5d6bdd07aa
* Removed check_mobile include which was crashing pages like the admin section (it was previously added to functions.inc.php) * Fixed ABV display in lists * Fixed bitterness calculations. * Removed call-time pass-by-reference in BeerXML parser, since it is no longer supported by PHP
120 lines
5.5 KiB
PHP
120 lines
5.5 KiB
PHP
<?php
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/*
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***********************************************
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* Hydrometer Correction Calculator
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*
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* Adjust a SG hydrometer reading correcting for
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* variance from calibration temperature.
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* Calculation derived from Christopher Lyons
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* hydrometer correction equation in Home Brew
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* Digest 963.
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***********************************************
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*/
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// Default hydrometer calibration temperature in Fahrenheit.
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// This needs to be a user profile variable.
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$CAL_TEMP_DEFAULT = 60;
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$calTemp = isset($_POST["calTemp"])?$_POST["calTemp"]:$CAL_TEMP_DEFAULT;
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$temp = isset($_POST["temp"])?$_POST["temp"]:NULL;
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$sg = isset($_POST["sg"])?$_POST["sg"]:NULL;
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$units = isset($_POST["units"])?$_POST["units"]:NULL;
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if (($action == "default") || ($action == "entry")) { ?>
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<script type="text/javascript" language="JavaScript">
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<!-- Copyright 2003 Bontrager Connection, LLC
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// Code obtained from http://WillMaster.com/
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function CheckRequiredFields() {
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var errormessage = new String();
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// Put field checks below this point.
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if(WithoutContent(document.form1.calTemp.value))
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{ errormessage += "\nHydrometer calibration temperature."; }
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if(WithoutContent(document.form1.temp.value))
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{ errormessage += "\nTemperature of the wort sample."; }
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if(WithoutContent(document.form1.sg.value))
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{ errormessage += "\nSpecific Gravity of the wort sample."; }
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// Put field checks above this point.
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if(errormessage.length > 2) {
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alert('To calculate properly, the following information is needed:\n' + errormessage);
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return false;
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}
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return true;
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}
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function WithoutContent(ss) {
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if(ss.length > 0) { return false; }
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return true;
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}
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//-->
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</script>
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<?php } ?>
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<form name="form1" method="post" action="?page=<?php echo $page; ?>§ion=<?php echo $section; ?>&action=<?php if (($action == "default") || ($action == "entry")) echo 'calculate" onSubmit="return CheckRequiredFields()"'; if ($action == "calculate") echo 'entry"'; ?>>
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<div id="wideWrapper<?php if ($page == "tools") echo "Reference"; else echo "Calc"; ?>">
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<div id="referenceHeader">Hydrometer Correction Calculator</div>
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<?php if (($action == "default") || ($action == "entry")) { ?>
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<table>
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<tr>
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<td class="dataLabelLeft">Specific Gravity:</td>
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<td class="data"><input name="sg" type="text" id="sg" size="5" value="<?php if ($action == "entry") echo $sg; ?>"></td>
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</tr>
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<tr>
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<td class="dataLabelLeft">Temperature:</td>
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<td class="data"><input name="temp" type="text" id="temp" size="5" value="<?php if ($action == "entry") echo $temp; ?>">° </td>
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</tr>
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<tr>
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<td class="dataLabelLeft">Hydrometer Calibration Temperature:</td>
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<td class="data"><input name="calTemp" type="text" id="calTemp" size="5" value="<?php if ($action == "default") echo $CAL_TEMP_DEFAULT; if ($action == "entry") echo $calTemp; ?>">° </td>
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</tr>
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<tr>
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<td class="dataLabelLeft">Units:</td>
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<td class="data">
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<select name="units" id="units">
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<option value="f" <?php if (($action == "default") || (($action == "entry") && ($units == "f"))) echo "SELECTED"; ?>>Fahrenheit </option>
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<option value="c" <?php if (($action == "entry") && ($units == "c")) echo "SELECTED"; ?>>Celsius</option>
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</select>
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</td>
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</tr>
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</table>
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</div>
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<table class="dataTable">
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<tr>
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<td><input type="image" src="<?php echo $imageSrc.$row_colorChoose['themeName']; ?>/button_calculate_<?php echo $row_colorChoose['themeName']; ?>.png" alt="Calculate" class="radiobutton" value="Calculate"></td>
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<?php if ($action == "entry") { ?>
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<td align="right"><a href="?page=<?php echo $page; ?>&section=<?php echo $section; ?>"><img src="<?php echo $imageSrc.$row_colorChoose['themeName']; ?>/button_clear_<?php echo $row_colorChoose['themeName']; ?>.png" border="0" title="Clear" alt="Clear"/></a></td>
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<?php } ?>
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</tr>
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</table>
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<?php }
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if ($action == "calculate") {
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if ($units == "c") {
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// Retain original celsius values for temps to avoid converting back and forth which introduces rounding issues.
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$temp_o = $temp;
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$calTemp_o = $calTemp;
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$temp = $temp * 1.8 + 32;
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$calTemp = $calTemp * 1.8 + 32;
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}
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// Temps must be in F for these formulas.
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$tAdj = (1.313454 - 0.132674 * $temp + 2.057793e-3 * ($temp * $temp) - 2.627634e-6 * ($temp * $temp * $temp)) * 10e-4;
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$calAdj = (1.313454 - 0.132674 * $calTemp + 2.057793e-3 * ($calTemp * $calTemp) - 2.627634e-6 * ($calTemp * $calTemp * $calTemp)) * 10e-4;
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$correctedSG = $sg + ($tAdj - $calAdj);
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if ($units == "c") {
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$temp = $temp_o;
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$calTemp = $calTemp_o;
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}
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echo "<table>";
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echo "<tr><td class=\"dataLabelLeft\">Adjusted Specific Gravity:</td><td class=\"data\">".round($correctedSG, 3)."</td><td class=\"data\"> </td></tr>";
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echo "</table>";
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echo "<tr>";
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echo "<td colspan=\"3\"><br><p>Calculation derived from Christopher Lyons' hydrometer correction equation in Home Brew Digest #963.</p></td>";
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echo "<tr>";
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echo "</table>";
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?>
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<input name="calTemp" type="hidden" id="calTemp" value="<?php echo $calTemp; ?>">
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<input name="temp" type="hidden" id="temp" value="<?php echo $temp; ?>">
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<input name="sg" type="hidden" id="sg" value="<?php echo $sg; ?>">
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<input name="units" type="hidden" id="units" value="<?php echo $units; ?>">
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<?php if (!checkmobile()) { ?><input type="image" src="<?php echo $imageSrc."Brilliant"; ?>/button_back_Brilliant.png" alt="Re-Enter Values" class="calcButton" value="Re-Enter Values" /><?php } else { ?><input type="submit" class="calcButton" value="Go Back" /><?php } ?></div><?php } ?>
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</form>
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