haskal
/
kicad
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Specctra export: export roundrect pads with the right shape

This commit is contained in:
jean-pierre charras 2018-02-03 18:50:55 +01:00
parent fddd5abef1
commit a7a7f62cb7
2 changed files with 67 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
pcbnew/specctra_import_export/specctra_export.cpp
View File

@ -55,6 +55,7 @@
#include <geometry/shape_poly_set.h>
#include <geometry/convex_hull.h>
#include <convert_basic_shapes_to_polygon.h>
#include "specctra.h"
@ -489,6 +490,70 @@ PADSTACK* SPECCTRA_DB::makePADSTACK( BOARD* aBoard, D_PAD* aPad )
}
break;
case PAD_SHAPE_ROUNDRECT:
{
// Export the shape as as polygon, round rect does not exist as primitive
const int circleToSegmentsCount = 36;
int rradius = aPad->GetRoundRectCornerRadius();
SHAPE_POLY_SET cornerBuffer;
// Use a slightly bigger shape because the round corners are approximated by
// segments, giving to the polygon a slightly smaller shape than the actual shape
/* calculates the coeff to compensate radius reduction of holes clearance
* due to the segment approx.
* For a circle the min radius is radius * cos( 2PI / s_CircleToSegmentsCount / 2)
* correctionFactor is 1 /cos( PI/s_CircleToSegmentsCount )
*/
double correctionFactor = 1.0 / cos( M_PI / (double) circleToSegmentsCount );
int extra_clearance = KiROUND( rradius * (1.0 - correctionFactor ) ) + 1;
wxSize psize = aPad->GetSize();
psize.x += extra_clearance*2;
psize.y += extra_clearance*2;
rradius += extra_clearance;
TransformRoundRectToPolygon( cornerBuffer, wxPoint(0,0), psize,
0, rradius, circleToSegmentsCount );
SHAPE_LINE_CHAIN& polygonal_shape = cornerBuffer.Outline( 0 );
for( int ndx=0; ndx < reportedLayers; ++ndx )
{
SHAPE* shape = new SHAPE( padstack );
padstack->Append( shape );
// a T_polygon exists as a PATH
PATH* polygon = new PATH( shape, T_polygon );
shape->SetShape( polygon );
polygon->SetLayerId( layerName[ndx] );
// append a closed polygon
POINT first_corner;
for( int idx = 0; idx < polygonal_shape.PointCount(); idx++ )
{
POINT corner( scale( polygonal_shape.Point( idx ).x ),
scale( -polygonal_shape.Point( idx ).y ) );
corner += dsnOffset;
polygon->AppendPoint( corner );
if( idx == 0 )
first_corner = corner;
}
polygon->AppendPoint( first_corner ); // Close polygon
}
// this string _must_ be unique for a given physical shape
snprintf( name, sizeof(name), "RoundRect%sPad_%.6gx%.6g_%.6g_um",
uniqifier.c_str(),
IU2um( aPad->GetSize().x ),
IU2um( aPad->GetSize().y ), IU2um( rradius ) );
name[ sizeof(name) - 1 ] = 0;
padstack->SetPadstackId( name );
}
break;
case PAD_SHAPE_CUSTOM:
{
std::vector<wxPoint> polygonal_shape;
@ -519,7 +584,7 @@ PADSTACK* SPECCTRA_DB::makePADSTACK( BOARD* aBoard, D_PAD* aPad )
polygon->SetLayerId( layerName[ndx] );
for( unsigned idx = 0; idx <= polygonal_shape.size(); idx++ )
for( unsigned idx = 0; idx < polygonal_shape.size(); idx++ )
{
POINT corner( scale( polygonal_shape[idx].x ), scale( -polygonal_shape[idx].y ) );
corner += dsnOffset;

2
pcbnew/specctra_import_export/specctra_import.cpp
View File

@ -152,7 +152,7 @@ namespace DSN {
* @param distance The session file length to convert.
* @param aResolution The session UNIT_RES which holds the engineering unit
* specifier
* @return int - The KiCad length in deci-mils
* @return int - The KiCad length in internal unit
*/
static int scale( double distance, UNIT_RES* aResolution )
{