kicad/pcbnew/export_vrml.cpp

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#include <fctsys.h>
#include <kicad_string.h>
#include <wxPcbStruct.h>
#include <drawtxt.h>
#include <trigo.h>
#include <appl_wxstruct.h>
#include <3d_struct.h>
#include <macros.h>
#include <pcbnew.h>
#include <class_board.h>
#include <class_module.h>
#include <class_track.h>
#include <class_edge_mod.h>
#include <class_pcb_text.h>
#include <convert_from_iu.h>
#include <vector>
#include <cmath>
#define SEGM_COUNT_PER_360 32 // Number of segments to approximate a circle per segments
/* helper function:
* some characters cannot be used in names,
* this function change them to "_"
*/
static void ChangeIllegalCharacters( wxString & aFileName, bool aDirSepIsIllegal );
/* the dialog to create VRML files, derived from DIALOG_EXPORT_3DFILE_BASE,
* created by wxFormBuilder
*/
#include <dialog_export_3Dfiles_base.h> // the wxFormBuilder header file
#define OPTKEY_OUTPUT_UNIT wxT("VrmlExportUnit" )
#define OPTKEY_3DFILES_OPT wxT("VrmlExport3DShapeFilesOpt" )
class DIALOG_EXPORT_3DFILE : public DIALOG_EXPORT_3DFILE_BASE
{
private:
PCB_EDIT_FRAME* m_parent;
wxConfig* m_config;
int m_unitsOpt; // to remember last option
int m_3DFilesOpt; // to remember last option
void OnCancelClick( wxCommandEvent& event ){ EndModal( wxID_CANCEL ); }
void OnOkClick( wxCommandEvent& event ){ EndModal( wxID_OK ); }
public:
DIALOG_EXPORT_3DFILE( PCB_EDIT_FRAME* parent ) :
DIALOG_EXPORT_3DFILE_BASE( parent )
{
m_parent = parent;
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m_config = wxGetApp().GetSettings();
SetFocus();
m_config->Read( OPTKEY_OUTPUT_UNIT, &m_unitsOpt );
m_config->Read( OPTKEY_3DFILES_OPT, &m_3DFilesOpt );
m_rbSelectUnits->SetSelection(m_unitsOpt);
m_rb3DFilesOption->SetSelection(m_3DFilesOpt);
GetSizer()->SetSizeHints( this );
Centre();
}
~DIALOG_EXPORT_3DFILE()
{
m_unitsOpt = GetUnits( );
m_3DFilesOpt = Get3DFilesOption( );
m_config->Write( OPTKEY_OUTPUT_UNIT, m_unitsOpt );
m_config->Write( OPTKEY_3DFILES_OPT, m_3DFilesOpt );
};
void SetSubdir( const wxString & aDir )
{
m_SubdirNameCtrl->SetValue( aDir);
}
wxString GetSubdir( )
{
return m_SubdirNameCtrl->GetValue( );
}
wxFilePickerCtrl* FilePicker()
{
return m_filePicker;
}
int GetUnits( )
{
return m_unitsOpt = m_rbSelectUnits->GetSelection();
}
int Get3DFilesOption( )
{
return m_3DFilesOpt = m_rb3DFilesOption->GetSelection();
}
};
/**
* Function OnExportVRML
* will export the current BOARD to a VRML file.
*/
void PCB_EDIT_FRAME::OnExportVRML( wxCommandEvent& event )
{
wxFileName fn;
static wxString subDirFor3Dshapes = wxT("shapes3D");
// The general VRML scale factor
// Assuming the VRML default unit is the mm
// this is the mm to VRML scaling factor for inch, mm and meter
double scaleList[3] = { 1.0/25.4, 1, 0.001 };
// Build default file name
wxString ext = wxT( "wrl" );
fn = GetBoard()->GetFileName();
fn.SetExt( ext );
DIALOG_EXPORT_3DFILE dlg( this );
dlg.FilePicker()->SetPath( fn.GetFullPath() );
dlg.SetSubdir( subDirFor3Dshapes );
if( dlg.ShowModal() != wxID_OK )
return;
double scale = scaleList[dlg.GetUnits( )]; // final scale export
bool export3DFiles = dlg.Get3DFilesOption( ) == 0;
wxBusyCursor dummy;
wxString fullFilename = dlg.FilePicker()->GetPath();
subDirFor3Dshapes = dlg.GetSubdir();
if( ! wxDirExists( subDirFor3Dshapes ) )
wxMkdir( subDirFor3Dshapes );
if( ! ExportVRML_File( fullFilename, scale, export3DFiles, subDirFor3Dshapes ) )
{
wxString msg = _( "Unable to create " ) + fullFilename;
wxMessageBox( msg );
return;
}
}
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// I use this a lot...
static const double PI2 = M_PI / 2;
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// Absolutely not optimized triangle bag :D
struct VRMLPt
{
double x, y, z;
};
struct FlatPt
{
FlatPt( double _x = 0, double _y = 0 ) : x( _x ), y( _y )
{ }
double x, y;
};
struct Triangle
{
Triangle( double x1, double y1, double z1,
double x2, double y2, double z2,
double x3, double y3, double z3 )
{
p1.x = x1; p1.y = y1; p1.z = z1;
p2.x = x2; p2.y = y2; p2.z = z2;
p3.x = x3; p3.y = y3; p3.z = z3;
}
Triangle() { }
VRMLPt p1, p2, p3;
};
typedef std::vector<Triangle> TriangleBag;
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// A flat triangle fan
struct FlatFan
{
FlatPt c;
std::vector<FlatPt> pts;
void add( double x, double y )
{
pts.push_back( FlatPt( x, y ) );
}
void bag( int layer, bool close = true );
};
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// A flat quad ring
struct FlatRing
{
std::vector<FlatPt> inner;
std::vector<FlatPt> outer;
void add_inner( double x, double y )
{
inner.push_back( FlatPt( x, y ) );
}
void add_outer( double x, double y )
{
outer.push_back( FlatPt( x, y ) );
}
void bag( int layer, bool close = true );
};
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// A vertical quad loop
struct VLoop
{
std::vector<FlatPt> pts;
double z_top, z_bottom;
void add( double x, double y )
{
pts.push_back( FlatPt( x, y ) );
}
void bag( TriangleBag& triangles, bool close = true );
};
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// The bags for all the layers
static TriangleBag layer_triangles[LAYER_COUNT];
static TriangleBag via_triangles[4];
static double layer_z[LAYER_COUNT];
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static void bag_flat_triangle( int layer, //{{{
double x1, double y1,
double x2, double y2,
double x3, double y3 )
{
double z = layer_z[layer];
layer_triangles[layer].push_back( Triangle( x1, y1, z, x2, y2, z, x3, y3, z ) );
}
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void FlatFan::bag( int layer, bool close ) //{{{
{
unsigned i;
for( i = 0; i < pts.size() - 1; i++ )
bag_flat_triangle( layer, c.x, c.y, pts[i].x, pts[i].y, pts[i + 1].x, pts[i + 1].y );
if( close )
bag_flat_triangle( layer, c.x, c.y, pts[i].x, pts[i].y, pts[0].x, pts[0].y );
}
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static void bag_flat_quad( int layer, //{{{
double x1, double y1,
double x2, double y2,
double x3, double y3,
double x4, double y4 )
{
bag_flat_triangle( layer, x1, y1, x3, y3, x2, y2 );
bag_flat_triangle( layer, x2, y2, x3, y3, x4, y4 );
}
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void FlatRing::bag( int layer, bool close ) //{{{
{
unsigned i;
for( i = 0; i < inner.size() - 1; i++ )
bag_flat_quad( layer,
inner[i].x, inner[i].y,
outer[i].x, outer[i].y,
inner[i + 1].x, inner[i + 1].y,
outer[i + 1].x, outer[i + 1].y );
if( close )
bag_flat_quad( layer,
inner[i].x, inner[i].y,
outer[i].x, outer[i].y,
inner[0].x, inner[0].y,
outer[0].x, outer[0].y );
}
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static void bag_vquad( TriangleBag& triangles, //{{{
double x1, double y1, double x2, double y2,
double z1, double z2 )
{
triangles.push_back( Triangle( x1, y1, z1,
x2, y2, z1,
x2, y2, z2 ) );
triangles.push_back( Triangle( x1, y1, z1,
x2, y2, z2,
x1, y1, z2 ) );
}
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void VLoop::bag( TriangleBag& triangles, bool close ) //{{{
{
unsigned i;
for( i = 0; i < pts.size() - 1; i++ )
bag_vquad( triangles, pts[i].x, pts[i].y,
pts[i + 1].x, pts[i + 1].y,
z_top, z_bottom );
if( close )
bag_vquad( triangles, pts[i].x, pts[i].y,
pts[0].x, pts[0].y,
z_top, z_bottom );
}
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static void write_triangle_bag( FILE* output_file, int color_index, //{{{
const TriangleBag& triangles )
{
/* A lot of nodes are not required, but blender sometimes chokes
* without them */
static const char* shape_boiler[] =
{
"Transform {\n",
" translation 0.0 0.0 0.0\n",
" rotation 1.0 0.0 0.0 0.0\n",
" scale 1.0 1.0 1.0\n",
" children [\n",
" Group {\n",
" children [\n",
" Shape {\n",
" appearance Appearance {\n",
" material Material {\n",
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0, // Material marker
" ambientIntensity 0.8\n",
" transparency 0.2\n",
" shininess 0.2\n",
" }\n",
" }\n",
" geometry IndexedFaceSet {\n",
" solid TRUE\n",
" coord Coordinate {\n",
" point [\n",
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0, // Coordinates marker
" ]\n",
" }\n",
" coordIndex [\n",
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0, // Index marker
" ]\n",
" }\n",
" }\n",
" ]\n",
" }\n",
" ]\n",
"}\n",
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0 // End marker
};
int marker_found = 0, lineno = 0;
while( marker_found < 4 )
{
if( shape_boiler[lineno] )
fputs( shape_boiler[lineno], output_file );
else
{
marker_found++;
switch( marker_found )
{
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case 1: // Material marker
fprintf( output_file,
" diffuseColor %g %g %g\n",
(double) ColorRefs[color_index].m_Red / 255.0,
(double) ColorRefs[color_index].m_Green / 255.0,
(double) ColorRefs[color_index].m_Blue / 255.0 );
fprintf( output_file,
" specularColor %g %g %g\n",
(double) ColorRefs[color_index].m_Red / 255.0,
(double) ColorRefs[color_index].m_Green / 255.0,
(double) ColorRefs[color_index].m_Blue / 255.0 );
fprintf( output_file,
" emissiveColor %g %g %g\n",
(double) ColorRefs[color_index].m_Red / 255.0,
(double) ColorRefs[color_index].m_Green / 255.0,
(double) ColorRefs[color_index].m_Blue / 255.0 );
break;
case 2:
{
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// Coordinates marker
for( TriangleBag::const_iterator i = triangles.begin();
i != triangles.end();
i++ )
{
fprintf( output_file, "%g %g %g\n",
i->p1.x, -i->p1.y, i->p1.z );
fprintf( output_file, "%g %g %g\n",
i->p2.x, -i->p2.y, i->p2.z );
fprintf( output_file, "%g %g %g\n",
i->p3.x, -i->p3.y, i->p3.z );
}
}
break;
case 3:
{
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// Index marker
// OK, that's sick ...
int j = 0;
for( TriangleBag::const_iterator i = triangles.begin();
i != triangles.end();
i++ )
{
fprintf( output_file, "%d %d %d -1\n", j, j + 1, j + 2 );
j += 3;
}
}
break;
default:
break;
}
}
lineno++;
}
}
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static void compute_layer_Zs( BOARD* pcb ) //{{{
{
int copper_layers = pcb->GetCopperLayerCount( );
// We call it 'layer' thickness, but it's the whole board thickness!
double board_thickness = pcb->GetDesignSettings().GetBoardThickness();
double half_thickness = board_thickness / 2;
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// Compute each layer's Z value, more or less like the 3d view
for( int i = 0; i <= LAYER_N_FRONT; i++ )
{
if( i < copper_layers )
layer_z[i] = board_thickness * i / (copper_layers - 1) - half_thickness;
else
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layer_z[i] = half_thickness; // The component layer...
}
/* To avoid rounding interference, we apply an epsilon to each
* successive layer */
const double epsilon_z = 1 * IU_PER_MILS; // That's 1 mils, about 1/50 mm
layer_z[SOLDERPASTE_N_BACK] = -half_thickness - epsilon_z * 4;
layer_z[ADHESIVE_N_BACK] = -half_thickness - epsilon_z * 3;
layer_z[SILKSCREEN_N_BACK] = -half_thickness - epsilon_z * 2;
layer_z[SOLDERMASK_N_BACK] = -half_thickness - epsilon_z;
layer_z[SOLDERMASK_N_FRONT] = half_thickness + epsilon_z;
layer_z[SILKSCREEN_N_FRONT] = half_thickness + epsilon_z * 2;
layer_z[ADHESIVE_N_FRONT] = half_thickness + epsilon_z * 3;
layer_z[SOLDERPASTE_N_FRONT] = half_thickness + epsilon_z * 4;
layer_z[DRAW_N] = half_thickness + epsilon_z * 5;
layer_z[COMMENT_N] = half_thickness + epsilon_z * 6;
layer_z[ECO1_N] = half_thickness + epsilon_z * 7;
layer_z[ECO2_N] = half_thickness + epsilon_z * 8;
layer_z[EDGE_N] = 0;
}
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static void export_vrml_line( int layer, double startx, double starty, //{{{
double endx, double endy, double width, int divisions )
{
double r = width / 2;
double angle = atan2( endy - starty, endx - startx );
double alpha;
FlatFan fan;
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// Output the 'bone' as a triangle fan, this is the fan centre
fan.c.x = (startx + endx) / 2;
fan.c.y = (starty + endy) / 2;
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// The 'end' side cap
for( alpha = angle - PI2; alpha < angle + PI2; alpha += PI2 / divisions )
fan.add( endx + r * cos( alpha ), endy + r * sin( alpha ) );
alpha = angle + PI2;
fan.add( endx + r * cos( alpha ), endy + r * sin( alpha ) );
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// The 'start' side cap
for( alpha = angle + PI2; alpha < angle + 3 * PI2; alpha += PI2 / divisions )
fan.add( startx + r * cos( alpha ), starty + r * sin( alpha ) );
alpha = angle + 3 * PI2;
fan.add( startx + r * cos( alpha ), starty + r * sin( alpha ) );
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// Export the fan
fan.bag( layer );
}
static void export_vrml_circle( int layer, double startx, double starty,
double endx, double endy, double width )
{
double hole, radius;
FlatRing ring;
radius = hypot( startx - endx, starty - endy ) + ( width / 2);
hole = radius - width;
for( double alpha = 0; alpha < M_PI * 2; alpha += M_PI * 2 / SEGM_COUNT_PER_360 )
{
ring.add_inner( startx + hole * cos( alpha ), starty + hole * sin( alpha ) );
ring.add_outer( startx + radius * cos( alpha ), starty + radius * sin( alpha ) );
}
ring.bag( layer );
}
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static void export_vrml_slot( TriangleBag& triangles, //{{{
int top_layer, int bottom_layer, double xc, double yc,
double dx, double dy, int orient )
{
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double capx, capy; // Cap center
VLoop loop;
int divisions = SEGM_COUNT_PER_360 / 2;
loop.z_top = layer_z[top_layer];
loop.z_bottom = layer_z[bottom_layer];
double angle = orient / 1800.0 * M_PI;
if( dy > dx )
{
EXCHG( dx, dy );
angle += PI2;
}
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// The exchange above means that cutter radius is alvays dy/2
double r = dy / 2;
double alpha;
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// The first side cap
capx = xc + cos( angle ) * dx / 2;
capy = yc + sin( angle ) * dx / 2;
for( alpha = angle - PI2; alpha < angle + PI2; alpha += PI2 / divisions )
loop.add( capx + r * cos( alpha ), capy + r * sin( alpha ) );
alpha = angle + PI2;
loop.add( capx + r * cos( alpha ), capy + r * sin( alpha ) );
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// The other side cap
capx = xc - cos( angle ) * dx / 2;
capy = yc - sin( angle ) * dx / 2;
for( alpha = angle + PI2; alpha < angle + 3 * PI2; alpha += PI2 / divisions )
loop.add( capx + r * cos( alpha ), capy + r * sin( alpha ) );
alpha = angle + 3 * PI2;
loop.add( capx + r * cos( alpha ), capy + r * sin( alpha ) );
loop.bag( triangles );
}
static void export_vrml_hole( TriangleBag& triangles, int top_layer, int bottom_layer,
double xc, double yc, double hole )
{
VLoop loop;
loop.z_top = layer_z[top_layer];
loop.z_bottom = layer_z[bottom_layer];
for( double alpha = 0; alpha < M_PI * 2; alpha += M_PI * 2 / SEGM_COUNT_PER_360 )
loop.add( xc + cos( alpha ) * hole, yc + sin( alpha ) * hole );
loop.bag( triangles );
}
static void export_vrml_oval_pad( int layer, double xc, double yc,
double dx, double dy, int orient )
{
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double capx, capy; // Cap center
FlatFan fan;
fan.c.x = xc;
fan.c.y = yc;
double angle = orient / 1800.0 * M_PI;
int divisions = SEGM_COUNT_PER_360 / 2;
if( dy > dx )
{
EXCHG( dx, dy );
angle += PI2;
}
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// The exchange above means that cutter radius is alvays dy/2
double r = dy / 2;
double alpha;
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// The first side cap
capx = xc + cos( angle ) * dx / 2;
capy = yc + sin( angle ) * dx / 2;
for( alpha = angle - PI2; alpha < angle + PI2; alpha += PI2 / divisions )
fan.add( capx + r * cos( alpha ), capy + r * sin( alpha ) );
alpha = angle + PI2;
fan.add( capx + r * cos( alpha ), capy + r * sin( alpha ) );
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// The other side cap
capx = xc - cos( angle ) * dx / 2;
capy = yc - sin( angle ) * dx / 2;
for( alpha = angle + PI2; alpha < angle + 3 * PI2; alpha += PI2 / divisions )
fan.add( capx + r * cos( alpha ), capy + r * sin( alpha ) );
alpha = angle + 3 * PI2;
fan.add( capx + r * cos( alpha ), capy + r * sin( alpha ) );
fan.bag( layer );
}
static void export_vrml_arc( int layer, double centerx, double centery,
double arc_startx, double arc_starty,
double width, double arc_angle )
{
FlatRing ring;
double start_angle = atan2( arc_starty - centery, arc_startx - centerx );
int count = KiROUND( arc_angle / 360.0 * SEGM_COUNT_PER_360 );
if( count < 0 )
count = -count;
if( count == 0 )
count = 1;
double divisions = arc_angle*M_PI/180.0 / count;
double outer_radius = hypot( arc_starty - centery, arc_startx - centerx )
+ ( width / 2);
double inner_radius = outer_radius - width;
double alpha = 0;
for( int ii = 0; ii <= count; alpha += divisions, ii++ )
{
double angle_rot = start_angle + alpha;
ring.add_inner( centerx + cos( angle_rot ) * inner_radius,
centery + sin( angle_rot ) * inner_radius );
ring.add_outer( centerx + cos( angle_rot ) * outer_radius,
centery + sin( angle_rot ) * outer_radius );
}
ring.bag( layer, false );
}
static void export_vrml_varc( TriangleBag& triangles,
int top_layer, int bottom_layer,
double centerx, double centery,
double arc_startx, double arc_starty,
double arc_angle )
{
VLoop loop;
loop.z_top = layer_z[top_layer];
loop.z_bottom = layer_z[bottom_layer];
double start_angle = atan2( arc_starty - centery, arc_startx - centerx );
double radius = hypot( arc_starty - centery, arc_startx - centerx );
int count = KiROUND( arc_angle / 360.0 * SEGM_COUNT_PER_360 );
if( count < 0 )
count = -count;
if( count == 0 )
count = 1;
double divisions = arc_angle*M_PI/180.0 / count;
double alpha = 0;
for( int ii = 0; ii <= count; alpha += divisions, ii++ )
{
double angle_rot = start_angle + alpha;
loop.add( centerx + cos( angle_rot ) * radius, centery + sin( angle_rot ) * radius );
}
loop.bag( triangles );
}
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static void export_vrml_drawsegment( DRAWSEGMENT* drawseg ) //{{{
{
int layer = drawseg->GetLayer();
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double w = drawseg->GetWidth();
double x = drawseg->GetStart().x;
double y = drawseg->GetStart().y;
double xf = drawseg->GetEnd().x;
double yf = drawseg->GetEnd().y;
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// Items on the edge layer are high, not thick
if( layer == EDGE_N )
{
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switch( drawseg->GetShape() )
{
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// There is a special 'varc' primitive for this
case S_ARC:
export_vrml_varc( layer_triangles[layer],
FIRST_COPPER_LAYER, LAST_COPPER_LAYER,
x, y, xf, yf, drawseg->GetAngle()/10 );
break;
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// Circles on edge are usually important holes
case S_CIRCLE:
export_vrml_hole( layer_triangles[layer],
FIRST_COPPER_LAYER, LAST_COPPER_LAYER, x, y,
hypot( xf - x, yf - y ) / 2 );
break;
default:
{
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// Simply a quad
double z_top = layer_z[FIRST_COPPER_LAYER];
double z_bottom = layer_z[LAST_COPPER_LAYER];
bag_vquad( layer_triangles[layer], x, y, xf, yf, z_top, z_bottom );
break;
}
}
}
else
{
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switch( drawseg->GetShape() )
{
case S_ARC:
export_vrml_arc( layer,
(double) drawseg->GetCenter().x,
(double) drawseg->GetCenter().y,
(double) drawseg->GetArcStart().x,
(double) drawseg->GetArcStart().y,
w, drawseg->GetAngle()/10 );
break;
case S_CIRCLE:
export_vrml_circle( layer, x, y, xf, yf, w );
break;
default:
export_vrml_line( layer, x, y, xf, yf, w, 1 );
break;
}
}
}
/* C++ doesn't have closures and neither continuation forms... this is
* for coupling the vrml_text_callback with the common parameters */
static int s_text_layer;
static int s_text_width;
static void vrml_text_callback( int x0, int y0, int xf, int yf )
{
export_vrml_line( s_text_layer, x0, y0, xf, yf, s_text_width, 1 );
}
static void export_vrml_pcbtext( TEXTE_PCB* text )
{
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// Coupling by globals! Ewwww...
s_text_layer = text->GetLayer();
s_text_width = text->m_Thickness;
wxSize size = text->m_Size;
if( text->m_Mirror )
NEGATE( size.x );
if( text->m_MultilineAllowed )
{
wxPoint pos = text->m_Pos;
wxArrayString* list = wxStringSplit( text->m_Text, '\n' );
wxPoint offset;
offset.y = text->GetInterline();
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RotatePoint( &offset, text->GetOrientation() );
for( unsigned i = 0; i<list->Count(); i++ )
{
wxString txt = list->Item( i );
DrawGraphicText( NULL, NULL, pos, BLACK,
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txt, text->GetOrientation(), size,
text->m_HJustify, text->m_VJustify,
text->m_Thickness, text->m_Italic,
true,
vrml_text_callback );
pos += offset;
}
delete (list);
}
else
{
DrawGraphicText( NULL, NULL, text->m_Pos, BLACK,
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text->m_Text, text->GetOrientation(), size,
text->m_HJustify, text->m_VJustify,
text->m_Thickness, text->m_Italic,
true,
vrml_text_callback );
}
}
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static void export_vrml_drawings( BOARD* pcb ) //{{{
{
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// draw graphic items
for( EDA_ITEM* drawing = pcb->m_Drawings; drawing != 0; drawing = drawing->Next() )
{
switch( drawing->Type() )
{
case PCB_LINE_T:
export_vrml_drawsegment( (DRAWSEGMENT*) drawing );
break;
case PCB_TEXT_T:
export_vrml_pcbtext( (TEXTE_PCB*) drawing );
break;
default:
break;
}
}
}
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static void export_round_padstack( BOARD* pcb, double x, double y, double r, //{{{
int bottom_layer, int top_layer )
{
int copper_layers = pcb->GetCopperLayerCount( );
for( int layer = bottom_layer; layer < copper_layers; layer++ )
{
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// The last layer is always the component one, unless it's single face
if( (layer > FIRST_COPPER_LAYER) && (layer == copper_layers - 1) )
layer = LAST_COPPER_LAYER;
if( layer <= top_layer )
export_vrml_circle( layer, x, y, x + r / 2, y, r );
}
}
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static void export_vrml_via( BOARD* pcb, SEGVIA* via ) //{{{
{
double x, y, r, hole;
int top_layer, bottom_layer;
r = via->GetWidth() / 2;
hole = via->GetDrillValue() / 2;
x = via->GetStart().x;
y = via->GetStart().y;
via->ReturnLayerPair( &top_layer, &bottom_layer );
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// Export the via padstack
export_round_padstack( pcb, x, y, r, bottom_layer, top_layer );
// Drill a hole
export_vrml_hole( via_triangles[via->GetShape()], top_layer, bottom_layer, x, y, hole );
}
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static void export_vrml_tracks( BOARD* pcb ) //{{{
{
for( TRACK* track = pcb->m_Track; track != NULL; track = track->Next() )
{
if( track->Type() == PCB_VIA_T )
export_vrml_via( pcb, (SEGVIA*) track );
else
export_vrml_line( track->GetLayer(), track->GetStart().x, track->GetStart().y,
track->GetEnd().x, track->GetEnd().y, track->GetWidth(), 4 );
}
}
/* not used? @todo complete
static void export_vrml_zones( BOARD* pcb )
{
// Export fill segments
for( SEGZONE* segzone = pcb->m_Zone;
segzone != 0;
segzone = segzone->Next() )
{
// Fill tracks are exported with low subdivisions
if( segzone->Type() == PCB_ZONE_T )
export_vrml_line( segzone->GetLayer(), segzone->m_Start.x, segzone->m_Start.y,
segzone->m_End.x, segzone->m_End.y, segzone->m_Width, 1 );
}
// Export zone outlines
for( int i = 0; i < pcb->GetAreaCount(); i++ )
{
ZONE_CONTAINER* zone = pcb->GetArea( i );
if( ( zone->m_FilledPolysList.size() == 0 )
||( zone->m_ZoneMinThickness <= 1 ) )
continue;
int width = zone->m_ZoneMinThickness;
if( width > 0 )
{
int imax = zone->m_FilledPolysList.size() - 1;
int layer = zone->GetLayer();
CPolyPt* firstcorner = &zone->m_FilledPolysList[0];
CPolyPt* begincorner = firstcorner;
// I'm not really positive about what he's doing here...
for( int ic = 1; ic <= imax; ic++ )
{
CPolyPt* endcorner = &zone->m_FilledPolysList[ic];
if( begincorner->utility == 0 ) // Draw only basic outlines, not extra segments
export_vrml_line( layer, begincorner->x, begincorner->y,
endcorner->x, endcorner->y, width, 1 );
if( (endcorner->end_contour) || (ic == imax) ) // the last corner of a filled area is found: draw it
{
if( endcorner->utility == 0 ) // Draw only basic outlines, not extra segments
export_vrml_line( layer, endcorner->x, endcorner->y,
firstcorner->x, firstcorner->y, width, 1 );
ic++;
// A new contour?
if( ic < imax - 1 )
begincorner = firstcorner = &zone->m_FilledPolysList[ic];
}
else
begincorner = endcorner;
}
}
}
}
*/
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static void export_vrml_text_module( TEXTE_MODULE* module ) //{{{
{
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if( module->IsVisible() )
{
wxSize size = module->m_Size;
if( module->m_Mirror )
NEGATE( size.x ); // Text is mirrored
s_text_layer = module->GetLayer();
s_text_width = module->m_Thickness;
DrawGraphicText( NULL, NULL, module->m_Pos, BLACK,
module->m_Text, module->GetDrawRotation(), size,
module->m_HJustify, module->m_VJustify,
module->m_Thickness, module->m_Italic,
true,
vrml_text_callback );
}
}
static void export_vrml_edge_module( EDGE_MODULE* aOutline ) //{{{
{
int layer = aOutline->GetLayer();
double x = aOutline->GetStart().x;
double y = aOutline->GetStart().y;
double xf = aOutline->GetEnd().x;
double yf = aOutline->GetEnd().y;
double w = aOutline->GetWidth();
switch( aOutline->GetShape() )
{
case S_ARC:
export_vrml_arc( layer, x, y, xf, yf, w, aOutline->GetAngle()/10 );
break;
case S_CIRCLE:
export_vrml_circle( layer, x, y, xf, yf, w );
break;
default:
export_vrml_line( layer, x, y, xf, yf, w, 1 );
break;
}
}
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static void export_vrml_pad( BOARD* pcb, D_PAD* aPad ) //{{{
{
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double hole_drill_w = (double) aPad->GetDrillSize().x / 2;
double hole_drill_h = (double) aPad->GetDrillSize().y / 2;
double hole_drill = std::min( hole_drill_w, hole_drill_h );
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double hole_x = aPad->GetPosition().x;
double hole_y = aPad->GetPosition().y;
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// Export the hole on the edge layer
if( hole_drill > 0 )
{
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if( aPad->GetDrillShape() == PAD_OVAL )
{
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// Oblong hole (slot)
export_vrml_slot( layer_triangles[EDGE_N],
FIRST_COPPER_LAYER, LAST_COPPER_LAYER,
hole_x, hole_y, hole_drill_w, hole_drill_h, aPad->GetOrientation() );
}
else
{
// Drill a round hole
export_vrml_hole( layer_triangles[EDGE_N],
FIRST_COPPER_LAYER, LAST_COPPER_LAYER,
hole_x, hole_y, hole_drill );
}
}
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// The pad proper, on the selected layers
int layer_mask = aPad->GetLayerMask();
int copper_layers = pcb->GetCopperLayerCount( );
// The (maybe offseted) pad position
wxPoint pad_pos = aPad->ReturnShapePos();
double pad_x = pad_pos.x;
double pad_y = pad_pos.y;
wxSize pad_delta = aPad->GetDelta();
double pad_dx = pad_delta.x / 2;
double pad_dy = pad_delta.y / 2;
double pad_w = aPad->GetSize().x / 2;
double pad_h = aPad->GetSize().y / 2;
for( int layer = FIRST_COPPER_LAYER; layer < copper_layers; layer++ )
{
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// The last layer is always the component one, unless it's single face
if( (layer > FIRST_COPPER_LAYER) && (layer == copper_layers - 1) )
layer = LAST_COPPER_LAYER;
if( layer_mask & (1 << layer) )
{
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// OK, the pad is on this layer, export it
switch( aPad->GetShape() )
{
case PAD_CIRCLE:
export_vrml_circle( layer, pad_x, pad_y,
pad_x + pad_w / 2, pad_y, pad_w );
break;
case PAD_OVAL:
export_vrml_oval_pad( layer, pad_x, pad_y,
pad_w * 2, pad_h * 2, aPad->GetOrientation() );
break;
case PAD_RECT:
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// Just to be sure :D
pad_dx = 0;
pad_dy = 0;
case PAD_TRAPEZOID:
{
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int coord[8] =
{
// Dick Hollenbeck's KiROUND R&D // This provides better project control over rounding to int from double // than wxRound() did. This scheme provides better logging in Debug builds // and it provides for compile time calculation of constants. #include <stdio.h> #include <assert.h> #include <limits.h> //-----<KiROUND KIT>------------------------------------------------------------ /** * KiROUND * rounds a floating point number to an int using * "round halfway cases away from zero". * In Debug build an assert fires if will not fit into an int. */ #if defined( DEBUG ) // DEBUG: a macro to capture line and file, then calls this inline static inline int KiRound( double v, int line, const char* filename ) { v = v < 0 ? v - 0.5 : v + 0.5; if( v > INT_MAX + 0.5 ) { printf( "%s: in file %s on line %d, val: %.16g too ' > 0 ' for int\n", __FUNCTION__, filename, line, v ); } else if( v < INT_MIN - 0.5 ) { printf( "%s: in file %s on line %d, val: %.16g too ' < 0 ' for int\n", __FUNCTION__, filename, line, v ); } return int( v ); } #define KiROUND( v ) KiRound( v, __LINE__, __FILE__ ) #else // RELEASE: a macro so compile can pre-compute constants. #define KiROUND( v ) int( (v) < 0 ? (v) - 0.5 : (v) + 0.5 ) #endif //-----</KiROUND KIT>----------------------------------------------------------- // Only a macro is compile time calculated, an inline function causes a static constructor // in a situation like this. // Therefore the Release build is best done with a MACRO not an inline function. int Computed = KiROUND( 14.3 * 8 ); int main( int argc, char** argv ) { for( double d = double(INT_MAX)-1; d < double(INT_MAX)+8; d += 2.0 ) { int i = KiROUND( d ); printf( "t: %d %.16g\n", i, d ); } return 0; }
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KiROUND(-pad_w - pad_dy), KiROUND(+pad_h + pad_dx),
KiROUND(-pad_w + pad_dy), KiROUND(-pad_h - pad_dx),
KiROUND(+pad_w - pad_dy), KiROUND(+pad_h - pad_dx),
KiROUND(+pad_w + pad_dy), KiROUND(-pad_h + pad_dx),
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};
for( int i = 0; i < 4; i++ )
{
RotatePoint( &coord[i * 2], &coord[i * 2 + 1], aPad->GetOrientation() );
// Dick Hollenbeck's KiROUND R&D // This provides better project control over rounding to int from double // than wxRound() did. This scheme provides better logging in Debug builds // and it provides for compile time calculation of constants. #include <stdio.h> #include <assert.h> #include <limits.h> //-----<KiROUND KIT>------------------------------------------------------------ /** * KiROUND * rounds a floating point number to an int using * "round halfway cases away from zero". * In Debug build an assert fires if will not fit into an int. */ #if defined( DEBUG ) // DEBUG: a macro to capture line and file, then calls this inline static inline int KiRound( double v, int line, const char* filename ) { v = v < 0 ? v - 0.5 : v + 0.5; if( v > INT_MAX + 0.5 ) { printf( "%s: in file %s on line %d, val: %.16g too ' > 0 ' for int\n", __FUNCTION__, filename, line, v ); } else if( v < INT_MIN - 0.5 ) { printf( "%s: in file %s on line %d, val: %.16g too ' < 0 ' for int\n", __FUNCTION__, filename, line, v ); } return int( v ); } #define KiROUND( v ) KiRound( v, __LINE__, __FILE__ ) #else // RELEASE: a macro so compile can pre-compute constants. #define KiROUND( v ) int( (v) < 0 ? (v) - 0.5 : (v) + 0.5 ) #endif //-----</KiROUND KIT>----------------------------------------------------------- // Only a macro is compile time calculated, an inline function causes a static constructor // in a situation like this. // Therefore the Release build is best done with a MACRO not an inline function. int Computed = KiROUND( 14.3 * 8 ); int main( int argc, char** argv ) { for( double d = double(INT_MAX)-1; d < double(INT_MAX)+8; d += 2.0 ) { int i = KiROUND( d ); printf( "t: %d %.16g\n", i, d ); } return 0; }
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coord[i * 2] += KiROUND( pad_x );
coord[i * 2 + 1] += KiROUND( pad_y );
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}
bag_flat_quad( layer, coord[0], coord[1],
coord[2], coord[3],
coord[4], coord[5],
coord[6], coord[7] );
}
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break;
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default:
;
}
}
}
}
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// From axis/rot to quaternion
static void build_quat( double x, double y, double z, double a, double q[4] )
{
double sina = sin( a / 2 );
q[0] = x * sina;
q[1] = y * sina;
q[2] = z * sina;
q[3] = cos( a / 2 );
}
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// From quaternion to axis/rot
static void from_quat( double q[4], double rot[4] )
{
rot[3] = acos( q[3] ) * 2;
for( int i = 0; i < 3; i++ )
{
rot[i] = q[i] / sin( rot[3] / 2 );
}
}
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// Quaternion composition
static void compose_quat( double q1[4], double q2[4], double qr[4] )
{
double tmp[4];
tmp[0] = q2[3] *q1[0] + q2[0] *q1[3] + q2[1] *q1[2] - q2[2] *q1[1];
tmp[1] = q2[3] *q1[1] + q2[1] *q1[3] + q2[2] *q1[0] - q2[0] *q1[2];
tmp[2] = q2[3] *q1[2] + q2[2] *q1[3] + q2[0] *q1[1] - q2[1] *q1[0];
tmp[3] = q2[3] *q1[3] - q2[0] *q1[0] - q2[1] *q1[1] - q2[2] *q1[2];
qr[0] = tmp[0]; qr[1] = tmp[1];
qr[2] = tmp[2]; qr[3] = tmp[3];
}
static void export_vrml_module( BOARD* aPcb, MODULE* aModule,
FILE* aOutputFile,
double aVRMLModelsToBiu,
bool aExport3DFiles, const wxString & a3D_Subdir )
{
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// Reference and value
export_vrml_text_module( aModule->m_Reference );
export_vrml_text_module( aModule->m_Value );
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// Export module edges
for( EDA_ITEM* item = aModule->m_Drawings; item != NULL; item = item->Next() )
{
switch( item->Type() )
{
case PCB_MODULE_TEXT_T:
export_vrml_text_module( dynamic_cast<TEXTE_MODULE*>(item) );
break;
case PCB_MODULE_EDGE_T:
export_vrml_edge_module( dynamic_cast<EDGE_MODULE*>(item) );
break;
default:
break;
}
}
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// Export pads
for( D_PAD* pad = aModule->m_Pads; pad; pad = pad->Next() )
export_vrml_pad( aPcb, pad );
bool isFlipped = aModule->GetLayer() == LAYER_N_BACK;
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// Export the object VRML model(s)
for( S3D_MASTER* vrmlm = aModule->m_3D_Drawings; vrmlm != 0; vrmlm = vrmlm->Next() )
{
wxString fname = vrmlm->m_Shape3DName;
if( fname.IsEmpty() )
continue;
if( ! wxFileName::FileExists( fname ) )
{
wxFileName fn = fname;
fname = wxGetApp().FindLibraryPath( fn );
if( fname.IsEmpty() ) // keep "short" name if full filemane not found
fname = vrmlm->m_Shape3DName;
}
fname.Replace(wxT("\\"), wxT("/" ) );
wxString source_fname = fname;
if( aExport3DFiles ) // Change illegal characters in short filename
{
ChangeIllegalCharacters( fname, true );
fname = a3D_Subdir + wxT("/") + fname;
if( !wxFileExists( fname ) )
wxCopyFile( source_fname, fname );
}
/* Calculate 3D shape rotation:
* this is the rotation parameters, with an additional 180 deg rotation
* for footprints that are flipped
* When flipped, axis rotation is the horizontal axis (X axis)
*/
double rotx = - vrmlm->m_MatRotation.x;
double roty = - vrmlm->m_MatRotation.y;
double rotz = - vrmlm->m_MatRotation.z;
if ( isFlipped )
{
rotx += 180.0;
NEGATE(roty);
NEGATE(rotz);
}
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// Do some quaternion munching
double q1[4], q2[4], rot[4];
build_quat( 1, 0, 0, rotx / 180.0 * M_PI, q1 );
build_quat( 0, 1, 0, roty / 180.0 * M_PI, q2 );
compose_quat( q1, q2, q1 );
build_quat( 0, 0, 1, rotz / 180.0 * M_PI, q2 );
compose_quat( q1, q2, q1 );
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// Note here aModule->GetOrientation() is in 0.1 degrees,
// so module rotation is aModule->GetOrientation() / 1800.0
build_quat( 0, 0, 1, aModule->GetOrientation() / 1800.0 * M_PI, q2 );
compose_quat( q1, q2, q1 );
from_quat( q1, rot );
fprintf( aOutputFile, "Transform {\n" );
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// A null rotation would fail the acos!
if( rot[3] != 0.0 )
{
fprintf( aOutputFile, " rotation %g %g %g %g\n", rot[0], rot[1], rot[2], rot[3] );
}
// adjust 3D shape offset position
int offsetx = vrmlm->m_MatPosition.x;
int offsety = vrmlm->m_MatPosition.y;
double offsetz = vrmlm->m_MatPosition.z;
if ( isFlipped )
NEGATE(offsetz);
else // In normal mode, Y axis is reversed in Pcbnew.
NEGATE(offsety);
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RotatePoint(&offsetx, &offsety, aModule->GetOrientation());
fprintf( aOutputFile, " translation %g %g %g\n",
(double) (offsetx + aModule->m_Pos.x),
- (double)(offsety + aModule->m_Pos.y), // Y axis is reversed in Pcbnew
offsetz + layer_z[aModule->GetLayer()] );
fprintf( aOutputFile, " scale %g %g %g\n",
vrmlm->m_MatScale.x * aVRMLModelsToBiu,
vrmlm->m_MatScale.y * aVRMLModelsToBiu,
vrmlm->m_MatScale.z * aVRMLModelsToBiu );
fprintf( aOutputFile,
" children [\n Inline {\n url \"%s\"\n } ]\n",
TO_UTF8( fname ) );
fprintf( aOutputFile, " }\n" );
}
}
static void write_and_empty_triangle_bag( FILE* output_file, TriangleBag& triangles, int color )
{
if( !triangles.empty() )
{
write_triangle_bag( output_file, color, triangles );
triangles.clear( );
}
}
/**
* Function ExportVRML_File
* Creates the file(s) exporting current BOARD to a VRML file.
* @param aFullFileName = the full filename of the file to create
* @param aMMtoWRMLunit = the general scaling factor. 1.0 to export in mm
* @param aExport3DFiles = true to copy 3D shapes in the subdir a3D_Subdir
* @param a3D_Subdir = sub directory where 3D shapes files are copied
* used only when aExport3DFiles == true
* @return true if Ok.
*/
/* Note1:
* When copying 3D shapes files, the new filename is build from
* the full path name, changing the separators by underscore.
* this is needed because files with the same shortname can exist in different directories
* Note 2:
* ExportVRML_File generates coordinates in board units (BIU) inside the file.
* (TODO: use mm inside the file)
* A general scale transform is applied to the whole file
* (1.0 to have the actual WRML unit im mm, 0.001 to have the actual WRML unit im meter
* Note 3:
* For 3D models built by a 3D modeler, the unit is 0,1 inch
* A specfic scale is applied to 3D models to convert them to BIU
*
*/
bool PCB_EDIT_FRAME::ExportVRML_File( const wxString & aFullFileName,
double aMMtoWRMLunit, bool aExport3DFiles,
const wxString & a3D_Subdir )
{
wxString msg;
FILE* output_file;
BOARD* pcb = GetBoard();
output_file = wxFopen( aFullFileName, wxT( "wt" ) );
if( output_file == NULL )
return false;
// Switch the locale to standard C (needed to print floating point numbers like 1.3)
SetLocaleTo_C_standard();
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// Begin with the usual VRML boilerplate
wxString name = aFullFileName;
name.Replace(wxT("\\"), wxT("/" ) );
ChangeIllegalCharacters( name, false );
fprintf( output_file, "#VRML V2.0 utf8\n"
"WorldInfo {\n"
" title \"%s - Generated by Pcbnew\"\n"
"}\n", TO_UTF8( name ) );
/* The would be in BIU and not in meters, as the standard wants.
* It is trivial to embed everything in a transform node to
* fix it. For example here we build the world in inches...
*/
// Global VRML scale to export to a different scale.
// (aMMtoWRMLScale = 1.0 to export in mm)
double boardIU2WRML = aMMtoWRMLunit / MM_PER_IU;
fprintf( output_file, "Transform {\n" );
fprintf( output_file, " scale %g %g %g\n",
boardIU2WRML , boardIU2WRML, boardIU2WRML );
/* Define the translation to have the board centre to the 2D axis origin
* more easy for rotations...
*/
++PCBNew * Removed Pcb_Frame argument from BOARD() constructor, since it precludes having a BOARD being edited by more than one editor, it was a bad design. And this meant removing m_PcbFrame from BOARD. * removed BOARD::SetWindowFrame(), and BOARD::m_PcbFrame * Removed the global BOARD_DESIGN_SETTINGS which was in class_board.cpp * added BOARD_DESIGN_SETTINGS to the BOARD class, a full instance * a couple dialogs now only change BOARD_DESIGN_SETTINGS when OK is pressed, such as dialog_mask_clearance, dialog_drc, etc. * Removed common/pcbcommon.cpp's int g_CurrentVersionPCB = 1 and replaced it with build_version.h's #define BOARD_FILE_VERSION, although there may be a better place for this constant. * Made the public functions in PARAM_CFG_ARRAY be type const. void SaveParam(..) const and void ReadParam(..) const * PARAM_CFG_BASE now has virtual destructor since we have various way of destroying the derived class and boost::ptr_vector must be told about this. * Pass const PARAM_CFG_ARRAY& instead of PARAM_CFG_ARRAY so that we can use an automatic PARAM_CFG_ARRAY which is on the stack.\ * PCB_EDIT_FRAME::GetProjectFileParameters() may no longer cache the array, since it has to access the current BOARD and the BOARD can change. Remember BOARD_DESIGN_SETTINGS are now in the BOARD. * Made the m_BoundingBox member private, this was a brutally hard task, and indicative of the lack of commitment to accessors and object oriented design on the part of KiCad developers. We must do better. Added BOARD::GetBoundingBox, SetBoundingBox(), ComputeBoundingBox(). * Added PCB_BASE_FRAME::GetBoardBoundingBox() which calls BOARD::ComputeBoundingBox()
2011-12-05 06:15:33 +00:00
EDA_RECT bbbox = pcb->ComputeBoundingBox();
double dx = boardIU2WRML * bbbox.Centre().x;
double dy = boardIU2WRML * bbbox.Centre().y;
++PCBNew * Removed Pcb_Frame argument from BOARD() constructor, since it precludes having a BOARD being edited by more than one editor, it was a bad design. And this meant removing m_PcbFrame from BOARD. * removed BOARD::SetWindowFrame(), and BOARD::m_PcbFrame * Removed the global BOARD_DESIGN_SETTINGS which was in class_board.cpp * added BOARD_DESIGN_SETTINGS to the BOARD class, a full instance * a couple dialogs now only change BOARD_DESIGN_SETTINGS when OK is pressed, such as dialog_mask_clearance, dialog_drc, etc. * Removed common/pcbcommon.cpp's int g_CurrentVersionPCB = 1 and replaced it with build_version.h's #define BOARD_FILE_VERSION, although there may be a better place for this constant. * Made the public functions in PARAM_CFG_ARRAY be type const. void SaveParam(..) const and void ReadParam(..) const * PARAM_CFG_BASE now has virtual destructor since we have various way of destroying the derived class and boost::ptr_vector must be told about this. * Pass const PARAM_CFG_ARRAY& instead of PARAM_CFG_ARRAY so that we can use an automatic PARAM_CFG_ARRAY which is on the stack.\ * PCB_EDIT_FRAME::GetProjectFileParameters() may no longer cache the array, since it has to access the current BOARD and the BOARD can change. Remember BOARD_DESIGN_SETTINGS are now in the BOARD. * Made the m_BoundingBox member private, this was a brutally hard task, and indicative of the lack of commitment to accessors and object oriented design on the part of KiCad developers. We must do better. Added BOARD::GetBoundingBox, SetBoundingBox(), ComputeBoundingBox(). * Added PCB_BASE_FRAME::GetBoardBoundingBox() which calls BOARD::ComputeBoundingBox()
2011-12-05 06:15:33 +00:00
fprintf( output_file, " translation %g %g 0.0\n", -dx, dy );
fprintf( output_file, " children [\n" );
2012-02-19 04:02:19 +00:00
// Preliminary computation: the z value for each layer
compute_layer_Zs( pcb );
2012-02-19 04:02:19 +00:00
// Drawing and text on the board, and edges which are special
export_vrml_drawings( pcb );
2012-02-19 04:02:19 +00:00
// Export vias and trackage
export_vrml_tracks( pcb );
2012-02-19 04:02:19 +00:00
// Export zone fills
/* TODO export_vrml_zones(pcb);
*/
/* scaling factor to convert 3D models to board units (decimils)
* Usually we use Wings3D to create thems.
* One can consider the 3D units is 0.1 inch (2.54 mm)
* So the scaling factor from 0.1 inch to board units
* is 0.1 / general_scaling_factor
*/
double wrml_3D_models_scaling_factor = 2.54 / boardIU2WRML;
2012-02-19 04:02:19 +00:00
// Export footprints
for( MODULE* module = pcb->m_Modules; module != 0; module = module->Next() )
export_vrml_module( pcb, module, output_file,
wrml_3D_models_scaling_factor,
aExport3DFiles, a3D_Subdir );
/* Output the bagged triangles for each layer
* Each layer will be a separate shape */
for( int layer = 0; layer < LAYER_COUNT; layer++ )
write_and_empty_triangle_bag( output_file,
layer_triangles[layer],
pcb->GetLayerColor(layer) );
2012-02-19 04:02:19 +00:00
// Same thing for the via layers
for( int i = 0; i < 4; i++ )
write_and_empty_triangle_bag( output_file,
via_triangles[i],
pcb->GetVisibleElementColor( VIAS_VISIBLE + i ) );
2012-02-19 04:02:19 +00:00
// Close the outer 'transform' node
fputs( "]\n}\n", output_file );
// End of work
fclose( output_file );
SetLocaleTo_Default(); // revert to the current locale
return true;
}
/*
* some characters cannot be used in filenames,
* this function change them to "_"
*/
static void ChangeIllegalCharacters( wxString & aFileName, bool aDirSepIsIllegal )
{
if( aDirSepIsIllegal )
aFileName.Replace(wxT("/"), wxT("_" ) );
aFileName.Replace(wxT(" "), wxT("_" ) );
aFileName.Replace(wxT(":"), wxT("_" ) );
}