Our coordinate axes will be as shown in the figures

Our coordinate axes will be as shown in the figures - γ =...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Our coordinate axes will be as shown in the figures, with the origin at A, with the x axis parallel to the baseline and directed to the right, the y axis vertical and directed upwards, and the z axis perpendicular to the x and y axes, and directed towards the building. A simple translation of axes will later place the origin at any selected point, such as a corner of the building, and a rotation of axes can adjust the base line to be parallel to any selected line. We now calculate the x coordinate of point P.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: γ = 180 - α- β a = c sin α / sin γ b = c sin β / sin γ Figure: Plan View From the plan view we see that cos ( α- ε ) = x / b x = b cos ( α- ε ) Next we find the y coordinate of point P. From position A: tan θ = y / b From position B: y = b tan θ tan φ = ( y + ∆ ) / a y = a tan φ- ∆ As mentioned, the values of y found from each setup position are independent. Next we find the z coordinate of point P. sin ( α- ε ) = z / b From which, z = b sin ( α- ε )...
View Full Document

This note was uploaded on 11/05/2011 for the course ARH ARH2000 taught by Professor Karenroberts during the Fall '10 term at Broward College.

Ask a homework question - tutors are online