Drawing Cross Sections
Selection of a section line.
Drawing cross sections. Put into a drawing to show an area not normally shown. Put a strip of paper along the cross section and make a mark on your paper wherever the contour lines intersect with your paper. An explanation on how to draw a cross section.
In technical drawing a cross section being a projection of an object onto a plane that intersects it is a common tool used to depict the internal arrangement of a 3 dimensional object in two dimensions. Steps to drawing a cross section 1. Drawing of strike line.
Don t forget to watch my other geography mapwork. The frame should have three sides. Your frame needs to be in the same scale as the drawing you are working from.
It is traditionally crosshatched with the style of crosshatching often indicating the types of materials being used. The distance between two chainages can be decided according to your requirement. For the survey mostly leveling instruments are used to get levels at the site.
Show a cross section of an area turned 90 degrees or perpendicular to the object. You would use a topographic map with contour lines for this. Also you need to mark points a and b on.
Locate two points on a map between which the cross section is to be made. Here is an applet with a rectangular prism 4 units by 2 units by 3 units. Draw floors and ceilings.