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Better handling of rounded pad shapes in GRID_HELPER

This commit is contained in:
Jon Evans 2020-09-28 23:59:44 -04:00
parent 30663c293c
commit 4bb3e9dd98
1 changed files with 103 additions and 13 deletions
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108
pcbnew/tools/grid_helper.cpp
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@ -32,13 +32,17 @@ using namespace std::placeholders;
#include <class_module.h>
#include <class_track.h>
#include <class_zone.h>
#include <tool/tool_manager.h>
#include <geometry/shape_circle.h>
#include <geometry/shape_line_chain.h>
#include <geometry/shape_rect.h>
#include <geometry/shape_segment.h>
#include <geometry/shape_simple.h>
#include <macros.h>
#include <math/util.h> // for KiROUND
#include <math/vector2d.h>
#include <painter.h>
#include <pcbnew_settings.h>
#include <tool/tool_manager.h>
#include <view/view.h>
#include <view/view_controls.h>
@ -401,22 +405,108 @@ void GRID_HELPER::computeAnchors( BOARD_ITEM* aItem, const VECTOR2I& aRefPos, bo
{
addAnchor( aPad->GetPosition(), CORNER | SNAPPABLE, aPad );
const std::shared_ptr<SHAPE_POLY_SET>& poly =
aPad->GetEffectivePolygon( aPad->GetLayer() );
const std::shared_ptr<SHAPE> eshape = aPad->GetEffectiveShape( aPad->GetLayer() );
if( poly->OutlineCount() )
wxASSERT( eshape->Type() == SH_COMPOUND );
const std::vector<SHAPE*> shapes =
static_cast<const SHAPE_COMPOUND*>( eshape.get() )->Shapes();
for( const SHAPE* shape : shapes )
{
const SHAPE_LINE_CHAIN& outline = poly->COutline( 0 );
switch( shape->Type() )
{
case SH_RECT:
{
const SHAPE_RECT* rect = static_cast<const SHAPE_RECT*>( shape );
SHAPE_LINE_CHAIN outline = rect->Outline();
for( int i = 0; i < outline.SegmentCount(); i++ )
{
const SEG& seg = outline.CSegment( i );
addAnchor( seg.A, OUTLINE | SNAPPABLE, aPad );
addAnchor( seg.Center(), OUTLINE | SNAPPABLE, aPad );
}
addAnchor( seg.A, CORNER | SNAPPABLE, aPad );
addAnchor( seg.Center(), CORNER | SNAPPABLE, aPad );
break;
}
if( i == outline.SegmentCount() - 1 )
addAnchor( seg.B, CORNER | SNAPPABLE, aPad );
case SH_SEGMENT:
{
const SHAPE_SEGMENT* segment = static_cast<const SHAPE_SEGMENT*>( shape );
int offset = segment->GetWidth() / 2;
SEG seg = segment->GetSeg();
VECTOR2I normal = ( seg.B - seg.A ).Resize( offset ).Rotate( -M_PI_2 );
/*
* TODO: This creates more snap points than necessary for rounded rect pads
* because they are built up of overlapping segments. We could fix this if
* desired by testing these to see if they are "inside" the pad.
*/
addAnchor( seg.A + normal, OUTLINE | SNAPPABLE, aPad );
addAnchor( seg.A - normal, OUTLINE | SNAPPABLE, aPad );
addAnchor( seg.B + normal, OUTLINE | SNAPPABLE, aPad );
addAnchor( seg.B - normal, OUTLINE | SNAPPABLE, aPad );
addAnchor( seg.Center() + normal, OUTLINE | SNAPPABLE, aPad );
addAnchor( seg.Center() - normal, OUTLINE | SNAPPABLE, aPad );
normal = normal.Rotate( M_PI_2 );
addAnchor( seg.A - normal, OUTLINE | SNAPPABLE, aPad );
addAnchor( seg.B + normal, OUTLINE | SNAPPABLE, aPad );
break;
}
case SH_CIRCLE:
{
const SHAPE_CIRCLE* circle = static_cast<const SHAPE_CIRCLE*>( shape );
int r = circle->GetRadius();
VECTOR2I start = circle->GetCenter();
addAnchor( start + VECTOR2I( -r, 0 ), OUTLINE | SNAPPABLE, aPad );
addAnchor( start + VECTOR2I( r, 0 ), OUTLINE | SNAPPABLE, aPad );
addAnchor( start + VECTOR2I( 0, -r ), OUTLINE | SNAPPABLE, aPad );
addAnchor( start + VECTOR2I( 0, r ), OUTLINE | SNAPPABLE, aPad );
break;
}
case SH_ARC:
{
const SHAPE_ARC* arc = static_cast<const SHAPE_ARC*>( shape );
addAnchor( arc->GetP0(), OUTLINE | SNAPPABLE, aPad );
addAnchor( arc->GetP1(), OUTLINE | SNAPPABLE, aPad );
addAnchor( arc->GetArcMid(), OUTLINE | SNAPPABLE, aPad );
break;
}
case SH_SIMPLE:
{
const SHAPE_SIMPLE* poly = static_cast<const SHAPE_SIMPLE*>( shape );
for( size_t i = 0; i < poly->GetSegmentCount(); i++ )
{
const SEG& seg = poly->GetSegment( i );
addAnchor( seg.A, OUTLINE | SNAPPABLE, aPad );
addAnchor( seg.Center(), OUTLINE | SNAPPABLE, aPad );
if( i == poly->GetSegmentCount() - 1 )
addAnchor( seg.B, OUTLINE | SNAPPABLE, aPad );
}
break;
}
case SH_POLY_SET:
case SH_LINE_CHAIN:
case SH_COMPOUND:
case SH_POLY_SET_TRIANGLE:
case SH_NULL:
default:
break;
}
}
};