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Clipper2-java

A Java port of Clipper2.

Usage

Overview

The interface of Clipper2-java is identical to the original C# version.

The Clipper class provides static methods for clipping, path-offsetting, minkowski-sums and path simplification. For more complex clipping operations (e.g. when clipping open paths or when outputs are expected to include polygons nested within holes of others), use the Clipper64 or ClipperD classes directly.

Maven

Clipper2-java is available as Maven/Gradle artifact via Jitpack.

Example

Paths64subj = newPaths64();
Paths64clip = newPaths64();
subj.add(Clipper.MakePath(newint[] { 100, 50, 10, 79, 65, 2, 65, 98, 10, 21 }));
clip.add(Clipper.MakePath(newint[] { 98, 63, 4, 68, 77, 8, 52, 100, 19, 12 }));
Paths64solution = Clipper.Union(subj, clip, FillRule.NonZero);
solution.get(0).forEach(p -> System.out.println(p.toString()));

Port Info

  • tangiblesoftwaresolutions' C# to Java Converter did the heavy lifting (but then a lot of manual work was required).
  • Wrapper objects are used to replicate C# ref (pass-by-reference) behaviour. This isn't very Java-esque but avoids an unmanageable refactoring effort.
  • Code passes all tests: polygon, line and polytree.
  • Uses lower-case (x, y) for point coordinates.
  • Private local variables have been renamed to their camelCase variant but public methods (i.e. those of Clipper.class) retain their C# PascalCase names (for now...).
  • Benchmarks can be run by including jmh:benchmark to the chosen maven goal.
  • scanlineList from ClipperBase uses Java TreeSet (variable renamed to scanlineSet).

Benchmark

lightbringer's Java port of Clipper1 is benchmarked against this project in the benchmarks. Clipper2-java is faster, which becomes more pronounced input size grows.

Benchmark (edgeCount) Mode Cnt Score Error Units
Clipper1.Intersection 1000 avgt 2 0.209 s/op
Clipper1.Intersection 2000 avgt 2 1.123 s/op
Clipper1.Intersection 4000 avgt 2 9.691 s/op
Clipper2.Intersection 1000 avgt 2 0.130 s/op
Clipper2.Intersection 2000 avgt 2 0.852 s/op
Clipper2.Intersection 4000 avgt 2 3.465 s/op

About

Java port of Clipper2, a Polygon Clipping and Offsetting Library

www.angusj.com/clipper2/Docs/Overview.htm

Resources

Readme
Activity

Stars

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
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(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GitHub - MineFact/Clipper2-java: Java port of Clipper2, a Polygon Clipping and Offsetting Library · GitHub
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Repository files navigation
Clipper2-java
A Java port of Clipper2.
Usage
Overview
The interface of Clipper2-java is identical to the original C# version.
The Clipper class provides static methods for clipping, path-offsetting, minkowski-sums and path simplification.
For more complex clipping operations (e.g. when clipping open paths or when outputs are expected to include polygons nested within holes of others), use the Clipper64 or ClipperD classes directly.
Maven
Clipper2-java is available as Maven/Gradle artifact via Jitpack.
Example
Paths64subj = newPaths64();
Paths64clip = newPaths64();
subj.add(Clipper.MakePath(newint[] { 100, 50, 10, 79, 65, 2, 65, 98, 10, 21 }));
clip.add(Clipper.MakePath(newint[] { 98, 63, 4, 68, 77, 8, 52, 100, 19, 12 }));
Paths64solution = Clipper.Union(subj, clip, FillRule.NonZero);
solution.get(0).forEach(p -> System.out.println(p.toString()));
Port Info
  • tangiblesoftwaresolutions' C# to Java Converter did the heavy lifting (but then a lot of manual work was required).
  • Wrapper objects are used to replicate C# ref (pass-by-reference) behaviour. This isn't very Java-esque but avoids an unmanageable refactoring effort.
  • Code passes all tests: polygon, line and polytree.
  • Uses lower-case (x, y) for point coordinates.
  • Private local variables have been renamed to their camelCase variant but public methods (i.e. those of Clipper.class) retain their C# PascalCase names (for now...).
  • Benchmarks can be run by including jmh:benchmark to the chosen maven goal.
  • scanlineList from ClipperBase uses Java TreeSet (variable renamed to scanlineSet).
Benchmark
lightbringer's Java port of Clipper1 is benchmarked against this project in the benchmarks. Clipper2-java is faster, which becomes more pronounced input size grows.
Benchmark (edgeCount) Mode Cnt Score Error Units
Clipper1.Intersection 1000 avgt 2 0.209 s/op
Clipper1.Intersection 2000 avgt 2 1.123 s/op
Clipper1.Intersection 4000 avgt 2 9.691 s/op
Clipper2.Intersection 1000 avgt 2 0.130 s/op
Clipper2.Intersection 2000 avgt 2 0.852 s/op
Clipper2.Intersection 4000 avgt 2 3.465 s/op

About
Java port of Clipper2, a Polygon Clipping and Offsetting Library
www.angusj.com/clipper2/Docs/Overview.htm
Resources
Readme
Activity
Stars
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - MineFact/Clipper2-java: Java port of Clipper2, a Polygon Clipping and Offsetting Library · GitHub
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Repository files navigation
Clipper2-java
A Java port of Clipper2.
Usage
Overview
The interface of Clipper2-java is identical to the original C# version.
The Clipper class provides static methods for clipping, path-offsetting, minkowski-sums and path simplification.
For more complex clipping operations (e.g. when clipping open paths or when outputs are expected to include polygons nested within holes of others), use the Clipper64 or ClipperD classes directly.
Maven
Clipper2-java is available as Maven/Gradle artifact via Jitpack.
Example
Paths64subj = newPaths64();
Paths64clip = newPaths64();
subj.add(Clipper.MakePath(newint[] { 100, 50, 10, 79, 65, 2, 65, 98, 10, 21 }));
clip.add(Clipper.MakePath(newint[] { 98, 63, 4, 68, 77, 8, 52, 100, 19, 12 }));
Paths64solution = Clipper.Union(subj, clip, FillRule.NonZero);
solution.get(0).forEach(p -> System.out.println(p.toString()));
Port Info
  • tangiblesoftwaresolutions' C# to Java Converter did the heavy lifting (but then a lot of manual work was required).
  • Wrapper objects are used to replicate C# ref (pass-by-reference) behaviour. This isn't very Java-esque but avoids an unmanageable refactoring effort.
  • Code passes all tests: polygon, line and polytree.
  • Uses lower-case (x, y) for point coordinates.
  • Private local variables have been renamed to their camelCase variant but public methods (i.e. those of Clipper.class) retain their C# PascalCase names (for now...).
  • Benchmarks can be run by including jmh:benchmark to the chosen maven goal.
  • scanlineList from ClipperBase uses Java TreeSet (variable renamed to scanlineSet).
Benchmark
lightbringer's Java port of Clipper1 is benchmarked against this project in the benchmarks. Clipper2-java is faster, which becomes more pronounced input size grows.
Benchmark (edgeCount) Mode Cnt Score Error Units
Clipper1.Intersection 1000 avgt 2 0.209 s/op
Clipper1.Intersection 2000 avgt 2 1.123 s/op
Clipper1.Intersection 4000 avgt 2 9.691 s/op
Clipper2.Intersection 1000 avgt 2 0.130 s/op
Clipper2.Intersection 2000 avgt 2 0.852 s/op
Clipper2.Intersection 4000 avgt 2 3.465 s/op

About
Java port of Clipper2, a Polygon Clipping and Offsetting Library
www.angusj.com/clipper2/Docs/Overview.htm
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - MineFact/Clipper2-java: Java port of Clipper2, a Polygon Clipping and Offsetting Library · GitHub
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Repository files navigation
Clipper2-java
A Java port of Clipper2.
Usage
Overview
The interface of Clipper2-java is identical to the original C# version.
The Clipper class provides static methods for clipping, path-offsetting, minkowski-sums and path simplification.
For more complex clipping operations (e.g. when clipping open paths or when outputs are expected to include polygons nested within holes of others), use the Clipper64 or ClipperD classes directly.
Maven
Clipper2-java is available as Maven/Gradle artifact via Jitpack.
Example
Paths64subj = newPaths64();
Paths64clip = newPaths64();
subj.add(Clipper.MakePath(newint[] { 100, 50, 10, 79, 65, 2, 65, 98, 10, 21 }));
clip.add(Clipper.MakePath(newint[] { 98, 63, 4, 68, 77, 8, 52, 100, 19, 12 }));
Paths64solution = Clipper.Union(subj, clip, FillRule.NonZero);
solution.get(0).forEach(p -> System.out.println(p.toString()));
Port Info
  • tangiblesoftwaresolutions' C# to Java Converter did the heavy lifting (but then a lot of manual work was required).
  • Wrapper objects are used to replicate C# ref (pass-by-reference) behaviour. This isn't very Java-esque but avoids an unmanageable refactoring effort.
  • Code passes all tests: polygon, line and polytree.
  • Uses lower-case (x, y) for point coordinates.
  • Private local variables have been renamed to their camelCase variant but public methods (i.e. those of Clipper.class) retain their C# PascalCase names (for now...).
  • Benchmarks can be run by including jmh:benchmark to the chosen maven goal.
  • scanlineList from ClipperBase uses Java TreeSet (variable renamed to scanlineSet).
Benchmark
lightbringer's Java port of Clipper1 is benchmarked against this project in the benchmarks. Clipper2-java is faster, which becomes more pronounced input size grows.
Benchmark (edgeCount) Mode Cnt Score Error Units
Clipper1.Intersection 1000 avgt 2 0.209 s/op
Clipper1.Intersection 2000 avgt 2 1.123 s/op
Clipper1.Intersection 4000 avgt 2 9.691 s/op
Clipper2.Intersection 1000 avgt 2 0.130 s/op
Clipper2.Intersection 2000 avgt 2 0.852 s/op
Clipper2.Intersection 4000 avgt 2 3.465 s/op

About
Java port of Clipper2, a Polygon Clipping and Offsetting Library
www.angusj.com/clipper2/Docs/Overview.htm
Resources
Readme
Activity
Stars
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
GitHub - MineFact/Clipper2-java: Java port of Clipper2, a Polygon Clipping and Offsetting Library · GitHub
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Repository files navigation
Clipper2-java
A Java port of Clipper2.
Usage
Overview
The interface of Clipper2-java is identical to the original C# version.
The Clipper class provides static methods for clipping, path-offsetting, minkowski-sums and path simplification.
For more complex clipping operations (e.g. when clipping open paths or when outputs are expected to include polygons nested within holes of others), use the Clipper64 or ClipperD classes directly.
Maven
Clipper2-java is available as Maven/Gradle artifact via Jitpack.
Example
Paths64subj = newPaths64();
Paths64clip = newPaths64();
subj.add(Clipper.MakePath(newint[] { 100, 50, 10, 79, 65, 2, 65, 98, 10, 21 }));
clip.add(Clipper.MakePath(newint[] { 98, 63, 4, 68, 77, 8, 52, 100, 19, 12 }));
Paths64solution = Clipper.Union(subj, clip, FillRule.NonZero);
solution.get(0).forEach(p -> System.out.println(p.toString()));
Port Info
  • tangiblesoftwaresolutions' C# to Java Converter did the heavy lifting (but then a lot of manual work was required).
  • Wrapper objects are used to replicate C# ref (pass-by-reference) behaviour. This isn't very Java-esque but avoids an unmanageable refactoring effort.
  • Code passes all tests: polygon, line and polytree.
  • Uses lower-case (x, y) for point coordinates.
  • Private local variables have been renamed to their camelCase variant but public methods (i.e. those of Clipper.class) retain their C# PascalCase names (for now...).
  • Benchmarks can be run by including jmh:benchmark to the chosen maven goal.
  • scanlineList from ClipperBase uses Java TreeSet (variable renamed to scanlineSet).
Benchmark
lightbringer's Java port of Clipper1 is benchmarked against this project in the benchmarks. Clipper2-java is faster, which becomes more pronounced input size grows.
Benchmark (edgeCount) Mode Cnt Score Error Units
Clipper1.Intersection 1000 avgt 2 0.209 s/op
Clipper1.Intersection 2000 avgt 2 1.123 s/op
Clipper1.Intersection 4000 avgt 2 9.691 s/op
Clipper2.Intersection 1000 avgt 2 0.130 s/op
Clipper2.Intersection 2000 avgt 2 0.852 s/op
Clipper2.Intersection 4000 avgt 2 3.465 s/op

About
Java port of Clipper2, a Polygon Clipping and Offsetting Library
www.angusj.com/clipper2/Docs/Overview.htm
Resources
Readme
Activity
Stars
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
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}
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var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - MineFact/Clipper2-java: Java port of Clipper2, a Polygon Clipping and Offsetting Library · GitHub
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README.md
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Repository files navigation
Clipper2-java
A Java port of Clipper2.
Usage
Overview
The interface of Clipper2-java is identical to the original C# version.
The Clipper class provides static methods for clipping, path-offsetting, minkowski-sums and path simplification.
For more complex clipping operations (e.g. when clipping open paths or when outputs are expected to include polygons nested within holes of others), use the Clipper64 or ClipperD classes directly.
Maven
Clipper2-java is available as Maven/Gradle artifact via Jitpack.
Example
Paths64subj = newPaths64();
Paths64clip = newPaths64();
subj.add(Clipper.MakePath(newint[] { 100, 50, 10, 79, 65, 2, 65, 98, 10, 21 }));
clip.add(Clipper.MakePath(newint[] { 98, 63, 4, 68, 77, 8, 52, 100, 19, 12 }));
Paths64solution = Clipper.Union(subj, clip, FillRule.NonZero);
solution.get(0).forEach(p -> System.out.println(p.toString()));
Port Info
  • tangiblesoftwaresolutions' C# to Java Converter did the heavy lifting (but then a lot of manual work was required).
  • Wrapper objects are used to replicate C# ref (pass-by-reference) behaviour. This isn't very Java-esque but avoids an unmanageable refactoring effort.
  • Code passes all tests: polygon, line and polytree.
  • Uses lower-case (x, y) for point coordinates.
  • Private local variables have been renamed to their camelCase variant but public methods (i.e. those of Clipper.class) retain their C# PascalCase names (for now...).
  • Benchmarks can be run by including jmh:benchmark to the chosen maven goal.
  • scanlineList from ClipperBase uses Java TreeSet (variable renamed to scanlineSet).
Benchmark
lightbringer's Java port of Clipper1 is benchmarked against this project in the benchmarks. Clipper2-java is faster, which becomes more pronounced input size grows.
Benchmark (edgeCount) Mode Cnt Score Error Units
Clipper1.Intersection 1000 avgt 2 0.209 s/op
Clipper1.Intersection 2000 avgt 2 1.123 s/op
Clipper1.Intersection 4000 avgt 2 9.691 s/op
Clipper2.Intersection 1000 avgt 2 0.130 s/op
Clipper2.Intersection 2000 avgt 2 0.852 s/op
Clipper2.Intersection 4000 avgt 2 3.465 s/op

About
Java port of Clipper2, a Polygon Clipping and Offsetting Library
www.angusj.com/clipper2/Docs/Overview.htm
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - MineFact/Clipper2-java: Java port of Clipper2, a Polygon Clipping and Offsetting Library · GitHub
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Clipper2-java
A Java port of Clipper2.
Usage
Overview
The interface of Clipper2-java is identical to the original C# version.
The Clipper class provides static methods for clipping, path-offsetting, minkowski-sums and path simplification.
For more complex clipping operations (e.g. when clipping open paths or when outputs are expected to include polygons nested within holes of others), use the Clipper64 or ClipperD classes directly.
Maven
Clipper2-java is available as Maven/Gradle artifact via Jitpack.
Example
Paths64subj = newPaths64();
Paths64clip = newPaths64();
subj.add(Clipper.MakePath(newint[] { 100, 50, 10, 79, 65, 2, 65, 98, 10, 21 }));
clip.add(Clipper.MakePath(newint[] { 98, 63, 4, 68, 77, 8, 52, 100, 19, 12 }));
Paths64solution = Clipper.Union(subj, clip, FillRule.NonZero);
solution.get(0).forEach(p -> System.out.println(p.toString()));
Port Info
  • tangiblesoftwaresolutions' C# to Java Converter did the heavy lifting (but then a lot of manual work was required).
  • Wrapper objects are used to replicate C# ref (pass-by-reference) behaviour. This isn't very Java-esque but avoids an unmanageable refactoring effort.
  • Code passes all tests: polygon, line and polytree.
  • Uses lower-case (x, y) for point coordinates.
  • Private local variables have been renamed to their camelCase variant but public methods (i.e. those of Clipper.class) retain their C# PascalCase names (for now...).
  • Benchmarks can be run by including jmh:benchmark to the chosen maven goal.
  • scanlineList from ClipperBase uses Java TreeSet (variable renamed to scanlineSet).
Benchmark
lightbringer's Java port of Clipper1 is benchmarked against this project in the benchmarks. Clipper2-java is faster, which becomes more pronounced input size grows.
Benchmark (edgeCount) Mode Cnt Score Error Units
Clipper1.Intersection 1000 avgt 2 0.209 s/op
Clipper1.Intersection 2000 avgt 2 1.123 s/op
Clipper1.Intersection 4000 avgt 2 9.691 s/op
Clipper2.Intersection 1000 avgt 2 0.130 s/op
Clipper2.Intersection 2000 avgt 2 0.852 s/op
Clipper2.Intersection 4000 avgt 2 3.465 s/op

About
Java port of Clipper2, a Polygon Clipping and Offsetting Library
www.angusj.com/clipper2/Docs/Overview.htm
Resources
Readme
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
GitHub - MineFact/Clipper2-java: Java port of Clipper2, a Polygon Clipping and Offsetting Library · GitHub
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Repository files navigation
Clipper2-java
A Java port of Clipper2.
Usage
Overview
The interface of Clipper2-java is identical to the original C# version.
The Clipper class provides static methods for clipping, path-offsetting, minkowski-sums and path simplification.
For more complex clipping operations (e.g. when clipping open paths or when outputs are expected to include polygons nested within holes of others), use the Clipper64 or ClipperD classes directly.
Maven
Clipper2-java is available as Maven/Gradle artifact via Jitpack.
Example
Paths64subj = newPaths64();
Paths64clip = newPaths64();
subj.add(Clipper.MakePath(newint[] { 100, 50, 10, 79, 65, 2, 65, 98, 10, 21 }));
clip.add(Clipper.MakePath(newint[] { 98, 63, 4, 68, 77, 8, 52, 100, 19, 12 }));
Paths64solution = Clipper.Union(subj, clip, FillRule.NonZero);
solution.get(0).forEach(p -> System.out.println(p.toString()));
Port Info
  • tangiblesoftwaresolutions' C# to Java Converter did the heavy lifting (but then a lot of manual work was required).
  • Wrapper objects are used to replicate C# ref (pass-by-reference) behaviour. This isn't very Java-esque but avoids an unmanageable refactoring effort.
  • Code passes all tests: polygon, line and polytree.
  • Uses lower-case (x, y) for point coordinates.
  • Private local variables have been renamed to their camelCase variant but public methods (i.e. those of Clipper.class) retain their C# PascalCase names (for now...).
  • Benchmarks can be run by including jmh:benchmark to the chosen maven goal.
  • scanlineList from ClipperBase uses Java TreeSet (variable renamed to scanlineSet).
Benchmark
lightbringer's Java port of Clipper1 is benchmarked against this project in the benchmarks. Clipper2-java is faster, which becomes more pronounced input size grows.
Benchmark (edgeCount) Mode Cnt Score Error Units
Clipper1.Intersection 1000 avgt 2 0.209 s/op
Clipper1.Intersection 2000 avgt 2 1.123 s/op
Clipper1.Intersection 4000 avgt 2 9.691 s/op
Clipper2.Intersection 1000 avgt 2 0.130 s/op
Clipper2.Intersection 2000 avgt 2 0.852 s/op
Clipper2.Intersection 4000 avgt 2 3.465 s/op

About
Java port of Clipper2, a Polygon Clipping and Offsetting Library
www.angusj.com/clipper2/Docs/Overview.htm
Resources
Readme
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages