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3D viewer: fix an issue with solder paste layer having negative clearance. 

The code tried to draw outlines with segments having a negative thickness.
It happens mainly on solder paste layers.

Fixes #4090
https://gitlab.com/kicad/code/kicad/issues/4090
This commit is contained in:
jean-pierre charras 2020-03-26 13:41:57 +01:00
parent 6e27904791
commit 04d6ea982d
2 changed files with 31 additions and 15 deletions
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44
3d-viewer/3d_canvas/create_3Dgraphic_brd_items.cpp
View File

@ -376,9 +376,22 @@ void EDA_3D_SETTINGS::createNewPadWithClearance( const D_PAD* aPad,
case PAD_SHAPE_RECT:
{
// see pcbnew/board_items_to_polygon_shape_transform.cpp
wxPoint corners[4];
aPad->BuildPadPolygon( corners, aClearanceValue, aPad->GetOrientation() );
bool drawOutline;
// For aClearanceValue.x == aClearanceValue.y and > 0 we use the pad shape
// and draw outlines with thicknes = aClearanceValue.
// Otherwise we draw only the inflated/deflated shape
if( aClearanceValue.x > 0 && aClearanceValue.x == aClearanceValue.y )
{
drawOutline = true;
aPad->BuildPadPolygon( corners, wxSize( 0, 0 ), aPad->GetOrientation() );
}
else
{
drawOutline = false;
aPad->BuildPadPolygon( corners, aClearanceValue, aPad->GetOrientation() );
}
SFVEC2F corners3DU[4];
@ -406,20 +419,23 @@ void EDA_3D_SETTINGS::createNewPadWithClearance( const D_PAD* aPad,
// Add the PAD contours
// Round segments cannot have 0-length elements, so we approximate them
// as a small circle
for( int i = 1; i <= 4; i++ )
if( drawOutline )
{
if( Is_segment_a_circle( corners3DU[i - 1], corners3DU[i & 3] ) )
for( int i = 1; i <= 4; i++ )
{
aDstContainer->Add( new CFILLEDCIRCLE2D( corners3DU[i - 1],
aClearanceValue.x * m_biuTo3Dunits,
*aPad ) );
}
else
{
aDstContainer->Add( new CROUNDSEGMENT2D( corners3DU[i - 1],
corners3DU[i & 3],
aClearanceValue.x * 2.0f * m_biuTo3Dunits,
*aPad ) );
if( Is_segment_a_circle( corners3DU[i - 1], corners3DU[i & 3] ) )
{
aDstContainer->Add( new CFILLEDCIRCLE2D( corners3DU[i - 1],
aClearanceValue.x * m_biuTo3Dunits,
*aPad ) );
}
else
{
aDstContainer->Add( new CROUNDSEGMENT2D( corners3DU[i - 1],
corners3DU[i & 3],
aClearanceValue.x * 2.0f * m_biuTo3Dunits,
*aPad ) );
}
}
}
}

2
3d-viewer/3d_canvas/create_layer_poly.cpp
View File

@ -42,7 +42,6 @@ void EDA_3D_SETTINGS::buildPadShapePolygon( const D_PAD* aPad,
SHAPE_POLY_SET& aCornerBuffer,
wxSize aInflateValue ) const
{
wxPoint corners[4];
wxPoint PadShapePos = aPad->ShapePos(); /* Note: for pad having a shape offset,
* the pad position is NOT the shape position */
switch( aPad->GetShape() )
@ -68,6 +67,7 @@ void EDA_3D_SETTINGS::buildPadShapePolygon( const D_PAD* aPad,
case PAD_SHAPE_TRAPEZOID:
case PAD_SHAPE_RECT:
{
wxPoint corners[4];
SHAPE_LINE_CHAIN aLineChain;
aPad->BuildPadPolygon( corners, aInflateValue, aPad->GetOrientation() );