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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `TCategory` trait in crate `nalgebra`."><meta name="keywords" content="rust, rustlang, rust-lang, TCategory"><title>nalgebra::geometry::TCategory - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="shortcut icon" href="http://nalgebra.org/img/favicon.ico"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../nalgebra/index.html'><div class='logo-container'><img src='../../rust-logo.png' alt='logo'></div></a><p class='location'>Trait TCategory</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.check_homogeneous_invariants">check_homogeneous_invariants</a></div><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.has_normalizer">has_normalizer</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../index.html'>nalgebra</a>::<wbr><a href='index.html'>geometry</a></p><script>window.sidebarCurrent = {name: 'TCategory', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../src/nalgebra/geometry/transform.rs.html#21-35' title='goto source code'>[src]</a></span><span class='in-band'>Trait <a href='../index.html'>nalgebra</a>::<wbr><a href='index.html'>geometry</a>::<wbr><a class="trait" href=''>TCategory</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust trait'>pub trait TCategory: <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> {
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fn <a href='#tymethod.check_homogeneous_invariants' class='fnname'>check_homogeneous_invariants</a><N: <a class="trait" href="../../nalgebra/trait.RealField.html" title="trait nalgebra::RealField">RealField</a>, D: <a class="trait" href="../../nalgebra/base/dimension/trait.DimName.html" title="trait nalgebra::base::dimension::DimName">DimName</a>>(<br> mat: &<a class="type" href="../../nalgebra/base/type.MatrixN.html" title="type nalgebra::base::MatrixN">MatrixN</a><N, D><br> ) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a><br> <span class="where">where<br> N::<a class="type" href="../../approx/abs_diff_eq/trait.AbsDiffEq.html#associatedtype.Epsilon" title="type approx::abs_diff_eq::AbsDiffEq::Epsilon">Epsilon</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a>,<br> <a class="struct" href="../../nalgebra/base/default_allocator/struct.DefaultAllocator.html" title="struct nalgebra::base::default_allocator::DefaultAllocator">DefaultAllocator</a>: <a class="trait" href="../../nalgebra/base/allocator/trait.Allocator.html" title="trait nalgebra::base::allocator::Allocator">Allocator</a><N, D, D></span>;
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fn <a href='#method.has_normalizer' class='fnname'>has_normalizer</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> { ... }
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}</pre></div><div class='docblock'><p>Trait implemented by phantom types identifying the projective transformation type.</p>
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<p>NOTE: this trait is not intended to be implemented outside of the <code>nalgebra</code> crate.</p>
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</div>
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<h2 id='required-methods' class='small-section-header'>Required methods<a href='#required-methods' class='anchor'></a></h2><div class='methods'><h3 id='tymethod.check_homogeneous_invariants' class='method'><code id='check_homogeneous_invariants.v'>fn <a href='#tymethod.check_homogeneous_invariants' class='fnname'>check_homogeneous_invariants</a><N: <a class="trait" href="../../nalgebra/trait.RealField.html" title="trait nalgebra::RealField">RealField</a>, D: <a class="trait" href="../../nalgebra/base/dimension/trait.DimName.html" title="trait nalgebra::base::dimension::DimName">DimName</a>>(<br> mat: &<a class="type" href="../../nalgebra/base/type.MatrixN.html" title="type nalgebra::base::MatrixN">MatrixN</a><N, D><br>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> <span class="where fmt-newline">where<br> N::<a class="type" href="../../approx/abs_diff_eq/trait.AbsDiffEq.html#associatedtype.Epsilon" title="type approx::abs_diff_eq::AbsDiffEq::Epsilon">Epsilon</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a>,<br> <a class="struct" href="../../nalgebra/base/default_allocator/struct.DefaultAllocator.html" title="struct nalgebra::base::default_allocator::DefaultAllocator">DefaultAllocator</a>: <a class="trait" href="../../nalgebra/base/allocator/trait.Allocator.html" title="trait nalgebra::base::allocator::Allocator">Allocator</a><N, D, D>, </span></code></h3><div class='docblock'><p>Checks that the given matrix is a valid homogeneous representation of an element of the
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category <code>Self</code>.</p>
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</div></div><span class='loading-content'>Loading content...</span>
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<h2 id='provided-methods' class='small-section-header'>Provided methods<a href='#provided-methods' class='anchor'></a></h2><div class='methods'><h3 id='method.has_normalizer' class='method'><code id='has_normalizer.v'>fn <a href='#method.has_normalizer' class='fnname'>has_normalizer</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></h3><div class='docblock'><p>Indicates whether a <code>Transform</code> with the category <code>Self</code> has a bottom-row different from
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<code>0 0 .. 1</code>.</p>
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</div></div><span class='loading-content'>Loading content...</span>
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<h2 id='implementors' class='small-section-header'>Implementors<a href='#implementors' class='anchor'></a></h2><div class='item-list' id='implementors-list'><h3 id='impl-TCategory' class='impl'><code class='in-band'>impl TCategory for <a class="enum" href="../../nalgebra/geometry/enum.TAffine.html" title="enum nalgebra::geometry::TAffine">TAffine</a></code><a href='#impl-TCategory' class='anchor'></a><a class='srclink' href='../../src/nalgebra/geometry/transform.rs.html#94-111' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.has_normalizer-1' class="method hidden"><code id='has_normalizer.v-1'>fn <a href='#method.has_normalizer-1' class='fnname'>has_normalizer</a>() -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../../src/nalgebra/geometry/transform.rs.html#96-98' title='goto source code'>[src]</a></h4><h4 id='method.check_homogeneous_invariants' class="method hidden"><code id='check_homogeneous_invariants.v-1'>fn <a href='#method.check_homogeneous_invariants' class='fnname'>check_homogeneous_invariants</a><N: <a class="trait" href="../../nalgebra/trait.RealField.html" title="trait nalgebra::RealField">RealField</a>, D: <a class="trait" href="../../nalgebra/base/dimension/trait.DimName.html" title="trait nalgebra::base::dimension::DimName">DimName</a>>(<br> mat: &<a class="type" href="../../nalgebra/base/type.MatrixN.html" title="type nalgebra::base::MatrixN">MatrixN</a><N, D><br>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> <span class="where fmt-newline">where<br> N::<a class="type" href="../../approx/abs_diff_eq/trait.AbsDiffEq.html#associatedtype.Epsilon" title="type approx::abs_diff_eq::AbsDiffEq::Epsilon">Epsilon</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a>,<br> <a class="struct" href="../../nalgebra/base/default_allocator/struct.DefaultAllocator.html" title="struct nalgebra::base::default_allocator::DefaultAllocator">DefaultAllocator</a>: <a class="trait" href="../../nalgebra/base/allocator/trait.Allocator.html" title="trait nalgebra::base::allocator::Allocator">Allocator</a><N, D, D>, </span></code><a class='srclink' href='../../src/nalgebra/geometry/transform.rs.html#101-110' title='goto source code'>[src]</a></h4></div><h3 id='impl-TCategory-1' class='impl'><code class='in-band'>impl TCategory for <a class="enum" href="../../nalgebra/geometry/enum.TGeneral.html" title="enum nalgebra::geometry::TGeneral">TGeneral</a></code><a href='#impl-TCategory-1' class='anchor'></a><a class='srclink' href='../../src/nalgebra/geometry/transform.rs.html#72-81' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.check_homogeneous_invariants-1' class="method hidden"><code id='check_homogeneous_invariants.v-2'>fn <a href='#method.check_homogeneous_invariants-1' class='fnname'>check_homogeneous_invariants</a><N: <a class="trait" href="../../nalgebra/trait.RealField.html" title="trait nalgebra::RealField">RealField</a>, D: <a class="trait" href="../../nalgebra/base/dimension/trait.DimName.html" title="trait nalgebra::base::dimension::DimName">DimName</a>>(<br> _: &<a class="type" href="../../nalgebra/base/type.MatrixN.html" title="type nalgebra::base::MatrixN">MatrixN</a><N, D><br>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> <span class="where fmt-newline">where<br> N::<a class="type" href="../../approx/abs_diff_eq/trait.AbsDiffEq.html#associatedtype.Epsilon" title="type approx::abs_diff_eq::AbsDiffEq::Epsilon">Epsilon</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a>,<br> <a class="struct" href="../../
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src="../../implementors/nalgebra/geometry/trait.TCategory.js">
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