<div dir="ltr">To Samuel, <div>From a spot along the centerline, below the low trims, so as to avoid the creation of shadows, half way between the plasterline and the back wall. Put surveyor's brass tacks near the corners, so you can re-calibrate periodically. An inexpensive video projector adjusted for keystoning, shooting into a first-surface mirror can be used to project the grid onto the floor, if the projector's cooling system requires that the projector be kept in a horizontal orientation.</div><div>/s/ Richard</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Aug 14, 2016 at 3:30 PM, SAMUEL JONES via Stagecraft <span dir="ltr"><<a href="mailto:stagecraft@theatrical.net" target="_blank">stagecraft@theatrical.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">From where?<div><br></div><div>Sam</div><span class=""><div><br><div><blockquote type="cite"><div>On Aug 14, 2016, at 3:22 PM, Richard Niederberg via Stagecraft <<a href="mailto:stagecraft@theatrical.net" target="_blank">stagecraft@theatrical.net</a>> wrote:</div><br><div><span style="font-family:Geneva;font-size:14px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;float:none;display:inline!important">Of course, you can project lines and intersections on the floor, corrected for keystoning, producing a grid just like x-ray machines and other devices using radiology do on a patient's body. </span><div style="font-family:Geneva;font-size:14px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">/s/ Richard</div><br></div></blockquote></div><br></div></span></div><br>______________________________<wbr>______________________________<br>
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