kicad/utils/idftools/dxf2idf.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2014 Cirilo Bernardo
*
* 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <cstdio>
#include <iostream>
#include <libdxfrw.h>
#include <dxf2idf.h>
// differences in angle smaller than MIN_ANG are considered equal
#define MIN_ANG (0.01)
DXF2IDF::~DXF2IDF()
{
while( !lines.empty() )
{
#ifdef DEBUG_IDF
IDF3::printSeg( lines.back() );
#endif
delete lines.back();
lines.pop_back();
}
}
bool DXF2IDF::ReadDxf( const std::string aFile )
{
dxfRW* reader = new dxfRW( aFile.c_str() );
if( !reader )
return false;
bool success = reader->read( this, true );
delete reader;
return success;
}
void DXF2IDF::addLine( const DRW_Line& data )
{
IDF_POINT p1, p2;
p1.x = data.basePoint.x;
p1.y = data.basePoint.y;
p2.x = data.secPoint.x;
p2.y = data.secPoint.y;
IDF_SEGMENT* seg = new IDF_SEGMENT( p1, p2 );
if( !seg )
{
std::cerr << "* FAULT: could not add a linear segment to the outline\n";
}
else
{
lines.push_back( seg );
}
return;
}
void DXF2IDF::addCircle( const DRW_Circle& data )
{
IDF_POINT p1, p2;
p1.x = data.basePoint.x;
p1.y = data.basePoint.y;
p2.x = p1.x + data.radious;
p2.y = p1.y;
IDF_SEGMENT* seg = new IDF_SEGMENT( p1, p2, 360, true );
if( !seg )
{
std::cerr << "* FAULT: could not add a linear segment to the outline\n";
}
else
{
lines.push_back( seg );
}
return;
}
void DXF2IDF::addArc( const DRW_Arc& data )
{
IDF_POINT p1, p2;
p1.x = data.basePoint.x;
p1.y = data.basePoint.y;
// note: DXF circles always run CCW
double ea = data.endangle;
while( ea < data.staangle )
ea += M_PI;
p2.x = p1.x + cos( data.staangle ) * data.radious;
p2.y = p1.y + sin( data.staangle ) * data.radious;
double angle = ( ea - data.staangle ) * 180.0 / M_PI;
IDF_SEGMENT* seg = new IDF_SEGMENT( p1, p2, angle, true );
if( !seg )
{
std::cerr << "* FAULT: could not add a linear segment to the outline\n";
}
else
{
lines.push_back( seg );
}
return;
}
bool DXF2IDF::WriteOutline( FILE* aFile, bool isInch )
{
if( lines.empty() )
{
std::cerr << "* DXF2IDF: empty outline\n";
return false;
}
// 1. find lowest X value
// 2. string an outline together
// 3. emit warnings if more than 1 outline
IDF_OUTLINE outline;
IDF3::GetOutline( lines, outline );
if( outline.empty() )
{
std::cerr << "* DXF2IDF::WriteOutline(): no valid outline in file\n";
return false;
}
if( !lines.empty() )
{
std::cerr << "* DXF2IDF::WriteOutline(): WARNING: more than 1 outline in file\n";
std::cerr << "* Only the first outline will be used\n";
}
char loopDir = '1';
if( outline.IsCCW() )
loopDir = '0';
std::list<IDF_SEGMENT*>::iterator bo;
std::list<IDF_SEGMENT*>::iterator eo;
if( outline.size() == 1 )
{
if( !outline.front()->IsCircle() )
{
std::cerr << "* DXF2IDF::WriteOutline(): bad outline\n";
return false;
}
// NOTE: a circle always has an angle of 360, never -360,
// otherwise SolidWorks chokes on the file.
if( isInch )
{
fprintf( aFile, "%c %d %d 0\n", loopDir,
(int) (1000 * outline.front()->startPoint.x),
(int) (1000 * outline.front()->startPoint.y) );
fprintf( aFile, "%c %d %d 360\n", loopDir,
(int) (1000 * outline.front()->endPoint.x),
(int) (1000 * outline.front()->endPoint.y) );
}
else
{
fprintf( aFile, "%c %.3f %.3f 0\n", loopDir,
outline.front()->startPoint.x, outline.front()->startPoint.y );
fprintf( aFile, "%c %.3f %.3f 360\n", loopDir,
outline.front()->endPoint.x, outline.front()->endPoint.y );
}
return true;
}
// ensure that the very last point is the same as the very first point
outline.back()-> endPoint = outline.front()->startPoint;
bo = outline.begin();
eo = outline.end();
// for the first item we write out both points
if( (*bo)->angle < MIN_ANG && (*bo)->angle > -MIN_ANG )
{
if( isInch )
{
fprintf( aFile, "%c %d %d 0\n", loopDir,
(int) (1000 * (*bo)->startPoint.x),
(int) (1000 * (*bo)->startPoint.y) );
fprintf( aFile, "%c %d %d 0\n", loopDir,
(int) (1000 * (*bo)->endPoint.x),
(int) (1000 * (*bo)->endPoint.y) );
}
else
{
fprintf( aFile, "%c %.3f %.3f 0\n", loopDir,
(*bo)->startPoint.x, (*bo)->startPoint.y );
fprintf( aFile, "%c %.3f %.3f 0\n", loopDir,
(*bo)->endPoint.x, (*bo)->endPoint.y );
}
}
else
{
if( isInch )
{
fprintf( aFile, "%c %d %d 0\n", loopDir,
(int) (1000 * (*bo)->startPoint.x),
(int) (1000 * (*bo)->startPoint.y) );
fprintf( aFile, "%c %d %d %.2f\n", loopDir,
(int) (1000 * (*bo)->endPoint.x),
(int) (1000 * (*bo)->endPoint.y),
(*bo)->angle );
}
else
{
fprintf( aFile, "%c %.3f %.3f 0\n", loopDir,
(*bo)->startPoint.x, (*bo)->startPoint.y );
fprintf( aFile, "%c %.3f %.3f %.2f\n", loopDir,
(*bo)->endPoint.x, (*bo)->endPoint.y, (*bo)->angle );
}
}
++bo;
// for all other segments we only write out the last point
while( bo != eo )
{
if( isInch )
{
if( (*bo)->angle < MIN_ANG && (*bo)->angle > -MIN_ANG )
{
fprintf( aFile, "%c %d %d 0\n", loopDir,
(int) (1000 * (*bo)->endPoint.x),
(int) (1000 * (*bo)->endPoint.y) );
}
else
{
fprintf( aFile, "%c %d %d %.2f\n", loopDir,
(int) (1000 * (*bo)->endPoint.x),
(int) (1000 * (*bo)->endPoint.y),
(*bo)->angle );
}
}
else
{
if( (*bo)->angle < MIN_ANG && (*bo)->angle > -MIN_ANG )
{
fprintf( aFile, "%c %.5f %.5f 0\n", loopDir,
(*bo)->endPoint.x, (*bo)->endPoint.y );
}
else
{
fprintf( aFile, "%c %.5f %.5f %.2f\n", loopDir,
(*bo)->endPoint.x, (*bo)->endPoint.y, (*bo)->angle );
}
}
++bo;
}
return true;
}