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Photography © Allison Lacher.

Aligning different representations invariably requires reference points to compare evidence, look for similarities and match segments accurately. Placing different sections together at the correct location and angle of intersection is aided by a system of targets or markers.

Works shown L to R, Erin Hayden, Gina Hunt, Tom Burtonwood, Joshua Epstein & Will Hutnick. Photography © Allison Lacher.

Instructions for targets.

  1. Targets should be applied to the structure at varying heights and spaced at least 5 feet apart. There should be 3 targets drawn on each side of the house.
  2. Each target is composed of two black squares, arranged diagonally with the bottom right corner of the first square touching the top left corner of the second square.
  3. Each square should be no smaller than 3 inches on each side. Each target should be no smaller than 6 inches on each side.
  4. Use black ink / paint / marker.

Photography © Allison Lacher.

  1. Select an area of the structure measuring seven inches square that is opaque and flat.
  2. Draw a horizontal line 3 inches in length from left to right. Use a level to make sure the line is plumb to the the ground plane.
  3. Draw a second horizontal line parallel to the first from left to right starting at the same left position, again use a level to ensure line is plumb.
  4. Draw a vertical line between the two left points of the horizontal lines.
  5. Draw a vertical line between the two right points of the horizontal lines.
  6. You should now have a square of 3 inches on each side the black media of your choosing.
  7. Starting at the bottom right corner of your square repeat steps 1 - 4.
  8. You should now have two squares arranged diagonally, both plumb to the ground plane and touching at their respective bottom right and top left corners.
  9. Shade in both squares, cross hatching diagonally, then vertically, the horizontally, your goal is to have solid black square. Try to keep the crosshatching marks within the perimeter of the squares that you have drawn.
  10. Using pencil and a level draw a line parallel to the underneath of the bottom right corner square. The line should be 1 inch from the bottom of the square and should start and stop at the same left and right position.
  11. Using pencil notate target number using the following protocol. DEMO_001, your name, date, time.
  12. Photograph target at a fairly high resolution making sure to get notation information.

Photography © Allison Lacher.

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