First angle is interpretted by the drawing being positioned to the right of the section and third angle is interpretted by the elevation being positioned to the left of the section.
Escher's drawings illuminate your mind and confuses you for a second.
orthographic
Elevation means the height of something.
a mountain structure is an example of elevation
In blueprinting the two large categories of drawings are plan and elevation view.
It is just where the elevation is positioned, first angle, the drawings is positioned to the right of the section and third, the elevation is positioned to the left of the section, obviously rotated the correct way too.
TERRAIN
TERRAIN
Elevations depict a side view of a structure or other mass. A plan view looks straight down and is sometimes called a bird's-eye view.
Orthographic grid paper is grid paper that allows for isometric drawings. This allows for 3 dimensional drawings, and is common for drawing construction diagrams, as-builts and such. For example, you could use this to account length, width, and elevation.
Compas, title of map, scale, legend
Invert elevations can usually be found directly on as-built drawings of the sewer facility. The simplest way to calculate an invert elevation of a manhole is to measure the depth of the manhole from the surface to the pipe invert. The invert elevation equals the ground or rim elevation minus this depth. If you do not know the rim elevation or invert elevation, a surveyor must measure the invert and/or rim elevation with reference to a nearby elevation benchmark (see: http://commons.wikimedia.org/wiki/Image:Elevation_Benchmark.jpg). Also, upstream and downstream invert elevations in a manhole typically differ by about 0.1 feet.
An elevation drawing is a one dimensional (flat) execution of a portion of a floor plan or architectural rendering of a house plan. It is seen 'head on' or as if you were facing the particular wall or home from the front.
First angle is interpretted by the drawing being positioned to the right of the section and third angle is interpretted by the elevation being positioned to the left of the section.
You can find funny drawings for online viewing at the Funny Drawings website. You can find other funny drawings from the Funny Drawings sub-section of Tumblr.
Detailed Drawings and Assembly Drawings