-/* === S I N F G =========================================================== */
+/* === S Y N F I G ========================================================= */
/*! \file metaballs.cpp
-** \brief Implements metaballs
+** \brief Implementation of the "Metaballs" layer
**
-** $Id: metaballs.cpp,v 1.1.1.1 2005/01/04 01:23:09 darco Exp $
+** $Id$
**
** \legal
-** Copyright (c) 2002 Robert B. Quattlebaum Jr.
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
-** This software and associated documentation
-** are CONFIDENTIAL and PROPRIETARY property of
-** the above-mentioned copyright holder.
+** This package 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.
**
-** You may not copy, print, publish, or in any
-** other way distribute this software without
-** a prior written agreement with
-** the copyright holder.
+** This package 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.
** \endlegal
*/
/* ========================================================================= */
# include <config.h>
#endif
-#include <sinfg/string.h>
-#include <sinfg/time.h>
-#include <sinfg/context.h>
-#include <sinfg/paramdesc.h>
-#include <sinfg/renddesc.h>
-#include <sinfg/surface.h>
-#include <sinfg/value.h>
-#include <sinfg/valuenode.h>
+#include <synfig/string.h>
+#include <synfig/time.h>
+#include <synfig/context.h>
+#include <synfig/paramdesc.h>
+#include <synfig/renddesc.h>
+#include <synfig/surface.h>
+#include <synfig/value.h>
+#include <synfig/valuenode.h>
#include <ETL/pen>
#include "metaballs.h"
using namespace etl;
using namespace std;
-using namespace sinfg;
+using namespace synfig;
/* === G L O B A L S ======================================================= */
-SINFG_LAYER_INIT(Metaballs);
-SINFG_LAYER_SET_NAME(Metaballs,"metaballs");
-SINFG_LAYER_SET_LOCAL_NAME(Metaballs,_("Metaballs"));
-SINFG_LAYER_SET_CATEGORY(Metaballs,_("Default"));
-SINFG_LAYER_SET_VERSION(Metaballs,"0.1");
-SINFG_LAYER_SET_CVS_ID(Metaballs,"$Id: metaballs.cpp,v 1.1.1.1 2005/01/04 01:23:09 darco Exp $");
+SYNFIG_LAYER_INIT(Metaballs);
+SYNFIG_LAYER_SET_NAME(Metaballs,"metaballs");
+SYNFIG_LAYER_SET_LOCAL_NAME(Metaballs,N_("Metaballs"));
+SYNFIG_LAYER_SET_CATEGORY(Metaballs,N_("Default"));
+SYNFIG_LAYER_SET_VERSION(Metaballs,"0.1");
+SYNFIG_LAYER_SET_CVS_ID(Metaballs,"$Id$");
/* === P R O C E D U R E S ================================================= */
color(Color::black())
{
}
-
+
bool
Metaballs::set_param(const String & param, const ValueBase &value)
{
- if( param=="centers" && value.same_as(centers))
+ if( param=="centers" && value.same_type_as(centers))
{
centers = value;
return true;
}
-
- if( param=="weights" && value.same_as(weights))
+
+ if( param=="weights" && value.same_type_as(weights))
{
weights = value;
return true;
}
-
- if( param=="radii" && value.same_as(radii))
+
+ if( param=="radii" && value.same_type_as(radii))
{
radii = value;
return true;
}
-
+
IMPORT(color);
IMPORT(threshold);
-
+
return Layer_Composite::set_param(param,value);
}
Metaballs::get_param(const String ¶m)const
{
EXPORT(color);
-
+
EXPORT(radii);
- EXPORT(weights);
+ EXPORT(weights);
EXPORT(centers);
EXPORT(threshold);
EXPORT_NAME();
EXPORT_VERSION();
-
- return Layer_Composite::get_param(param);
+
+ return Layer_Composite::get_param(param);
}
Layer::Vocab
Metaballs::get_param_vocab()const
{
Layer::Vocab ret(Layer_Composite::get_param_vocab());
-
+
ret.push_back(ParamDesc("color")
.set_local_name(_("Color"))
);
ret.push_back(ParamDesc("centers")
.set_local_name(_("Points"))
);
-
+
ret.push_back(ParamDesc("radii")
.set_local_name(_("Radii"))
);
-
+
ret.push_back(ParamDesc("weights")
.set_local_name(_("Weights"))
);
-
+
ret.push_back(ParamDesc("threshold")
.set_local_name(_("Threshold"))
);
-
+
return ret;
}
-static inline Real densityfunc(const sinfg::Point &p, const sinfg::Point &c, Real R)
+static inline Real densityfunc(const synfig::Point &p, const synfig::Point &c, Real R)
{
const Real dx = p[0] - c[0];
const Real dy = p[1] - c[1];
-
+
const Real n = (1 - (dx*dx + dy*dy)/(R*R));
return (n*n*n);
/*
f(d) = (1 - d^2)^3
f'(d) = -6d * (1 - d^2)^2
-
+
could use this too...
f(d) = (1 - d^2)^2
f'(d) = -6d * (1 - d^2)
Metaballs::totaldensity(const Point &pos) const
{
Real density = 0;
-
+
//sum up weighted functions
for(unsigned int i=0;i<centers.size();i++)
{
density += weights[i] * densityfunc(pos,centers[i], radii[i]);
}
-
+
return density;
}
Metaballs::get_color(Context context, const Point &pos)const
{
Real dens = totaldensity(pos);
-
- if(dens >= threshold)
+
+ if(dens >= threshold)
return color;
else
return context.get_color(pos);
bool
Metaballs::accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const
-{
+{
// Width and Height of a pixel
- const Point br(renddesc.get_br()),
+ const Point br(renddesc.get_br()),
tl(renddesc.get_tl());
-
- const int w = renddesc.get_w(),
+
+ const int w = renddesc.get_w(),
h = renddesc.get_h();
-
+
Real pw = renddesc.get_pw();
Real ph = renddesc.get_ph();
-
+
SuperCallback supercb(cb,0,9000,10000);
-
- if(!context.accelerated_render(surface,quality,renddesc,&supercb))
- {
- if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
- return false;
- }
-
+
Point pos(tl[0],tl[1]);
-
+
Real dens;
-
+
if(!context.accelerated_render(surface,quality,renddesc,&supercb))
{
if(cb)cb->error(strprintf(__FILE__"%d: Accelerated Renderer Failure",__LINE__));
return false;
}
-
+
for(int y = 0; y < h; y++, pos[1] += ph)
{
pos[0] = tl[0];
for(int x = 0; x < w; x++, pos[0] += pw)
{
dens = totaldensity(pos);
-
+
if(dens >= threshold)
{
(*surface)[y][x] = Color::blend(color,(*surface)[y][x],get_amount(),get_blend_method());
}
- }
+ }
}
// Mark our progress as finished
projects / synfig.git / blobdiff