Inserting RasterImage using image buffer

LoveArx · 发表于 2016-9-6 08:30:00

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如果你不需要保存插入的光栅图像的路径的话，可以使用AcDbRasterImageDef::setImage方法。AcDbRasterImageDef::setImage需要一个指向ATIL图像对象的指针，在下面的示例代码红，图像缓冲器从图像和ATIL图像读取信息，使用ATIL图像的指针作为使用AcDbRasterImageDef::setImage 的定义。
为了使用下面的代码，你需要从ObjectARX SDK folder under "\utils\Atil"目录INCLUE和LIB需要的文件。

The AcDbRasterImageDef::setImage can be used, if you do not want to include the image file path while inserting a raster image. This can be considered another approach to accomplish what is explained in this blog post. The AcDbRasterImageDef::setImage method requires a pointer to an ATIL image. In this sample code, the image buffer is read from the image and is used to create an ATIL image. The ATIL image pointer is used with the AcDbRasterImageDef::setImage to create a raster image definition. To build this sample code, you will need the include and library files from the ObjectARX SDK folder under "\utils\Atil".

static void AdskInsertImage(void)
{
// Image path to use for the RasterImageDef
AcString imagePath(ACRX_T("C:\\Temp\\Test.png"));
// Load the image to get access to its image buffer
AcTcImage tc;
tc.Load(imagePath);
HBITMAP bmp=0;
tc.GetHBITMAP(RGB(0xff,0xff,0xff),bmp);
if (bmp == NULL)
return;
BITMAP _bmp={0};
GetObject(bmp,sizeof BITMAP,&_bmp);
HDC hdcScr=GetDC(NULL);
HDC hdcMem=CreateCompatibleDC(hdcScr);
SelectObject(hdcMem,bmp);
// Create an Atil::Image.
// The AcDbRasterImageDef::setImage requires it
Atil::ImagePixel initialImage;
initialImage.setToZero();
initialImage.type = Atil::DataModelAttributes::kRgba;
initialImage.value.rgba = 0xff000000;
Atil::Size size(_bmp.bmWidth, _bmp.bmHeight);
const Atil::RgbModel *pDm = new Atil::RgbModel(
Atil::RgbModelAttributes::k4Channels,
Atil::DataModelAttributes::kBlueGreenRedAlpha);
Atil::Image *pAtilImage = new Atil::Image(
size, pDm, initialImage);
// Write the image data on to the Atil image
// using an Image Context
Atil::Offset upperLeft(0,0);
Atil::ImageContext *pImgContext
= pAtilImage->createContext(
Atil::ImageContext::kWrite,
size,
upperLeft
);
if (pImgContext != NULL)
{
for (int xf=0;xf<_bmp.bmWidth;xf++)
{
for (int yf=0;yf<_bmp.bmHeight;yf++)
{
BYTE alpha=0x0;
COLORREF pix=GetPixel(hdcMem,xf,yf);
BYTE rr = (pix&0xff);
BYTE gg = (pix>>8)&0xff;
BYTE bb = (pix>>16)&0xff;
// Alpha channel to account for transparency
if ((rr!=0xff) || (gg!=0xff) || (bb!=0xff))
alpha=0xff;
Atil::RgbColor p;
p.set(rr, gg, bb, alpha);
pImgContext->put32(xf, yf, p);
}
}
}
pImgContext->flush();
delete pImgContext;
bool isImageValid = pAtilImage->isValid();
ASSERT(isImageValid);
// Create a RasterImageDef and set the image
// from the Atil image
AcDbRasterImageDef *pImageDef = new AcDbRasterImageDef();
Acad::ErrorStatus es = pImageDef->setImage(
pAtilImage, NULL);
// Insert the RasterImageDef and create a RasterImage
// using it
es = InsertImageInDwg(pImageDef);
if(es != Acad::eOk)
{
delete pImageDef;
return;
}
// Cleanup
DeleteDC(hdcMem);
ReleaseDC(NULL,hdcScr);
DeleteObject( bmp);
}

static void AdskInsertImage(void) 
{ 
    // Image path to use for the RasterImageDef 
    AcString imagePath(ACRX_T("C:\\Temp\\Test.png")); 
 
    // Load the image to get access to its image buffer 
    AcTcImage tc; 
    tc.Load(imagePath); 
 
    HBITMAP bmp=0; 
    tc.GetHBITMAP(RGB(0xff,0xff,0xff),bmp); 
 
    if (bmp == NULL) 
        return; 
 
    BITMAP _bmp={0}; 
    GetObject(bmp,sizeof BITMAP,&_bmp); 
 
    HDC hdcScr=GetDC(NULL); 
    HDC    hdcMem=CreateCompatibleDC(hdcScr); 
    SelectObject(hdcMem,bmp); 
 
    // Create an Atil::Image. 
    // The AcDbRasterImageDef::setImage requires it 
    Atil::ImagePixel initialImage; 
    initialImage.setToZero(); 
    initialImage.type = Atil::DataModelAttributes::kRgba; 
    initialImage.value.rgba = 0xff000000; 
 
    Atil::Size size(_bmp.bmWidth, _bmp.bmHeight); 
    const Atil::RgbModel *pDm = new Atil::RgbModel( 
        Atil::RgbModelAttributes::k4Channels, 
        Atil::DataModelAttributes::kBlueGreenRedAlpha); 
 
    Atil::Image *pAtilImage = new Atil::Image( 
                                     size, pDm, initialImage); 
 
    // Write the image data on to the Atil image 
    // using an Image Context 
    Atil::Offset upperLeft(0,0); 
    Atil::ImageContext *pImgContext 
        = pAtilImage->createContext( 
                                    Atil::ImageContext::kWrite, 
                                    size, 
                                    upperLeft 
                                    ); 
    if (pImgContext != NULL) 
    { 
        for (int xf=0;xf<_bmp.bmWidth;xf++) 
        { 
            for (int yf=0;yf<_bmp.bmHeight;yf++) 
            { 
                BYTE alpha=0x0; 
 
                COLORREF pix=GetPixel(hdcMem,xf,yf); 
 
                BYTE rr = (pix&0xff); 
                BYTE gg = (pix>>8)&0xff; 
                BYTE bb = (pix>>16)&0xff; 
 
                // Alpha channel to account for transparency 
                if ((rr!=0xff) || (gg!=0xff) || (bb!=0xff)) 
                    alpha=0xff; 
 
                Atil::RgbColor p; 
                p.set(rr, gg, bb, alpha); 
                pImgContext->put32(xf, yf, p); 
            } 
        } 
 
    } 
    pImgContext->flush(); 
    delete pImgContext; 
 
    bool isImageValid = pAtilImage->isValid(); 
    ASSERT(isImageValid); 
 
    // Create a RasterImageDef and set the image 
    // from the Atil image 
    AcDbRasterImageDef *pImageDef = new AcDbRasterImageDef(); 
    Acad::ErrorStatus es = pImageDef->setImage( 
                                            pAtilImage, NULL); 
 
    // Insert the RasterImageDef and create a RasterImage 
    // using it 
    es = InsertImageInDwg(pImageDef); 
    if(es != Acad::eOk) 
    { 
        delete pImageDef; 
        return; 
    } 
 
    // Cleanup 
    DeleteDC(hdcMem); 
    ReleaseDC(NULL,hdcScr); 
 
    DeleteObject( bmp); 
}

[it618postdisplay>0]

static Acad::ErrorStatus InsertImageInDwg(
AcDbRasterImageDef *pImageDef)
{
Acad::ErrorStatus es;
if(! pImageDef->isLoaded())
{
es = pImageDef->load();
if(es != Acad::eOk)
return es;
}
AcApDocument *pActiveDoc = acDocManager->mdiActiveDocument();
AcDbDatabase *pDB = pActiveDoc->database();
// Get the image dictionary
// Create it if not available already
AcDbObjectId dictID
= AcDbRasterImageDef::imageDictionary(pDB);
if(dictID == AcDbObjectId::kNull)
{
es = AcDbRasterImageDef::createImageDictionary(
pDB, dictID);
if(es != Acad::eOk)
return es;
}
AcDbDictionary* pDict;
es = acdbOpenObject(pDict, dictID, AcDb::kForWrite);
if(es != Acad::eOk)
return es;
ACHAR *DICT_NAME = ACRX_T("ISM_RASTER_IMAGE_DICT_VIEW");
BOOL bExist = pDict->has(DICT_NAME);
AcDbObjectId objID = AcDbObjectId::kNull;
if (!bExist)
{
es = pDict->setAt(DICT_NAME, pImageDef, objID);
if(es != Acad::eOk)
return es;
}
else
{
pDict->getAt(DICT_NAME,
(AcDbObject*&)pImageDef,
AcDb::kForWrite);
objID = pImageDef->objectId();
}
// close Dictionary and Definition.
pDict->close();
pImageDef->close();
// Create a raster image using the RasterImage Def
AcDbRasterImage* pImage = new AcDbRasterImage;
es = pImage->setImageDefId(objID);
if (es != Acad::eOk)
{
delete pImage;
return es;
}
// Add the raster image to the model space
AcDbBlockTable* pBlockTable;
AcDbBlockTableRecord* pBTRecord;
es = acdbCurDwg()->getBlockTable(pBlockTable,
AcDb::kForRead);
assert(es == Acad::eOk);
es = pBlockTable->getAt(ACDB_MODEL_SPACE,
pBTRecord,
AcDb::kForWrite);
assert(es == Acad::eOk);
es = pBTRecord->appendAcDbEntity(pImage);
assert(es == Acad::eOk);
pBTRecord->close();
pBlockTable->close();
AcDbObjectId entID = pImage->objectId();
// Set the transparency options
pImage->setDisplayOpt( AcDbRasterImage::kTransparent,
Adesk::kTrue);
pImage->setImageTransparency(true);
pImage->setDisplayOpt(AcDbRasterImage::kShow, Adesk::kTrue);
AcDbObjectPointer<AcDbRasterImageDefReactor>
rasterImageDefReactor;
rasterImageDefReactor.create();
es = rasterImageDefReactor->setOwnerId(pImage->objectId());
if (es == Acad::eOk)
{
AcDbObjectId defReactorId;
es = curDoc()->database()->addAcDbObject(
defReactorId,
rasterImageDefReactor.object());
if (es == Acad::eOk)
{
pImage->setReactorId(defReactorId);
AcDbObjectPointer<AcDbRasterImageDef> rasterImagedef
(pImage->imageDefId(), AcDb::kForWrite);
if (rasterImagedef.openStatus() == Acad::eOk)
{
rasterImagedef->addPersistentReactor
(defReactorId);
}
}
}
pImageDef->close();
pImage->close();
}

static Acad::ErrorStatus InsertImageInDwg( 
                                AcDbRasterImageDef *pImageDef) 
{ 
    Acad::ErrorStatus es; 
    if(! pImageDef->isLoaded()) 
    { 
        es = pImageDef->load(); 
        if(es != Acad::eOk) 
            return es; 
    } 
 
    AcApDocument *pActiveDoc = acDocManager->mdiActiveDocument(); 
    AcDbDatabase *pDB = pActiveDoc->database(); 
 
    // Get the image dictionary 
    // Create it if not available already 
    AcDbObjectId dictID 
                    = AcDbRasterImageDef::imageDictionary(pDB); 
    if(dictID == AcDbObjectId::kNull) 
    { 
        es = AcDbRasterImageDef::createImageDictionary( 
                                                  pDB, dictID); 
        if(es != Acad::eOk) 
            return es; 
    } 
 
    AcDbDictionary* pDict; 
    es = acdbOpenObject(pDict, dictID, AcDb::kForWrite); 
    if(es != Acad::eOk) 
            return es; 
 
    ACHAR *DICT_NAME = ACRX_T("ISM_RASTER_IMAGE_DICT_VIEW"); 
    BOOL bExist = pDict->has(DICT_NAME); 
    AcDbObjectId objID = AcDbObjectId::kNull; 
    if (!bExist) 
    { 
        es = pDict->setAt(DICT_NAME, pImageDef, objID); 
        if(es != Acad::eOk) 
            return es; 
    } 
    else 
    { 
        pDict->getAt(DICT_NAME, 
                    (AcDbObject*&)pImageDef, 
                    AcDb::kForWrite); 
        objID = pImageDef->objectId(); 
    } 
 
    // close Dictionary and Definition. 
    pDict->close(); 
    pImageDef->close(); 
 
    // Create a raster image using the RasterImage Def 
    AcDbRasterImage* pImage = new AcDbRasterImage; 
    es = pImage->setImageDefId(objID); 
    if (es != Acad::eOk) 
    { 
        delete pImage; 
        return es; 
    } 
 
    // Add the raster image to the model space 
    AcDbBlockTable* pBlockTable; 
    AcDbBlockTableRecord* pBTRecord; 
    es = acdbCurDwg()->getBlockTable(pBlockTable, 
                                     AcDb::kForRead); 
    assert(es == Acad::eOk); 
    es = pBlockTable->getAt(ACDB_MODEL_SPACE, 
                            pBTRecord, 
                            AcDb::kForWrite); 
    assert(es == Acad::eOk); 
 
    es = pBTRecord->appendAcDbEntity(pImage); 
    assert(es == Acad::eOk); 
 
    pBTRecord->close(); 
    pBlockTable->close(); 
 
    AcDbObjectId entID = pImage->objectId(); 
 
    // Set the transparency options 
    pImage->setDisplayOpt(    AcDbRasterImage::kTransparent, 
                            Adesk::kTrue); 
 
    pImage->setImageTransparency(true); 
    pImage->setDisplayOpt(AcDbRasterImage::kShow, Adesk::kTrue); 
 
    AcDbObjectPointer<AcDbRasterImageDefReactor> 
                                        rasterImageDefReactor; 
    rasterImageDefReactor.create(); 
 
    es = rasterImageDefReactor->setOwnerId(pImage->objectId()); 
    if (es == Acad::eOk) 
    { 
        AcDbObjectId defReactorId; 
        es = curDoc()->database()->addAcDbObject( 
                            defReactorId, 
                            rasterImageDefReactor.object()); 
 
        if (es == Acad::eOk) 
        { 
            pImage->setReactorId(defReactorId); 
            AcDbObjectPointer<AcDbRasterImageDef> rasterImagedef 
                      (pImage->imageDefId(), AcDb::kForWrite); 
            if (rasterImagedef.openStatus() == Acad::eOk) 
            { 
                rasterImagedef->addPersistentReactor 
                                               (defReactorId); 
            } 
        } 
    } 
 
    pImageDef->close(); 
    pImage->close(); 
}

[/it618postdisplay]

牢固 · 发表于 2016-9-6 13:51:49

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819534890 · 发表于 2016-9-6 17:34:31

回复学习学习

ARX2014 · 发表于 2016-9-21 18:11:15

我出来学习学习，提高水平

革天明 · 发表于 2016-9-21 20:29:01

谢谢楼主分享

用途 · 发表于 2016-9-22 16:01:48

我要学习学习。。。

huochaixiaog · 发表于 2018-2-16 14:01:23

感谢大佬分享

xgr669 · 发表于 2020-2-8 16:03:48

正好需要看看与c#有何不同

xinxirong · 发表于 2020-2-8 19:13:42

阿里巴巴爸爸妈妈的吻你

魂儿_B3zxq · 发表于 2020-6-15 19:56:44

学习学习，感谢大神分享

yuewsj · 发表于 2020-8-17 11:24:15

为啥CAD一直不解决这个问题啊

phi03c · 发表于 2020-9-21 23:50:02

THANK YOU CODE

毕竟我还相信 · 发表于 2020-12-5 16:44:25

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jollna · 发表于 2021-1-4 17:25:07

谢谢楼主分享

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