From d88f2d2d8234f38d7f7bab51bd0222143db187e4 Mon Sep 17 00:00:00 2001
From: Jules Laplace <jules@okfoc.us>
Date: Sun, 11 Sep 2016 15:00:23 -0400
Subject: diff tuning model

---
 env.js | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

(limited to 'env.js')

diff --git a/env.js b/env.js
index 81e69dd..30d3dfa 100644
--- a/env.js
+++ b/env.js
@@ -253,11 +253,11 @@ var environment = (function(){
     return scale_f
   }
   environment.quantize_index = function(index){
-    return mod(index, scale.length)|0
+    return mod(index, scale.length-1)|0
   }
   environment.index_to_frequency = function(index){
-    var f = scale[ mod(index, scale.length)|0 ]
-    var pow = Math.floor(norm(index, 0, scale.length)) - 2
+    var f = scale[ mod(index, scale.length-1)|0 ]
+    var pow = Math.floor(norm(index, 0, scale.length-1)) - 2
     f *= Math.pow(interval, pow)
     // console.log(index, scale.length, pow, f)
     return f
@@ -266,9 +266,8 @@ var environment = (function(){
 
   function DotGrid (opt){
     this.opt = defaults(opt, {
-      dot_min: 2,
-      dot_max: 10,
-      dot_spacing: 19,
+      dot_radius: 4,
+      dot_spacing: 20,
       mouse_radius: 200,
       wave_width: 200,
       fill: "#ffffff",
@@ -298,11 +297,9 @@ var environment = (function(){
   DotGrid.prototype.load = function(){
     var dots = this.dots
     var dx = dy = this.opt.dot_spacing
+    var dot_radius = this.opt.dot_radius
     var x, y, i, j, u, r, a
     
-    var dot_min = this.opt.dot_min
-    var dot_max = this.opt.dot_max
-    
     var w = this.w = window.innerWidth
     var h = this.h = window.innerHeight - $("#controls").height() - dy
     
@@ -310,7 +307,7 @@ var environment = (function(){
       a = []
       dots.push(a)
       for (y = dy/2; y < h; y += dy) {
-        dot = this.group.circle(x, y, 4).attr({
+        dot = this.group.circle(x, y, dot_radius).attr({
           fill: dot_color,
         })
         a.push(dot)
@@ -372,9 +369,8 @@ var environment = (function(){
     var p = opt.point
     var length = this.length = dist(this.head.x, this.head.y, p.x, p.y)
     var theta = angle(this.head.x, this.head.y, p.x, p.y) * 180 / Math.PI
-    var index = Math.floor( length / dot_grid.opt.dot_spacing ) - 1
+    var index = Math.floor( length / dot_grid.opt.dot_spacing )
     if (index < 0) return
-    console.log(index)
     var length = this.length = (index * dot_grid.opt.dot_spacing)
     var q = {
       x: Math.sin(theta) * length + this.head.x,
@@ -391,7 +387,7 @@ var environment = (function(){
       transform: tran_str,
       stroke: color,
     })
-    if (! opt.muted) {
+    if (! opt.muted && length > 0) {
       this.play(opt)
     }
     return length
@@ -425,8 +421,8 @@ var environment = (function(){
   Wire.prototype.frequency = function(){
     var f
     if (use_scale) {
-      f = environment.index_to_frequency( this.length / dot_grid.opt.dot_spacing )
-      // f = environment.quantize(f)
+      f = environment.index_to_frequency( this.length / dot_grid.opt.dot_spacing - 1 )
+      // f = environment.quantize_frequency(f)
     }
     else {
       f = this.length / 340.29 * root
-- 
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