Image3D.cpp

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/* ImLib3D
 * Copyright (c) 2001, ULP-IPB Strasbourg.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#include<ImLib3D/Image3D.hpp>

float 
Image3D::FloatValue(int x,int y,int z) const
{
    ThrowError("Image3D::FloatValue not implemented for this image type:\"%s\"",GetTypeName());
    return 0;
}

string 
Image3D::GetTypeName() const 
{
    return TypeName<Image3D>();
}

void 
Image3D::Write(ImLib3DFile *file,xmlpp::Element *parentNode,xmlpp::Element *node) const
{
    node=CreateWriteNode(file,parentNode,node);
    // **** Optionally add unset image properties ***
    // set image type (Image3Df, Field3D etc....) 
    if(!file->HasAttribute(node,"Type")){node->set_attribute("Type",GetTypeName());}
    // store Size information
    if(!file->HasChild(node,"Size"))
    {
        xmlpp::Element *sizeN=node->add_child("Size");
        sizeN->set_attribute("width" ,SPrintf("%d",width ));
        sizeN->set_attribute("height",SPrintf("%d",height));
        sizeN->set_attribute("depth" ,SPrintf("%d",depth ));
    }
    // store the image Properties
    if(!file->HasChild(node,"Properties"))
    {
        properties.Write(file,node);
    }
}

void 
Image3D::Read(ImLib3DFile *file,xmlpp::Element *parentNode,xmlpp::Element *node)
{
    node=CreateReadNode(file,parentNode,node);

    if(file->debug){cout << "Image3D::Read: " << endl;file->ShowXML(node);}
    

    //image size
    xmlpp::Element *sizeN=file->GetChild(node,"Size");
    if(file->debug){cout << "reading width:" << sizeN->get_attribute("width" )->get_value() << endl;}
    int w =file->GetIntAttribute(sizeN,"width"  );
    int h =file->GetIntAttribute(sizeN,"height" );
    int d =file->GetIntAttribute(sizeN,"depth"  );
    Resize(Size3D(w,h,d));

    //image properties
    properties.Read(file,node);
}

// *******************************************************

void 
Image3D::SetSize(const Size3D &newSize)
{
    width =newSize.width;
    height=newSize.height;
    depth =newSize.depth;
    nvoxels=width*height*depth;
    if(nvoxels<0){ThrowError("Image3D::Resize size<0??");}
}

void 
Image3D::Resize(const Size3D &newSize)
{
    if(newSize==Size()){return;}
    SetSize(newSize);
}


// *******************************************************

Image3D& 
Image3D::operator=(const Image3D & other)
{
    // don't copy if its the same object
    if (this == &other){return *this;}
    // resize (Resize method is virtual)
    if(other.Size()!=Size()){Resize(other.Size());}

    // now copy properties
    properties=other.properties;
    
    return *this;
}


// *******************************************************

bool 
Image3D::operator==(const Image3D & other) const
{
    if(other.Size()!=Size()){return false;} 
    if(!(properties==other.properties)){return false;}
    return true;
}

// *******************************************************

Image3D::~Image3D()
{
    ;
}

// *******************************************************

Image3D::Image3D(int _width, int _height, int _depth) : 
    properties(this)
{
    SetSize(Size3D(_width,_height,_depth));
}
// *******************************************************

Image3D::Image3D():
    properties(this)
{
    SetSize(Size3D(0,0,0));
}


// *******************************************************

Image3D::Image3D(const Size3D &size):
    properties(this)
{
    SetSize(size);
}

// *******************************************************

Image3D::Image3D(const Image3D & origCont) :
    properties(this)
{
    SetSize(origCont.Size());
    (*this)=origCont;
}

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