help and notes

step 1: decide alignment height

• first, enter the chosen alignment height for a work in the Step 1 field 'alignment height'. That is, decide whether you wish the top, middle or lower edge to be at a specified height. Works in a clustered group may use different alignments. Other fields in Step 1 and Step 2 of the form are not required

step 2: install works

• complete Step 3 fields for each individual work. Enter relevant distance to the previous work/edge if any (it may be zero for the first work or an arbitrary distance) and other Step 3 work measurements (width, height, drops and adjustments). Choose the correct alignment table corresponding to your chosen alignment and read out fastener locations
  
• you might also use the calculator to determine the location of the group and/or its distance to the previous or next edge. One way to do this is to treat the whole group as a single work and use Step 2 to determine horizontal distances. To adjust a group's location, or the location of components within a group the 'golden ratio' can be useful - scratch pad has phi built-in to help with that
  
• make sure to press tab or enter key when last data item in a section is entered to ensure result tables will update
  
• starting at one side, hang works one at a time repeating the process for each work. Ensure each work is hanging horizontal with a level before proceeding
• such groups are best designed before hanging; and with careful planning fastener locations can be determined in advance of hanging using a plan, eg. pdf template
  
• use "AC" clear data button to delete your entries in the app, exiting page or app will also clear all data
  

notes

• use buttons like a calculator, or math expressions can be entered directly into the result area by clicking/tapping it and using a keyboard (the area has multiple lines for long expressions), then when ready press blue = button
• hint: you can also enter your measurements or calculations into the temporary notes area and then copy and paste them into the result area. This is useful to keep track of, or reuse, your measurements and calculations
• calculator uses mathjs library and can parse and evaluate expressions using many units and constants, eg. feet, inch, m, cm, mm, kg, lb, degF, degC, mean, std, pi, phi, sum, sqrt, ^, %, !, e, trigonometric, bin, hex, etc. For more information: mathjs.org units
• order of operations:
  • parentheses
  • exponents
  • multiplication and division
  • addition and subtraction
  • same precedence (like * and /) are computed from left to right
• usage examples include:
  • calculate the sum of lengths or heights: sum(first,second,third,...) with no final comma and a closing parenthesis needs to be added;
  • do basic picture hanging calculations such as: alignment_height+(picture_height/2)-drop_to_fastener for mid-line alignment height, or sum(alignment_height,picture_height/2,-drop_to_fastener);
  • find the longer 'golden ratio' length, eg. to locate a mid-point for an off-center work or group in a wall section, enter: wall_length/phi; or for any height or width length/phi
  • determine the location on a floor at 90° from a wall point, calculate the hypotenuse side of a right angle triangle enter sqrt(first^2+second^2) a closing parenthesis needs to be added;
  • conversions for hardware, wires etc. use to, eg. convert feet/inches to mm enter #inch to mm or #feet +#inch to mm, or #kg to lb
• decimal calculations done in javascript sometimes produce results with many decimal places - these inaccuracies can be ignored, or results rounded manually
• temporary notes will be cleared on exiting page or app