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fixed the error when convert image into codes in vertical mode

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whoisnian
2018-07-20 00:20:26 +08:00
parent c2dbefed97
commit b3565df79f
1 changed files with 8 additions and 5 deletions
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index.html
+8 -5
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@@ -668,18 +668,22 @@
var w = document.createElement("input");
w.type = "number";
w.name = "width";
w.id = "screenWidth";
w.min = 0;
w.className = "size-input";
w.value = img.width;
w.oninput = function() { canvas.width = this.value; update(); };
settings["screenWidth"] = img.width;
w.oninput = function() { canvas.width = this.value; update(); updateInteger('screenWidth'); };
var h = document.createElement("input");
h.type = "number";
h.name = "height";
h.id = "screenHeight";
h.min = 0;
h.className = "size-input";
h.value = img.height;
h.oninput = function() { canvas.height = this.value; update(); };
settings["screenHeight"] = img.height;
h.oninput = function() { canvas.height = this.value; update(); updateInteger('screenHeight'); };
var gil = document.createElement("span");
gil.innerHTML = "glyph";
@@ -796,7 +800,6 @@
// Output the image as a string for vertically drawing displays
function imageToStringVertical(image){
var page = 0;
var ctx = image.ctx;
var canvas = image.canvas;
@@ -807,12 +810,12 @@
var output_index = 0;
for(var p=0; p < Math.ceil(settings["screenHeight"] / 8); p++){
for(var x = 0; x <= settings["screenWidth"]; x++){
for(var x = 0; x < settings["screenWidth"]; x++){
var byteIndex = 7;
var number = 0;
for (var y = 7; y >= 0; y--){
var index = ((p*8)+y)*(settings["screenWidth"]*4)+x;
var index = ((p*8)+y)*(settings["screenWidth"]*4)+x*4;
var avg = (data[index] + data[index +1] + data[index +2]) / 3;
if (avg > settings["threshold"]){
number += Math.pow(2, byteIndex);