1010 lines
40 KiB
C++
1010 lines
40 KiB
C++
/***
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* @file board_items_to_polygon_shape_transform.cpp
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* @brief function to convert shapes of items ( pads, tracks... ) to polygons
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*/
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/* Function to convert pads and tranck shapes to polygons
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* Used to fill zones areas
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*/
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#include <vector>
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#include <fctsys.h>
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#include <polygons_defs.h>
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#include <drawtxt.h>
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#include <pcbnew.h>
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#include <wxPcbStruct.h>
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#include <trigo.h>
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#include <class_pad.h>
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#include <class_track.h>
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#include <class_drawsegment.h>
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#include <class_pcb_text.h>
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#include <class_zone.h>
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#include <class_module.h>
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#include <class_edge_mod.h>
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#include <convert_basic_shapes_to_polygon.h>
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/* generate pads shapes on layer aLayer as polygons,
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* and adds these polygons to aCornerBuffer
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* aCornerBuffer = the buffer to store polygons
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* aInflateValue = an additionnal size to add to pad shapes
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* aCircleToSegmentsCount = number of segments to approximate a circle
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* aCorrectionFactor = the correction to apply to a circle radius
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* to generate the polygon.
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* if aCorrectionFactor = 1.0, the polygon is inside the circle
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* the radius of circle approximated by segments is
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* initial radius * aCorrectionFactor
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*/
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void MODULE::TransformPadsShapesWithClearanceToPolygon( LAYER_NUM aLayer,
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CPOLYGONS_LIST& aCornerBuffer,
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int aInflateValue,
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int aCircleToSegmentsCount,
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double aCorrectionFactor )
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{
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D_PAD* pad = Pads();
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wxSize margin;
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for( ; pad != NULL; pad = pad->Next() )
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{
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if( !pad->IsOnLayer(aLayer) )
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continue;
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switch( aLayer )
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{
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case SOLDERMASK_N_FRONT:
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case SOLDERMASK_N_BACK:
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margin.x = margin.y = pad->GetSolderMaskMargin() + aInflateValue;
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break;
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case SOLDERPASTE_N_FRONT:
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case SOLDERPASTE_N_BACK:
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margin = pad->GetSolderPasteMargin();
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margin.x += aInflateValue;
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margin.y += aInflateValue;
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break;
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default:
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margin.x = margin.y = aInflateValue;
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break;
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}
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pad->BuildPadShapePolygon( aCornerBuffer, margin,
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aCircleToSegmentsCount, aCorrectionFactor );
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}
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}
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/* generate shapes of graphic items (outlines) on layer aLayer as polygons,
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* and adds these polygons to aCornerBuffer
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* aCornerBuffer = the buffer to store polygons
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* aInflateValue = a value to inflate shapes
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* aCircleToSegmentsCount = number of segments to approximate a circle
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* aCorrectionFactor = the correction to apply to the circle radius
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* to generate the polygon.
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* if aCorrectionFactor = 1.0, the polygon is inside the circle
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* the radius of circle approximated by segments is
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* initial radius * aCorrectionFactor
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*/
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void MODULE::TransformGraphicShapesWithClearanceToPolygonSet(
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LAYER_NUM aLayer,
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CPOLYGONS_LIST& aCornerBuffer,
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int aInflateValue,
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int aCircleToSegmentsCount,
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double aCorrectionFactor )
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{
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EDGE_MODULE* outline;
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for( EDA_ITEM* item = GraphicalItems(); item != NULL; item = item->Next() )
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{
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switch( item->Type() )
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{
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case PCB_MODULE_TEXT_T:
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break;
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case PCB_MODULE_EDGE_T:
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outline = (EDGE_MODULE*) item;
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if( outline->GetLayer() != aLayer )
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break;
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switch( outline->GetShape() )
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{
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case S_SEGMENT:
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TransformRoundedEndsSegmentToPolygon( aCornerBuffer,
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outline->GetStart(),
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outline->GetEnd(),
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aCircleToSegmentsCount,
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outline->GetWidth() );
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break;
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case S_CIRCLE:
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TransformRingToPolygon( aCornerBuffer, outline->GetCenter(),
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outline->GetRadius(), aCircleToSegmentsCount,
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outline->GetWidth() );
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break;
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case S_ARC:
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TransformArcToPolygon( aCornerBuffer,
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outline->GetCenter(), outline->GetArcStart(),
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outline->GetAngle(),
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aCircleToSegmentsCount, outline->GetWidth() );
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break;
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case S_POLYGON:
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// for outline shape = S_POLYGON:
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// We must compute true coordinates from m_PolyPoints
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// which are relative to module position and module orientation = 0
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for( unsigned ii = 0; ii < outline->GetPolyPoints().size(); ii++ )
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{
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CPolyPt corner( outline->GetPolyPoints()[ii] );
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RotatePoint( &corner.x, &corner.y, GetOrientation() );
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corner.x += GetPosition().x;
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corner.y += GetPosition().y;
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aCornerBuffer.Append( corner );
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}
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aCornerBuffer.CloseLastContour();
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break;
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default:
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D( printf( "Error: Shape %d not implemented!\n",
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outline->GetShape() ); )
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break;
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}
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break;
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default:
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break;
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}
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}
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}
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/* Function TransformSolidAreasShapesToPolygonSet
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* Convert solid areas full shapes to polygon set
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* (the full shape is the polygon area with a thick outline)
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* Used in 3D view
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* Arcs (ends of segments) are approximated by segments
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* aCornerBuffer = a buffer to store the polygons
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* aCircleToSegmentsCount = the number of segments to approximate a circle
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* aCorrectionFactor = the correction to apply to arcs radius to roughly
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* keep arc radius when approximated by segments
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*/
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void ZONE_CONTAINER::TransformSolidAreasShapesToPolygonSet(
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CPOLYGONS_LIST& aCornerBuffer,
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int aCircleToSegmentsCount,
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double aCorrectionFactor )
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{
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unsigned cornerscount = GetFilledPolysList().GetCornersCount();
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CPOLYGONS_LIST polygonslist;
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if( cornerscount == 0 )
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return;
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// add filled areas polygons
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aCornerBuffer.Append( m_FilledPolysList );
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// add filled areas outlines, which are drawn with thich lines
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wxPoint seg_start, seg_end;
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int i_start_contour = 0;
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for( unsigned ic = 0; ic < cornerscount; ic++ )
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{
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seg_start.x = m_FilledPolysList[ ic ].x;
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seg_start.y = m_FilledPolysList[ ic ].y;
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unsigned ic_next = ic+1;
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if( !m_FilledPolysList[ic].end_contour &&
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ic_next < cornerscount )
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{
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seg_end.x = m_FilledPolysList[ ic_next ].x;
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seg_end.y = m_FilledPolysList[ ic_next ].y;
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}
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else
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{
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seg_end.x = m_FilledPolysList[ i_start_contour ].x;
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seg_end.y = m_FilledPolysList[ i_start_contour ].y;
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i_start_contour = ic_next;
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}
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TransformRoundedEndsSegmentToPolygon( aCornerBuffer, seg_start, seg_end,
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aCircleToSegmentsCount,
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GetMinThickness() );
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}
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}
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/**
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* Function TransformBoundingBoxWithClearanceToPolygon
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* Convert the text bonding box to a rectangular polygon
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* Used in filling zones calculations
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* Circles and arcs are approximated by segments
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* @param aCornerBuffer = a buffer to store the polygon
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* @param aClearanceValue = the clearance around the pad
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*/
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void TEXTE_PCB::TransformBoundingBoxWithClearanceToPolygon(
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CPOLYGONS_LIST& aCornerBuffer,
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int aClearanceValue ) const
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{
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if( GetText().Length() == 0 )
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return;
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CPolyPt corners[4]; // Buffer of polygon corners
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EDA_RECT rect = GetTextBox( -1 );
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rect.Inflate( aClearanceValue );
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corners[0].x = rect.GetOrigin().x;
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corners[0].y = rect.GetOrigin().y;
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corners[1].y = corners[0].y;
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corners[1].x = rect.GetRight();
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corners[2].x = corners[1].x;
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corners[2].y = rect.GetBottom();
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corners[3].y = corners[2].y;
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corners[3].x = corners[0].x;
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for( int ii = 0; ii < 4; ii++ )
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{
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// Rotate polygon
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RotatePoint( &corners[ii].x, &corners[ii].y, m_Pos.x, m_Pos.y, m_Orient );
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aCornerBuffer.Append( corners[ii] );
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}
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aCornerBuffer.CloseLastContour();
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}
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/* Function TransformShapeWithClearanceToPolygonSet
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* Convert the text shape to a set of polygons (one by segment)
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* Used in filling zones calculations and 3D view
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* Circles and arcs are approximated by segments
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* aCornerBuffer = CPOLYGONS_LIST to store the polygon corners
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* aClearanceValue = the clearance around the text
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* aCircleToSegmentsCount = the number of segments to approximate a circle
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* aCorrectionFactor = the correction to apply to circles radius to keep
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* clearance when the circle is approximated by segment bigger or equal
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* to the real clearance value (usually near from 1.0)
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*/
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// These variables are parameters used in addTextSegmToPoly.
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// But addTextSegmToPoly is a call-back function,
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// so we cannot send them as arguments.
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int s_textWidth;
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int s_textCircle2SegmentCount;
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CPOLYGONS_LIST* s_cornerBuffer;
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// This is a call back function, used by DrawGraphicText to draw the 3D text shape:
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static void addTextSegmToPoly( int x0, int y0, int xf, int yf )
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{
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TransformRoundedEndsSegmentToPolygon( *s_cornerBuffer,
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wxPoint( x0, y0), wxPoint( xf, yf ),
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s_textCircle2SegmentCount, s_textWidth );
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}
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void TEXTE_PCB::TransformShapeWithClearanceToPolygonSet(
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CPOLYGONS_LIST& aCornerBuffer,
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int aClearanceValue,
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int aCircleToSegmentsCount,
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double aCorrectionFactor ) const
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{
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wxSize size = GetSize();
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if( IsMirrored() )
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NEGATE( size.x );
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s_cornerBuffer = &aCornerBuffer;
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s_textWidth = GetThickness() + ( 2 * aClearanceValue );
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s_textCircle2SegmentCount = aCircleToSegmentsCount;
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EDA_COLOR_T color = BLACK; // not actually used, but needed by DrawGraphicText
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if( IsMultilineAllowed() )
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{
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wxPoint pos = GetTextPosition();
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wxArrayString* list = wxStringSplit( GetText(), '\n' );
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wxPoint offset;
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offset.y = GetInterline();
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RotatePoint( &offset, GetOrientation() );
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for( unsigned i = 0; i<list->Count(); i++ )
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{
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wxString txt = list->Item( i );
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DrawGraphicText( NULL, NULL, pos, color,
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txt, GetOrientation(), size,
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GetHorizJustify(), GetVertJustify(),
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GetThickness(), IsItalic(),
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true, addTextSegmToPoly );
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pos += offset;
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}
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delete list;
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}
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else
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{
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DrawGraphicText( NULL, NULL, GetTextPosition(), (EDA_COLOR_T) color,
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GetText(), GetOrientation(), size,
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GetHorizJustify(), GetVertJustify(),
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GetThickness(), IsItalic(),
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true, addTextSegmToPoly );
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}
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}
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/**
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* Function TransformShapeWithClearanceToPolygon
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* Convert the track shape to a closed polygon
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* Used in filling zones calculations
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* Circles and arcs are approximated by segments
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* @param aCornerBuffer = a buffer to store the polygon
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* @param aClearanceValue = the clearance around the pad
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* @param aCircleToSegmentsCount = the number of segments to approximate a circle
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* @param aCorrectionFactor = the correction to apply to circles radius to keep
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* clearance when the circle is approxiamted by segment bigger or equal
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* to the real clearance value (usually near from 1.0)
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*/
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void DRAWSEGMENT::TransformShapeWithClearanceToPolygon( CPOLYGONS_LIST& aCornerBuffer,
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int aClearanceValue,
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int aCircleToSegmentsCount,
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double aCorrectionFactor ) const
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{
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switch( m_Shape )
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{
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case S_CIRCLE:
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TransformRingToPolygon( aCornerBuffer, GetCenter(), GetRadius(),
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aCircleToSegmentsCount,
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m_Width + (2 * aClearanceValue) ) ;
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break;
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case S_ARC:
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TransformArcToPolygon( aCornerBuffer, GetCenter(),
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GetArcStart(), m_Angle,
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aCircleToSegmentsCount,
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m_Width + (2 * aClearanceValue) );
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break;
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default:
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TransformRoundedEndsSegmentToPolygon( aCornerBuffer, m_Start, m_End,
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aCircleToSegmentsCount,
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m_Width + (2 * aClearanceValue) );
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break;
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}
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}
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/**
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* Function TransformShapeWithClearanceToPolygon
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* Convert the track shape to a closed polygon
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* Used in filling zones calculations
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* Circles (vias) and arcs (ends of tracks) are approximated by segments
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* @param aCornerBuffer = a buffer to store the polygon
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* @param aClearanceValue = the clearance around the pad
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* @param aCircleToSegmentsCount = the number of segments to approximate a circle
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* @param aCorrectionFactor = the correction to apply to circles radius to keep
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* clearance when the circle is approximated by segment bigger or equal
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* to the real clearance value (usually near from 1.0)
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*/
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void TRACK:: TransformShapeWithClearanceToPolygon( CPOLYGONS_LIST& aCornerBuffer,
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int aClearanceValue,
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int aCircleToSegmentsCount,
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double aCorrectionFactor ) const
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{
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switch( Type() )
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{
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case PCB_VIA_T:
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{
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int radius = (m_Width / 2) + aClearanceValue;
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radius = KiROUND( radius * aCorrectionFactor );
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TransformCircleToPolygon( aCornerBuffer, m_Start, radius, aCircleToSegmentsCount );
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}
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break;
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default:
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TransformRoundedEndsSegmentToPolygon( aCornerBuffer,
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m_Start, m_End,
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aCircleToSegmentsCount,
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m_Width + ( 2 * aClearanceValue) );
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break;
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}
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}
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/* Function TransformShapeWithClearanceToPolygon
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* Convert the pad shape to a closed polygon
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* Used in filling zones calculations and 3D view generation
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* Circles and arcs are approximated by segments
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* aCornerBuffer = a CPOLYGONS_LIST to store the polygon corners
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* aClearanceValue = the clearance around the pad
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* aCircleToSegmentsCount = the number of segments to approximate a circle
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* aCorrectionFactor = the correction to apply to circles radius to keep
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* clearance when the circle is approximated by segment bigger or equal
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* to the real clearance value (usually near from 1.0)
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*/
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void D_PAD:: TransformShapeWithClearanceToPolygon( CPOLYGONS_LIST& aCornerBuffer,
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int aClearanceValue,
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int aCircleToSegmentsCount,
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double aCorrectionFactor ) const
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{
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wxPoint corner_position;
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double angle;
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int dx = (m_Size.x / 2) + aClearanceValue;
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int dy = (m_Size.y / 2) + aClearanceValue;
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double delta = 3600.0 / aCircleToSegmentsCount; // rot angle in 0.1 degree
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wxPoint PadShapePos = ReturnShapePos(); /* Note: for pad having a shape offset,
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* the pad position is NOT the shape position */
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wxSize psize = m_Size; /* pad size unsed in RECT and TRAPEZOIDAL pads
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* trapezoidal pads are considered as rect
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* pad shape having they boudary box size */
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switch( m_PadShape )
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{
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case PAD_CIRCLE:
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dx = KiROUND( dx * aCorrectionFactor );
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TransformCircleToPolygon( aCornerBuffer, PadShapePos, dx,
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aCircleToSegmentsCount );
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break;
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case PAD_OVAL:
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// An oval pad has the same shape as a segment with rounded ends
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angle = m_Orient;
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{
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int width;
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wxPoint shape_offset;
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if( dy > dx ) // Oval pad X/Y ratio for choosing translation axis
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{
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dy = KiROUND( dy * aCorrectionFactor );
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shape_offset.y = dy - dx;
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width = dx * 2;
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}
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else //if( dy <= dx )
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{
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dx = KiROUND( dx * aCorrectionFactor );
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shape_offset.x = dy - dx;
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width = dy * 2;
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}
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RotatePoint( &shape_offset, angle );
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wxPoint start = PadShapePos - shape_offset;
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wxPoint end = PadShapePos + shape_offset;
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TransformRoundedEndsSegmentToPolygon( aCornerBuffer, start, end,
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aCircleToSegmentsCount, width );
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}
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break;
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default:
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case PAD_TRAPEZOID:
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psize.x += std::abs( m_DeltaSize.y );
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psize.y += std::abs( m_DeltaSize.x );
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// fall through
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case PAD_RECT:
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// Easy implementation for rectangular cutouts with rounded corners
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angle = m_Orient;
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// Corner rounding radius
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int rounding_radius = KiROUND( aClearanceValue * aCorrectionFactor );
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double angle_pg; // Polygon increment angle
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for( int i = 0; i < aCircleToSegmentsCount / 4 + 1; i++ )
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{
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corner_position = wxPoint( 0, -rounding_radius );
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RotatePoint( &corner_position, (1800.0 / aCircleToSegmentsCount) );
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// Start at half increment offset
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angle_pg = i * delta;
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RotatePoint( &corner_position, angle_pg );
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// Rounding vector rotation
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corner_position -= psize / 2; // Rounding vector + Pad corner offset
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RotatePoint( &corner_position, angle );
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// Rotate according to module orientation
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corner_position += PadShapePos; // Shift origin to position
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CPolyPt polypoint( corner_position.x, corner_position.y );
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aCornerBuffer.Append( polypoint );
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}
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for( int i = 0; i < aCircleToSegmentsCount / 4 + 1; i++ )
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{
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corner_position = wxPoint( -rounding_radius, 0 );
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RotatePoint( &corner_position, (1800.0 / aCircleToSegmentsCount) );
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angle_pg = i * delta;
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RotatePoint( &corner_position, angle_pg );
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corner_position -= wxPoint( psize.x / 2, -psize.y / 2 );
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RotatePoint( &corner_position, angle );
|
|
corner_position += PadShapePos;
|
|
CPolyPt polypoint( corner_position.x, corner_position.y );
|
|
aCornerBuffer.Append( polypoint );
|
|
}
|
|
|
|
for( int i = 0; i < aCircleToSegmentsCount / 4 + 1; i++ )
|
|
{
|
|
corner_position = wxPoint( 0, rounding_radius );
|
|
RotatePoint( &corner_position, (1800.0 / aCircleToSegmentsCount) );
|
|
angle_pg = i * delta;
|
|
RotatePoint( &corner_position, angle_pg );
|
|
corner_position += psize / 2;
|
|
RotatePoint( &corner_position, angle );
|
|
corner_position += PadShapePos;
|
|
CPolyPt polypoint( corner_position.x, corner_position.y );
|
|
aCornerBuffer.Append( polypoint );
|
|
}
|
|
|
|
for( int i = 0; i < aCircleToSegmentsCount / 4 + 1; i++ )
|
|
{
|
|
corner_position = wxPoint( rounding_radius, 0 );
|
|
RotatePoint( &corner_position, (1800.0 / aCircleToSegmentsCount) );
|
|
angle_pg = i * delta;
|
|
RotatePoint( &corner_position, angle_pg );
|
|
corner_position -= wxPoint( -psize.x / 2, psize.y / 2 );
|
|
RotatePoint( &corner_position, angle );
|
|
corner_position += PadShapePos;
|
|
CPolyPt polypoint( corner_position.x, corner_position.y );
|
|
aCornerBuffer.Append( polypoint );
|
|
}
|
|
|
|
aCornerBuffer.CloseLastContour();
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Function BuildPadShapePolygon
|
|
* Build the Corner list of the polygonal shape,
|
|
* depending on shape, extra size (clearance ...) pad and orientation
|
|
* Note: for Round and oval pads this function is equivalent to
|
|
* TransformShapeWithClearanceToPolygon, but not for other shapes
|
|
*/
|
|
void D_PAD::BuildPadShapePolygon( CPOLYGONS_LIST& aCornerBuffer,
|
|
wxSize aInflateValue, int aSegmentsPerCircle,
|
|
double aCorrectionFactor ) const
|
|
{
|
|
wxPoint corners[4];
|
|
wxPoint PadShapePos = ReturnShapePos(); /* Note: for pad having a shape offset,
|
|
* the pad position is NOT the shape position */
|
|
switch( m_PadShape )
|
|
{
|
|
case PAD_CIRCLE:
|
|
case PAD_OVAL:
|
|
TransformShapeWithClearanceToPolygon( aCornerBuffer, aInflateValue.x,
|
|
aSegmentsPerCircle, aCorrectionFactor );
|
|
break;
|
|
|
|
default:
|
|
case PAD_TRAPEZOID:
|
|
case PAD_RECT:
|
|
BuildPadPolygon( corners, aInflateValue, m_Orient );
|
|
for( int ii = 0; ii < 4; ii++ )
|
|
{
|
|
corners[ii] += PadShapePos; // Shift origin to position
|
|
CPolyPt polypoint( corners[ii].x, corners[ii].y );
|
|
aCornerBuffer.Append( polypoint );
|
|
}
|
|
|
|
aCornerBuffer.CloseLastContour();
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Function BuildPadDrillShapePolygon
|
|
* Build the Corner list of the polygonal drill shape,
|
|
* depending on shape pad hole and orientation
|
|
* return false if the pad has no hole, true otherwise
|
|
*/
|
|
bool D_PAD::BuildPadDrillShapePolygon( CPOLYGONS_LIST& aCornerBuffer,
|
|
int aInflateValue, int aSegmentsPerCircle ) const
|
|
{
|
|
wxSize drillsize = GetDrillSize();
|
|
bool hasHole = drillsize.x && drillsize.y;
|
|
|
|
if( ! hasHole )
|
|
return false;
|
|
|
|
drillsize.x += aInflateValue;
|
|
drillsize.y += aInflateValue;
|
|
|
|
if( drillsize.x == drillsize.y ) // usual round hole
|
|
{
|
|
TransformCircleToPolygon( aCornerBuffer, GetPosition(),
|
|
drillsize.x /2, aSegmentsPerCircle );
|
|
}
|
|
else // Oblong hole
|
|
{
|
|
wxPoint ends_offset;
|
|
int width;
|
|
|
|
if( drillsize.x > drillsize.y ) // Horizontal oval
|
|
{
|
|
ends_offset.x = ( drillsize.x - drillsize.y ) / 2;
|
|
width = drillsize.y;
|
|
}
|
|
else // Vertical oval
|
|
{
|
|
ends_offset.y = ( drillsize.y - drillsize.x ) / 2;
|
|
width = drillsize.x;
|
|
}
|
|
|
|
RotatePoint( &ends_offset, GetOrientation() );
|
|
|
|
wxPoint start = GetPosition() + ends_offset;
|
|
wxPoint end = GetPosition() - ends_offset;
|
|
|
|
// Prepare the shape creation
|
|
TransformRoundedEndsSegmentToPolygon( aCornerBuffer, start, end,
|
|
aSegmentsPerCircle, width );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Function CreateThermalReliefPadPolygon
|
|
* Add holes around a pad to create a thermal relief
|
|
* copper thickness is min (dx/2, aCopperWitdh) or min (dy/2, aCopperWitdh)
|
|
* @param aCornerBuffer = a buffer to store the polygon
|
|
* @param aPad = the current pad used to create the thermal shape
|
|
* @param aThermalGap = gap in thermal shape
|
|
* @param aCopperThickness = stubs thickness in thermal shape
|
|
* @param aMinThicknessValue = min copper thickness allowed
|
|
* @param aCircleToSegmentsCount = the number of segments to approximate a circle
|
|
* @param aCorrectionFactor = the correction to apply to circles radius to keep
|
|
* @param aThermalRot = for rond pads the rotation of thermal stubs (450 usually for 45 deg.)
|
|
*/
|
|
|
|
/* thermal reliefs are created as 4 polygons.
|
|
* each corner of a polygon if calculated for a pad at position 0, 0, orient 0,
|
|
* and then moved and rotated acroding to the pad position and orientation
|
|
*/
|
|
|
|
/*
|
|
* Note 1: polygons are drawm using outlines witk a thickness = aMinThicknessValue
|
|
* so shapes must take in account this outline thickness
|
|
*
|
|
* Note 2:
|
|
* Trapezoidal pads are not considered here because they are very special case
|
|
* and are used in microwave applications and they *DO NOT* have a thermal relief that
|
|
* change the shape by creating stubs and destroy their properties.
|
|
*/
|
|
void CreateThermalReliefPadPolygon( CPOLYGONS_LIST& aCornerBuffer,
|
|
D_PAD& aPad,
|
|
int aThermalGap,
|
|
int aCopperThickness,
|
|
int aMinThicknessValue,
|
|
int aCircleToSegmentsCount,
|
|
double aCorrectionFactor,
|
|
double aThermalRot )
|
|
{
|
|
wxPoint corner, corner_end;
|
|
wxPoint PadShapePos = aPad.ReturnShapePos(); /* Note: for pad having a shape offset,
|
|
* the pad position is NOT the shape position */
|
|
wxSize copper_thickness;
|
|
|
|
int dx = aPad.GetSize().x / 2;
|
|
int dy = aPad.GetSize().y / 2;
|
|
|
|
double delta = 3600.0 / aCircleToSegmentsCount; // rot angle in 0.1 degree
|
|
|
|
/* Keep in account the polygon outline thickness
|
|
* aThermalGap must be increased by aMinThicknessValue/2 because drawing external outline
|
|
* with a thickness of aMinThicknessValue will reduce gap by aMinThicknessValue/2
|
|
*/
|
|
aThermalGap += aMinThicknessValue / 2;
|
|
|
|
/* Keep in account the polygon outline thickness
|
|
* copper_thickness must be decreased by aMinThicknessValue because drawing outlines
|
|
* with a thickness of aMinThicknessValue will increase real thickness by aMinThicknessValue
|
|
*/
|
|
aCopperThickness -= aMinThicknessValue;
|
|
|
|
if( aCopperThickness < 0 )
|
|
aCopperThickness = 0;
|
|
|
|
copper_thickness.x = std::min( dx, aCopperThickness );
|
|
copper_thickness.y = std::min( dy, aCopperThickness );
|
|
|
|
switch( aPad.GetShape() )
|
|
{
|
|
case PAD_CIRCLE: // Add 4 similar holes
|
|
{
|
|
/* we create 4 copper holes and put them in position 1, 2, 3 and 4
|
|
* here is the area of the rectangular pad + its thermal gap
|
|
* the 4 copper holes remove the copper in order to create the thermal gap
|
|
* 4 ------ 1
|
|
* | |
|
|
* | |
|
|
* | |
|
|
* | |
|
|
* 3 ------ 2
|
|
* holes 2, 3, 4 are the same as hole 1, rotated 90, 180, 270 deg
|
|
*/
|
|
|
|
// Build the hole pattern, for the hole in the X >0, Y > 0 plane:
|
|
// The pattern roughtly is a 90 deg arc pie
|
|
std::vector <wxPoint> corners_buffer;
|
|
|
|
// Radius of outer arcs of the shape corrected for arc approximation by lines
|
|
int outer_radius = KiROUND( (dx + aThermalGap) * aCorrectionFactor );
|
|
|
|
// Crosspoint of thermal spoke sides, the first point of polygon buffer
|
|
corners_buffer.push_back( wxPoint( copper_thickness.x / 2, copper_thickness.y / 2 ) );
|
|
|
|
// Add an intermediate point on spoke sides, to allow a > 90 deg angle between side
|
|
// and first seg of arc approx
|
|
corner.x = copper_thickness.x / 2;
|
|
int y = outer_radius - (aThermalGap / 4);
|
|
corner.y = KiROUND( sqrt( ( (double) y * y - (double) corner.x * corner.x ) ) );
|
|
|
|
if( aThermalRot != 0 )
|
|
corners_buffer.push_back( corner );
|
|
|
|
// calculate the starting point of the outter arc
|
|
corner.x = copper_thickness.x / 2;
|
|
|
|
corner.y = KiROUND( sqrt( ( (double) outer_radius * outer_radius ) -
|
|
( (double) corner.x * corner.x ) ) );
|
|
RotatePoint( &corner, 90 ); // 9 degrees is the spoke fillet size
|
|
|
|
// calculate the ending point of the outter arc
|
|
corner_end.x = corner.y;
|
|
corner_end.y = corner.x;
|
|
|
|
// calculate intermediate points (y coordinate from corner.y to corner_end.y
|
|
while( (corner.y > corner_end.y) && (corner.x < corner_end.x) )
|
|
{
|
|
corners_buffer.push_back( corner );
|
|
RotatePoint( &corner, delta );
|
|
}
|
|
|
|
corners_buffer.push_back( corner_end );
|
|
|
|
/* add an intermediate point, to avoid angles < 90 deg between last arc approx line
|
|
* and radius line
|
|
*/
|
|
corner.x = corners_buffer[1].y;
|
|
corner.y = corners_buffer[1].x;
|
|
corners_buffer.push_back( corner );
|
|
|
|
// Now, add the 4 holes ( each is the pattern, rotated by 0, 90, 180 and 270 deg
|
|
// aThermalRot = 450 (45.0 degrees orientation) work fine.
|
|
double angle_pad = aPad.GetOrientation(); // Pad orientation
|
|
double th_angle = aThermalRot;
|
|
|
|
for( unsigned ihole = 0; ihole < 4; ihole++ )
|
|
{
|
|
for( unsigned ii = 0; ii < corners_buffer.size(); ii++ )
|
|
{
|
|
corner = corners_buffer[ii];
|
|
RotatePoint( &corner, th_angle + angle_pad ); // Rotate by segment angle and pad orientation
|
|
corner += PadShapePos;
|
|
aCornerBuffer.Append( CPolyPt( corner.x, corner.y ) );
|
|
}
|
|
|
|
aCornerBuffer.CloseLastContour();
|
|
th_angle += 900; // Note: th_angle in in 0.1 deg.
|
|
}
|
|
}
|
|
break;
|
|
|
|
case PAD_OVAL:
|
|
{
|
|
// Oval pad support along the lines of round and rectangular pads
|
|
std::vector <wxPoint> corners_buffer; // Polygon buffer as vector
|
|
|
|
int dx = (aPad.GetSize().x / 2) + aThermalGap; // Cutout radius x
|
|
int dy = (aPad.GetSize().y / 2) + aThermalGap; // Cutout radius y
|
|
|
|
wxPoint shape_offset;
|
|
|
|
// We want to calculate an oval shape with dx > dy.
|
|
// if this is not the case, exchange dx and dy, and rotate the shape 90 deg.
|
|
int supp_angle = 0;
|
|
|
|
if( dx < dy )
|
|
{
|
|
EXCHG( dx, dy );
|
|
supp_angle = 900;
|
|
EXCHG( copper_thickness.x, copper_thickness.y );
|
|
}
|
|
|
|
int deltasize = dx - dy; // = distance between shape position and the 2 demi-circle ends centre
|
|
// here we have dx > dy
|
|
// Radius of outer arcs of the shape:
|
|
int outer_radius = dy; // The radius of the outer arc is radius end + aThermalGap
|
|
|
|
// Some coordinate fiddling, depending on the shape offset direction
|
|
shape_offset = wxPoint( deltasize, 0 );
|
|
|
|
// Crosspoint of thermal spoke sides, the first point of polygon buffer
|
|
corner.x = copper_thickness.x / 2;
|
|
corner.y = copper_thickness.y / 2;
|
|
corners_buffer.push_back( corner );
|
|
|
|
// Arc start point calculation, the intersecting point of cutout arc and thermal spoke edge
|
|
// If copper thickness is more than shape offset, we need to calculate arc intercept point.
|
|
if( copper_thickness.x > deltasize )
|
|
{
|
|
corner.x = copper_thickness.x / 2;
|
|
corner.y = KiROUND( sqrt( ( (double) outer_radius * outer_radius ) -
|
|
( (double) ( corner.x - delta ) * ( corner.x - deltasize ) ) ) );
|
|
corner.x -= deltasize;
|
|
|
|
/* creates an intermediate point, to have a > 90 deg angle
|
|
* between the side and the first segment of arc approximation
|
|
*/
|
|
wxPoint intpoint = corner;
|
|
intpoint.y -= aThermalGap / 4;
|
|
corners_buffer.push_back( intpoint + shape_offset );
|
|
RotatePoint( &corner, 90 ); // 9 degrees of thermal fillet
|
|
}
|
|
else
|
|
{
|
|
corner.x = copper_thickness.x / 2;
|
|
corner.y = outer_radius;
|
|
corners_buffer.push_back( corner );
|
|
}
|
|
|
|
// Add an intermediate point on spoke sides, to allow a > 90 deg angle between side
|
|
// and first seg of arc approx
|
|
wxPoint last_corner;
|
|
last_corner.y = copper_thickness.y / 2;
|
|
int px = outer_radius - (aThermalGap / 4);
|
|
last_corner.x =
|
|
KiROUND( sqrt( ( ( (double) px * px ) - (double) last_corner.y * last_corner.y ) ) );
|
|
|
|
// Arc stop point calculation, the intersecting point of cutout arc and thermal spoke edge
|
|
corner_end.y = copper_thickness.y / 2;
|
|
corner_end.x =
|
|
KiROUND( sqrt( ( (double) outer_radius *
|
|
outer_radius ) - ( (double) corner_end.y * corner_end.y ) ) );
|
|
RotatePoint( &corner_end, -90 ); // 9 degrees of thermal fillet
|
|
|
|
// calculate intermediate arc points till limit is reached
|
|
while( (corner.y > corner_end.y) && (corner.x < corner_end.x) )
|
|
{
|
|
corners_buffer.push_back( corner + shape_offset );
|
|
RotatePoint( &corner, delta );
|
|
}
|
|
|
|
//corners_buffer.push_back(corner + shape_offset); // TODO: about one mil geometry error forms somewhere.
|
|
corners_buffer.push_back( corner_end + shape_offset );
|
|
corners_buffer.push_back( last_corner + shape_offset ); // Enabling the line above shows intersection point.
|
|
|
|
/* Create 2 holes, rotated by pad rotation.
|
|
*/
|
|
double angle = aPad.GetOrientation() + supp_angle;
|
|
|
|
for( int irect = 0; irect < 2; irect++ )
|
|
{
|
|
for( unsigned ic = 0; ic < corners_buffer.size(); ic++ )
|
|
{
|
|
wxPoint cpos = corners_buffer[ic];
|
|
RotatePoint( &cpos, angle );
|
|
cpos += PadShapePos;
|
|
aCornerBuffer.Append( CPolyPt( cpos.x, cpos.y ) );
|
|
}
|
|
|
|
aCornerBuffer.CloseLastContour();
|
|
angle = AddAngles( angle, 1800 ); // this is calculate hole 3
|
|
}
|
|
|
|
// Create holes, that are the mirrored from the previous holes
|
|
for( unsigned ic = 0; ic < corners_buffer.size(); ic++ )
|
|
{
|
|
wxPoint swap = corners_buffer[ic];
|
|
swap.x = -swap.x;
|
|
corners_buffer[ic] = swap;
|
|
}
|
|
|
|
// Now add corner 4 and 2 (2 is the corner 4 rotated by 180 deg
|
|
angle = aPad.GetOrientation() + supp_angle;
|
|
|
|
for( int irect = 0; irect < 2; irect++ )
|
|
{
|
|
for( unsigned ic = 0; ic < corners_buffer.size(); ic++ )
|
|
{
|
|
wxPoint cpos = corners_buffer[ic];
|
|
RotatePoint( &cpos, angle );
|
|
cpos += PadShapePos;
|
|
aCornerBuffer.Append( CPolyPt( cpos.x, cpos.y ) );
|
|
}
|
|
|
|
aCornerBuffer.CloseLastContour();
|
|
angle = AddAngles( angle, 1800 );
|
|
}
|
|
}
|
|
break;
|
|
|
|
case PAD_RECT: // draw 4 Holes
|
|
{
|
|
/* we create 4 copper holes and put them in position 1, 2, 3 and 4
|
|
* here is the area of the rectangular pad + its thermal gap
|
|
* the 4 copper holes remove the copper in order to create the thermal gap
|
|
* 4 ------ 1
|
|
* | |
|
|
* | |
|
|
* | |
|
|
* | |
|
|
* 3 ------ 2
|
|
* hole 3 is the same as hole 1, rotated 180 deg
|
|
* hole 4 is the same as hole 2, rotated 180 deg and is the same as hole 1, mirrored
|
|
*/
|
|
|
|
// First, create a rectangular hole for position 1 :
|
|
// 2 ------- 3
|
|
// | |
|
|
// | |
|
|
// | |
|
|
// 1 -------4
|
|
|
|
// Modified rectangles with one corner rounded. TODO: merging with oval thermals
|
|
// and possibly round too.
|
|
|
|
std::vector <wxPoint> corners_buffer; // Polygon buffer as vector
|
|
|
|
int dx = (aPad.GetSize().x / 2) + aThermalGap; // Cutout radius x
|
|
int dy = (aPad.GetSize().y / 2) + aThermalGap; // Cutout radius y
|
|
|
|
// The first point of polygon buffer is left lower corner, second the crosspoint of
|
|
// thermal spoke sides, the third is upper right corner and the rest are rounding
|
|
// vertices going anticlockwise. Note the inveted Y-axis in CG.
|
|
corners_buffer.push_back( wxPoint( -dx, -(aThermalGap / 4 + copper_thickness.y / 2) ) ); // Adds small miters to zone
|
|
corners_buffer.push_back( wxPoint( -(dx - aThermalGap / 4), -copper_thickness.y / 2 ) ); // fill and spoke corner
|
|
corners_buffer.push_back( wxPoint( -copper_thickness.x / 2, -copper_thickness.y / 2 ) );
|
|
corners_buffer.push_back( wxPoint( -copper_thickness.x / 2, -(dy - aThermalGap / 4) ) );
|
|
corners_buffer.push_back( wxPoint( -(aThermalGap / 4 + copper_thickness.x / 2), -dy ) );
|
|
|
|
double angle = aPad.GetOrientation();
|
|
int rounding_radius = KiROUND( aThermalGap * aCorrectionFactor ); // Corner rounding radius
|
|
double angle_pg; // Polygon increment angle
|
|
|
|
for( int i = 0; i < aCircleToSegmentsCount / 4 + 1; i++ )
|
|
{
|
|
wxPoint corner_position = wxPoint( 0, -rounding_radius );
|
|
|
|
// Start at half increment offset
|
|
RotatePoint( &corner_position, 1800.0 / aCircleToSegmentsCount );
|
|
angle_pg = i * delta;
|
|
|
|
RotatePoint( &corner_position, angle_pg ); // Rounding vector rotation
|
|
corner_position -= aPad.GetSize() / 2; // Rounding vector + Pad corner offset
|
|
|
|
corners_buffer.push_back( wxPoint( corner_position.x, corner_position.y ) );
|
|
}
|
|
|
|
for( int irect = 0; irect < 2; irect++ )
|
|
{
|
|
for( unsigned ic = 0; ic < corners_buffer.size(); ic++ )
|
|
{
|
|
wxPoint cpos = corners_buffer[ic];
|
|
RotatePoint( &cpos, angle ); // Rotate according to module orientation
|
|
cpos += PadShapePos; // Shift origin to position
|
|
aCornerBuffer.Append( CPolyPt( cpos.x, cpos.y ) );
|
|
}
|
|
|
|
aCornerBuffer.CloseLastContour();
|
|
angle = AddAngles( angle, 1800 ); // this is calculate hole 3
|
|
}
|
|
|
|
// Create holes, that are the mirrored from the previous holes
|
|
for( unsigned ic = 0; ic < corners_buffer.size(); ic++ )
|
|
{
|
|
wxPoint swap = corners_buffer[ic];
|
|
swap.x = -swap.x;
|
|
corners_buffer[ic] = swap;
|
|
}
|
|
|
|
// Now add corner 4 and 2 (2 is the corner 4 rotated by 180 deg
|
|
for( int irect = 0; irect < 2; irect++ )
|
|
{
|
|
for( unsigned ic = 0; ic < corners_buffer.size(); ic++ )
|
|
{
|
|
wxPoint cpos = corners_buffer[ic];
|
|
RotatePoint( &cpos, angle );
|
|
cpos += PadShapePos;
|
|
aCornerBuffer.Append( CPolyPt( cpos.x, cpos.y ) );
|
|
}
|
|
|
|
aCornerBuffer.CloseLastContour();
|
|
angle = AddAngles( angle, 1800 );
|
|
}
|
|
|
|
}
|
|
break;
|
|
|
|
default:
|
|
;
|
|
}
|
|
}
|