本文整理汇总了PHP中rational函数的典型用法代码示例。如果您正苦于以下问题：PHP rational函数的具体用法？PHP rational怎么用？PHP rational使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了rational函数的14个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: formatSanyoData
function formatSanyoData($type, $tag, $intel, $data)
{
if ($type == "ASCII") {
} else {
if ($type == "URATIONAL" || $type == "SRATIONAL") {
$data = unRational($data, $type, $intel);
} else {
if ($type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
$data = rational($data, $type, $intel);
if ($tag == "0200") {
//SpecialMode
if ($data == 0) {
$data = gettext("Normal");
} else {
$data = gettext("Unknown") . ": " . $data;
}
}
if ($tag == "0201") {
//Quality
if ($data == 2) {
$data = gettext("High");
} else {
$data = gettext("Unknown") . ": " . $data;
}
}
if ($tag == "0202") {
//Macro
if ($data == 0) {
$data = gettext("Normal");
} else {
$data = gettext("Unknown") . ": " . $data;
}
}
} else {
if ($type == "UNDEFINED") {
} else {
$data = bin2hex($data);
if ($intel == 1) {
$data = intel2Moto($data);
}
}
}
}
}
return $data;
}示例2: formatData
function formatData($type, $tag, $intel, $data)
{
switch ($type) {
case 'ASCII':
if (($pos = strpos($data, chr(0))) !== false) {
// Search for a null byte and stop there.
$data = substr($data, 0, $pos);
}
if ($tag == '010f') {
$data = ucwords(strtolower(trim($data)));
}
// Format certain kinds of strings nicely (Camera make etc.)
break;
case 'URATIONAL':
case 'SRATIONAL':
switch ($tag) {
case '011a':
// XResolution
// XResolution
case '011b':
// YResolution
$data = round(unRational($data, $type, $intel)) . ' dots per ResolutionUnit';
break;
case '829a':
// Exposure Time
$data = formatExposure(unRational($data, $type, $intel));
break;
case '829d':
// FNumber
$data = 'f/' . unRational($data, $type, $intel);
break;
case '9204':
// ExposureBiasValue
$data = round(unRational($data, $type, $intel), 2) . ' EV';
break;
case '9205':
// ApertureValue
// ApertureValue
case '9202':
// MaxApertureValue
// ApertureValue is given in the APEX Mode. Many thanks to Matthieu Froment for this code
// The formula is : Aperture = 2*log2(FNumber) <=> FNumber = e((Aperture.ln(2))/2)
$datum = exp(unRational($data, $type, $intel) * log(2) / 2);
$data = round($datum, 1);
// Focal is given with a precision of 1 digit.
$data = 'f/' . $datum;
break;
case '920a':
// FocalLength
$data = unRational($data, $type, $intel) . ' mm';
break;
case '9201':
// ShutterSpeedValue
// The ShutterSpeedValue is given in the APEX mode. Many thanks to Matthieu Froment for this code
// The formula is : Shutter = - log2(exposureTime) (Appendix C of EXIF spec.)
// Where shutter is in APEX, log2(exposure) = ln(exposure)/ln(2)
// So final formula is : exposure = exp(-ln(2).shutter)
// The formula can be developed : exposure = 1/(exp(ln(2).shutter))
$datum = exp(unRational($data, $type, $intel) * log(2));
if ($datum != 0) {
$datum = 1 / $datum;
}
$data = formatExposure($datum);
break;
default:
$data = unRational($data, $type, $intel);
break;
}
break;
case 'USHORT':
case 'SSHORT':
case 'ULONG':
case 'SLONG':
case 'FLOAT':
case 'DOUBLE':
$data = rational($data, $type, $intel);
switch ($tag) {
case '0112':
// Orientation
// Example of how all of these tag formatters should be...
switch ($data) {
case 0:
// not set, presume normal
// not set, presume normal
case 1:
$data = gettext('1: Normal (0 deg)');
break;
case 2:
$data = gettext('2: Mirrored');
break;
case 3:
$data = gettext('3: Upside-down');
break;
case 4:
$data = gettext('4: Upside-down Mirrored');
break;
case 5:
$data = gettext('5: 90 deg CW Mirrored');
break;
case 6:
//.........这里部分代码省略.........
示例3: formatGPSData
function formatGPSData($type, $tag, $intel, $data)
{
if ($type == "ASCII") {
if ($tag == "0001" || $tag == "0003") {
// Latitude Reference, Longitude Reference
$data = $data[1] == $data[2] && $data[1] == $data[3] ? $data[0] : $data;
}
} else {
if ($type == "URATIONAL" || $type == "SRATIONAL") {
if ($tag == "0002" || $tag == "0004" || $tag == '0007') {
//Latitude, Longitude, Time
$datum = array();
for ($i = 0; $i < strlen($data); $i = $i + 8) {
array_push($datum, substr($data, $i, 8));
}
$hour = unRational($datum[0], $type, $intel);
$minutes = unRational($datum[1], $type, $intel);
$seconds = unRational($datum[2], $type, $intel);
if ($tag == "0007") {
//Time
$data = $hour . ":" . $minutes . ":" . $seconds;
} else {
$data = $hour + $minutes / 60 + $seconds / 3600;
}
} else {
$data = unRational($data, $type, $intel);
if ($tag == "0006") {
$data .= 'm';
}
}
} else {
if ($type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
$data = rational($data, $type, $intel);
} else {
if ($type == "UNDEFINED") {
} else {
if ($type == "UBYTE") {
$data = bin2hex($data);
if ($intel == 1) {
$num = intel2Moto($data);
}
if ($tag == "0000") {
// VersionID
$data = hexdec(substr($data, 0, 2)) . "." . hexdec(substr($data, 2, 2)) . "." . hexdec(substr($data, 4, 2)) . "." . hexdec(substr($data, 6, 2));
} else {
if ($tag == "0005") {
// Altitude Reference
if ($data == "00000000") {
$data = '+';
} else {
if ($data == "01000000") {
$data = '-';
}
}
}
}
} else {
$data = bin2hex($data);
if ($intel == 1) {
$data = intel2Moto($data);
}
}
}
}
}
}
return $data;
}示例4: formatFujifilmData
function formatFujifilmData($type, $tag, $intel, $data)
{
if ($type == "ASCII") {
} else {
if ($type == "URATIONAL" || $type == "SRATIONAL") {
$data = unRational($data, $type, $intel);
if ($tag == "1011") {
//FlashStrength
$data = $data . " EV";
}
} else {
if ($type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
$data = rational($data, $type, $intel);
if ($tag == "1001") {
//Sharpness
if ($data == 1) {
$data = gettext("Soft");
} else {
if ($data == 2) {
$data = gettext("Soft");
} else {
if ($data == 3) {
$data = gettext("Normal");
} else {
if ($data == 4) {
$data = gettext("Hard");
} else {
if ($data == 5) {
$data = gettext("Hard");
} else {
$data = gettext("Unknown") . ": " . $data;
}
}
}
}
}
}
if ($tag == "1002") {
//WhiteBalance
if ($data == 0) {
$data = gettext("Auto");
} else {
if ($data == 256) {
$data = gettext("Daylight");
} else {
if ($data == 512) {
$data = gettext("Cloudy");
} else {
if ($data == 768) {
$data = gettext("DaylightColor-fluorescence");
} else {
if ($data == 769) {
$data = gettext("DaywhiteColor-fluorescence");
} else {
if ($data == 770) {
$data = gettext("White-fluorescence");
} else {
if ($data == 1024) {
$data = gettext("Incandescence");
} else {
if ($data == 3840) {
$data = gettext("Custom");
} else {
$data = gettext("Unknown") . ": " . $data;
}
}
}
}
}
}
}
}
}
if ($tag == "1003") {
//Color
if ($data == 0) {
$data = gettext("Chroma Saturation Normal(STD)");
} else {
if ($data == 256) {
$data = gettext("Chroma Saturation High");
} else {
if ($data == 512) {
$data = gettext("Chroma Saturation Low(ORG)");
} else {
$data = gettext("Unknown: ") . $data;
}
}
}
}
if ($tag == "1004") {
//Tone
if ($data == 0) {
$data = gettext("Contrast Normal(STD)");
} else {
if ($data == 256) {
$data = gettext("Contrast High(HARD)");
} else {
if ($data == 512) {
$data = gettext("Contrast Low(ORG)");
} else {
//.........这里部分代码省略.........
示例5: formatCanonData
function formatCanonData($type, $tag, $intel, $data, $exif, &$result)
{
$place = 0;
if ($type == "ASCII") {
$result = $data = str_replace("", "", $data);
} else {
if ($type == "URATIONAL" || $type == "SRATIONAL") {
$data = unRational($data, $type, $intel);
if ($tag == "0204") {
//DigitalZoom
$data = $data . "x";
}
} else {
if ($type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
$data = rational($data, $type, $intel);
$result['RAWDATA'] = $data;
if ($tag == "0001") {
//first chunk
$result['Bytes'] = hexdec(intel2Moto(substr($data, $place, 4)));
$place += 4;
//0
if ($result['Bytes'] != strlen($data) / 2) {
return $result;
}
//Bad chunk
$result['Macro'] = hexdec(intel2Moto(substr($data, $place, 4)));
$place += 4;
//1
switch ($result['Macro']) {
case 1:
$result['Macro'] = gettext("Macro");
break;
case 2:
$result['Macro'] = gettext("Normal");
break;
default:
$result['Macro'] = gettext("Unknown");
}
$result['SelfTimer'] = hexdec(intel2Moto(substr($data, $place, 4)));
$place += 4;
//2
switch ($result['SelfTimer']) {
case 0:
$result['SelfTimer'] = gettext("Off");
break;
default:
$result['SelfTimer'] .= gettext("/10s");
}
$result['Quality'] = hexdec(intel2Moto(substr($data, $place, 4)));
$place += 4;
//3
switch ($result['Quality']) {
case 2:
$result['Quality'] = gettext("Normal");
break;
case 3:
$result['Quality'] = gettext("Fine");
break;
case 5:
$result['Quality'] = gettext("Superfine");
break;
default:
$result['Quality'] = gettext("Unknown");
}
$result['Flash'] = hexdec(intel2Moto(substr($data, $place, 4)));
$place += 4;
//4
switch ($result['Flash']) {
case 0:
$result['Flash'] = gettext("Off");
break;
case 1:
$result['Flash'] = gettext("Auto");
break;
case 2:
$result['Flash'] = gettext("On");
break;
case 3:
$result['Flash'] = gettext("Red Eye Reduction");
break;
case 4:
$result['Flash'] = gettext("Slow Synchro");
break;
case 5:
$result['Flash'] = gettext("Auto + Red Eye Reduction");
break;
case 6:
$result['Flash'] = gettext("On + Red Eye Reduction");
break;
case 16:
$result['Flash'] = gettext("External Flash");
break;
default:
$result['Flash'] = gettext("Unknown");
}
$result['DriveMode'] = hexdec(intel2Moto(substr($data, $place, 4)));
$place += 4;
//5
switch ($result['DriveMode']) {
case 0:
//.........这里部分代码省略.........
示例6: formatNikonData
function formatNikonData($type, $tag, $intel, $model, $data)
{
switch ($type) {
case "ASCII":
break;
// do nothing!
// do nothing!
case "URATIONAL":
case "SRATIONAL":
switch ($tag) {
case '0084':
// LensInfo
$minFL = unRational(substr($data, 0, 8), $type, $intel);
$maxFL = unRational(substr($data, 8, 8), $type, $intel);
$minSP = unRational(substr($data, 16, 8), $type, $intel);
$maxSP = unRational(substr($data, 24, 8), $type, $intel);
if ($minFL == $maxFL) {
$data = sprintf('%0.0f f/%0.0f', $minFL, $minSP);
} elseif ($minSP == $maxSP) {
$data = sprintf('%0.0f-%0.0fmm f/%0.1f', $minFL, $maxFL, $minSP);
} else {
$data = sprintf('%0.0f-%0.0fmm f/%0.1f-%0.1f', $minFL, $maxFL, $minSP, $maxSP);
}
break;
case "0085":
if ($model == 1) {
$data = unRational($data, $type, $intel) . " m";
}
//ManualFocusDistance
break;
case "0086":
if ($model == 1) {
$data = unRational($data, $type, $intel) . "x";
}
//DigitalZoom
break;
case "000a":
if ($model == 0) {
$data = unRational($data, $type, $intel) . "x";
}
//DigitalZoom
break;
default:
$data = unRational($data, $type, $intel);
break;
}
break;
case "USHORT":
case $type == "SSHORT":
case $type == "ULONG":
case $type == "SLONG":
case $type == "FLOAT":
case $type == "DOUBLE":
$data = rational($data, $type, $intel);
switch ($tag) {
case "0003":
if ($model == 0) {
//Quality
switch ($data) {
case 1:
$data = gettext("VGA Basic");
break;
case 2:
$data = gettext("VGA Normal");
break;
case 3:
$data = gettext("VGA Fine");
break;
case 4:
$data = gettext("SXGA Basic");
break;
case 5:
$data = gettext("SXGA Normal");
break;
case 6:
$data = gettext("SXGA Fine");
break;
default:
$data = gettext("Unknown") . ": " . $data;
break;
}
}
break;
case "0004":
if ($model == 0) {
//Color
switch ($data) {
case 1:
$data = gettext("Color");
break;
case 2:
$data = gettext("Monochrome");
break;
default:
$data = gettext("Unknown") . ": " . $data;
break;
}
}
break;
case "0005":
//.........这里部分代码省略.........
示例7: formatOlympusData
function formatOlympusData($type, $tag, $intel, $data)
{
if ($type == "ASCII") {
} else {
if ($type == "URATIONAL" || $type == "SRATIONAL") {
$data = unRational($data, $type, $intel);
if ($intel == 1) {
$data = intel2Moto($data);
}
if ($tag == "0204") {
//DigitalZoom
$data = $data . "x";
}
if ($tag == "0205") {
//Unknown2
}
} else {
if ($type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
$data = rational($data, $type, $intel);
if ($tag == "0201") {
//JPEGQuality
if ($data == 1) {
$data = "SQ";
} else {
if ($data == 2) {
$data = "HQ";
} else {
if ($data == 3) {
$data = "SHQ";
} else {
$data = gettext("Unknown") . ": " . $data;
}
}
}
}
if ($tag == "0202") {
//Macro
if ($data == 0) {
$data = "Normal";
} else {
if ($data == 1) {
$data = "Macro";
} else {
$data = gettext("Unknown") . ": " . $data;
}
}
}
} else {
if ($type == "UNDEFINED") {
} else {
$data = bin2hex($data);
if ($intel == 1) {
$data = intel2Moto($data);
}
}
}
}
}
return $data;
}示例8: formatPanasonicData
function formatPanasonicData($type, $tag, $intel, $data)
{
if ($type == "ASCII") {
} else {
if ($type == "UBYTE" || $type == "SBYTE") {
$data = bin2hex($data);
if ($intel == 1) {
$data = intel2Moto($data);
}
$data = hexdec($data);
if ($tag == "000f") {
//AFMode
if ($data == 256) {
$data = "9-area-focusing";
} else {
if ($data == 16) {
$data = "1-area-focusing";
} else {
if ($data == 4096) {
$data = gettext("3-area-focusing (High speed)");
} else {
if ($data == 4112) {
$data = gettext("1-area-focusing (High speed)");
} else {
if ($data == 16) {
$data = gettext("1-area-focusing");
} else {
if ($data == 1) {
$data = gettext("Spot-focusing");
} else {
$data = "Unknown (" . $data . ")";
}
}
}
}
}
}
}
} else {
if ($type == "URATIONAL" || $type == "SRATIONAL") {
$data = unRational($data, $type, $intel);
} else {
if ($type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
$data = rational($data, $type, $intel);
if ($tag == "0001") {
//Image Quality
if ($data == 2) {
$data = gettext("High");
} else {
if ($data == 3) {
$data = gettext("Standard");
} else {
if ($data == 6) {
$data = gettext("Very High");
} else {
if ($data == 7) {
$data = gettext("RAW");
} else {
$data = gettext("Unknown") . " (" . $data . ")";
}
}
}
}
}
if ($tag == "0003") {
//White Balance
if ($data == 1) {
$data = gettext("Auto");
} else {
if ($data == 2) {
$data = gettext("Daylight");
} else {
if ($data == 3) {
$data = gettext("Cloudy");
} else {
if ($data == 4) {
$data = gettext("Halogen");
} else {
if ($data == 5) {
$data = gettext("Manual");
} else {
if ($data == 8) {
$data = gettext("Flash");
} else {
if ($data == 10) {
$data = gettext("Black and White");
} else {
if ($data == 11) {
$data = gettext("Manual");
} else {
$data = gettext("Unknown") . " (" . $data . ")";
}
}
}
}
}
}
}
}
}
//.........这里部分代码省略.........
示例9: formatFujifilmData
function formatFujifilmData($type, $tag, $intel, $data)
{
if ($type == "ASCII") {
} else {
if ($type == "URATIONAL" || $type == "SRATIONAL") {
$data = unRational($data, $type, $intel);
if ($tag == "1011") {
//FlashStrength
$data = $data . " EV";
}
} else {
if ($type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
$data = rational($data, $type, $intel);
if ($tag == "1001") {
//Sharpness
if ($data == 1) {
$data = '!soft!';
} else {
if ($data == 2) {
$data = '!soft!';
} else {
if ($data == 3) {
$data = '!normal!';
} else {
if ($data == 4) {
$data = '!hard!';
} else {
if ($data == 5) {
$data = '!hard!';
} else {
$data = '!unknown!' . ": " . $data;
}
}
}
}
}
}
if ($tag == "1002") {
//WhiteBalance
if ($data == 0) {
$data = '!auto!';
} else {
if ($data == 256) {
$data = '!daylight!';
} else {
if ($data == 512) {
$data = '!cloudy!';
} else {
if ($data == 768) {
$data = '!daylightcolor-fluorescence!';
} else {
if ($data == 769) {
$data = '!daywhitecolor-fluorescence!';
} else {
if ($data == 770) {
$data = '!white-fluorescence!';
} else {
if ($data == 1024) {
$data = '!incandescence!';
} else {
if ($data == 3840) {
$data = '!custom!';
} else {
$data = '!unknown!' . ": " . $data;
}
}
}
}
}
}
}
}
}
if ($tag == "1003") {
//Color
if ($data == 0) {
$data = '!chroma saturation normal(std)!';
} else {
if ($data == 256) {
$data = '!chroma saturation high!';
} else {
if ($data == 512) {
$data = '!chroma saturation low(org)!';
} else {
$data = '!unknown!' . ':' . $data;
}
}
}
}
if ($tag == "1004") {
//Tone
if ($data == 0) {
$data = '!contrast normal(std)!';
} else {
if ($data == 256) {
$data = '!contrast high(hard)!';
} else {
if ($data == 512) {
$data = '!contrast low(org)!';
} else {
//.........这里部分代码省略.........
示例10: formatCanonData
function formatCanonData($type, $tag, $intel, $data, $exif, &$result)
{
$place = 0;
if ($type == "ASCII") {
$result = $data = str_replace("", "", $data);
} else {
if ($type == "URATIONAL" || $type == "SRATIONAL") {
$data = unRational($data, $type, $intel);
if ($tag == "0204") {
//DigitalZoom
$data = $data . "x";
}
} else {
if ($type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
$data = rational($data, $type, $intel);
$result['RAWDATA'] = $data;
if ($tag == "0001") {
//first chunk
$result['Bytes'] = hexdec(intel2Moto(substr($data, $place, 4)));
$place += 4;
//0
if ($result['Bytes'] != strlen($data) / 2) {
return $result;
}
//Bad chunk
$result['Macro'] = hexdec(intel2Moto(substr($data, $place, 4)));
$place += 4;
//1
switch ($result['Macro']) {
case 1:
$result['Macro'] = '!macro!';
break;
case 2:
$result['Macro'] = '!normal!';
break;
default:
$result['Macro'] = '!unknown!';
}
$result['SelfTimer'] = hexdec(intel2Moto(substr($data, $place, 4)));
$place += 4;
//2
switch ($result['SelfTimer']) {
case 0:
$result['SelfTimer'] = '!off!';
break;
default:
$result['SelfTimer'] .= "/10s";
}
$result['Quality'] = hexdec(intel2Moto(substr($data, $place, 4)));
$place += 4;
//3
switch ($result['Quality']) {
case 2:
$result['Quality'] = '!normal!';
break;
case 3:
$result['Quality'] = '!fine!';
break;
case 5:
$result['Quality'] = '!superfine!';
break;
default:
$result['Quality'] = '!unknown!';
}
$result['Flash'] = hexdec(intel2Moto(substr($data, $place, 4)));
$place += 4;
//4
switch ($result['Flash']) {
case 0:
$result['Flash'] = '!off!';
break;
case 1:
$result['Flash'] = '!auto!';
break;
case 2:
$result['Flash'] = '!on!';
break;
case 3:
$result['Flash'] = '!red eye reduction!';
break;
case 4:
$result['Flash'] = '!slow synchro!';
break;
case 5:
$result['Flash'] = '!auto + red eye reduction!';
break;
case 6:
$result['Flash'] = '!on + red eye reduction!';
break;
case 16:
$result['Flash'] = '!external flash!';
break;
default:
$result['Flash'] = '!unknown!';
}
$result['DriveMode'] = hexdec(intel2Moto(substr($data, $place, 4)));
$place += 4;
//5
switch ($result['DriveMode']) {
case 0:
//.........这里部分代码省略.........
示例11: testRationalHelperFunction
public function testRationalHelperFunction()
{
$this->check(rational(), 0, 1);
$this->check(rational(5), 5, 1);
$this->check(rational(3, 2), 3, 2);
}示例12: formatData
function formatData($type, $tag, $intel, $data)
{
switch ($type) {
case 'ASCII':
if (($pos = strpos($data, chr(0))) !== false) {
// Search for a null byte and stop there.
$data = substr($data, 0, $pos);
}
if ($tag == '010f') {
$data = ucwords(strtolower(trim($data)));
}
// Format certain kinds of strings nicely (Camera make etc.)
break;
case 'URATIONAL':
case 'SRATIONAL':
switch ($tag) {
case '011a':
// XResolution
// XResolution
case '011b':
// YResolution
$data = round(unRational($data, $type, $intel)) . ' dots per ResolutionUnit';
break;
case '829a':
// Exposure Time
$data = formatExposure(unRational($data, $type, $intel));
break;
case '829d':
// FNumber
$data = 'f/' . round(unRational($data, $type, $intel), 2);
break;
case '9204':
// ExposureBiasValue (assume signed!)
$data = round(unRational($data, 'SRATIONAL', $intel), 2) . ' EV';
break;
case '9205':
// ApertureValue
// ApertureValue
case '9202':
// MaxApertureValue
// ApertureValue is given in the APEX Mode. Many thanks to Matthieu Froment for this code
// The formula is : Aperture = 2*log2(FNumber) <=> FNumber = e((Aperture.ln(2))/2)
$datum = exp(unRational($data, $type, $intel) * log(2) / 2);
$data = 'f/' . round($datum, 1);
// Focal is given with a precision of 1 digit.
break;
case '920a':
// FocalLength
$data = unRational($data, $type, $intel) . ' mm';
break;
case '9201':
// ShutterSpeedValue
// The ShutterSpeedValue is given in the APEX mode. Many thanks to Matthieu Froment for this code
// The formula is : Shutter = - log2(exposureTime) (Appendix C of EXIF spec.)
// Where shutter is in APEX, log2(exposure) = ln(exposure)/ln(2)
// So final formula is : exposure = exp(-ln(2).shutter)
// The formula can be developed : exposure = 1/(exp(ln(2).shutter))
$datum = exp(unRational($data, $type, $intel) * log(2));
if ($datum != 0) {
$datum = 1 / $datum;
}
$data = formatExposure($datum);
break;
default:
$data = unRational($data, $type, $intel);
break;
}
break;
case 'USHORT':
case 'SSHORT':
case 'ULONG':
case 'SLONG':
case 'FLOAT':
case 'DOUBLE':
$data = rational($data, $type, $intel);
switch ($tag) {
case '0112':
// Orientation
// Example of how all of these tag formatters should be...
switch ($data) {
case 0:
// not set, presume normal
// not set, presume normal
case 1:
$data = '!1: normal (0 deg)!';
break;
case 2:
$data = '!2: mirrored!';
break;
case 3:
$data = '!3: upside-down!';
break;
case 4:
$data = '!4: upside-down mirrored!';
break;
case 5:
$data = '!5: 90 deg ccw mirrored!';
break;
case 6:
$data = '!6: 90 deg cw!';
//.........这里部分代码省略.........
示例13: formatNikonData
function formatNikonData($type, $tag, $intel, $model, $data)
{
switch ($type) {
case "ASCII":
break;
// do nothing!
// do nothing!
case "URATIONAL":
case "SRATIONAL":
switch ($tag) {
case '0084':
// LensInfo
$minFL = unRational(substr($data, 0, 8), $type, $intel);
$maxFL = unRational(substr($data, 8, 8), $type, $intel);
$minSP = unRational(substr($data, 16, 8), $type, $intel);
$maxSP = unRational(substr($data, 24, 8), $type, $intel);
if ($minFL == $maxFL) {
$data = sprintf('%0.0fmm f/%0.1f', $minFL, $minSP);
} elseif ($minSP == $maxSP) {
$data = sprintf('%0.0f-%0.0fmm f/%0.1f', $minFL, $maxFL, $minSP);
} else {
$data = sprintf('%0.0f-%0.0fmm f/%0.1f-%0.1f', $minFL, $maxFL, $minSP, $maxSP);
}
break;
case "0085":
if ($model == 1) {
$data = unRational($data, $type, $intel) . " m";
}
//ManualFocusDistance
break;
case "0086":
if ($model == 1) {
$data = unRational($data, $type, $intel) . "x";
}
//DigitalZoom
break;
case "000a":
if ($model == 0) {
$data = unRational($data, $type, $intel) . "x";
}
//DigitalZoom
break;
default:
$data = unRational($data, $type, $intel);
break;
}
break;
case "USHORT":
case $type == "SSHORT":
case $type == "ULONG":
case $type == "SLONG":
case $type == "FLOAT":
case $type == "DOUBLE":
$data = rational($data, $type, $intel);
switch ($tag) {
case "0003":
if ($model == 0) {
//Quality
switch ($data) {
case 1:
$data = '!vga basic!';
break;
case 2:
$data = '!vga normal!';
break;
case 3:
$data = '!vga fine!';
break;
case 4:
$data = '!sxga basic!';
break;
case 5:
$data = '!sxga normal!';
break;
case 6:
$data = '!sxga fine!';
break;
default:
$data = '!unknown!' . ": " . $data;
break;
}
}
break;
case "0004":
if ($model == 0) {
//Color
switch ($data) {
case 1:
$data = '!color!';
break;
case 2:
$data = '!monochrome!';
break;
default:
$data = '!unknown!' . ": " . $data;
break;
}
}
break;
case "0005":
//.........这里部分代码省略.........
示例14: formatPanasonicData
function formatPanasonicData($type, $tag, $intel, $data)
{
if ($type == "ASCII") {
} else {
if ($type == "UBYTE" || $type == "SBYTE") {
$data = bin2hex($data);
if ($intel == 1) {
$data = intel2Moto($data);
}
$data = hexdec($data);
if ($tag == "000f") {
//AFMode
if ($data == 256) {
$data = "9-area-focusing";
} else {
if ($data == 16) {
$data = "1-area-focusing";
} else {
if ($data == 4096) {
$data = '!3-area-focusing (high speed)!';
} else {
if ($data == 4112) {
$data = '!1-area-focusing (high speed)!';
} else {
if ($data == 16) {
$data = '!1-area-focusing!';
} else {
if ($data == 1) {
$data = '!spot-focusing!';
} else {
$data = '!unknown!' . " (" . $data . ")";
}
}
}
}
}
}
}
} else {
if ($type == "URATIONAL" || $type == "SRATIONAL") {
$data = unRational($data, $type, $intel);
} else {
if ($type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
$data = rational($data, $type, $intel);
if ($tag == "0001") {
//Image Quality
if ($data == 2) {
$data = '!high!';
} else {
if ($data == 3) {
$data = '!standard!';
} else {
if ($data == 6) {
$data = '!very high!';
} else {
if ($data == 7) {
$data = '!raw!';
} else {
$data = '!unknown!' . " (" . $data . ")";
}
}
}
}
}
if ($tag == "0003") {
//White Balance
if ($data == 1) {
$data = '!auto!';
} else {
if ($data == 2) {
$data = '!daylight!';
} else {
if ($data == 3) {
$data = '!cloudy!';
} else {
if ($data == 4) {
$data = '!halogen!';
} else {
if ($data == 5) {
$data = '!manual!';
} else {
if ($data == 8) {
$data = '!flash!';
} else {
if ($data == 10) {
$data = '!black and white!';
} else {
if ($data == 11) {
$data = '!manual!';
} else {
$data = '!unknown!' . " (" . $data . ")";
}
}
}
}
}
}
}
}
}
//.........这里部分代码省略.........