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cornerstone-math

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Math and computation geometry functionality for cornerstone

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lineSegment from './lineSegment.js'; &nbsp; function rectToLineSegments (rect) <span class="fstat-no" title="function not covered" >{</span> const top = <span class="cstat-no" title="statement not covered" >{</span> start: { x: rect.left, y: rect.top }, end: { x: rect.left + rect.width, y: rect.top &nbsp; } }; const right = <span class="cstat-no" title="statement not covered" >{</span> start: { x: rect.left + rect.width, y: rect.top }, end: { x: rect.left + rect.width, y: rect.top + rect.height &nbsp; } }; const bottom = <span class="cstat-no" title="statement not covered" >{</span> start: { x: rect.left + rect.width, y: rect.top + rect.height }, end: { x: rect.left, y: rect.top + rect.height &nbsp; } }; const left = <span class="cstat-no" title="statement not covered" >{</span> start: { x: rect.left, y: rect.top + rect.height }, end: { x: rect.left, y: rect.top &nbsp; } }; const lineSegments = <span class="cstat-no" title="statement not covered" >[top, right, bottom, left];</span> &nbsp; &nbsp; <span class="cstat-no" title="statement not covered" > return lineSegments;</span> } &nbsp; function distanceToPoint (rect, point) <span class="fstat-no" title="function not covered" >{</span> let minDistance = <span class="cstat-no" title="statement not covered" >655535;</span> const lineSegments = <span class="cstat-no" title="statement not covered" >rectToLineSegments(rect);</span> &nbsp; <span class="cstat-no" title="statement not covered" > lineSegments.forEach(function (segment) <span class="fstat-no" title="function not covered" >{</span></span> const distance = <span class="cstat-no" title="statement not covered" >lineSegment.distanceToPoint(segment, point);</span> &nbsp; <span class="cstat-no" title="statement not covered" > if(distance &lt; minDistance) {</span> <span class="cstat-no" title="statement not covered" > minDistance = distance;</span> } }); &nbsp; <span class="cstat-no" title="statement not covered" > return minDistance;</span> } &nbsp; // Returns top-left and bottom-right points of the rectangle function rectToPoints (rect) <span class="fstat-no" title="function not covered" >{</span> const rectPoints = <span class="cstat-no" title="statement not covered" >{</span> topLeft: { x: rect.left, y: rect.top }, bottomRight: { x: rect.left + rect.width, y: rect.top + rect.height } }; &nbsp; <span class="cstat-no" title="statement not covered" > return rectPoints;</span> } &nbsp; // Returns whether two non-rotated rectangles are intersected function doesIntersect (rect1, rect2) <span class="fstat-no" title="function not covered" >{</span> let intersectLeftRight; let intersectTopBottom; &nbsp; const rect1Points = <span class="cstat-no" title="statement not covered" >rectToPoints(rect1);</span> const rect2Points = <span class="cstat-no" title="statement not covered" >rectToPoints(rect2);</span> &nbsp; <span class="cstat-no" title="statement not covered" > if (rect1.width &gt;= 0) {</span> <span class="cstat-no" title="statement not covered" > if (rect2.width &gt;= 0) {</span> <span class="cstat-no" title="statement not covered" > intersectLeftRight = !((rect1Points.bottomRight.x &lt;= rect2Points.topLeft.x) || (rect2Points.bottomRight.x &lt;= rect1Points.topLeft.x));</span> } else { <span class="cstat-no" title="statement not covered" > intersectLeftRight = !((rect1Points.bottomRight.x &lt;= rect2Points.bottomRight.x) || (rect2Points.topLeft.x &lt;= rect1Points.topLeft.x));</span> } } else <span class="cstat-no" title="statement not covered" >if (rect2.width &gt;= 0) {</span> <span class="cstat-no" title="statement not covered" > intersectLeftRight = !((rect1Points.topLeft.x &lt;= rect2Points.topLeft.x) || (rect2Points.bottomRight.x &lt;= rect1Points.bottomRight.x));</span> } else { <span class="cstat-no" title="statement not covered" > intersectLeftRight = !((rect1Points.topLeft.x &lt;= rect2Points.bottomRight.x) || (rect2Points.topLeft.x &lt;= rect1Points.bottomRight.x));</span> } &nbsp; <span class="cstat-no" title="statement not covered" > if (rect1.height &gt;= 0) {</span> <span class="cstat-no" title="statement not covered" > if (rect2.height &gt;= 0) {</span> <span class="cstat-no" title="statement not covered" > intersectTopBottom = !((rect1Points.bottomRight.y &lt;= rect2Points.topLeft.y) || (rect2Points.bottomRight.y &lt;= rect1Points.topLeft.y));</span> } else { <span class="cstat-no" title="statement not covered" > intersectTopBottom = !((rect1Points.bottomRight.y &lt;= rect2Points.bottomRight.y) || (rect2Points.topLeft.y &lt;= rect1Points.topLeft.y));</span> } } else <span class="cstat-no" title="statement not covered" >if (rect2.height &gt;= 0) {</span> <span class="cstat-no" title="statement not covered" > intersectTopBottom = !((rect1Points.topLeft.y &lt;= rect2Points.topLeft.y) || (rect2Points.bottomRight.y &lt;= rect1Points.bottomRight.y));</span> } else { <span class="cstat-no" title="statement not covered" > intersectTopBottom = !((rect1Points.topLeft.y &lt;= rect2Points.bottomRight.y) || (rect2Points.top &lt;= rect1Points.bottomRight.y));</span> } &nbsp; <span class="cstat-no" title="statement not covered" > return intersectLeftRight &amp;&amp; intersectTopBottom;</span> } &nbsp; // Returns intersection points of two non-rotated rectangles function getIntersectionRect (rect1, rect2) <span class="fstat-no" title="function not covered" >{</span> const intersectRect = <span class="cstat-no" title="statement not covered" >{</span> topLeft: {}, bottomRight: {} }; &nbsp; <span class="cstat-no" title="statement not covered" > if (!doesIntersect(rect1, rect2)) {</span> <span class="cstat-no" title="statement not covered" > return;</span> } &nbsp; const rect1Points = <span class="cstat-no" title="statement not covered" >rectToPoints(rect1);</span> const rect2Points = <span class="cstat-no" title="statement not covered" >rectToPoints(rect2);</span> &nbsp; <span class="cstat-no" title="statement not covered" > if (rect1.width &gt;= 0) {</span> <span class="cstat-no" title="statement not covered" > if (rect2.width &gt;= 0) {</span> <span class="cstat-no" title="statement not covered" > intersectRect.topLeft.x = Math.max(rect1Points.topLeft.x, rect2Points.topLeft.x);</span> <span class="cstat-no" title="statement not covered" > intersectRect.bottomRight.x = Math.min(rect1Points.bottomRight.x, rect2Points.bottomRight.x);</span> } else { <span class="cstat-no" title="statement not covered" > intersectRect.topLeft.x = Math.max(rect1Points.topLeft.x, rect2Points.bottomRight.x);</span> <span class="cstat-no" title="statement not covered" > intersectRect.bottomRight.x = Math.min(rect1Points.bottomRight.x, rect2Points.topLeft.x);</span> } } else <span class="cstat-no" title="statement not covered" >if (rect2.width &gt;= 0) {</span> <span class="cstat-no" title="statement not covered" > intersectRect.topLeft.x = Math.min(rect1Points.topLeft.x, rect2Points.bottomRight.x);</span> <span class="cstat-no" title="statement not covered" > intersectRect.bottomRight.x = Math.max(rect1Points.bottomRight.x, rect2Points.topLeft.x);</span> } else { <span class="cstat-no" title="statement not covered" > intersectRect.topLeft.x = Math.min(rect1Points.topLeft.x, rect2Points.topLeft.x);</span> <span class="cstat-no" title="statement not covered" > intersectRect.bottomRight.x = Math.max(rect1Points.bottomRight.x, rect2Points.bottomRight.x);</span> } &nbsp; <span class="cstat-no" title="statement not covered" > if (rect1.height &gt;= 0) {</span> <span class="cstat-no" title="statement not covered" > if (rect2.height &gt;= 0) {</span> <span class="cstat-no" title="statement not covered" > intersectRect.topLeft.y = Math.max(rect1Points.topLeft.y, rect2Points.topLeft.y);</span> <span class="cstat-no" title="statement not covered" > intersectRect.bottomRight.y = Math.min(rect1Points.bottomRight.y, rect2Points.bottomRight.y);</span> } else { <span class="cstat-no" title="statement not covered" > intersectRect.topLeft.y = Math.max(rect1Points.topLeft.y, rect2Points.bottomRight.y);</span> <span class="cstat-no" title="statement not covered" > intersectRect.bottomRight.y = Math.min(rect1Points.bottomRight.y, rect2Points.topLeft.y);</span> } } else <span class="cstat-no" title="statement not covered" >if (rect2.height &gt;= 0) {</span> <span class="cstat-no" title="statement not covered" > intersectRect.topLeft.y = Math.min(rect1Points.topLeft.y, rect2Points.bottomRight.y);</span> <span class="cstat-no" title="statement not covered" > intersectRect.bottomRight.y = Math.max(rect1Points.bottomRight.y, rect2Points.topLeft.y);</span> } else { <span class="cstat-no" title="statement not covered" > intersectRect.topLeft.y = Math.min(rect1Points.topLeft.y, rect2Points.topLeft.y);</span> <span class="cstat-no" title="statement not covered" > intersectRect.bottomRight.y = Math.max(rect1Points.bottomRight.y, rect2Points.bottomRight.y);</span> } &nbsp; // Returns top-left and bottom-right points of intersected rectangle <span class="cstat-no" title="statement not covered" > return intersectRect;</span> &nbsp; } &nbsp; const rect = { distanceToPoint, getIntersectionRect }; &nbsp; export default rect; &nbsp;</pre></td></tr> </table></pre> <div class='push'></div><!-- for sticky footer --> </div><!-- /wrapper --> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Thu Jun 09 2022 09:24:32 GMT+0200 (Central European Summer Time) </div> </div> <script src="../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="../sorter.js"></script> </body> </html>