147 lines
6.2 KiB
PHP
147 lines
6.2 KiB
PHP
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<?PHP
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foreach ( $_POST as $key )
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{
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}
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$stemlength = (float)$_POST['stem_length'];
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$headangle = (float)$_POST['head_tube_angle'];
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$stemangle = (float)$_POST['stem_angle'];
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$clamp = (float)$_POST['clamp'];
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$spacer = (float)$_POST['spacer'];
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$headset = (float)$_POST['headset'];
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$reach = 0;
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$stack = 0;
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// calculate stack and reach
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$stretch = ($stemlength*cos(deg2rad(90-$headangle+$stemangle))) - (($clamp/2) + $spacer + $headset)*cos(deg2rad($headangle));
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$rise = ($stemlength*sin(deg2rad(90-$headangle+$stemangle))) + (($clamp/2) + $spacer + $headset)*sin(deg2rad($headangle));
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//echo($xser." - (".$stemlength."*cos(deg2rad(90-".$headangle."+".$stemangle."))) - ((".$clamp."/2) + ".$spacer." + ".$headset.")*cos(deg2rad(".$headangle."))");
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//$stack = $yser - ($stemlength*sin(deg2rad(90-$headangle+$stemangle))) - (($clamp/2) + $spacer + $headset)*sin(deg2rad($headangle));
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$rise = round($rise, 0);
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$stretch = round($stretch, 0);
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//echo ("STACK: ".$stack);
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//echo ("REACH: ".$reach);
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//exit();
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?>
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<?PHP include("config.php"); ?>
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<!DOCTYPE html >
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<html lang="en">
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<head>
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<title><:: Welcome to Slowtwitch.com ::>: Stem Rise & Stretch Calculator</title>
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<meta name="KEYWORDS" content="bike, geometry, custom" />
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<meta name="DESCRIPTION" content="Are you trying to calculate the rise and stretch of a stem? Use our calculator to help."/>
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<? include($common_path . "/templates/include_global_head.php"); ?>
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<? include($common_path . "/templates/google_analytics.html"); ?>
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<!-- Begine script for calculator -->
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<script src="js/fit_calculator.js" type="text/javascript" language="JavaScript"></script>
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<!-- end script for calculator -->
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</head>
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<body id="home">
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<? include($common_path . "/ads/ad_wallpaper.html"); ?>
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<div class="container">
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<? include($common_path . "/templates/include_header.php"); ?>
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<div class="main">
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<div class="contentwrapper clearfix">
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<? include("include_breadcrumb.php"); ?>
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<section class="section listings section-has-widgets section-static remove-sidebar">
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<div class="sidebar-b">
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<? include("include_sidebar.php") ?>
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</div>
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<div class="content content-has-widgets">
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<div class="grid">
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<div class="clearfix">
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<h1>F.I.S.T Stem Calculator</h1>
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<hr class="line" />
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<div class="clearfix">
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<div class="col-2-3">
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<h3>Input</h3>
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<div class="dtable form">
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<div class="drow">
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<div class="dcell name">Head Tube Angle</div>
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<div class="dcell divider"></div>
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<div class="dcell value">
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<? echo $headangle."°"; ?>
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</div>
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</div>
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<div class="drow">
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<div class="dcell name">Stem Length</div>
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<div class="dcell divider"></div>
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<div class="dcell value">
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<? echo $stemlength."mm"; ?>
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</div>
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</div>
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<div class="drow">
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<div class="dcell name">Stem Angle</div>
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<div class="dcell divider"></div>
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<div class="dcell value">
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<? echo $stemangle."°"; ?>
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</div>
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</div>
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<div class="drow">
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<div class="dcell name">Stem Clamp Height</div>
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<div class="dcell divider"></div>
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<div class="dcell value">
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<? echo $clamp."mm"; ?>
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</div>
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</div>
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<div class="drow">
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<div class="dcell name">Spacer Height</div>
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<div class="dcell divider"></div>
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<div class="dcell value">
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<? echo $spacer."mm"; ?>
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</div>
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</div>
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<div class="drow">
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<div class="dcell name">Headset Topcap</div>
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<div class="dcell divider"></div>
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<div class="dcell value">
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<? echo $headset."mm"; ?>
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</div>
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</div>
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</div>
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</div>
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<div class="col-1-3">
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<h3>Output</h3>
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<p>Rise: <? echo $rise."mm"; ?></p>
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<p>Stretch: <? echo $stretch."mm"; ?></p>
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</div>
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</div>
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<p class="center"><a href="stem_calc.php" class="btn default">Return to the Stem Calculator</a></p>
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<p>
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Even if the fit is performed correctly, pitfalls loom. You must have the
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tools to accurately find the stack and reach of the bike that fits under the
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rider. The fitter is required to account for the stem length, stem pitch,
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height of the stem clamp, headset upper stack, spacers under the stem if
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any, and of course the choice of aerobar. He then must have an accurate way
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of generating the stack and reach measures, using either a fit bike (best is
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the bike made by Exit Cycling) that accurately generates these values
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(taking into consideration <a href="/Bike_Fit/Fudging_for_negative_reach_123.html">negative reach</a> if applicable), or he must use an external tool, such
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as Serotta's X/Y tool.
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</p>
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</div><!-- end col-2/3 -->
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</div><!-- end grid -->
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</div><!-- end content -->
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</section>
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</div><!-- end contentwrapper -->
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</div> <!-- end main -->
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<? include($common_path . "/templates/include_footer.php") ?>
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</div> <!-- container -->
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</body>
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<? include($common_path . "/templates/include_global_js.php") ?>
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</html>
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