Detailed plotting is generally done by Radiation method.

Explanation:
The Radiation method is a graphical method of surveying used to locate a new point from two known points by drawing straight lines from the known points to the new point. It is also called the "angle from point" method. This method is used when the new point is inaccessible for chaining or traversing.

In this method, the angles between the known points and the new point are measured with a theodolite or a compass. The new point is located at the intersection of the two straight lines drawn from the known points to the measured angles. This method is particularly useful in hilly and mountainous terrain where chaining or traversing is difficult.

Advantages of Radiation Method:
• Easy to use and quick method.
• Suitable for locating inaccessible points.
• Requires less time and labor compared to other methods.
• More accurate than other graphical methods.

Disadvantages of Radiation Method:
• Limited to locating one point at a time.
• Errors can occur due to inaccurate angle measurement or sighting.
• Not suitable for large-scale surveying.
• Require skilled surveyors to perform accurate measurements.

Conclusion:
Detailed plotting is generally done by the Radiation method which is a graphical method of surveying used to locate a new point from two known points by drawing straight lines from the known points to the new point.

In radiation we can fix our table at a point and can plot all important thing that we want . it is a fast method