a Comment
Read more

Deep-Ocean Basin

Abyssal Plain:  Abyssal plains is an underwater plain on the deep ocean floor, usually found at depths between 3000 metres & 6000 metres. Characteristics: a)       Abyssal plain is the most extensive relief zone of the ocean floor. b)      The average slope gradient is almost 0.5ᵒ. c)       It covers nearly 40% of the ocean floor. d)      It is flat & rolling submarine plain. Abyssal Hill:  Abyssal hills a small hill that rises from the floor of an abyssal plain. Characteristics: a)       Covering more than 30% of the ocean floor. b)      Height of this hill is less than 100m. Seamounts: Seamounts is an volcanic projections that developed above the abyssal plains that do not rise above the surface of the sea. Characteristics: a)       Seamounts are circular or elliptical. b) ...
Post a Comment
Read more