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<!DOCTYPE html>
<html lang="en">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="apple-touch-icon" sizes="57x57" href="/favicon/apple-icon-57x57.png">
<link rel="apple-touch-icon" sizes="60x60" href="/favicon/apple-icon-60x60.png">
<link rel="apple-touch-icon" sizes="72x72" href="/favicon/apple-icon-72x72.png">
<link rel="apple-touch-icon" sizes="76x76" href="/favicon/apple-icon-76x76.png">
<link rel="apple-touch-icon" sizes="114x114" href="/favicon/apple-icon-114x114.png">
<link rel="apple-touch-icon" sizes="120x120" href="/favicon/apple-icon-120x120.png">
<link rel="apple-touch-icon" sizes="144x144" href="/favicon/apple-icon-144x144.png">
<link rel="apple-touch-icon" sizes="152x152" href="/favicon/apple-icon-152x152.png">
<link rel="apple-touch-icon" sizes="180x180" href="/favicon/apple-icon-180x180.png">
<link rel="icon" type="image/png" sizes="192x192" href="/favicon/android-icon-192x192.png">
<link rel="icon" type="image/png" sizes="32x32" href="/favicon/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="96x96" href="/favicon/favicon-96x96.png">
<link rel="icon" type="image/png" sizes="16x16" href="/favicon/favicon-16x16.png">
<link rel="manifest" href="/favicon/manifest.json">
<meta name="msapplication-TileColor" content="#ffffff">
<meta name="msapplication-TileImage" content="/ms-icon-144x144.png">
<meta name="theme-color" content="#ffffff">
<head>
<title>Book Samples</title>
<style type="text/css" media="screen">
* {
box-sizing:border-box;
}
.left {
background-color:#e5e5e5;
padding:5px;
margin-top:7px;
float:left;
width:5%; /* The width is 20%, by default */
}
.main {
background-color:#e5e5e5;
padding:0px;
margin-top:0px;
float:left;
width:50%;
max-width:700px;
}
.right {
background-color:#fff;
padding:0px;
margin-top:0px;
float:left;
width:50%; /* The width is 20%, by default */
}
.editor_controls {
background-color:#e5e5e5;
padding:5px 5px;
margin:0px;
float:top;
width:100%; /* The width is 60%, by default */
}
.editor {
background-color:#e5e5e5;
padding:0px;
margin-top:1%;
margin-left:1%;
margin-right:1%;
margin-bottom:1%;
float:bottom;
width:98%;
height:500px;
}
.samplechoice {
font-size: 12pt;
}
/*
::-webkit-scrollbar {
-webkit-appearance: none;
width: 10px;
}
::-webkit-scrollbar-thumb {
border-radius: 5px;
background-color: rgba(0,0,0,.5);
-webkit-box-shadow: 0 0 1px rgba(255,255,255,.5);
}
*/
/* Use a media query to add a break point at 800px: */
@media screen and (max-aspect-ratio:4/3) {
.left, .main, .right {
width:100%;
max-width: 100%;
}
.editor {
height:250px;
}
}
/* #editor_div {
position: absolute;
display: block;
top: 264px;
right: 0;
bottom: 10px;
left: 0;
}
*/
/* #controls_div {
position: absolute;
display: block;
left: 0;
top: 0;
right: 0;
height: 32px;
}
*/
/* #editor_frame_div {
position: absolute;
display: block;
border: 1px solid;
padding: 0px;
width: 45%;
top: 50px;
bottom: 20px;
resize: both;
overflow: auto;
background-color: #ddd;
font-family: Arial, Helvetica, sans-serif;
font-size: 14px;
}
*/
/* #script_output_textarea {
position: absolute;
display: block;
left:46%;
top:50px;
width:200px;
height:200px;
}
*/
/* #quantum_gates_div {
position: absolute;
display: block;
left:46%;
top:250px;
width:400px;
height:200px;
}
*/
/* #quantum_state_div {
position: absolute;
display: block;
left:46%;
top:450px;
width:400px;
height:500px;
}
*/
#xxxbtn_run {
/*
background-color: #4CAF50;
border: none;
color: white;
padding: 15px 32px;
*/
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 100px;
font-family: Arial, Helvetica, sans-serif;
font-weight: bold;
}
/*.button {
background-color: #4CAF50;
border: none;
border-radius: 20px;
color: white;
padding: 10px 15px;
text-align: center;
text-decoration: none;
display: inline-block;
margin: 0px 0px;
cursor: pointer;
font-family: Arial, Helvetica, sans-serif;
font-weight: bold;
height: 100%;
}
*/
/* some styling tips from https://css-tricks.com/overriding-default-button-styles/ */
.button {
display: inline-block;
border: none;
padding: 1rem 1rem;
margin: 0;
text-decoration: none;
background: #0069ed;
color: #ffffff;
font-family: Arial, Helvetica, sans-serif;
font-weight: bold;
font-size: 1rem;
cursor: pointer;
text-align: center;
transition: background 250ms ease-in-out,
transform 150ms ease;
-webkit-appearance: none;
-moz-appearance: none;
}
.button:hover {
background: #0053ba;
}
.button:focus {
outline: 1px solid #fff;
outline-offset: -4px;
}
.button:active {
transform: scale(0.95);
}
.button_run {font-size: 16pt;}
input:disabled+label {
color: #aaa;
}
body {
font-family: Arial, Helvetica, sans-serif;
}
</style>
</head>
<body>
<script type="text/javascript" src="./sample_shortcuts.js"></script>
<script type="text/javascript" src="https://machinelevel.github.io/QCEngine/src/qcengine_bitfield.js"></script>
<script type="text/javascript" src="https://machinelevel.github.io/QCEngine/src/qcengine_reg.js"></script>
<script type="text/javascript" src="https://machinelevel.github.io/QCEngine/src/qcengine_int.js"></script>
<script type="text/javascript" src="https://machinelevel.github.io/QCEngine/src/qcengine_basicops.js"></script>
<script type="text/javascript" src="https://machinelevel.github.io/QCEngine/src/qcengine_widgets.js"></script>
<script type="text/javascript" src="https://machinelevel.github.io/QCEngine/src/qcengine_staff.js"></script>
<script type="text/javascript" src="https://machinelevel.github.io/QCEngine/src/qcengine_scriptpanel.js"></script>
<script type="text/javascript" src="https://machinelevel.github.io/QCEngine/src/qcengine_panel.js"></script>
<img src="images/cs-title-bar.jpg" style="max-width:100%;height:auto;">
<br/>
<p style="font-size:14pt">
These code samples are from the O'Reilly book <b><i><a href="http://shop.oreilly.com/product/0636920167433.do">Programming Quantum Computers</a></i></b>, available for pre-order at <b><a href="https://www.amazon.com/Programming-Quantum-Computers-Essential-Algorithms/dp/1492039683">Amazon</a></b> and other retailers.
</p>
<p style="font-size:1.5vw"><b>(page formatting and layout is under construction)</b></p>
<br/>
<div style="display: inline-block; width:100%;">
<!-- <div class="left">
what goes here?
-->
<!-- <p>Samples List</p>
<span id="example_choice_span">
<select id="example_choice_sel">
</select>
</span>
</div>
-->
<div class="main">
<!-- <p>Main Content</p>
-->
<div class="editor_controls" id="editor_controls_div">
<table>
<tr>
<td>
<input type="button" class="button button_run" id="btn_run" value="Run Program" onclick="handle_run_button();" title="Hotkey: pressing shift-Enter will also run the program.">
</td>
<td>
<span id="example_choice_span">
<select id="example_choice_sel">
</select>
</span>
<span id="example_github_span">
</span>
</td>
</tr>
</table>
</div>
<div class="editor" id="editor_div">
</div>
</div>
<div id="staff_popin_div" class="right" style="resize: both; overflow: auto;">
<canvas id="draw_gate_canvas"></canvas>
</div>
<div id="circle_div" style="resize: both; overflow: auto;">
<canvas id="circle_canvas", width="500", height="500"></canvas>
</div>
</div>
<br/>
<table>
<tr>
<td align="center" valign="top">
<canvas id="display_qfull_res" width="128" height="128" style="border:1px solid #008;"></canvas><br/>
<span id="display_qfull_res_span">output images<br/>go here.</span>
</td>
<td align="center" valign="top">
<canvas id="display_ground_truth" width="128" height="128" style="border:1px solid #008;"></canvas><br/>
<span id="display_ground_truth_span"></span>
</td>
<td align="center" valign="top">
<canvas id="display_monte_carlo" width="128" height="128" style="border:1px solid #008;"></canvas><br/>
<span id="display_monte_carlo_span"></span>
</td>
<td align="center" valign="top">
<canvas id="display_confidence" width="128" height="128" style="border:1px solid #008;"></canvas><br/>
<span id="display_confidence_span"></span>
</td>
</tr><tr>
<td align="center" valign="top">
<canvas id="display_qss" width="128" height="128" style="border:1px solid #008;"></canvas><br/>
<span id="display_qss_span"></span>
</td>
<td align="center" valign="top">
<canvas id="display_cwtable" width="128" height="128" style="border:1px solid #008;"></canvas><br/>
<span id="display_cwtable_span"></span>
</td>
</tr>
</table>
<!-- <script type="text/javascript" src="http://code.jquery.com/jquery-1.11.1.min.js"></script> -->
<!-- https://www.w3schools.com/html/html_responsive.asp
-->
<!-- Editor info: https://ace.c9.io/#nav=embedding
-->
<!-- <picture>
<source srcset="img_smallflower.jpg" media="(max-width: 600px)">
<source srcset="img_flowers.jpg" media="(max-width: 1500px)">
<source srcset="flowers.jpg">
<img src="img_smallflower.jpg" alt="Flowers">
</picture>
-->
<br/>
<p style="font-size:2.0vw">
<b>To our technical reviewers:</b> Hello! Thank you for your help.
The cosmetics and location of this page will change, but all of the book samples should be available to run
within this page. If you find issues, please let us know.
Cheers,
<i>EJ, Nic, Mercedes</i>
</p>
<!-- <br/>
<span id="example_choice_span">
<select id="example_choice_sel">
</select>
</span>
<br/>
-->
<!-- <br/>
<input type="button" id="btn_run" value="Run Program" onclick="handle_run_button();">
<br/>
<div id="editor_div">
</div>
-->
<!-- <div id="editor_frame_div">
<div id="controls_div">
<table>
<tr>
<td valign="bottom">
<input type="button" id="btn_run" value="Run Program" onclick="handle_run_button();">
<br/>
<input id="chk_theme" type="checkbox" onchange="handle_checkboxes();">
<label for="chk_theme">Dark theme</label>
</td>
<td>
<span id="example_choice_span">
<select id="example_choice_sel">
</select>
</span>
</td>
<td>
<span id="language_choice_span">
<input type="radio" id="lang_js" name="sample_language" value="javascript" onchange="example_menu_changed();"><label for="lang_js">JavaScript (QCEngine)</label><br/>
<input type="radio" id="lang_py" name="sample_language" value="python" onchange="example_menu_changed();"><label for="lang_py">Python (QISKit)</label><br/>
<input type="radio" id="lang_asm" name="sample_language" value="asm" onchange="example_menu_changed();"><label for="lang_asm">QASM (IBM QE)</label>
</span>
</td>
</tr>
</table>
</div>
<div id="editor_div">
</div>
</div> -->
<div id="output_div">
<textarea id="script_output_textarea" style="resize:both;">
(program output goes here)
</textarea>
</div>
<div id="quantum_gates_div">
</div>
<div id="quantum_state_div">
</div>
<script src="./external/ace/src-min-noconflict/ace.js" type="text/javascript" charset="utf-8"></script>
<script>
var editor = ace.edit("editor_div");
editor.session.setMode("ace/mode/javascript");
editor.commands.addCommand({
name: "run",
bindKey: {win: "Shift-Enter", mac: "Shift-Enter"},
exec: function(editor) {
handle_run_button();
}
});
var editor_div = document.getElementById('editor_div');
var editor_frame_div = document.getElementById('editor_frame_div');
var example_choice_span = document.getElementById('example_choice_span');
var example_github_span = document.getElementById('example_github_span');
// var language_choice_span = document.getElementById('language_choice_span');
var script_output_textarea = document.getElementById('script_output_textarea');
var staff_popin_div = document.getElementById('staff_popin_div');
// var current_language = 'javascript';
// var button_js = document.getElementById('lang_js');
// var button_py = document.getElementById('lang_py');
// var button_asm = document.getElementById('lang_asm');
function handle_run_button()
{
// if (current_language != 'javascript')
// {
// var message;
// if (current_language == 'python')
// message = 'To run the Python QISKit examples, please install QISKit at https://qiskit.org and then paste the sample code into your local editor.';
// if (current_language == 'asm')
// message = 'To run the QASM examples, please visit the IBM Quantum Experience website at https://quantumexperience.ng.bluemix.net';
// panel_staff.setVisible(false);
// panel_chart.setVisible(false);
// alert(message);
// }
// else
// {
setup_script_panels(null)
run_script();
qc.panel_staff.staff.fullSnapshot();
//panel_staff.style.width = '100%';
show_state_vector();
// }
}
function handle_checkboxes()
{
if (document.getElementById('chk_theme').checked)
{
editor.setTheme("ace/theme/monokai");
editor_frame_div.style.backgroundColor = '#444';
editor_frame_div.style.color = 'white';
}
else
{
editor.setTheme("");
editor_frame_div.style.backgroundColor = '#ddd';
editor_frame_div.style.color = 'black';
}
}
///////////////////////////////////////////////////////////////
// This is a small workaround for the issue where the editor
// doesn't get informed about size changes
var last_editor_div_width = 0;
var last_editor_div_height = 0;
function check_for_editor_resize()
{
var seconds_per_check_for_editor_resize = 0.5;
var w = editor_div.offsetWidth;
var h = editor_div.offsetHeight;
if (w != last_editor_div_width || h != last_editor_div_height)
{
editor.resize();
last_editor_div_width = w;
last_editor_div_height = h;
}
window.setTimeout(check_for_editor_resize,
1000 * seconds_per_check_for_editor_resize);
}
window.onload = function() {
check_for_editor_resize();
fetch_sample_contents();
make_sample_menu();
};
</script>
<!-- ////////////////////////////////////////////////////////////////////// -->
<script>
function load_json_from_url(file_url)
{
fetch(file_url, {cache: 'reload'})
.then(
function(response) {
if (response.status !== 200) {
console.log('Looks like there was a problem. Status Code: ' + response.status);
return false;
}
response.json().then(function(data) {
console.log(data);
});
return true;
}
)
.catch(function(err) {
console.log('Fetch Error :-S', err);
return false;
});
}
function load_code_from_url(file_url)
{
var use_fetch = false; // fetch is not supported on Kindles
if (use_fetch)
{
fetch(file_url, {cache: 'reload'})
.then(
function(response) {
if (response.status !== 200) {
console.log('Error loading ' + file_url + '. Status Code: ' + response.status);
return false;
}
response.text().then(function(data) {
editor.focus();
editor.setValue(data);
editor.gotoLine(0);
});
return true;
}
)
.catch(function(err) {
console.log('Fetch Error :-S', err);
return false;
});
}
else
{
var http_request = new XMLHttpRequest();
http_request.open('GET', file_url, true);
// If specified, responseType must be empty string or "text"
http_request.responseType = 'text';
http_request.onload = function ()
{
if (http_request.readyState === http_request.DONE)
{
if (http_request.status === 200)
{
// console.log(http_request.response);
// console.log(http_request.responseText);
editor.focus();
editor.setValue(http_request.responseText);
editor.gotoLine(0);
}
else
{
var code_str = '// sample ' + file_url + ' could not be loaded.\n';
editor.focus();
editor.setValue(code_str);
editor.gotoLine(0);
}
make_github_source_links();
}
};
http_request.send(null);
return true;
}
make_github_source_links();
}
qc_options.staff_canvas = document.getElementById('draw_gate_canvas');
qc_options.staff_div = document.getElementById('staff_popin_div');
qc_options.circle_canvas = document.getElementById('circle_canvas');
qc_options.circle_div = document.getElementById('circle_div');
var qc = QPU();
// qc.set_canvas(document.getElementById('draw_gate_canvas'));
// panel_staff = qc.panel_staff;
// panel_chart = qc.panel_chart;
var current_sample = null;
var all_sample_contents = {};
function fetch_one_sample_dir(engine)
{
var base_url = 'https://api.github.com/repos/oreilly-qc/oreilly-qc.github.io/contents/samples/';
var http_request = new XMLHttpRequest();
http_request.open('GET', base_url + engine.name, true);
// If specified, responseType must be empty string or "text"
http_request.responseType = 'text';
http_request.onload = function ()
{
if (http_request.readyState === http_request.DONE)
{
if (http_request.status === 200)
{
engine.dir_list = http_request.responseText;
make_github_source_links();
}
else
{
engine.dir_list = '';
}
}
};
http_request.send(null);
}
function fetch_sample_contents()
{
for (var i = 0; i < engine_list.length; ++i)
fetch_one_sample_dir(engine_list[i]);
}
function make_sample_menu()
{
str = '';
str += '<select class="samplechoice" id="example_choice_sel" onchange="example_menu_changed();">';
for (i = 0; i < sample_menu.length; ++i)
{
sample = sample_menu[i];
str += '<option value="' + sample.sample_file + '">';
str += sample.menu_title;
str += '</option>';
}
str += '</select>';
example_choice_span.innerHTML = str;
try_to_get_program_from_passed_in_url();
}
function make_github_source_links()
{
var sample = current_sample;
str = '<br/>';
// if (sample != null)
{
str += 'View source in Github: ';
for (i = 0; i < engine_list.length; ++i)
{
engine = engine_list[i];
if (i > 0)
str += ' / ';
var sample_ok = engine.dir_list.includes(sample.sample_file);
if (sample_ok)
{
var link = 'https://github.com/oreilly-qc/oreilly-qc.github.io/blob/master/samples/';
link += engine.name + '/' + sample.sample_file + engine.suffix;
str += '<b><a href="'+link+'">'+engine.name+'</a></b>';
}
else
{
str += '<span style="color:#aaa">' + engine.name + '</span>';
}
}
}
example_github_span.innerHTML = str;
}
// get_url_param() is adapted from JeffreyCrofte's work here: https://www.creativejuiz.fr/blog/en/javascript-en/read-url-get-parameters-with-javascript
function get_url_param(param)
{
var vars = {};
window.location.href.replace( location.hash, '' ).replace(
/[?&]+([^=&]+)=?([^&]*)?/gi, // regexp
function( m, key, value ) { // callback
vars[key] = value !== undefined ? value : '';
}
);
if (param) {
return vars[param] ? vars[param] : null;
}
return vars;
}
function get_sample_from_string(sample_str)
{
for (var i = 0; i < sample_menu.length; ++i)
{
var sample = sample_menu[i];
if (sample_str == sample.sample_file || sample_str == sample.shortcut)
return sample;
}
return sample_menu[0];
}
function get_engine_from_string(engine_str)
{
for (var i = 0; i < engine_list.length; ++i)
{
var engine = engine_list[i];
if (engine_str == engine.sample_file || sample_str == engine.shortcut)
return engine;
}
return engine_list[0];
}
function try_to_get_program_from_passed_in_url()
{
var sample_str = get_url_param('p');
var engine_str = get_url_param('e');
var sample = get_sample_from_string(sample_str);
var engine = get_engine_from_string(engine_str);
menu = document.getElementById('example_choice_sel');
menu.value = sample.sample_file;
example_menu_changed();
}
function load_code_sample(sample_str)
{
var sample = get_sample_from_string(sample_str);
current_sample = sample;
var qce = engine_list[0];
var raw_qce_code_url = qce.subdir + sample.sample_file + qce.suffix;
var github_links_str = '';
ok = load_code_from_url(raw_qce_code_url);
if (!ok)
{
var code_str = '// sample ' + raw_qce_code_url + ' could not be loaded.\n';
editor.focus();
editor.setValue(code_str);
editor.gotoLine(0);
}
return ok;
}
// for (i = 0; i < sample_list.length; ++i)
// {
// sample = sample_list[i];
// if (program_id == sample.id)
// {
// menu = document.getElementById('example_choice_sel');
// menu.value = program_id;
// return true;
// }
// }
// }
// return false;
//}
function example_menu_changed()
{
// if (button_js.checked)
// current_language = 'javascript';
// if (button_py.checked)
// current_language = 'python';
// if (button_asm.checked)
// current_language = 'asm';
// menu = document.getElementById('example_choice_sel');
// load_example(menu.value);
// var editor_mode = "ace/mode/" + current_language;
// if (current_language == 'asm')
// editor_mode = '';
// editor.session.setMode(editor_mode);
// if (current_language == 'javascript')
// {
// handle_run_button();
// rewind_to_beginning();
// }
// else
// {
// panel_staff.setVisible(false);
// panel_chart.setVisible(false);
// }
menu = document.getElementById('example_choice_sel');
load_code_sample(menu.value);
clear_output();
}
// function load_example(id)
// {
// for (i = 0; i < sample_list.length; ++i)
// {
// sample = sample_list[i];
// if (sample.id == id)
// {
// var id_lang = setup_program_in_language(id);
// source_area = document.getElementById(id_lang);
// if (source_area != null)
// {
// editor.focus();
// editor.setValue(source_area.value);
// editor.gotoLine(0);
// setup_script_panels(sample);
// }
// return;
// }
// }
// }
// function setup_program_in_language(id)
// {
// var src_js = document.getElementById(id + '_javascript');
// var src_py = document.getElementById(id + '_python');
// var src_asm = document.getElementById(id + '_asm');
// button_js.disabled = (src_js == null);
// button_py.disabled = (src_py == null);
// button_asm.disabled = (src_asm == null);
// var id_lang = id + '_' + current_language;
// source_area = document.getElementById(id_lang);
// if (source_area == null)
// {
// // If the language isn't supported, switch to JavaScript
// current_language = 'javascript'
// id_lang = id + '_' + current_language;
// }
// set_current_language_checkbox();
// return id_lang;
// }
// function set_current_language_checkbox()
// {
// if (current_language == 'javascript')
// button_js.checked = true;
// if (current_language == 'python')
// button_py.checked = true;
// if (current_language == 'asm')
// button_asm.checked = true;
// }
function LoadUserName() {}
function setup_script_panels(sample)
{
if (qc.panel_staff)
{
// if (current_language != 'javascript')
// {
// panel_staff.setVisible(false);
// panel_chart.setVisible(false);
// return;
// }
// panel_staff.div.parentNode.removeChild(panel_staff.div);
// console.log('div');
// console.log(panel_staff);
// console.log(panel_staff.div);
// panel_staff.div.style.scroll = 'both';
qc_options.color_by_phase = false;
qc_options.circle_scale = 0.5;
qc.start();
qc.enableAnimation();
// qc.reset(sample.num_qubits);
// qc.write(0);
// qint.new(sample.num_qubits, 'reg');
sample = {num_instructions:20,num_qubits:18,num_circle_cols:8,num_circle_rows:2};
var left = 510;
var top = 260;
var gate_grid = 20;
var circle_grid = 64;
var gate_width = 100 + 20 + gate_grid * sample.num_instructions;
var gate_height = 80 + gate_grid * sample.num_qubits;
qc.panel_staff.setPos(left, top);
qc.panel_staff.setSize(gate_width, gate_height);
top += gate_height + 32;
var circle_width = 20 + circle_grid * sample.num_circle_cols;
var circle_height = 150 + circle_grid * sample.num_circle_rows;
qc.panel_chart.setPos(left, top);
qc.panel_chart.setSize(circle_width, circle_height);
qc.panel_staff.setVisible(true);
qc.panel_chart.setVisible(true);
qc.panel_staff.draw();
qc.panel_chart.draw();
}
// pop_in(qc.panel_staff.div, staff_popin_div);
// pop_in(qc.panel_chart.div, staff_popin_div);
}
function pop_in(child_div, parent_div)
{
// parent_div.appendChild(child_div);
// child_div.style.position = 'relative';
// child_div.style.top = 0;
// child_div.style.left = 0;
// child_div.style.width = '100%';
// child_div.style.height = '200px';
// child_div.style.marginLeft = 0;
// child_div.style.marginTop = 0;
// child_div.style.boxShadow = 'none';
// child_div.style.overflow = 'scroll';
// child_div.style.display = 'block';
}
function run_script()
{
qc_options.color_by_phase = false;
qc_options.circle_scale = 0.5;
qc.start();
if (qc) {
// qc.disableAnimation();
// qc.enableRecording();
qc.codeLabel('');
}
qc.enableAnimation();
runQCScriptInTextArea('editor', 'script_output_textarea');
qc.qReg.changed();
qc.panel_staff.draw();
qc.panel_chart.draw();
qc.enableAnimation();
}
function clear_output()
{
script_output_textarea.value = '(output prints here)\n';
}
function rewind_to_beginning()
{
// if (current_language != 'javascript')
// return;
console.log('instructions: ' + qc.qReg.staff.insertionStart);
qc.qReg.staff.rewind_insertion_to_start();
}
function show_state_vector()
{
list = qc.panel_chart.widgets;
for (var i = 0; i < list.length; ++i)
{
if (list[i].stateVector)
{
// console.log(list[i]);
list[i].collapsed = false;
}
else if (list[i].blochSphere || list[i].densityMatrix || list[i].graphState || list[i].stabilizerState)
list[i].in_use = false;
}
}
// list[index].in_use = true;
// list[index].drawQInt = qint;
// list[index].densityMatrix = false;
// list[index].fockState = false;
// list[index].stabilizerState = false;
// list[index].blochSphere = false;
// list[index].graphState = false;
// list[index].stateVector = false;
// list[index].collapsed = true;
</script>