/* test if distance between a segment is > aMinDist
* segment start point is assumed in (0,0) and segment start point in m_segmEnd
* and its orientation is m_segmAngle (m_segmAngle must be already initialized)
* and have aSegmentWidth.
*/
bool DRC::checkClearanceSegmToPad( const D_PAD* aPad, int aSegmentWidth, int aMinDist )
{
wxSize padHalfsize; // half the dimension of the pad
wxPoint startPoint, endPoint;
int seuil;
int deltay;
int segmHalfWidth = aSegmentWidth / 2;
seuil = segmHalfWidth + aMinDist;
padHalfsize.x = aPad->GetSize().x >> 1;
padHalfsize.y = aPad->GetSize().y >> 1;
if( aPad->GetShape() == PAD_TRAPEZOID ) // The size is bigger, due to GetDelta() extra size
{
padHalfsize.x += std::abs(aPad->GetDelta().y) / 2; // Remember: GetDelta().y is the GetSize().x change
padHalfsize.y += std::abs(aPad->GetDelta().x) / 2; // Remember: GetDelta().x is the GetSize().y change
}
if( aPad->GetShape() == PAD_CIRCLE )
{
/* Easy case: just test the distance between segment and pad centre
* calculate pad coordinates in the X,Y axis with X axis = segment to test
*/
RotatePoint( &m_padToTestPos, m_segmAngle );
return checkMarginToCircle( m_padToTestPos, seuil + padHalfsize.x, m_segmLength );
}
/* calculate the bounding box of the pad, including the clearance and the segment width
* if the line from 0 to m_segmEnd does not intersect this bounding box,
* the clearance is always OK
* But if intersect, a better analysis of the pad shape must be done.
*/
m_xcliplo = m_padToTestPos.x - seuil - padHalfsize.x;
m_ycliplo = m_padToTestPos.y - seuil - padHalfsize.y;
m_xcliphi = m_padToTestPos.x + seuil + padHalfsize.x;
m_ycliphi = m_padToTestPos.y + seuil + padHalfsize.y;
startPoint.x = startPoint.y = 0;
endPoint = m_segmEnd;
double orient = aPad->GetOrientation();
RotatePoint( &startPoint, m_padToTestPos, -orient );
RotatePoint( &endPoint, m_padToTestPos, -orient );
if( checkLine( startPoint, endPoint ) )
return true;
/* segment intersects the bounding box. But there is not always a DRC error.
* A fine analysis of the pad shape must be done.
*/
switch( aPad->GetShape() )
{
default:
return false;
case PAD_OVAL:
/* an oval is a complex shape, but is a rectangle and 2 circles
* these 3 basic shapes are more easy to test.
*/
/* We use a vertical oval shape. for horizontal ovals, swap x and y size and rotate the shape*/
if( padHalfsize.x > padHalfsize.y )
{
EXCHG( padHalfsize.x, padHalfsize.y );
orient = AddAngles( orient, 900 );
}
deltay = padHalfsize.y - padHalfsize.x;
// here: padHalfsize.x = radius, delta = dist centre cercles a centre pad
// Test the rectangle area between the two circles
m_xcliplo = m_padToTestPos.x - seuil - padHalfsize.x;
m_ycliplo = m_padToTestPos.y - segmHalfWidth - deltay;
m_xcliphi = m_padToTestPos.x + seuil + padHalfsize.x;
m_ycliphi = m_padToTestPos.y + segmHalfWidth + deltay;
if( !checkLine( startPoint, endPoint ) )
{
return false;
}
// test the first circle
startPoint.x = m_padToTestPos.x; // startPoint = centre of the upper circle of the oval shape
startPoint.y = m_padToTestPos.y + deltay;
// Calculate the actual position of the circle, given the pad orientation:
RotatePoint( &startPoint, m_padToTestPos, orient );
// Calculate the actual position of the circle in the new X,Y axis:
RotatePoint( &startPoint, m_segmAngle );
if( !checkMarginToCircle( startPoint, padHalfsize.x + seuil, m_segmLength ) )
{
return false;
}
// test the second circle
startPoint.x = m_padToTestPos.x; // startPoint = centre of the lower circle of the oval shape
startPoint.y = m_padToTestPos.y - deltay;
RotatePoint( &startPoint, m_padToTestPos, orient );
RotatePoint( &startPoint, m_segmAngle );
if( !checkMarginToCircle( startPoint, padHalfsize.x + seuil, m_segmLength ) )
{
return false;
}
break;
case PAD_RECT: /* 2 rectangle + 4 1/4 cercles a tester */
/* Test du rectangle dimx + seuil, dimy */
m_xcliplo = m_padToTestPos.x - padHalfsize.x - seuil;
m_ycliplo = m_padToTestPos.y - padHalfsize.y;
m_xcliphi = m_padToTestPos.x + padHalfsize.x + seuil;
m_ycliphi = m_padToTestPos.y + padHalfsize.y;
if( !checkLine( startPoint, endPoint ) )
return false;
/* Test du rectangle dimx , dimy + seuil */
m_xcliplo = m_padToTestPos.x - padHalfsize.x;
m_ycliplo = m_padToTestPos.y - padHalfsize.y - seuil;
m_xcliphi = m_padToTestPos.x + padHalfsize.x;
m_ycliphi = m_padToTestPos.y + padHalfsize.y + seuil;
if( !checkLine( startPoint, endPoint ) )
return false;
/* test des 4 cercles ( surface d'solation autour des sommets */
/* test du coin sup. gauche du pad */
startPoint.x = m_padToTestPos.x - padHalfsize.x;
startPoint.y = m_padToTestPos.y - padHalfsize.y;
RotatePoint( &startPoint, m_padToTestPos, orient );
RotatePoint( &startPoint, m_segmAngle );
if( !checkMarginToCircle( startPoint, seuil, m_segmLength ) )
return false;
/* test du coin sup. droit du pad */
startPoint.x = m_padToTestPos.x + padHalfsize.x;
startPoint.y = m_padToTestPos.y - padHalfsize.y;
RotatePoint( &startPoint, m_padToTestPos, orient );
RotatePoint( &startPoint, m_segmAngle );
if( !checkMarginToCircle( startPoint, seuil, m_segmLength ) )
return false;
/* test du coin inf. gauche du pad */
startPoint.x = m_padToTestPos.x - padHalfsize.x;
startPoint.y = m_padToTestPos.y + padHalfsize.y;
RotatePoint( &startPoint, m_padToTestPos, orient );
RotatePoint( &startPoint, m_segmAngle );
if( !checkMarginToCircle( startPoint, seuil, m_segmLength ) )
return false;
/* test du coin inf. droit du pad */
startPoint.x = m_padToTestPos.x + padHalfsize.x;
startPoint.y = m_padToTestPos.y + padHalfsize.y;
RotatePoint( &startPoint, m_padToTestPos, orient );
RotatePoint( &startPoint, m_segmAngle );
if( !checkMarginToCircle( startPoint, seuil, m_segmLength ) )
return false;
break;
case PAD_TRAPEZOID:
{
wxPoint poly[4];
aPad->BuildPadPolygon( poly, wxSize( 0, 0 ), orient );
// Move shape to m_padToTestPos
for( int ii = 0; ii < 4; ii++ )
{
poly[ii] += m_padToTestPos;
RotatePoint( &poly[ii], m_segmAngle );
}
if( !trapezoid2segmentDRC( poly, wxPoint( 0, 0 ), wxPoint(m_segmLength,0), seuil ) )
return false;
}
break;
}
return true;
}
/* test if distance between a segment is > aMinDist
* segment start point is assumed in (0,0) and segment start point in m_segmEnd
* and its orientation is m_segmAngle (m_segmAngle must be already initialized)
* and have aSegmentWidth.
*/
bool DRC::checkClearanceSegmToPad( const D_PAD* aPad, int aSegmentWidth, int aMinDist )
{
wxSize padHalfsize; // half dimension of the pad
wxPoint startPoint, endPoint;
int segmHalfWidth = aSegmentWidth / 2;
int distToLine = segmHalfWidth + aMinDist;
padHalfsize.x = aPad->GetSize().x >> 1;
padHalfsize.y = aPad->GetSize().y >> 1;
if( aPad->GetShape() == PAD_SHAPE_TRAPEZOID ) // The size is bigger, due to GetDelta() extra size
{
padHalfsize.x += std::abs(aPad->GetDelta().y) / 2; // Remember: GetDelta().y is the GetSize().x change
padHalfsize.y += std::abs(aPad->GetDelta().x) / 2; // Remember: GetDelta().x is the GetSize().y change
}
if( aPad->GetShape() == PAD_SHAPE_CIRCLE )
{
/* Easy case: just test the distance between segment and pad centre
* calculate pad coordinates in the X,Y axis with X axis = segment to test
*/
RotatePoint( &m_padToTestPos, m_segmAngle );
return checkMarginToCircle( m_padToTestPos, distToLine + padHalfsize.x, m_segmLength );
}
/* calculate the bounding box of the pad, including the clearance and the segment width
* if the line from 0 to m_segmEnd does not intersect this bounding box,
* the clearance is always OK
* But if intersect, a better analysis of the pad shape must be done.
*/
m_xcliplo = m_padToTestPos.x - distToLine - padHalfsize.x;
m_ycliplo = m_padToTestPos.y - distToLine - padHalfsize.y;
m_xcliphi = m_padToTestPos.x + distToLine + padHalfsize.x;
m_ycliphi = m_padToTestPos.y + distToLine + padHalfsize.y;
startPoint.x = startPoint.y = 0;
endPoint = m_segmEnd;
double orient = aPad->GetOrientation();
RotatePoint( &startPoint, m_padToTestPos, -orient );
RotatePoint( &endPoint, m_padToTestPos, -orient );
if( checkLine( startPoint, endPoint ) )
return true;
/* segment intersects the bounding box. But there is not always a DRC error.
* A fine analysis of the pad shape must be done.
*/
switch( aPad->GetShape() )
{
default:
return false;
case PAD_SHAPE_OVAL:
{
/* an oval is a complex shape, but is a rectangle and 2 circles
* these 3 basic shapes are more easy to test.
*
* In calculations we are using a vertical oval shape
* (i.e. a vertical rounded segment)
* for horizontal oval shapes, swap x and y size and rotate the shape
*/
if( padHalfsize.x > padHalfsize.y )
{
std::swap( padHalfsize.x, padHalfsize.y );
orient = AddAngles( orient, 900 );
}
// here, padHalfsize.x is the radius of rounded ends.
int deltay = padHalfsize.y - padHalfsize.x;
// here: padHalfsize.x = radius,
// deltay = dist between the centre pad and the centre of a rounded end
// Test the rectangular area between the two circles (the rounded ends)
m_xcliplo = m_padToTestPos.x - distToLine - padHalfsize.x;
m_ycliplo = m_padToTestPos.y - deltay;
m_xcliphi = m_padToTestPos.x + distToLine + padHalfsize.x;
m_ycliphi = m_padToTestPos.y + deltay;
if( !checkLine( startPoint, endPoint ) )
{
return false;
}
// test the first circle
startPoint.x = m_padToTestPos.x; // startPoint = centre of the upper circle of the oval shape
startPoint.y = m_padToTestPos.y + deltay;
// Calculate the actual position of the circle, given the pad orientation:
RotatePoint( &startPoint, m_padToTestPos, orient );
// Calculate the actual position of the circle in the new X,Y axis:
RotatePoint( &startPoint, m_segmAngle );
if( !checkMarginToCircle( startPoint, padHalfsize.x + distToLine, m_segmLength ) )
{
return false;
}
// test the second circle
startPoint.x = m_padToTestPos.x; // startPoint = centre of the lower circle of the oval shape
startPoint.y = m_padToTestPos.y - deltay;
RotatePoint( &startPoint, m_padToTestPos, orient );
RotatePoint( &startPoint, m_segmAngle );
if( !checkMarginToCircle( startPoint, padHalfsize.x + distToLine, m_segmLength ) )
{
return false;
}
}
break;
case PAD_SHAPE_RECT:
// the area to test is a rounded rectangle.
// this can be done by testing 2 rectangles and 4 circles (the corners)
// Testing the first rectangle dimx + distToLine, dimy:
m_xcliplo = m_padToTestPos.x - padHalfsize.x - distToLine;
m_ycliplo = m_padToTestPos.y - padHalfsize.y;
m_xcliphi = m_padToTestPos.x + padHalfsize.x + distToLine;
m_ycliphi = m_padToTestPos.y + padHalfsize.y;
if( !checkLine( startPoint, endPoint ) )
return false;
// Testing the second rectangle dimx , dimy + distToLine
m_xcliplo = m_padToTestPos.x - padHalfsize.x;
m_ycliplo = m_padToTestPos.y - padHalfsize.y - distToLine;
m_xcliphi = m_padToTestPos.x + padHalfsize.x;
m_ycliphi = m_padToTestPos.y + padHalfsize.y + distToLine;
if( !checkLine( startPoint, endPoint ) )
return false;
// testing the 4 circles which are the clearance area of each corner:
// testing the left top corner of the rectangle
startPoint.x = m_padToTestPos.x - padHalfsize.x;
startPoint.y = m_padToTestPos.y - padHalfsize.y;
RotatePoint( &startPoint, m_padToTestPos, orient );
RotatePoint( &startPoint, m_segmAngle );
if( !checkMarginToCircle( startPoint, distToLine, m_segmLength ) )
return false;
// testing the right top corner of the rectangle
startPoint.x = m_padToTestPos.x + padHalfsize.x;
startPoint.y = m_padToTestPos.y - padHalfsize.y;
RotatePoint( &startPoint, m_padToTestPos, orient );
RotatePoint( &startPoint, m_segmAngle );
if( !checkMarginToCircle( startPoint, distToLine, m_segmLength ) )
return false;
// testing the left bottom corner of the rectangle
startPoint.x = m_padToTestPos.x - padHalfsize.x;
startPoint.y = m_padToTestPos.y + padHalfsize.y;
RotatePoint( &startPoint, m_padToTestPos, orient );
RotatePoint( &startPoint, m_segmAngle );
if( !checkMarginToCircle( startPoint, distToLine, m_segmLength ) )
return false;
// testing the right bottom corner of the rectangle
startPoint.x = m_padToTestPos.x + padHalfsize.x;
startPoint.y = m_padToTestPos.y + padHalfsize.y;
RotatePoint( &startPoint, m_padToTestPos, orient );
RotatePoint( &startPoint, m_segmAngle );
if( !checkMarginToCircle( startPoint, distToLine, m_segmLength ) )
return false;
break;
case PAD_SHAPE_TRAPEZOID:
{
wxPoint poly[4];
aPad->BuildPadPolygon( poly, wxSize( 0, 0 ), orient );
// Move shape to m_padToTestPos
for( int ii = 0; ii < 4; ii++ )
{
poly[ii] += m_padToTestPos;
RotatePoint( &poly[ii], m_segmAngle );
}
if( !trapezoid2segmentDRC( poly, wxPoint( 0, 0 ), wxPoint(m_segmLength,0), distToLine ) )
return false;
}
break;
}
return true;
}
