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| <h2>Class |
| <strong>_ScalerHelpers</strong></h2> |
| |
| <div class="doc"> |
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| </div> |
| <h3>Static Methods</h3> |
| <div class="method"><h4 id="degrees"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>degrees</strong>(<a href="../dart_core/num.html">num</a> r) <a class="anchor-link" href="#degrees" |
| title="Permalink to _ScalerHelpers.degrees">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num degrees(num r) { |
| return r * 180.0/Math.PI; |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="radians"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>radians</strong>(<a href="../dart_core/num.html">num</a> d) <a class="anchor-link" href="#radians" |
| title="Permalink to _ScalerHelpers.radians">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num radians(num d) { |
| return d * Math.PI/180.0; |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="clamp"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>clamp</strong>(<a href="../dart_core/num.html">num</a> x, <a href="../dart_core/num.html">num</a> _min, <a href="../dart_core/num.html">num</a> _max) <a class="anchor-link" href="#clamp" |
| title="Permalink to _ScalerHelpers.clamp">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num clamp(num x, num _min, num _max) { |
| return x < _min ? _min : x > _max ? _max : x; |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="mix"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>mix</strong>(<a href="../dart_core/num.html">num</a> x, <a href="../dart_core/num.html">num</a> y, <a href="../dart_core/num.html">num</a> t) <a class="anchor-link" href="#mix" |
| title="Permalink to _ScalerHelpers.mix">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num mix(num x, num y, num t) { |
| return x * (1.0-t) + y * (t); |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="step"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>step</strong>(<a href="../dart_core/num.html">num</a> edge, <a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#step" |
| title="Permalink to _ScalerHelpers.step">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num step(num edge, num x) { |
| if (x < edge) { |
| return 0.0; |
| } |
| return 1.0; |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="smoothstep"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>smoothstep</strong>(<a href="../dart_core/num.html">num</a> edge0, <a href="../dart_core/num.html">num</a> edge1, <a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#smoothstep" |
| title="Permalink to _ScalerHelpers.smoothstep">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num smoothstep(num edge0, num edge1, num x) { |
| num t = 0.0; |
| t = clamp((x - edge0)/(edge1-edge0), 0.0, 1.0); |
| return (t*t)*(3.0-2.0*t); |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="inversesqrt"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>inversesqrt</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#inversesqrt" |
| title="Permalink to _ScalerHelpers.inversesqrt">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num inversesqrt(num x) { |
| return 1.0 / Math.sqrt(x); |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="abs"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>abs</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#abs" |
| title="Permalink to _ScalerHelpers.abs">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num abs(num x) { |
| return x.abs(); |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="ceil"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>ceil</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#ceil" |
| title="Permalink to _ScalerHelpers.ceil">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num ceil(num x) { |
| return x.ceil(); |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="floor"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>floor</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#floor" |
| title="Permalink to _ScalerHelpers.floor">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num floor(num x) { |
| return x.floor(); |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="isnan"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/bool.html">bool</a> <strong>isnan</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#isnan" |
| title="Permalink to _ScalerHelpers.isnan">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static bool isnan(num x) { |
| return x.isNaN(); |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="isInfinite"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/bool.html">bool</a> <strong>isInfinite</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#isInfinite" |
| title="Permalink to _ScalerHelpers.isInfinite">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static bool isInfinite(num x) { |
| return x.isInfinite(); |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="truncate"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>truncate</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#truncate" |
| title="Permalink to _ScalerHelpers.truncate">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num truncate(num x) { |
| return x.truncate(); |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="sign"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>sign</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#sign" |
| title="Permalink to _ScalerHelpers.sign">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num sign(num x) { |
| if (x > 0) { |
| return 1.0; |
| } else if (x == 0.0) { |
| return 0.0; |
| } else { |
| return -1.0; |
| } |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="fract"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>fract</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#fract" |
| title="Permalink to _ScalerHelpers.fract">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num fract(num x) { |
| return x - x.floor(); |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="mod"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>mod</strong>(<a href="../dart_core/num.html">num</a> x, <a href="../dart_core/num.html">num</a> y) <a class="anchor-link" href="#mod" |
| title="Permalink to _ScalerHelpers.mod">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num mod(num x, num y) { |
| return x % y; |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="round"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>round</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#round" |
| title="Permalink to _ScalerHelpers.round">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num round(num x) { |
| return x.round(); |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="roundEven"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>roundEven</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#roundEven" |
| title="Permalink to _ScalerHelpers.roundEven">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num roundEven(num x) { |
| if ( (floor(x)%2==0) && (fract(x)==0.5) ) |
| return _ScalerHelpers.round(x)-1; |
| else |
| return x.round(); |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="exp2"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>exp2</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#exp2" |
| title="Permalink to _ScalerHelpers.exp2">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num exp2(num x) { |
| return x; |
| } |
| </pre> |
| </div> |
| </div> |
| <div class="method"><h4 id="log2"> |
| <span class="show-code">Code</span> |
| <a href="../dart_core/num.html">num</a> <strong>log2</strong>(<a href="../dart_core/num.html">num</a> x) <a class="anchor-link" href="#log2" |
| title="Permalink to _ScalerHelpers.log2">#</a></h4> |
| <div class="doc"> |
| |
| <pre class="source"> |
| static num log2(num x) { |
| |
| } |
| </pre> |
| </div> |
| </div> |
| </div> |
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