add scale

files.html

@@ -80,6 +80,7 @@
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href='./modules/frep/transforms/reflect'>reflect</a><br>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href='./modules/frep/transforms/repeat'>repeat</a><br>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href='./modules/frep/transforms/rotate'>rotate</a><br>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href='./modules/frep/transforms/scale'>scale</a><br>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href='./modules/frep/transforms/shear'>shear</a><br>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href='./modules/frep/transforms/shell'>shell</a><br>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href='./modules/frep/transforms/slice'>slice</a><br>

modules/frep/transforms/scale

+//
+// frep scale
+//
+// Neil Gershenfeld
+// (c) Massachusetts Institute of Technology 2018
+//
+// This work may be reproduced, modified, distributed, performed, and
+// displayed for any purpose, but must acknowledge the mods
+// project. Copyright is retained and must be preserved. The work is
+// provided as is; no warranty is provided, and users accept all
+// liability.
+//
+// closure
+//
+(function(){
+//
+// module globals
+//
+var mod = {}
+//
+// name
+//
+var name = 'frep scale'
+//
+// initialization
+//
+var init = function() {
+   mod.ox.value = 0
+   mod.oy.value = 0
+   mod.oz.value = ''
+   mod.sx.value = 2
+   mod.sy.value = .5
+   mod.sz.value = ''
+   }
+//
+// inputs
+//
+var inputs = {
+   shape:{type:'',
+      event:function(evt){
+         mod.shape = evt.detail
+         outputs.shape.event()
+         }},
+   variables:{type:'',
+      event:function(evt){
+         for (var p in evt.detail)
+            mod[p].value = evt.detail[p]
+         outputs.shape.event()
+         }}}
+//
+// outputs
+//
+var outputs = {
+   shape:{type:'',
+      event:function(){
+         var fn = mod.shape.function
+         var variables = mod.shape.variables
+         var type = mod.shape.type        
+         var limits = []
+         for (var v = 0; v < mod.shape.limits.length; ++v) {
+            limits[v] = []
+            limits[v][0] = mod.shape.limits[v][0]
+            limits[v][1] = mod.shape.limits[v][1]
+            }
+         if (mod.ox.value != '') {
+            var ox = parseFloat(mod.ox.value)
+            var sx = parseFloat(mod.sx.value)
+            var xvar = variables[0]
+            var re = new RegExp(xvar,'g')
+            fn = fn.replace(re,`((${ox})+(${xvar}-(${ox}))/(${sx}))`)
+            limits[0][0] = ox+(limits[0][0]-ox)*sx
+            limits[0][1] = ox+(limits[0][1]-ox)*sx
+            }
+         if (mod.oy.value != '') {
+            var oy = parseFloat(mod.oy.value)
+            var sy = parseFloat(mod.sy.value)
+            var yvar = variables[1]
+            var re = new RegExp(yvar,'g')
+            fn = fn.replace(re,`((${oy})+(${yvar}-(${oy}))/(${sy}))`)
+            limits[1][0] = oy+(limits[1][0]-oy)*sy
+            limits[1][1] = oy+(limits[1][1]-oy)*sy
+            }
+         if (mod.oz.value != '') {
+            var oz = parseFloat(mod.oz.value)
+            var sz = parseFloat(mod.sz.value)
+            var zvar = variables[2]
+            var re = new RegExp(zvar,'g')
+            fn = fn.replace(re,`((${oz})+(${zvar}-(${oz}))/(${sz}))`)
+            limits[2][0] = oz+(limits[2][0]-oz)*sz
+            limits[2][1] = oz+(limits[2][1]-oz)*sz
+            }
+         var shape = {function:fn,variables:variables,limits:limits,type:type}
+         mods.output(mod,'shape',shape)}
+         }}
+//
+// interface
+//
+var interface = function(div){
+   mod.div = div
+   //
+   // origin
+   //
+   div.appendChild(document.createTextNode('origin x: '))
+   var input = document.createElement('input')
+      input.type = 'text'
+      input.size = 6
+      div.appendChild(input)
+      mod.ox = input
+   div.appendChild(document.createElement('br'))
+   div.appendChild(document.createTextNode('y: '))
+   var input = document.createElement('input')
+      input.type = 'text'
+      input.size = 6
+      div.appendChild(input)
+      mod.oy = input
+   div.appendChild(document.createTextNode(' z: '))
+   var input = document.createElement('input')
+      input.type = 'text'
+      input.size = 6
+      div.appendChild(input)
+      mod.oz = input
+   div.appendChild(document.createElement('br'))
+   //
+   // scale
+   //
+   div.appendChild(document.createTextNode('scale x: '))
+   var input = document.createElement('input')
+      input.type = 'text'
+      input.size = 6
+      div.appendChild(input)
+      mod.sx = input
+   div.appendChild(document.createElement('br'))
+   div.appendChild(document.createTextNode('y: '))
+   var input = document.createElement('input')
+      input.type = 'text'
+      input.size = 6
+      div.appendChild(input)
+      mod.sy = input
+   div.appendChild(document.createTextNode(' z: '))
+   var input = document.createElement('input')
+      input.type = 'text'
+      input.size = 6
+      div.appendChild(input)
+      mod.sz = input
+   div.appendChild(document.createElement('br'))
+   //
+   // output button
+   //
+   var btn = document.createElement('button')
+      btn.style.padding = mods.ui.padding
+      btn.style.margin = 1
+      btn.appendChild(document.createTextNode('output'))
+      btn.addEventListener('click',function(){
+         outputs.shape.event()
+         })
+      div.appendChild(btn)
+   }
+//
+// local functions
+//
+;
+//
+// return values
+//
+return ({
+   name:name,
+   init:init,
+   inputs:inputs,
+   outputs:outputs,
+   interface:interface
+   })
+}())

modules/index.js

@@ -51,6 +51,7 @@ module_menu('      extrude','modules/frep/transforms/extrude')
 module_menu('      reflect','modules/frep/transforms/reflect')
 module_menu('      repeat','modules/frep/transforms/repeat')
 module_menu('      rotate','modules/frep/transforms/rotate')
+module_menu('      scale','modules/frep/transforms/scale')
 module_menu('      shear','modules/frep/transforms/shear')
 module_menu('      shell','modules/frep/transforms/shell')
 module_menu('      slice','modules/frep/transforms/slice')