Layered concept in GIS refers to representing geographic data thematically in layers. Each layer represents a different type of information, such as trees, rivers, soil types, etc. This allows complex datasets to be separated and organized for analysis. Layers are used widely in applications like maps on phones and in surveying. They allow users to toggle between different views like satellite, road map, or traffic to analyze the data in different contexts. The layered concept is essentially a way of organizing large spatial databases into themes that can be viewed individually or in combination.

1. LAYERED CONCEPT
BY :-
BASEERAT AMIR
REVA UNIVERSITY
“SEC C”

2. DEFINITION OF LAYERD CONCEPT
UNDER GIS
The visual representation of a geographic dataset in any digital
map environment.
Conceptually, a layer is a slice or stratum of the geographic reality
in a particular area, and is more or less equivalent to a legend
item on a paper map.
GEO earth
mapping

3. WHERE IS IT USED AND HOW
IT IS USED EVERWHERE.
• IT IS USED IN PHONES.
• IT IS USED IN SURVERYING.
IN SHORT, IT IS USED IN ALL THE
PLACES WHERE GIS IS USED.

4. WHAT IS LAYERD CONCEPT
SO, LET US IMAGINE ONE TREE .
WE CAN EASILIY KEEP TRACK OF THIS TREE LIKE ITS
EVERYTHING .
NOW LETS THINK THERE ARE MORE THAN 1000 TREES
HOW DO WE KEEP TRACK OF IT.
THIS IS NOT IT WHEN WE ARE DOING
SURVEYING OF A FOREST WE NEED
TO KEEP TRACK OF MANY MORE THINGS
LIKE RIVERS, STREAMS ,SOIL QUALITY ETC …..

5. HOW DO WE DO IT ?

6. HERE IS WHERE LAYERING
CONCEPT COMES
Our information on trees would constitute one layer of information. We
could also have a layer with rivers and a layer with soil types. Any
information can be represented as a layer.

7. LAYERD CONCEPT IN EVERYDAY
USE
IN OUR PHONES WE HAVE MAPS.
MOST COMMONLY USED ONE`S ARE
GOOGLE OR NOKIA MAPS.
WE HAVE LOTS OF OPTIONS IN TO
CHOOSE FROM LIKE SATELLITE VIEW
OR A NORMAL VIEW OR TRAFFIC
VEIW .
OPTIONS -------
THIS PICTURE IS A SCREENSHOT OF GOOGLE MAPS MOBILE
APP

8. THIS IS HOW OUR COLLEGE LOOKS
WHEN WE USE DIFFERENT OPTIONS
THE FIRST PICTURE SHOWS US
THE TERRAIN…….
THIS THE MOST COMMONLY
USED OPTION ......THE
SATELLITE VIEW .
THIS VEIW IS THE TRAFFIC
VIEW …..IT SHOWS US THE
TRAFFIC CONDITION IF ITS
YELLOW THEN THERE IS LITTLE
TRAFFIC ,IF RED THEN FULL
TRAFFIC AND IF GREEN NO OR
VERY LESS TRAFFIC

9. LAYERD CONCPET
CAN TERM AS THEMES…..

10. SO FINALLY LAYERD CONCEPT
ITS NOTHING BUT DATABASE OF
DIFFERENT DATA COMBINED AND
SHOWN AS LAYERS.
THAT IS ,ONE AFTER THE ANOTHER.

11. THIS CONCEPT IN A CIVIL ENGINEER`S
LIFE :-
IT IS VERY IMPORTANT FOR US TO
UNDERSTAND THIS CONCEPT AS GIS
HAS BECOME THE MOST COMMANLY
USED WAY OF SURVERYING …….SO WE
THE NEW GENERATIONS OF
ENGINEER`S HAS TO KNOW
EVERYTHING WHICH INCLUDES
SOFTWARE LEARING .

12. BASEERAT AMIR
SEC C
REVA UNIVERSITY …