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gravity.cpp
// This may look like C code, but it is really -*- C++ -*-
//
// Copyright Bob Friesenhahn, 2000, 2001, 2003
//
// Copyright @ 2013 ImageMagick Studio LLC, a non-profit organization
// dedicated to making software imaging solutions freely available.
//
// Demo of text annotation with gravity. Produces an animation showing
// the effect of rotated text assize_t with various gravity specifications.
//
// After running demo program, run 'animate gravity_out.miff' if you
// are using X-Windows to see an animated result.
//
// Concept and algorithms lifted from PerlMagick demo script written
// by Cristy.
//
#include <Magick++.h>
#include <cstdlib>
#include <string>
#include <iostream>
#include <list>
using namespace std;
using namespace Magick;
int main( int /*argc*/, char ** argv)
{
// Initialize ImageMagick install location for Windows
MagickPlusPlusGenesis genesis(*argv);
try {
string srcdir("");
if(getenv("SRCDIR") != 0)
srcdir = getenv("SRCDIR");
const char *const p = getenv("MAGICK_FONT");
const string MAGICK_FONT(p ? p : "");
int x = 100;
int y = 100;
list<Image> animation;
Image base( Geometry(600,600), Color("white") );
base.depth(8);
base.strokeColor("#600");
base.fillColor(Color());
base.draw( DrawableLine( 300,100, 300,500 ) );
base.draw( DrawableLine( 100,300, 500,300 ) );
base.draw( DrawableRectangle( 100,100, 500,500 ) );
base.density( Point(72,72) );
base.strokeColor(Color());
base.fillColor("#600");
base.fontPointsize( 30 );
base.font( MAGICK_FONT );
base.boxColor( "red" );
base.animationDelay( 20 );
base.compressType( RLECompression );
for ( int angle = 0; angle < 360; angle += 30 )
{
cout << "angle " << angle << endl;
Image pic = base;
pic.annotate( "NorthWest", Geometry(0,0,x,y), NorthWestGravity, angle );
pic.annotate( "North", Geometry(0,0,0,y), NorthGravity, angle );
pic.annotate( "NorthEast", Geometry(0,0,x,y), NorthEastGravity, angle );
pic.annotate( "East", Geometry(0,0,x,0), EastGravity, angle );
pic.annotate( "Center", Geometry(0,0,0,0), CenterGravity, angle );
pic.annotate( "SouthEast", Geometry(0,0,x,y), SouthEastGravity, angle );
pic.annotate( "South", Geometry(0,0,0,y), SouthGravity, angle );
pic.annotate( "SouthWest", Geometry(0,0,x,y), SouthWestGravity, angle );
pic.annotate( "West", Geometry(0,0,x,0), WestGravity, angle );
animation.push_back( pic );
}
cout << "Writing image \"gravity_out.miff\" ..." << endl;
writeImages( animation.begin(), animation.end(), "gravity_out.miff" );
// system( "animate gravity_out.miff" );
}
catch( exception &error_ )
{
cout << "Caught exception: " << error_.what() << endl;
return 1;
}
return 0;
}
Magick::Color
Definition Color.h:37
Magick::DrawableLine
Definition Drawable.h:1122
Magick::DrawableRectangle
Definition Drawable.h:1402
Magick::Geometry
Definition Geometry.h:38
Magick::Image
Definition Image.h:56
Magick::MagickPlusPlusGenesis
Definition Functions.h:44
Magick::Point
Definition Geometry.h:209