Nam County Puyhou
[26] Aid No. 2: Eye Level (Horizon Line) — All Horizontal Lines Converge To A Single Horizontal
Vanishing Line At Eye Level

Take a suitable photo or drawing and extend all converging lines that are in reality horizontal (i.e., parallel to the ground). Then connect the resulting vanishing points and notice how they all line up on a single horizontal line. This is the vanishing line for all converging horizontals.
Because our man-made environment consists primarily of shapes whose edges and markings approximate vertical and horizontal lines, this horizontal vanishing line plays a key role in perspective drawing.
What determines this line? ... How is it used? ... How does it affect drawings? ...

All sets of horizontal parallel lines converge to points along the horizontal vanishing line.
Illustration courtesy of the Westing-house Air Brake Company
All sets of horizontal parallel lines converge to points along the horizontal vanishing line.
Illustration courtesy of the Westing-house Air Brake Company
What Locates The Vanishing Line For All Horizontal Lines? [27]


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