for a 45-degree projection is simply a map rotated 45 degrees on the sheet, and 

 there is no foreshortening as in any perspective drawing. 



In Figure 24-5 25, the upper corner of the projection, is the northeast 

 corner of the map. The east and west sides of the map are drawn at an angle of 

 30 degrees to the horizontal (in a 30-degree projection). This, the northeast 

 and southwest 90-degree angles of the map become 120 degrees, and the south - 



6 



Figure 24-52. Stratigraphic isometric-projection drawing 



514 



