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Fixed some issues with arcs (Arcs are a nightmare in graphic applications).

This commit is contained in:
jean-pierre charras 2010-10-11 22:57:25 +02:00
parent c5668298a1
commit fffd3be6a7
6 changed files with 149 additions and 108 deletions
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3
gerbview/class_GERBER.cpp
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@ -57,7 +57,7 @@
GERBER::GERBER( WinEDA_GerberFrame* aParent, int aLayer )
{
m_Parent = aParent;
m_Layer = aLayer; // Layer Number
m_GraphicLayer = aLayer; // Graphic layer Number
m_Selected_Tool = FIRST_DCODE;
@ -157,6 +157,7 @@ void GERBER::ResetDefaultValues()
m_FilesPtr = 0;
m_PolygonFillMode = false;
m_PolygonFillModeState = 0;
m_Selected_Tool = FIRST_DCODE;
}

2
gerbview/class_GERBER.h
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@ -33,7 +33,7 @@ public:
wxString m_FileName; // Full File Name for this layer
wxString m_ImageName; // Image name, from IN <name>* command
wxString m_LayerName; // Layer name, from LN <name>* command
int m_Layer; // Layer Number
int m_GraphicLayer; // Graphic layer Number
bool m_LayerNegative; // true = Negative Layer
bool m_GerbMetric; // false = Inches, true = metric
bool m_Relative; // false = absolute Coord, true = relative Coord

6
gerbview/class_gerber_draw_item.cpp
View File

@ -352,6 +352,12 @@ void GERBER_DRAW_ITEM::Draw( WinEDA_DrawPanel* aPanel, wxDC* aDC, int aDrawMode,
break;
case GBR_ARC:
#if 0 // for arc debug only
GRLine( &aPanel->m_ClipBox, aDC, GetABPosition( m_Start ),
GetABPosition( m_ArcCentre ), 0, color );
GRLine( &aPanel->m_ClipBox, aDC, GetABPosition( m_End ),
GetABPosition( m_ArcCentre ), 0, color );
#endif
if( !isFilled )
{
GRArc1( &aPanel->m_ClipBox, aDC, GetABPosition( m_Start ),

18
gerbview/gerber_test_files/test-polygon_with_arc-fill.gbr Normal file
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@ -0,0 +1,18 @@
G04 Draw a rectangle with a rounded right side
G04 Hand coded by Julian Lamb *
%MOIN*%
%FSLAX23Y23*%
%ADD10C,0.050*%
G04 Draw a rectangle with a rounded right side*
G36*
G01X0Y0D02*
X00200Y0D01*
G75*
G03X00200Y00200I0J00100D01*
G01X0Y00200D01*
G04 Do not close with a final line, so let gerbv automatically close*
G37*
M02*

172
gerbview/rs274d.cpp
View File

@ -3,12 +3,15 @@
/********************/
#include "fctsys.h"
//#include "polygons_defs.h"
#include "common.h"
//#include "confirm.h"
//#include "macros.h"
#include "gerbview.h"
#include "trigo.h"
#include "macros.h"
#include "class_gerber_draw_item.h"
#include "class_GERBER.h"
@ -20,8 +23,8 @@
/* Gerber: NOTES about some important commands found in RS274D and RS274X (G codes):
* Gn =
* G01 linear interpolation (right trace)
* G02, G20, G21 Circular interpolation, meaning trig <0
* G03, G30, G31 Circular interpolation, meaning trigo> 0
* G02, G20, G21 Circular interpolation, meaning trig <0 (clockwise)
* G03, G30, G31 Circular interpolation, meaning trigo> 0 (counterclockwise)
* G04 = comment
* G06 parabolic interpolation
* G07 Cubic Interpolation
@ -224,8 +227,8 @@ static void fillLineGBRITEM( GERBER_DRAW_ITEM* aGbrItem,
*/
static void fillArcGBRITEM( GERBER_DRAW_ITEM* aGbrItem, int Dcode_index, int aLayer,
const wxPoint& aStart, const wxPoint& aEnd,
const wxPoint& rel_center, int aWidth,
bool clockwise, bool multiquadrant,
const wxPoint& aRelCenter, int aWidth,
bool aClockwise, bool aMultiquadrant,
bool aLayerNegative,
bool aImageNegative )
{
@ -236,52 +239,75 @@ static void fillArcGBRITEM( GERBER_DRAW_ITEM* aGbrItem, int Dcode_index, int aL
aGbrItem->m_Size.x = aGbrItem->m_Size.y = aWidth;
aGbrItem->m_Flashed = false;
if( multiquadrant )
{
center.x = aStart.x + rel_center.x;
center.y = aStart.y + rel_center.y;
if( clockwise )
{
aGbrItem->m_Start = aStart;
aGbrItem->m_End = aEnd;
}
if( aMultiquadrant )
center = aStart + aRelCenter;
else
{
aGbrItem->m_Start = aEnd;
aGbrItem->m_End = aStart;
}
}
else
{
center = rel_center;
// in single quadrant mode the relative coordinate aRelCenter is always >= 0
// So we must recalculate the actual sign of aRelCenter.x and aRelCenter.y
center = aRelCenter;
// calculate arc end coordinate relative to the staring point,
// because center is relative to the center point
delta = aEnd - aStart;
// now calculate the relative to aStart center position, for a draw function
// that use trigonometric arc angle (or counter-clockwise)
/* Quadrants:
* Y
* 2 | 1
* -------X
* 3 | 4
* C = actual relative arc center, S = arc start (axis origin) E = relative arc end
*/
if( (delta.x >= 0) && (delta.y >= 0) )
{
// Quadrant 2
/* Quadrant 1 (trigo or cclockwise):
* C | E
* ---S---
* 3 | 4
*/
NEGATE( center.x);
}
else if( (delta.x >= 0) && (delta.y < 0) )
{
// Quadrant 1
center.y = -center.y;
/* Quadrant 4 (trigo or cclockwise):
* 2 | C
* ---S---
* 3 | E
*/
// Nothing to do
}
else if( (delta.x < 0) && (delta.y >= 0) )
{
// Quadrant 4
center.x = -center.x;
/* Quadrant 2 (trigo or cclockwise):
* E | 1
* ---S---
* C | 4
*/
NEGATE( center.x);
NEGATE( center.y);
}
else
{
// Quadrant 3
center.x = -center.x;
center.y = -center.y;
/* Quadrant 3 (trigo or cclockwise):
* 2 | 1
* ---S---
* E | C
*/
NEGATE( center.y);
}
center.x += aStart.x;
center.y += aStart.y;
// Due to your draw arc function, we need this:
if( !aClockwise )
center = - center;
if( clockwise )
// Calculate actual arc center coordinate:
center += aStart;
}
if( aClockwise )
{
aGbrItem->m_Start = aStart;
aGbrItem->m_End = aEnd;
@ -291,11 +317,10 @@ static void fillArcGBRITEM( GERBER_DRAW_ITEM* aGbrItem, int Dcode_index, int aL
aGbrItem->m_Start = aEnd;
aGbrItem->m_End = aStart;
}
}
aGbrItem->m_DCode = Dcode_index;
aGbrItem->m_ArcCentre = center;
aGbrItem->m_DCode = Dcode_index;
aGbrItem->m_LayerNegative = aLayerNegative;
aGbrItem->m_ImageNegative = aImageNegative;
@ -370,68 +395,51 @@ static void fillArcPOLY( BOARD* aPcb, GERBER_DRAW_ITEM* aGbrItem,
aStart, aEnd, rel_center, 0,
clockwise, multiquadrant, aLayerNegative, aImageNegative );
// dummyTrack has right geometric parameters, and has its Y coordinates negated (to match the pcbnew Y axis).
// Approximate arc by 36 segments per 360 degree
const int increment_angle = 360 / 36;
wxPoint center;
center = dummyGbrItem.m_ArcCentre;
// Calculate relative coordinates;
// Calculate coordinates relative to arc center;
wxPoint start = dummyGbrItem.m_Start - center;
wxPoint end = dummyGbrItem.m_End - center;
/* Calculate angle arc
* angle is here clockwise because Y axis is reversed
* angles are in 0.1 deg
* angle is trigonometrical (counter-clockwise),
* and axis is the X,Y gerber coordinates
*/
double start_angle = atan2( (double) start.y, (double) start.x );
start_angle = 180 * start_angle / M_PI;
double end_angle = atan2( (double) end.y, (double) end.x );
end_angle = 180 * end_angle / M_PI;
double angle = start_angle - end_angle;
int start_angle = wxRound(atan2( (double) start.y, (double) start.x ) * 1800 / M_PI);
int end_angle = wxRound(atan2( (double) end.y, (double) end.x ) * 1800 / M_PI);
// D( printf( " >>>> st %d,%d angle %f, end %d,%d angle %f delta %f\n",
// start.x, start.y, start_angle, end.x, end.y, end_angle, angle ) );
if( !clockwise )
{
EXCHG( start, end );
D( printf( " >>>> reverse arc\n" ) );
}
// dummyTrack has right geometric parameters, but
// fillArcGBRITEM calculate arc parameters for a draw function that expects
// start_angle < end_angle. So ensure this is the case here:
// Due to the fact atan2 returns angles between -180 to + 180 degrees,
// this not always the case ( a modulo 360.0 degrees can be lost )
if( start_angle > end_angle )
end_angle += 3600;
// Normalize angle
while( angle > 360.0 )
angle -= 360.0;
int arc_angle = start_angle - end_angle;
// Approximate arc by 36 segments per 360 degree
int increment_angle = 3600 / 36;
int count = ABS( arc_angle / increment_angle );
while( angle < 0.0 )
angle += 360.0;
int count = (int) ( angle / increment_angle );
if( count <= 0 )
count = 1;
// D( printf( " >>>> angle %f, cnt %d sens %d\n", angle, count, clockwise ) );
// calculate segments
// calculate polygon corners
// when not clockwise, dummyGbrItem arc goes from end to start
wxPoint start_arc = start;
for( int ii = 1; ii <= count; ii++ )
for( int ii = 0; ii <= count; ii++ )
{
int rot;
wxPoint end_arc = start;
int rot = 10 * ii * increment_angle; // rot is in 0.1 deg
if( ii < count )
{
if( clockwise )
RotatePoint( &end_arc, rot );
rot = ii * increment_angle; // rot is in 0.1 deg
else
rot = (count - ii) * increment_angle; // rot is in 0.1 deg
if( ii < count )
RotatePoint( &end_arc, -rot );
}
else
end_arc = end;
else // last point
end_arc = clockwise ? end : start;
// D( printf( " >> Add arc %d rot %d, edge poly item %d,%d to %d,%d\n",
// ii, rot, start_arc.x, start_arc.y,end_arc.x, end_arc.y ); )
if( aGbrItem->m_PolyCorners.size() == 0 )
aGbrItem->m_PolyCorners.push_back( start_arc + center );
aGbrItem->m_PolyCorners.push_back( end_arc + center );
start_arc = end_arc;
@ -472,6 +480,7 @@ wxPoint GERBER::ReadXYCoord( char*& Text )
{
if( *Text == '.' )
is_float = true;
// count digits only (sign and decimal point are not counted)
if( (*Text >= '0') && (*Text <='9') )
nbdigits++;
@ -568,6 +577,7 @@ wxPoint GERBER::ReadIJCoord( char*& Text )
{
if( *Text == '.' )
is_float = true;
// count digits only (sign and decimal point are not counted)
if( (*Text >= '0') && (*Text <='9') )
nbdigits++;
@ -737,7 +747,7 @@ bool GERBER::Execute_G_Command( char*& text, int G_commande )
case GC_TURN_OFF_360_INTERPOL: // disable Multi cadran arc and Arc interpol
m_360Arc_enbl = false;
m_Iterpolation = GERB_INTERPOL_LINEAR_1X;
m_Iterpolation = GERB_INTERPOL_LINEAR_1X; // not sure it should be done
break;
case GC_TURN_ON_360_INTERPOL:
@ -865,6 +875,7 @@ bool GERBER::Execute_DCODE_Command( WinEDA_GerberFrame* frame, char*& text, int
case GERB_INTERPOL_ARC_NEG:
case GERB_INTERPOL_ARC_POS:
gbritem = (GERBER_DRAW_ITEM*)( pcb->m_Drawings.GetLast() );
// D( printf( "Add arc poly %d,%d to %d,%d fill %d interpol %d 360_enb %d\n",
// m_PreviousPos.x, m_PreviousPos.y, m_CurrentPos.x,
// m_CurrentPos.y, m_PolygonFillModeState,
@ -877,6 +888,7 @@ bool GERBER::Execute_DCODE_Command( WinEDA_GerberFrame* frame, char*& text, int
default:
gbritem = (GERBER_DRAW_ITEM*)( pcb->m_Drawings.GetLast() );
// D( printf( "Add poly edge %d,%d to %d,%d fill %d\n",
// m_PreviousPos.x, m_PreviousPos.y,
// m_CurrentPos.x, m_CurrentPos.y, m_Iterpolation ); )
@ -931,6 +943,7 @@ bool GERBER::Execute_DCODE_Command( WinEDA_GerberFrame* frame, char*& text, int
case GERB_INTERPOL_LINEAR_1X:
gbritem = new GERBER_DRAW_ITEM( pcb, this );
pcb->m_Drawings.Append( gbritem );
// D( printf( "Add line %d,%d to %d,%d\n",
// m_PreviousPos.x, m_PreviousPos.y,
// m_CurrentPos.x, m_CurrentPos.y ); )
@ -948,6 +961,7 @@ bool GERBER::Execute_DCODE_Command( WinEDA_GerberFrame* frame, char*& text, int
case GERB_INTERPOL_ARC_POS:
gbritem = new GERBER_DRAW_ITEM( pcb, this );
pcb->m_Drawings.Append( gbritem );
// D( printf( "Add arc %d,%d to %d,%d center %d, %d interpol %d 360_enb %d\n",
// m_PreviousPos.x, m_PreviousPos.y, m_CurrentPos.x,
// m_CurrentPos.y, m_IJPos.x,
@ -971,6 +985,7 @@ bool GERBER::Execute_DCODE_Command( WinEDA_GerberFrame* frame, char*& text, int
case 2: // code D2: exposure OFF (i.e. "move to")
m_Exposure = false;
// D( printf( "Move to %d,%d to %d,%d\n",
// m_PreviousPos.x, m_PreviousPos.y,
// m_CurrentPos.x, m_CurrentPos.y ); )
@ -988,6 +1003,7 @@ bool GERBER::Execute_DCODE_Command( WinEDA_GerberFrame* frame, char*& text, int
gbritem = new GERBER_DRAW_ITEM( pcb, this );
pcb->m_Drawings.Append( gbritem );
// D( printf( "Add flashed dcode %d layer %d at %d %d\n", dcode, activeLayer,
// m_CurrentPos.x, m_CurrentPos.y ); )
fillFlashedGBRITEM( gbritem, aperture,

2
gerbview/tracepcb.cpp
View File

@ -159,7 +159,7 @@ void Show_Items_DCode_Value( WinEDA_DrawPanel* aPanel, wxDC* aDC, BOARD* aPcb, i
if( gerb_item->m_DCode <= 0 )
continue;
if( gerb_item->m_Flashed )
if( gerb_item->m_Flashed || gerb_item->m_Shape == GBR_ARC )
pos = gerb_item->m_Start;
else
{