What is the main task of surveying

1, surveying and mapping: the ground features and landforms are measured and drawn into a map;

2, surveying and modeling: the graphics and location of the buildings designed on the map are marked in the field, as the basis for construction or demarcation.

Measurement work organization principles:

1, layout: from the whole to the local;

2, procedures: from control to rags;

3, accuracy: from high-level to low-level.

Operating principles of measurement work:

Step by step checking, the first step checking is not required, never do the second step.