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Implement atlas view, and drawing tool for new entries.

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Roland Rytz 2017-04-04 01:24:46 +02:00
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/*
========================================================================
The /r/place Atlas
An Atlas of Reddit's /r/place, with information to each
artwork of the canvas provided by the community.
Copyright (C) 2017 Roland Rytz <roland@draemm.li>
Licensed under the GNU Affero General Public License Version 3
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
For more information, see:
https://draemm.li/various/place-atlas/license.txt
========================================================================
*/
function initDraw(){
var finishButton = document.getElementById("finishButton");
var resetButton = document.getElementById("resetButton");
var undoButton = document.getElementById("undoButton");
var redoButton = document.getElementById("redoButton");
var objectInfoBox = document.getElementById("objectInfo");
var hintText = document.getElementById("hint");
var exportButton = document.getElementById("exportButton");
var cancelButton = document.getElementById("cancelButton");
var exportOverlay = document.getElementById("exportOverlay");
var exportCloseButton = document.getElementById("exportCloseButton");
container.style.cursor = "crosshair";
var path = [];
var drawing = true;
var undoHistory = [];
var lastPos = [0, 0];
render(path);
container.addEventListener("mousedown", function(e){
lastPos = [
e.clientX
,e.clientY
];
});
container.addEventListener("mouseup", function(e){
if(Math.abs(lastPos[0] - e.clientX) + Math.abs(lastPos[1] - e.clientY) <= 4 && drawing){
path.push([
~~((e.clientX - (container.clientWidth/2 - innerContainer.clientWidth/2 + zoomOrigin[0]))/zoom)+0.5
,~~((e.clientY - (container.clientHeight/2 - innerContainer.clientHeight/2 + zoomOrigin[1]))/zoom)+0.5
]);
render(path);
undoHistory = [];
redoButton.disabled = true;
undoButton.disabled = false;
if(path.length >= 3){
finishButton.disabled = false;
}
}
});
window.addEventListener("mousemove", function(e){
if(!dragging && drawing){
var last = [
~~((e.clientX - (container.clientWidth/2 - innerContainer.clientWidth/2 + zoomOrigin[0]))/zoom)+0.5
,~~((e.clientY - (container.clientHeight/2 - innerContainer.clientHeight/2 + zoomOrigin[1]))/zoom)+0.5
];
render(path.concat([last]));
}
});
window.addEventListener("keyup", function(e){
if(e.key == "Enter"){
finish();
} else if(e.key == "z" && e.ctrlKey){
undo();
} else if(e.key == "y" && e.ctrlKey){
redo();
} else if(e.key == "Escape"){
exportOverlay.style.display = "none";
}
});
finishButton.addEventListener("click", function(e){
finish();
});
undoButton.addEventListener("click", function(e){
undo();
});
redoButton.addEventListener("click", function(e){
redo();
});
resetButton.addEventListener("click", function(e){
reset();
});
cancelButton.addEventListener("click", function(e){
reset();
});
document.getElementById("nameField").addEventListener("keyup", function(e){
if(e.key == "Enter"){
exportJson();
}
});
document.getElementById("websiteField").addEventListener("keyup", function(e){
if(e.key == "Enter"){
exportJson();
}
});
document.getElementById("subredditField").addEventListener("keyup", function(e){
if(e.key == "Enter"){
exportJson();
}
});
exportButton.addEventListener("click", function(e){
exportJson();
});
exportCloseButton.addEventListener("click", function(e){
reset();
exportOverlay.style.display = "none";
});
function exportJson(){
var exportObject = {
id: 0
,name: document.getElementById("nameField").value
,description: document.getElementById("descriptionField").value
,website: document.getElementById("websiteField").value
,subreddit: document.getElementById("subredditField").value
,center: calculateCenter(path)
,path: path
};
var jsonString = JSON.stringify(exportObject, null, "\t");
var textarea = document.getElementById("exportString");
jsonString = jsonString.split("\n");
jsonString = jsonString.join("\n ");
jsonString = " "+jsonString;
textarea.value = jsonString;
exportOverlay.style.display = "block";
textarea.focus();
textarea.select();
}
function calculateCenter(path){
var area = 0,
i,
j,
point1,
point2;
for (i = 0, j = path.length - 1; i < path.length; j=i,i++) {
point1 = path[i];
point2 = path[j];
area += point1[0] * point2[1];
area -= point1[1] * point2[0];
}
area *= 3;
var x = 0,
y = 0,
f;
for (i = 0, j = path.length - 1; i < path.length; j=i,i++) {
point1 = path[i];
point2 = path[j];
f = point1[0] * point2[1] - point2[0] * point1[1];
x += (point1[0] + point2[0]) * f;
y += (point1[1] + point2[1]) * f;
}
return [~~(x / area)+0.5, ~~(y / area)+0.5];
}
function undo(){
if(path.length > 0 && drawing){
undoHistory.push(path.pop());
redoButton.disabled = false;
if(path.length == 0){
undoButton.disabled = true;
}
render(path);
}
}
function redo(){
if(undoHistory.length > 0 && drawing){
path.push(undoHistory.pop());
undoButton.disabled = false;
if(undoHistory.length == 0){
redoButton.disabled = true;
}
render(path);
}
}
function finish(){
drawing = false;
render(path);
objectInfoBox.style.display = "block";
hintText.style.display = "none";
finishButton.style.display = "none";
undoButton.style.display = "none";
redoButton.style.display = "none";
resetButton.style.display = "none";
document.getElementById("nameField").focus();
}
function reset(){
path = [];
undoHistory = [];
finishButton.disabled = true;
undoButton.disabled = true; // Maybe make it undo the cancel action in the future
redoButton.disabled = true;
drawing = true;
render(path);
objectInfoBox.style.display = "none";
hintText.style.display = "block";
finishButton.style.display = "block";
undoButton.style.display = "block";
redoButton.style.display = "block";
resetButton.style.display = "block";
document.getElementById("nameField").value = "";
document.getElementById("descriptionField").value = "";
document.getElementById("websiteField").value = "";
document.getElementById("subredditField").value = "";
}
function render(path){
context.globalCompositeOperation = "source-over";
context.clearRect(0, 0, canvas.width, canvas.height);
context.fillStyle = "rgba(0, 0, 0, 0.6)";
context.fillRect(0, 0, canvas.width, canvas.height);
context.beginPath();
if(path[0]){
context.moveTo(path[0][0], path[0][1]);
}
for(var i = 1; i < path.length; i++){
context.lineTo(path[i][0], path[i][1]);
}
context.closePath();
context.strokeStyle = "rgba(255, 255, 255, 1)";
context.stroke();
context.globalCompositeOperation = "destination-out";
context.fillStyle = "rgba(0, 0, 0, 1)";
context.fill();
}
}

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<!--
========================================================================
The /r/place Atlas
An Atlas of Reddit's /r/place, with information to each
artwork of the canvas provided by the community.
Copyright (C) 2017 Roland Rytz <roland@draemm.li>
Licensed under the GNU Affero General Public License Version 3
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
For more information, see:
https://draemm.li/various/place-atlas/license.txt
========================================================================
-->
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<link href="./style.css?version=1.0" rel="stylesheet" type="text/css" media="all">
<title>
The /r/place Atlas
</title>
<meta name="description" content="An Atlas of Reddit's /r/place, with information to each artwork of the canvas.">
<meta name="author" content="Roland Rytz">
<meta name="keywords" content="reddit, /r/place, april">
<meta name="application-name" content="/r/place Atlas">
<meta name="robots" content="index, follow">
</head>
<body>
<header>
<img id="logo" src="logo.png" height="50" width="50" alt="">
<h1>The /r/place Atlas</h1>
<nav>
<a id="viewLink" href="./" class="current">View</a>
<a id="drawLink" href="./?mode=draw">Draw</a>
<a id="aboutLink" href="./?mode=about">About</a>
</nav>
</header>
<div id="aboutContainer">
<div id="about">
<h2>The /r/place Atlas</h2>
<p>This is an Atlas aiming to chart all the artworks created during the <a href="https://www.reddit.com/r/place/">/r/place</a> April's fools event on <a href="https://www.reddit.com/" target="_blank">Reddit</a> in 2017.</p>
<p>The code was developed by <a href="/" target="_blank" rel="author">Roland Rytz</a> and is available under the free <a href="https://www.gnu.org/licenses/agpl-3.0.en.html">AGPL license</a> on <a target="_blank" href="https://github.com/RolandR/place-atlas">GitHub</a>.
<h2>How to contribute</h2>
<p>Everybody is encouraged to collaborate in mapping all of /r/place on the Atlas.</p>
<p>To do so, head over to the <a href="./?mode=draw">Draw tab</a>, draw the outline of the piece you want to submit, and post it on the <a href="https://www.reddit.com/r/placeAtlas/">/r/placeAtlas</a> subreddit.</p>
<p>This is also the place to submit all bug reports, feature requests or questions.</p>
</div>
</div>
<div id="container">
<canvas id="linesCanvas"></canvas>
<div id="innerContainer">
<canvas id="highlightCanvas" width="1000" height="1000"></canvas>
<img id="image" src="./place.png" width="1000" height="1000" />
</div>
</div>
<div id="drawControls">
<div>
<button id="undoButton" disabled>Undo</button>
<button disabled id="redoButton">Redo</button>
</div>
<button disabled id="finishButton">Finish (Enter)</button>
<button id="resetButton">Reset</button>
<span id="hint">
<p>Click anywhere on the image to start drawing a shape.</p>
<p>When you're happy with the result, click the "Finish" button above or press the Enter key.</p>
<p>You can then add more information about your object.</p>
</span>
<div id="objectInfo">
<label for="nameField">Name</label>
<input id="nameField" type="text" value="" placeholder="A short title">
<label for="descriptionField" rows="20" cols="3">Description</label>
<textarea id="descriptionField" placeholder="A short description to be understood by everyone"></textarea>
<label for="websiteField">Website</label>
<input id="websiteField" type="text" value="" placeholder="https://example.com">
<label for="subredditField">Subreddit</label>
<input id="subredditField" type="text" value="" placeholder="/r/example">
<div id="infoButtons">
<button id="cancelButton">Cancel</button>
<button id="exportButton">OK</button>
</div>
</div>
</div>
<div id="objectsList">
<!--div class="object">
<h2>Tux</h2>
<p>Tux is the official mascot of the Linux operating system.</p>
<a href="Website">Website</a>
<a href="">/r/linux</a>
</div-->
</div>
<div id="exportOverlay" class="overlay">
<div id="exportWindow">
<p>Please copy the text below and submit it as a<br>
new text post to <a target="_blank" href="https://www.reddit.com/r/placeAtlas/">/r/placeAtlas</a> on Reddit.</p>
<p>I will then check it and add it to the atlas.</p>
<textarea cols="50" rows="5" id="exportString"></textarea>
<button id="exportCloseButton">Done</button>
</div>
</div>
<div id="author">
Code by <a href="/" target="_blank" rel="author">Roland Rytz</a>. Source on <a target="_blank" href="https://github.com/RolandR/place-atlas">GitHub</a>.
</div>
<script type="text/javascript" src="./pointInPolygon.js?version=1.0"></script>
<script type="text/javascript" src="./atlas.js?version=1.0"></script>
<script type="text/javascript" src="./view.js?version=1.0"></script>
<script type="text/javascript" src="./draw.js?version=1.0"></script>
<script type="text/javascript" src="./main.js?version=1.0"></script>
</body>
</html>

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GNU AFFERO GENERAL PUBLIC LICENSE
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Additional permissions that are applicable to the entire Program shall
be treated as though they were included in this License, to the extent
that they are valid under applicable law. If additional permissions
apply only to part of the Program, that part may be used separately
under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.
When you convey a copy of a covered work, you may at your option
remove any additional permissions from that copy, or from any part of
it. (Additional permissions may be written to require their own
removal in certain cases when you modify the work.) You may place
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for which you have or can give appropriate copyright permission.
Notwithstanding any other provision of this License, for material you
add to a covered work, you may (if authorized by the copyright holders of
that material) supplement the terms of this License with terms:
a) Disclaiming warranty or limiting liability differently from the
terms of sections 15 and 16 of this License; or
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author attributions in that material or in the Appropriate Legal
Notices displayed by works containing it; or
c) Prohibiting misrepresentation of the origin of that material, or
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f) Requiring indemnification of licensors and authors of that
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it) with contractual assumptions of liability to the recipient, for
any liability that these contractual assumptions directly impose on
those licensors and authors.
All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10. If the Program as you
received it, or any part of it, contains a notice stating that it is
governed by this License along with a term that is a further
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of that license document, provided that the further restriction does
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If you add terms to a covered work in accord with this section, you
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where to find the applicable terms.
Additional terms, permissive or non-permissive, may be stated in the
form of a separately written license, or stated as exceptions;
the above requirements apply either way.
8. Termination.
You may not propagate or modify a covered work except as expressly
provided under this License. Any attempt otherwise to propagate or
modify it is void, and will automatically terminate your rights under
this License (including any patent licenses granted under the third
paragraph of section 11).
However, if you cease all violation of this License, then your
license from a particular copyright holder is reinstated (a)
provisionally, unless and until the copyright holder explicitly and
finally terminates your license, and (b) permanently, if the copyright
holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.
Moreover, your license from a particular copyright holder is
reinstated permanently if the copyright holder notifies you of the
violation by some reasonable means, this is the first time you have
received notice of violation of this License (for any work) from that
copyright holder, and you cure the violation prior to 30 days after
your receipt of the notice.
Termination of your rights under this section does not terminate the
licenses of parties who have received copies or rights from you under
this License. If your rights have been terminated and not permanently
reinstated, you do not qualify to receive new licenses for the same
material under section 10.
9. Acceptance Not Required for Having Copies.
You are not required to accept this License in order to receive or
run a copy of the Program. Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance. However,
nothing other than this License grants you permission to propagate or
modify any covered work. These actions infringe copyright if you do
not accept this License. Therefore, by modifying or propagating a
covered work, you indicate your acceptance of this License to do so.
10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically
receives a license from the original licensors, to run, modify and
propagate that work, subject to this License. You are not responsible
for enforcing compliance by third parties with this License.
An "entity transaction" is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an
organization, or merging organizations. If propagation of a covered
work results from an entity transaction, each party to that
transaction who receives a copy of the work also receives whatever
licenses to the work the party's predecessor in interest had or could
give under the previous paragraph, plus a right to possession of the
Corresponding Source of the work from the predecessor in interest, if
the predecessor has it or can get it with reasonable efforts.
You may not impose any further restrictions on the exercise of the
rights granted or affirmed under this License. For example, you may
not impose a license fee, royalty, or other charge for exercise of
rights granted under this License, and you may not initiate litigation
(including a cross-claim or counterclaim in a lawsuit) alleging that
any patent claim is infringed by making, using, selling, offering for
sale, or importing the Program or any portion of it.
11. Patents.
A "contributor" is a copyright holder who authorizes use under this
License of the Program or a work on which the Program is based. The
work thus licensed is called the contributor's "contributor version".
A contributor's "essential patent claims" are all patent claims
owned or controlled by the contributor, whether already acquired or
hereafter acquired, that would be infringed by some manner, permitted
by this License, of making, using, or selling its contributor version,
but do not include claims that would be infringed only as a
consequence of further modification of the contributor version. For
purposes of this definition, "control" includes the right to grant
patent sublicenses in a manner consistent with the requirements of
this License.
Each contributor grants you a non-exclusive, worldwide, royalty-free
patent license under the contributor's essential patent claims, to
make, use, sell, offer for sale, import and otherwise run, modify and
propagate the contents of its contributor version.
In the following three paragraphs, a "patent license" is any express
agreement or commitment, however denominated, not to enforce a patent
(such as an express permission to practice a patent or covenant not to
sue for patent infringement). To "grant" such a patent license to a
party means to make such an agreement or commitment not to enforce a
patent against the party.
If you convey a covered work, knowingly relying on a patent license,
and the Corresponding Source of the work is not available for anyone
to copy, free of charge and under the terms of this License, through a
publicly available network server or other readily accessible means,
then you must either (1) cause the Corresponding Source to be so
available, or (2) arrange to deprive yourself of the benefit of the
patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent
license to downstream recipients. "Knowingly relying" means you have
actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid.
If, pursuant to or in connection with a single transaction or
arrangement, you convey, or propagate by procuring conveyance of, a
covered work, and grant a patent license to some of the parties
receiving the covered work authorizing them to use, propagate, modify
or convey a specific copy of the covered work, then the patent license
you grant is automatically extended to all recipients of the covered
work and works based on it.
A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
specifically granted under this License. You may not convey a covered
work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Remote Network Interaction; Use with the GNU General Public License.
Notwithstanding any other provision of this License, if you modify the
Program, your modified version must prominently offer all users
interacting with it remotely through a computer network (if your version
supports such interaction) an opportunity to receive the Corresponding
Source of your version by providing access to the Corresponding Source
from a network server at no charge, through some standard or customary
means of facilitating copying of software. This Corresponding Source
shall include the Corresponding Source for any work covered by version 3
of the GNU General Public License that is incorporated pursuant to the
following paragraph.
Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU General Public License into a single
combined work, and to convey the resulting work. The terms of this
License will continue to apply to the part which is the covered work,
but the work with which it is combined will remain governed by version
3 of the GNU General Public License.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU Affero General Public License from time to time. Such new versions
will be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU Affero General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU Affero General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU Affero General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<http://www.gnu.org/licenses/>.

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/*
========================================================================
The /r/place Atlas
An Atlas of Reddit's /r/place, with information to each
artwork of the canvas provided by the community.
Copyright (C) 2017 Roland Rytz <roland@draemm.li>
Licensed under the GNU Affero General Public License Version 3
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
For more information, see:
https://draemm.li/various/place-atlas/license.txt
========================================================================
*/
var innerContainer = document.getElementById("innerContainer");
var container = document.getElementById("container");
var canvas = document.getElementById("highlightCanvas");
var context = canvas.getContext("2d");
var zoom = 1;
var zoomOrigin = [0, 50];
var dragging = false;
var lastPosition = [0, 0];
init();
function init(){
var mode = "view";
var args = window.location.search;
if(args){
mode = args.split("mode=")[1];
if(mode){
mode = mode.split("&")[0];
} else {
mode = "view";
}
}
if(mode=="view"){
document.getElementById("viewLink").className = "current";
document.getElementById("drawLink").className = "";
document.getElementById("aboutLink").className = "";
document.getElementById("drawControls").style.display = "none";
document.getElementById("aboutContainer").style.display = "none";
initView();
} else if(mode=="draw"){
document.getElementById("viewLink").className = "";
document.getElementById("drawLink").className = "current";
document.getElementById("aboutLink").className = "";
document.getElementById("drawControls").style.display = "block";
document.getElementById("aboutContainer").style.display = "none";
initDraw();
} else if(mode=="about"){
document.getElementById("viewLink").className = "";
document.getElementById("drawLink").className = "";
document.getElementById("aboutLink").className = "current";
document.getElementById("drawControls").style.display = "none";
document.getElementById("aboutContainer").style.display = "block";
}
applyView();
function applyView(){
//console.log(zoom);
innerContainer.style.height = (zoom*1000)+"px";
innerContainer.style.width = (zoom*1000)+"px";
innerContainer.style.left = (container.clientWidth/2 - innerContainer.clientWidth/2 + zoomOrigin[0])+"px";
innerContainer.style.top = (container.clientHeight/2 - innerContainer.clientHeight/2 + zoomOrigin[1])+"px";
}
function zoomOut(x, y){
zoomOrigin[0] += x - container.clientWidth/2;//((x/container.clientWidth)*2-1);
zoomOrigin[1] += y - container.clientHeight/2;//((y/container.clientHeight)*2-1);
zoomOrigin[0] = zoomOrigin[0]/2;
zoomOrigin[1] = zoomOrigin[1]/2;
zoom = zoom / 2;
applyView();
}
function zoomIn(x, y){
zoomOrigin[0] = zoomOrigin[0]*2;
zoomOrigin[1] = zoomOrigin[1]*2;
zoomOrigin[0] -= x - container.clientWidth/2;//((x/container.clientWidth)*2-1);
zoomOrigin[1] -= y - container.clientHeight/2;//((y/container.clientHeight)*2-1);
zoom = zoom * 2;
applyView();
}
container.addEventListener("dblclick", function(e){
if(e.ctrlKey){
zoomOut(e.layerX, e.layerY);
} else {
zoomIn(e.layerX, e.layerY);
}
});
container.addEventListener("wheel", function(e){
if(e.deltaY > 0){
zoomOut(e.layerX, e.layerY);
} else if(e.deltaY < 0){
zoomIn(e.layerX, e.layerY);
}
});
container.addEventListener("mousedown", function(e){
lastPosition = [e.clientX, e.clientY];
dragging = true;
});
window.addEventListener("mousemove", function(e){
if(dragging){
var deltaX = e.clientX - lastPosition[0];
var deltaY = e.clientY - lastPosition[1];
lastPosition = [e.clientX, e.clientY];
zoomOrigin[0] += deltaX;
zoomOrigin[1] += deltaY;
applyView();
}
});
window.addEventListener("mouseup", function(e){
if(dragging){
dragging = false;
}
});
window.addEventListener("resize", applyView);
}

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/*
The MIT License (MIT)
Copyright (c) 2016 James Halliday
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
function pointIsInPolygon (point, polygon) {
// ray-casting algorithm based on
// http://www.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/pnpoly.html
var x = point[0], y = point[1];
var inside = false;
for (var i = 0, j = polygon.length - 1; i < polygon.length; j = i++) {
var xi = polygon[i][0], yi = polygon[i][1];
var xj = polygon[j][0], yj = polygon[j][1];
var intersect = ((yi > y) != (yj > y))
&& (x < (xj - xi) * (y - yi) / (yj - yi) + xi);
if (intersect) inside = !inside;
}
return inside;
};

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/*
========================================================================
The /r/place Atlas
An Atlas of Reddit's /r/place, with information to each
artwork of the canvas provided by the community.
Copyright (C) 2017 Roland Rytz <roland@draemm.li>
Licensed under the GNU Affero General Public License Version 3
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
For more information, see:
https://draemm.li/various/place-atlas/license.txt
========================================================================
*/
*{
margin: 0px;
padding: 0px;
border: none;
box-sizing: border-box;
}
html, body{
height: 100%;
width: 100%;
}
body{
font-family: sans;
background-color: #333333;
color: #FFFFFF;
overflow: hidden;
}
a{
color: #FFAA00;
text-decoration: none;
}
a:hover{
text-decoration: underline;
}
button{
background-image: linear-gradient(to bottom, #888888, #666666);
border: 1px #000000 solid;
color: #FFFFFF;
text-align: center;
display: inline-block;
padding: 5px;
cursor: pointer;
}
button:disabled,
button:disabled:hover{
background-image: none;
background-color: #666666;
color: #AAAAAA;
cursor: default;
}
button:hover{
background-image: linear-gradient(to bottom, #999999, #777777);
}
input[type="text"],
textArea{
background-color: #444444;
border: 1px #000000 solid;
margin-bottom: 4px;
padding: 5px 5px;
color: #FFFFFF;
box-sizing: border-box;
}
input[type="text"]{
height: 25px;
}
#logo{
padding: 3px;
/*background-color: #FFFFFF;*/
}
h1{
font-weight: 300;
padding: 5px 10px;
display: block;
vertical-align: center;
}
header{
width: 100%;
height: 50px;
background-color: #555555;
border-bottom: 1px #000000 solid;
z-index: 1000;
display: flex;
}
header nav{
display: block;
margin-top: 20px;
}
header nav a{
display: inline-block;
height: 30px;
width: 100px;
background-image: linear-gradient(to bottom, #888888, #666666);
border: 1px #000000 solid;
color: #FFFFFF;
text-align: center;
text-decoration: none;
cursor: pointer;
padding: 5px;
}
header nav a:hover{
background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.6), rgba(180, 180, 180, 0.5));
}
header nav a.current{
background-image: none;
background: #333333;
border-bottom: 1px #333333 solid;
outline: none;
}
#linesCanvas{
position: absolute;
height: calc(100% - 50px);
width: 100%;
z-index: -500;
}
#container{
width: 100%;
height: calc(100% - 50px);
}
#innerContainer{
height: 1000px;
width: 1000px;
position: absolute;
z-index: -1000;
}
#image{
position: absolute;
height: 100%;
width: 100%;
z-index: -1500;
image-rendering: -moz-crisp-edges;
image-rendering: pixelated;
-ms-interpolation-mode: nearest-neighbor;
}
#highlightCanvas{
z-index: -1200;
position: absolute;
height: 100%;
width: 100%;
image-rendering: -moz-crisp-edges;
image-rendering: pixelated;
-ms-interpolation-mode: nearest-neighbor;
}
#objectsList{
width: 300px;
position: absolute;
left: 0px;
top: 50px;
padding: 0px;
max-height: calc(100% - 50px);
overflow-y: auto;
}
.object{
background-color: #555555;
border: 1px #000000 solid;
margin: 10px 0px 0px 10px;
padding: 10px;
}
.object *{
display: block;
}
.object h2{
font-size: 20px;
background-color: #666666;
text-shadow: 1px 1px 0px #000000;
padding: 3px 10px;
margin: 0px -10px 10px -10px;
font-weight: 300;
}
.object a{
background-color: #666666;
text-align: center;
padding: 3px;
margin-bottom: 5px;
}
.object a:hover{
background-color: #777777;
text-decoration: none;
}
.object p{
margin-bottom: 10px;
}
#drawControls{
width: 200px;
max-height: 400px;
background-color: #555555;
border: 1px #000000 solid;
position: absolute;
left: 10px;
top: 60px;
bottom: 10px;
padding: 15px;
overflow-y: auto;
display: none;
}
#drawControls > *{
width: 100%;
display: flex;
justify-content: center;
margin-bottom: 5px;
}
#drawControls > * > *{
flex-grow: 1;
margin-right: 5px;
}
#drawControls > * > *:last-child{
margin-right: 0px;
}
#hint{
display: block;
}
#hint p{
margin-bottom: 10px;
}
#objectInfo{
display: none;
}
#objectInfo input{
width: 100%;
}
#descriptionField{
width: 168px;
height: 70px;
}
#infoButtons{
display: flex;
margin-top: 10px;
}
#infoButtons button{
width: 50px;
flex-grow: 1;
margin-right: 10px;
}
#infoButtons button:last-child{
margin-right: 0px;
}
.overlay{
position: absolute;
top: 0px;
left: 0px;
right: 0px;
bottom: 0px;
background-color: rgba(0, 0, 0, 0.8);
}
#exportWindow{
margin: 50px auto;
padding: 10px;
width: 100%;
height: calc(100% - 100px);
max-width: 500px;
/*max-height: 300px*/;
border: 1px #000000 solid;
background-color: #555555;
display: flex;
flex-direction: column;
overflow-y: auto;
}
#exportWindow *{
flex-shrink: 0;
margin-bottom: 10px;
}
#exportWindow p{
}
#exportString{
flex-grow: 1;
flex-shrink: 0;
}
#exportCloseButton{
margin-bottom: 0px;
width: 100px;
align-self: flex-end;
}
#exportOverlay{
display: none;
}
#author{
position: absolute;
bottom: 10px;
right: 10px;
background-color: rgba(128, 128, 128, 0.2);
padding: 3px;
font-size: 12px;
}
#aboutContainer{
position: absolute;
top: 50px;
left: 0px;
right: 0px;
bottom: 0px;
background-color: #333333;
display: none;
}
#about{
margin: 0px auto;
width: 100%;
max-width: 1000px;
}
#about h2{
font-weight: 300;
font-size: 30px;
margin-top: 30px;
}

251
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View file

@ -0,0 +1,251 @@
/*
========================================================================
The /r/place Atlas
An Atlas of Reddit's /r/place, with information to each
artwork of the canvas provided by the community.
Copyright (C) 2017 Roland Rytz <roland@draemm.li>
Licensed under the GNU Affero General Public License Version 3
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
For more information, see:
https://draemm.li/various/place-atlas/license.txt
========================================================================
*/
function initView(){
var objectsContainer = document.getElementById("objectsList");
var linesCanvas = document.getElementById("linesCanvas");
var linesContext = linesCanvas.getContext("2d");
var backgroundCanvas = document.createElement("canvas");
backgroundCanvas.width = 1000;
backgroundCanvas.height = 1000;
var backgroundContext = backgroundCanvas.getContext("2d");
var hovered = [];
var lastPos = [0, 0];
var fixed = false; // Fix hovered items in place, so that clicking on links is possible
renderBackground();
render();
container.addEventListener("mousemove", function(e){
updateHovering(e);
});
function updateHovering(e){
if(!dragging && !fixed){
var pos = [
(e.clientX - (container.clientWidth/2 - innerContainer.clientWidth/2 + zoomOrigin[0]))/zoom
,(e.clientY - (container.clientHeight/2 - innerContainer.clientHeight/2 + zoomOrigin[1]))/zoom
];
if(pos[0] <= 1000 && pos[0] >= 0 && pos[0] <= 1000 && pos[0] >= 0){
var newHovered = [];
for(var i = 0; i < atlas.length; i++){
if(pointIsInPolygon(pos, atlas[i].path)){
newHovered.push(atlas[i]);
}
}
var changed = false;
if(hovered.length == newHovered.length){
for(var i = 0; i < hovered.length; i++){
if(hovered[i].id != newHovered[i].id){
changed = true;
break;
}
}
} else {
changed = true;
}
if(changed){
hovered = newHovered;
render();
}
}
}
}
function renderBackground(){
backgroundContext.clearRect(0, 0, canvas.width, canvas.height);
backgroundContext.fillStyle = "rgba(0, 0, 0, 0.6)";
backgroundContext.fillRect(0, 0, canvas.width, canvas.height);
for(var i = 0; i < atlas.length; i++){
var path = atlas[i].path;
backgroundContext.beginPath();
if(path[0]){
backgroundContext.moveTo(path[0][0], path[0][1]);
}
for(var p = 1; p < path.length; p++){
backgroundContext.lineTo(path[p][0], path[p][1]);
}
backgroundContext.closePath();
backgroundContext.strokeStyle = "rgba(255, 255, 255, 1)";
backgroundContext.stroke();
}
}
function render(){
context.globalCompositeOperation = "source-over";
context.clearRect(0, 0, canvas.width, canvas.height);
objectsContainer.innerHTML = "";
if(hovered.length > 0){
container.style.cursor = "pointer";
} else {
container.style.cursor = "default";
}
for(var i = 0; i < hovered.length; i++){
var element = document.createElement("div");
element.className = "object";
var html = '<h2>'+hovered[i].name+'</h2>';
if(hovered[i].description){
html += '<p>'+hovered[i].description+'</p>';
}
if(hovered[i].website){
html += '<a target="_blank" href='+hovered[i].website+'>Website</a>';
}
if(hovered[i].subreddit){
if(hovered[i].subreddit.substring(0, 2) == "r/"){
hovered[i].subreddit = "/" + hovered[i].subreddit;
} else if(hovered[i].subreddit.substring(0, 1) != "/"){
hovered[i].subreddit = "/r/" + hovered[i].subreddit;
}
html += '<a target="_blank" href=https://reddit.com'+hovered[i].subreddit+'>'+hovered[i].subreddit+'</a>';
}
element.innerHTML = html;
objectsContainer.appendChild(element);
hovered[i].element = element;
var path = hovered[i].path;
context.beginPath();
if(path[0]){
context.moveTo(path[0][0], path[0][1]);
}
for(var p = 1; p < path.length; p++){
context.lineTo(path[p][0], path[p][1]);
}
context.closePath();
//context.strokeStyle = "rgba(255, 255, 255, 1)";
//context.stroke();
context.globalCompositeOperation = "source-over";
context.fillStyle = "rgba(0, 0, 0, 1)";
context.fill();
}
updateLines();
context.globalCompositeOperation = "source-out";
context.drawImage(backgroundCanvas, 0, 0);
}
function toggleFixed(e){
if(!fixed && hovered.length == 0){
return 0;
}
fixed = !fixed;
if(!fixed){
updateHovering(e);
render();
}
}
function updateLines(){
linesCanvas.width = container.clientWidth;
linesCanvas.height = container.clientHeight;
linesContext.lineCap = "round";
linesContext.lineWidth = Math.max(Math.min(zoom*1.5, 16*1.5), 1);
linesContext.strokeStyle = "#000000";
for(var i = 0; i < hovered.length; i++){
var element = hovered[i].element;
linesContext.beginPath();
linesContext.moveTo(element.offsetLeft + element.clientWidth - 10, element.offsetTop + 20);
linesContext.lineTo(
~~(hovered[i].center[0]*zoom) + innerContainer.offsetLeft// + container.clientWidth/2 - innerContainer.clientWidth/2
,~~(hovered[i].center[1]*zoom) + innerContainer.offsetTop - 50// + container.clientHeight/2 - innerContainer.clientHeight/2
);
linesContext.stroke();
}
linesContext.lineWidth = Math.max(Math.min(zoom, 16), 1);
linesContext.strokeStyle = "#FFFFFF";
for(var i = 0; i < hovered.length; i++){
var element = hovered[i].element;
linesContext.beginPath();
linesContext.moveTo(element.offsetLeft + element.clientWidth - 10, element.offsetTop + 20);
linesContext.lineTo(
~~(hovered[i].center[0]*zoom) + innerContainer.offsetLeft// + container.clientWidth/2 - innerContainer.clientWidth/2
,~~(hovered[i].center[1]*zoom) + innerContainer.offsetTop - 50// + container.clientHeight/2 - innerContainer.clientHeight/2
);
linesContext.stroke();
}
}
window.addEventListener("resize", updateLines);
window.addEventListener("mousemove", updateLines);
window.addEventListener("dblClick", updateLines);
window.addEventListener("wheel", updateLines);
container.addEventListener("mousedown", function(e){
lastPos = [
e.clientX
,e.clientY
];
});
container.addEventListener("mouseup", function(e){
if(Math.abs(lastPos[0] - e.clientX) + Math.abs(lastPos[1] - e.clientY) <= 4){
toggleFixed(e);
}
});
}