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第一次修复load

master
yuanjiajia 2 years ago
parent
ce3c0d9e36
commit
bb4aa3e866
2 changed files with 63 additions and 40 deletions
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  1. 8
      examples/loadObjDemo.php
  2. 95
      src/core/LoardObj.php

8
examples/loadObjDemo.php
View File

@ -7,7 +7,11 @@ use Blobt\Luxcore\core\LoardObj;
include dirname(dirname(__FILE__)) . "/vendor/autoload.php";
$ply = new LoardObj('/home/yuanjiajia/Desktop/blender/test/3D.obj');
$ply->toPly(LoardObj::TYPE_BINARY);
ini_set('memory_limit','4096M');
$ply = new LoardObj('/home/yuanjiajia/Desktop/blender/test/3D.obj',LoardObj::CLOSE);
$ply = $ply->toPly();
var_dump($ply );
?>

95
src/core/LoardObj.php
View File

@ -32,7 +32,7 @@ class LoardObj
* @param string $objFile 传入obj文件
* @param bool $flipYZ 是否翻转Z轴Y轴
*/
public function __construct( string $objFile, bool $flipYZ = self::OPEN )
public function __construct( string $objFile, bool $flipYZ = self::CLOSE )
{
$this->objFile = $objFile;
$this->readObj();
@ -42,13 +42,16 @@ class LoardObj
/**
* @param string $format 储存 ply模型 的格式
*/
public function toPly( string $format = self::TYPE_BINARY)
public function toPly( string $path = null,string $format = self::TYPE_BINARY)
{
$this->createPly();
return $this->writePly($format);
if( $path == null) $path = getcwd()."/ply";
return $this->writePly( $path, $format );
}
/**
* 读取OBJ模型数据，并拆分模型
*/
@ -79,8 +82,8 @@ class LoardObj
while( !feof($handle) ) // 读取所有的 顶点坐标、UV坐标、顶点法线、面片，并存入到相应的数组
{
$line = fgets( $handle );
$line = ltrim( $line );
$line = explode(' ', $line);
$line = trim( $line );
$line = preg_split("/[\s]+/", $line);
switch( $line[0] )
{
case 'v':
@ -101,6 +104,8 @@ class LoardObj
case 'o':
array_shift($line); // 将 o 开头的行（object名） 作为一个键名（按照 ‘o’ 关键字拆分OBJ模型）
$line = implode("_", $line);
$fileType = mb_detect_encoding($line , array('UTF-8','GBK','LATIN1','BIG5')) ;
$line = mb_convert_encoding($line ,'utf-8' , $fileType);
$keyName = $line;
break;
@ -116,9 +121,6 @@ class LoardObj
}
/**
* 翻转模型的YZ轴向
*/
@ -131,10 +133,15 @@ class LoardObj
$this->objData['v'][$key][] = $value[2];
$this->objData['v'][$key][] = $value[1];
}
}
foreach( $this->objData['vn'] as $key => $value)
{
$this->objData['vn'][$key] = [];
$this->objData['vn'][$key][] = $value[0];
$this->objData['vn'][$key][] = $value[2];
$this->objData['vn'][$key][] = $value[1];
}
}
/**
* 利用已经拆分的 obj 模型数据，生成多个 ply 模型，并将这些模型储存在 plyData 数组中
@ -144,12 +151,11 @@ class LoardObj
foreach( $this->objData['meshs'] as $meshs_key => $meshs_value )
{
var_dump($this->objData);
$ply = [];
$vCount = 0;
$fCount = 0;
foreach( $meshs_value as $face_value ) // 生成顶点和面数据
foreach( $meshs_value as $face_value ) // 生成顶点和面数据
{
$face_value = implode('/', $face_value);
$face_value = explode('/', $face_value);
@ -166,7 +172,8 @@ class LoardObj
break;
case 2:
$vt = array_splice($this->objData['vt'][$v_value-1],2);
if( $v_value == null ) $vt = ['0.0000','0.0000'];
else $vt = array_slice($this->objData['vt'][$v_value-1],0,2);
break;
case 0;
@ -180,11 +187,11 @@ class LoardObj
;
}
}
$ply['face'][$fCount] = implode(' ',$lineFace);
$ply['face'][$fCount] = count($lineFace).' '.implode(' ',$lineFace);
$fCount++;
}
$ply['header'][] = 'ply'; // 生成头部数据
$ply['header'][] = 'ply'; // 生成头部数据
$ply['header'][] = "format ";
$ply['header'][] = "comment Created by reaiyunju, source file: ''";
$ply['header'][] = "element vertex ".$vCount;
@ -200,7 +207,7 @@ class LoardObj
$ply['header'][] = "property list uchar uint vertex_indices";
$ply['header'][] = "end_header";
$this->plyData[$meshs_key] = $ply; // 在 数组plyData 中添加一个 $key 所指名称的ply模型
$this->plyData[$meshs_key] = $ply; // 在 数组plyData 中添加一个 $key 所指名称的ply模型
}
}
@ -209,57 +216,69 @@ class LoardObj
/**
* 将 $plyData 数组中的ply模型 写入硬盘
*/
private function writePly(string $format)
private function writePly( string $path, string $format )
{
if( !is_dir($path) )
{
if( !mkdir( $path,0777,true) )
{
throw new \Exception("!!! Failed to create the specified directory:".$path);
}
}
$plyFile = [];
$handle = null;
foreach( $this->plyData as $key => $value )
{
$plyFile[] = $key."ply";
$handle = fopen( $key."ply",'w+');
$plyFile[] = $path.'/'.$key.".ply";
$handle = fopen( $path.'/'.$key.".ply",'w+');
foreach( $value['header'] as $h_key => $h_value) // 写入头部数据
$data = null;
foreach( $value['header'] as $h_key => $h_value) // 1、写入头部数据
{
if( $h_key == 1 ) $data = $h_value.$format."\n";
else $data = $h_value."\n";
fwrite($handle,$data);
}
foreach( $value['vertex'] as $v_value ) // 写入顶点数据
foreach( $value['vertex'] as $v_value ) // 2、写入顶点数据
{
if( $format == self::TYPE_BINARY ) // 二进制格试写入
if( $format == self::TYPE_BINARY )
{
$data = null;
foreach( explode(' ', $v_value) as $v )
{
$data .= pack('f',$v);
}
fwrite($handle,$data);
fwrite($handle,$data); // 二进制格试写入
}
else
{
$data = $v_value."\n"; // 文本格试写入
fwrite($handle,$data);
$data = $v_value."\n";
fwrite($handle,$data); // 文本格试写入
}
}
foreach( $value['face'] as $f_value ) // 写入面片数据
{
if( $format == self::TYPE_BINARY ) // 二进制格试写入
{
foreach( explode(' ', $f_value) as $v )
{
$data .= pack('f',$v);
}
fwrite($handle,$data);
$data = null;
foreach( $value['face'] as $f_value ) // 3、写入面片数据
{
if( $format == self::TYPE_BINARY )
{
$f_value = explode(' ', $f_value);
$data .= pack("C",$f_value[0]);
unset($f_value[0]);
foreach( $f_value as $v ) $data .= pack("i",$v);// 二进制格试写入
}
else
{
$data = $f_value."\n"; // 文本格试写入
fwrite($handle,$data);
$data .= $f_value."\n"; // 文本格试写入
}
}
fwrite($handle,$data);
fclose($handle);
$handle = null;
}
return $plyFile;
}

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