specctra work

change_log.txt

@@ -14,6 +14,7 @@ email address.
   * Changed specctra.h's POINT to use double for coordinates.  Changed format
     string for Format()ing a double.
   * Changed specctra_export.cpp to actually output an incomplete file.
+  * Added BOARD::GetCopperLayerCount() and BOARD::GetLayerName().
 
 
 2008-Jan-21 UPDATE   Dick Hollenbeck <dick@softplc.com>

pcbnew/specctra.h

@@ -837,6 +837,10 @@ public:
 };
 
 
+/**
+ * Class VIA
+ * corresponds to the <via_descriptor> in the specctra dsn spec.
+ */
 class VIA : public ELEM
 {
     friend class SPECCTRA_DB;

pcbnew/specctra_export.cpp

@@ -68,14 +68,17 @@ void WinEDA_PcbFrame::ExportToSPECCTRA( wxCommandEvent& event )
     {    
         db.FromBOARD( m_Pcb );
         db.ExportPCB(  fullFileName, true );
+        
+        // if an exception is thrown by FromBOARD or Export(), then 
+        // ~SPECCTRA_DB() will close the file.
     } 
     catch ( IOError ioe )
     {
         DisplayError( this, ioe.errorText );
+        return;
     }
     
-    // if an exception is thrown by FromBOARD or Export(), then 
-    // ~SPECCTRA_DB() will close the file.
+    // @todo display a message saying the export is complete.
 }
 
 
@@ -100,11 +103,17 @@ static inline void swap( POINT_PAIR& pair )
 }
 
 
+/**
+ * Function mapPt
+ * converts a Kicad point into a DSN file point.  Kicad's BOARD coordinates
+ * are in deci-mils  (i.e. 1/10,000th of an inch) and we are exporting in units
+ * of mils, so we have to divide by 10.
+ */
 static POINT mapPt( const wxPoint& pt )
 {
     POINT ret;
-    ret.x = pt.x;
-    ret.y = -pt.y;      // make y negative, since it is increasing going down.
+    ret.x = pt.x / 10.0;
+    ret.y = -pt.y /10.0;      // make y negative, since it is increasing going down.
     return ret;
 }
 
@@ -138,7 +147,7 @@ static void swapEnds( POINT_PAIRS& aList )
 
 /**
  * Function isRectangle
- * tests to see if the POINT_PAIRS list make up a vertically/horizontally 
+ * tests to see if the POINT_PAIRS list makes up a vertically/horizontally 
  * oriented rectangle.
  * @return bool - true if there are 4 point pairs making a rectangle.
  */ 
@@ -177,13 +186,16 @@ void SPECCTRA_DB::FromBOARD( BOARD* aBoard ) throw( IOError )
     if( !pcb )
         pcb = SPECCTRA_DB::MakePCB();
 
-    //-----<header stuff>-------------------------------------------------    
+    //-----<unit_descriptor> & <resolution_descriptor>--------------------
+    {    
         pcb->unit->units = T_mil;
         pcb->resolution->units = T_mil;
-    pcb->resolution->value = 10;
+        pcb->resolution->value = 100;
+    }
 
-    //-----<board edges>--------------------------------------------------
     
+    //-----<boundary_descriptor>------------------------------------------
+    {
         // get all the DRAWSEGMENTS into 'items', then look for layer == EDGE_N,
         // and those segments comprize the board's perimeter.
         const KICAD_T  scanDRAWSEGMENTS[] = { TYPEDRAWSEGMENT, EOT };
@@ -211,21 +223,21 @@ void SPECCTRA_DB::FromBOARD( BOARD* aBoard ) throw( IOError )
         {
             swapEnds( ppairs );
     
-#if defined(DEBUG)        
+    #if defined(DEBUG)        
             for( unsigned i=0;  i<ppairs.size();  ++i )
             {
                 POINT_PAIR* p = &ppairs[i];
                 p->item->Show( 0, std::cout );
             }
-#endif        
+    #endif        
     
             BOUNDARY*   boundary = new BOUNDARY(0);
     
             if( isRectangle( ppairs ) )
             {
                 RECTANGLE*  rect = new RECTANGLE( boundary );
-            
                 rect->layer_id = "pcb";
+                
                 // opposite corners
                 rect->point0 = ppairs[0].p1;
                 rect->point1 = ppairs[2].p1;
@@ -270,9 +282,35 @@ void SPECCTRA_DB::FromBOARD( BOARD* aBoard ) throw( IOError )
             
             pcb->structure->SetBOUNDARY( boundary );
         }
+    }
+
     
-    //-----<layers>-------------------------------------------------------
+    //-----<layer_descriptor>-----------------------------------------------
+    {
+        // specctra wants top physical layer first, then going down to the 
+        // bottom most physical layer in physical sequence.
+        // @question : why does Kicad not display layers in that order?
+        int layerCount = aBoard->GetCopperLayerCount();
         
+        for( int ndx=layerCount-1;  ndx >= 0;  --ndx )
+        {
+            wxString    layerName = aBoard->GetLayerName( ndx>0 && ndx==layerCount-1 ? LAYER_CMP_N : ndx );
+            LAYER*      layer = new LAYER( pcb->structure );
+            
+            layer->name = CONV_TO_UTF8( layerName );
+            
+            // layer->type =
+            pcb->structure->layers.push_back( layer );
+        }
+    }
+    
+    //-----<build the padstack list here, no output>------------------------
+    
+    
+    //-----<via_descriptor>-------------------------------------------------
+    {
+        // Output the vias in the padstack list here, by name
+    }
 
     
 }