763 lines
31 KiB
C++
763 lines
31 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 <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 <convert_basic_shapes_to_polygon.h>
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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 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 TEXTE_PCB::TransformShapeWithClearanceToPolygon( std::vector <CPolyPt>& aCornerBuffer,
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int aClearanceValue,
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int aCircleToSegmentsCount,
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double aCorrectionFactor )
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{
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if( GetLength() == 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.push_back( corners[ii] );
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}
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aCornerBuffer.back().end_contour = true;
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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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* param aAddClearance = true to add a clearance area to the polygon
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* false to create the outline polygon.
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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 ZONE_CONTAINER::TransformShapeWithClearanceToPolygon( std::vector <CPolyPt>& aCornerBuffer,
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int aClearanceValue,
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int aCircleToSegmentsCount,
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double aCorrectionFactor,
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bool aAddClearance )
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{
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/* Creates the main polygon (i.e. the filled area using only one outline)
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* and reserve a clearance margin around the outlines and holes
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*/
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std::vector <CPolyPt> zoneOutines;
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BuildFilledPolysListData( NULL, &zoneOutines );
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int clearance = 0;
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if( aAddClearance )
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{
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GetClearance();
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if( aClearanceValue > clearance )
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clearance = aClearanceValue;
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}
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// Calculate the polygon with clearance and holes
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// holes are linked to the main outline, so only one polygon should be created.
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KI_POLYGON_SET polyset_zone_solid_areas;
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std::vector<KI_POLY_POINT> cornerslist;
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unsigned ic = 0;
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unsigned corners_count = zoneOutines.size();
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while( ic < corners_count )
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{
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cornerslist.clear();
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KI_POLYGON poly;
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{
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for( ; ic < corners_count; ic++ )
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{
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CPolyPt* corner = &zoneOutines[ic];
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cornerslist.push_back( KI_POLY_POINT( corner->x, corner->y ) );
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if( corner->end_contour )
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{
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ic++;
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break;
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}
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}
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bpl::set_points( poly, cornerslist.begin(), cornerslist.end() );
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polyset_zone_solid_areas.push_back( poly );
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}
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}
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polyset_zone_solid_areas += clearance;
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// Put the resultng polygon in buffer
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for( unsigned ii = 0; ii < polyset_zone_solid_areas.size(); ii++ )
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{
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KI_POLYGON& poly = polyset_zone_solid_areas[ii];
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CPolyPt corner( 0, 0, false );
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for( unsigned jj = 0; jj < poly.size(); jj++ )
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{
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KI_POLY_POINT point = *(poly.begin() + jj);
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corner.x = point.x();
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corner.y = point.y();
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corner.end_contour = false;
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aCornerBuffer.push_back( corner );
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}
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corner.end_contour = true;
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aCornerBuffer.pop_back();
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aCornerBuffer.push_back( corner );
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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( std::vector <CPolyPt>& aCornerBuffer,
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int aClearanceValue,
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int aCircleToSegmentsCount,
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double aCorrectionFactor )
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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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TransformArcToPolygon( aCornerBuffer, m_Start, // Circle centre
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m_End, 3600,
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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, m_Start,
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m_End, 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 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 TRACK:: TransformShapeWithClearanceToPolygon( std:: vector < CPolyPt>& aCornerBuffer,
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int aClearanceValue,
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int aCircleToSegmentsCount,
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double aCorrectionFactor )
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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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/**
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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
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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 D_PAD:: TransformShapeWithClearanceToPolygon( std:: vector < CPolyPt>& aCornerBuffer,
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int aClearanceValue,
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int aCircleToSegmentsCount,
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double aCorrectionFactor )
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{
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wxPoint corner_position;
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int 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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int delta = 3600 / 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 = (int) ( 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 = (int) ( 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 = (int) ( 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 = (int) ( aClearanceValue * aCorrectionFactor );
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int 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 / 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.push_back( 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 / 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 );
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corner_position += PadShapePos;
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CPolyPt polypoint( corner_position.x, corner_position.y );
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aCornerBuffer.push_back( 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( 0, rounding_radius );
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RotatePoint( &corner_position, (1800 / aCircleToSegmentsCount) );
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angle_pg = i * delta;
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RotatePoint( &corner_position, angle_pg );
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corner_position += psize / 2;
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RotatePoint( &corner_position, angle );
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corner_position += PadShapePos;
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CPolyPt polypoint( corner_position.x, corner_position.y );
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aCornerBuffer.push_back( 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 / 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 );
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corner_position += PadShapePos;
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CPolyPt polypoint( corner_position.x, corner_position.y );
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aCornerBuffer.push_back( polypoint );
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}
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aCornerBuffer.back().end_contour = true;
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break;
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}
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}
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/**
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* Function CreateThermalReliefPadPolygon
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* Add holes around a pad to create a thermal relief
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* copper thickness is min (dx/2, aCopperWitdh) or min (dy/2, aCopperWitdh)
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* @param aCornerBuffer = a buffer to store the polygon
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* @param aPad = the current pad used to create the thermal shape
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* @param aThermalGap = gap in thermal shape
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* @param aCopperThickness = stubs thickness in thermal shape
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* @param aMinThicknessValue = min copper thickness allowed
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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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* @param aThermalRot = for rond pads the rotation of thermal stubs (450 usually for 45 deg.)
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*/
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/* thermal reliefs are created as 4 polygons.
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* each corner of a polygon if calculated for a pad at position 0, 0, orient 0,
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* and then moved and rotated acroding to the pad position and orientation
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*/
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/*
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* Note 1: polygons are drawm using outlines witk a thickness = aMinThicknessValue
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* so shapes must take in account this outline thickness
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*
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* Note 2:
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* Trapezoidal pads are not considered here because they are very special case
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* and are used in microwave applications and they *DO NOT* have a thermal relief that
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* change the shape by creating stubs and destroy their properties.
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*/
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void CreateThermalReliefPadPolygon( std::vector<CPolyPt>& aCornerBuffer,
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D_PAD& aPad,
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int aThermalGap,
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int aCopperThickness,
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int aMinThicknessValue,
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int aCircleToSegmentsCount,
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double aCorrectionFactor,
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int aThermalRot )
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{
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wxPoint corner, corner_end;
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wxPoint PadShapePos = aPad.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 copper_thickness;
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int dx = aPad.GetSize().x / 2;
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int dy = aPad.GetSize().y / 2;
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int delta = 3600 / aCircleToSegmentsCount; // rot angle in 0.1 degree
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/* Keep in account the polygon outline thickness
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* aThermalGap must be increased by aMinThicknessValue/2 because drawing external outline
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* with a thickness of aMinThicknessValue will reduce gap by aMinThicknessValue/2
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*/
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aThermalGap += aMinThicknessValue / 2;
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/* Keep in account the polygon outline thickness
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* copper_thickness must be decreased by aMinThicknessValue because drawing outlines
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* with a thickness of aMinThicknessValue will increase real thickness by aMinThicknessValue
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*/
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aCopperThickness -= aMinThicknessValue;
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if( aCopperThickness < 0 )
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aCopperThickness = 0;
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copper_thickness.x = std::min( dx, aCopperThickness );
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copper_thickness.y = std::min( dy, aCopperThickness );
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switch( aPad.GetShape() )
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{
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case PAD_CIRCLE: // Add 4 similar holes
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{
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/* we create 4 copper holes and put them in position 1, 2, 3 and 4
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* here is the area of the rectangular pad + its thermal gap
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* the 4 copper holes remove the copper in order to create the thermal gap
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* 4 ------ 1
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* | |
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* | |
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* | |
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* | |
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* 3 ------ 2
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* holes 2, 3, 4 are the same as hole 1, rotated 90, 180, 270 deg
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*/
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// Build the hole pattern, for the hole in the X >0, Y > 0 plane:
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// The pattern roughtly is a 90 deg arc pie
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std::vector <wxPoint> corners_buffer;
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// Radius of outer arcs of the shape corrected for arc approximation by lines
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int outer_radius = (int) ( (dx + aThermalGap) * aCorrectionFactor );
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// Crosspoint of thermal spoke sides, the first point of polygon buffer
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corners_buffer.push_back( wxPoint( copper_thickness.x / 2, copper_thickness.y / 2 ) );
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// Add an intermediate point on spoke sides, to allow a > 90 deg angle between side
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// and first seg of arc approx
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corner.x = copper_thickness.x / 2;
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int y = outer_radius - (aThermalGap / 4);
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corner.y = (int) sqrt( ( ( (double) y * y ) - (double) corner.x * corner.x ) );
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if( aThermalRot != 0 )
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corners_buffer.push_back( corner );
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// calculate the starting point of the outter arc
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corner.x = copper_thickness.x / 2;
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double dtmp = sqrt( ( (double) outer_radius * outer_radius ) -
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( (double) corner.x * corner.x ) );
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corner.y = (int) dtmp;
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RotatePoint( &corner, 90 );
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// calculate the ending point of the outter arc
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corner_end.x = corner.y;
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corner_end.y = corner.x;
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// calculate intermediate points (y coordinate from corner.y to corner_end.y
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while( (corner.y > corner_end.y) && (corner.x < corner_end.x) )
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{
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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.
|
|
int angle_pad = aPad.GetOrientation(); // Pad orientation
|
|
int 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.push_back( CPolyPt( corner.x, corner.y ) );
|
|
}
|
|
|
|
aCornerBuffer.back().end_contour = true;
|
|
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 = (int) 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 );
|
|
}
|
|
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 =
|
|
(int) 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 =
|
|
(int) sqrt( ( (double) outer_radius *
|
|
outer_radius ) - ( (double) corner_end.y * corner_end.y ) );
|
|
RotatePoint( &corner_end, -90 );
|
|
|
|
// 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.
|
|
*/
|
|
int 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.push_back( CPolyPt( cpos.x, cpos.y ) );
|
|
}
|
|
|
|
aCornerBuffer.back().end_contour = true;
|
|
angle += 1800; // this is calculate hole 3
|
|
|
|
if( angle >= 3600 )
|
|
angle -= 3600;
|
|
}
|
|
|
|
// 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.push_back( CPolyPt( cpos.x, cpos.y ) );
|
|
}
|
|
|
|
aCornerBuffer.back().end_contour = true;
|
|
angle += 1800;
|
|
|
|
if( angle >= 3600 )
|
|
angle -= 3600;
|
|
}
|
|
}
|
|
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 ) );
|
|
|
|
int angle = aPad.GetOrientation();
|
|
int rounding_radius = (int) ( aThermalGap * aCorrectionFactor ); // Corner rounding radius
|
|
int 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 / 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.push_back( CPolyPt( cpos.x, cpos.y ) );
|
|
}
|
|
|
|
aCornerBuffer.back().end_contour = true;
|
|
angle += 1800; // this is calculate hole 3
|
|
|
|
if( angle >= 3600 )
|
|
angle -= 3600;
|
|
}
|
|
|
|
// 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.push_back( CPolyPt( cpos.x, cpos.y ) );
|
|
}
|
|
|
|
aCornerBuffer.back().end_contour = true;
|
|
angle += 1800;
|
|
|
|
if( angle >= 3600 )
|
|
angle -= 3600;
|
|
}
|
|
|
|
}
|
|
break;
|
|
|
|
default:
|
|
;
|
|
}
|
|
}
|