PROCEDURE OF PLOTTING
1. A suitable scale is
chosen so that the area can be accommodated in the space available on the map.
chosen so that the area can be accommodated in the space available on the map.
2. A margin of about 2
cm from the edge of the sheet is drawn around the sheet.
cm from the edge of the sheet is drawn around the sheet.
3. The title block is
prepared on the right hand bottom corner.
prepared on the right hand bottom corner.
4. The north line is
marked on the right-hand top corner, and should preferably be vertical. When it
is not convenient to have a vertical north line, it may be inclined to
accommodate the whole area within the map.
5. A suitable position
for the base line is selected on the sheet so that the whole area along with
all the objects it contains can be drawn within the space available in the map.
marked on the right-hand top corner, and should preferably be vertical. When it
is not convenient to have a vertical north line, it may be inclined to
accommodate the whole area within the map.
5. A suitable position
for the base line is selected on the sheet so that the whole area along with
all the objects it contains can be drawn within the space available in the map.
6. The framework is
completed with all survey lines, check lines and tie lines. If there is some
plotting error which exceeds the permissible limit, the incorrect lines should
be resurveyed.
completed with all survey lines, check lines and tie lines. If there is some
plotting error which exceeds the permissible limit, the incorrect lines should
be resurveyed.
7. Until the framework
is completed in proper form, the offsets should not be plotted.
is completed in proper form, the offsets should not be plotted.
8. The plotting of
offsets should be continued according to the sequence maintained in the field
book.
offsets should be continued according to the sequence maintained in the field
book.
9. The main stations,
substations, chain line, objects, etc. should be shown as per standard symbols
substations, chain line, objects, etc. should be shown as per standard symbols
10. The conventional
symbols used in the map should be shown on the right-hand side.
symbols used in the map should be shown on the right-hand side.
11. The scale of the map
is drawn below the heading or in some suitable space. The heading should be
written on the top of the map.
is drawn below the heading or in some suitable space. The heading should be
written on the top of the map.
12. Unnecessary lines,
objects etc. should be erased.
objects etc. should be erased.
13. The map should not
contain any dimensions.
contain any dimensions.
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