Describe the plotting procedures for the data collection using chain triangulation

Chain Triangulation Data Collection Plotting Procedures

1. Chain Lines:

- Plot the chain lines as straight lines on a plan or graph paper.
- Mark the ends of each chain line with small arrows or dots.

2. Offsets:

- Plot the offsets as perpendicular lines to the chain lines.
- Mark the points of intersection between offsets and chain lines.

3. Triangles:

- Connect the points of intersection to form triangles.
- Label the triangles with the chain lines and offsets from which they were created.

4. Sides and Bases:

- Measure the length of each triangle side (chain lines) and base (offsets).

5. Angles:

- Measure the angles within each triangle using a compass or protractor.

6. Interior Points:

- If interior points are present, plot them by intersecting perpendiculars from two known points or by direct measurement.

7. Boundaries:

- If boundaries are to be defined, locate them and plot them on the plan.

8. Scale:

- Determine the appropriate scale to use for the plot based on the size and complexity of the site.

9. Verification:

- Check the accuracy of the plot by closing triangles and verifying that all measurements and angles match.

10. Finalize:

- Ink in the plot and label the triangles, sides, bases, angles, and interior points.
- Add a legend explaining the symbols and scales used.

Additional Tips:

- Use different colors or line styles to distinguish between chain lines, offsets, and boundaries.
- Label the points and features clearly and concisely.
- Keep the plot neat and organized for easy readability.
- Store the plot in a safe and accessible location for future reference.