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# Auxvp

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### Auxvp

1. 1. Given the plan and elevationof a cottage.
2. 2. Draw in the picture plane andthe spectator point.
3. 3. Draw in the horizon line andthe ground line.
4. 4. From the station point, draw aline parallel to the side of thecottage until it strikes thepicture plane. From this pointdrop a line down to the horizonline to establish the right-handvanishing point.
5. 5. Repeat the previous step toestablish the left-handvanishing point.
6. 6. Drop a line from the corner abdown to the ground line. Asthe line ab touches the pictureplane it is a true length inperspective.
7. 7. Connect ab to the twovanishing points to establishthe front receding walls of thecottage.
8. 8. Draw a line of sight from thespectator to cd in plan.Where this line of sight cutsthe picture plane drop avertical line which willindicate the depth of thereceding wall in perspective.
9. 9. Repeat the previous step forthe line ef.
10. 10. Draw in the front recedingwalls of the cottage.
11. 11. A height line may be use to findthe height of the apex (gh) ofthe cottage. Extent the line ghin plan until it reaches thepicture plane. From here drop aline perpindicular to the pictureplane. From the ground linestep up the height h.
12. 12. Draw a line from the right-hand vanishing point to theheight h. Drop the points gand h down perpindicular tothe picture plane to meet theline.
13. 13. Complete the roof of thecottage.
14. 14. Extend the line ag and ch backuntil they meet. They meetdirectly above VPL. This newpoint is known as an auxiliarypoint.
15. 15. Divide the leading edge abinto five equal parts.
16. 16. Vanish each of these pointsback to the right-handvanishing point.
17. 17. Draw a diagonal line from b toc. This divides the line ac intofive equal segments as shown.
18. 18. Bring each of these pointsback to the auxiliaryvanishing point.
19. 19. Draw in the roof tiles inperspective.Note: when drawing inclinedlines in perspective anauxiliary vanishing point willbe of great assistance.