What Is Geographical Location?

Geographical Location is defined as the position on the earth. The position on the earth is expressed in a coordinate system, This coordinate system is called the GIS coordinate system.

There are two types of co-ordinates system is used in the GIS coordinate system.

1. Geographical Coordinate system 2. Projected coordinate system

1. Geographical Coordinate System- Geographical coordinate system measures the position by taking the account the curvature of the earth's surface.

2. Projected Coordinate System. The projected coordinate system is the transformation of GIS to flat 2D. This is a linear measurement coordinate. It is also used in cad drawing.

To Set The Geographic Location By Specifying Latitude and Longitude

Insert the map image in the drawing area of AutoCAD. Set the scale of the map according to the Scale bar or grid distance of the map.

Go to the workspace setting and set planning and analysis

Planning and analysis > map setup

In the map, setup panel click on the assign

Command >mapcsassign

How -To -Set -Geographic- Location- In -AutoCAD Civil 3D

map assign

Select the GIS coordinate system from the list in the table.

mapsetup> Geolocation

command> Geolocation

A tool opens

Click on the edit location tab there are two options from the map and from file opens.

For from map, click on the from the map.

HOW TO CREATE TIN SURFACE

A. From map means changing the geographical location using a map from an online web service.

After clicking from the map dialogue box is open.

Edit location

Write the latitude and longitude of one point of the map whose GIS coordinate is known. Click on the search options in the address. Next click on the drop mark here. A pint point symbol is shown on the map. Select the kinds of maps as aerial, roads, and hybrid. Click on the next for setting the coordinate system. Select the coordinate system from the list and also select the time zone and drawing unit. Click on the next. After clicking on the next, select a point for the location. Select here point on the map whose coordinate is dropped or write the projected coordinate. Specify the north direction. Completed the process of changing the geographical location using a map from an online web service.

create shape file in Auto Cad civil 3d

B. Edit location from file- In this method, the geographical location is set by the use of kmz /kml file.

Go to edit location

select from file> select kml /kmz file > search the coordinate.

Select the coordinate system from the list and also select the time zone and drawing unit. Click on the next. After clicking on the next, select a point for the location. Select here point on the map whose coordinate is dropped or write the projected coordinate. Specify the north direction. Completed the process of changing the geographical location using a map from an online web service.