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-rw-r--r--src/sim/sim_linepolyfill.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/src/sim/sim_linepolyfill.c b/src/sim/sim_linepolyfill.c
index e339fe5..745c70b 100644
--- a/src/sim/sim_linepolyfill.c
+++ b/src/sim/sim_linepolyfill.c
@@ -713,6 +713,60 @@ void simLineThick(cdCanvas* canvas, int x1, int y1, int x2, int y2)
cdCanvasLineStyle(canvas, style);
}
+void simfLineThick(cdCanvas* canvas, double x1, double y1, double x2, double y2)
+{
+ const int interior = canvas->interior_style;
+ const int width = canvas->line_width;
+ const int style = canvas->line_style;
+
+ const double dx = x2-x1;
+ const double dy = y2-y1;
+
+ const double len = hypot(dx,dy);
+
+ const double dnx = dx/len;
+ const double dny = dy/len;
+
+ const double w1 = width/2.0;
+ const double w2 = width-w1;
+
+ const double n1x = w1*dny;
+ const double n1y = -w1*dnx;
+
+ const double n2x = -w2*dny;
+ const double n2y = w2*dnx;
+
+ const double p1x = x1 + n1x;
+ const double p1y = y1 + n1y;
+ const double p2x = x1 + n2x;
+ const double p2y = y1 + n2y;
+ const double p3x = p2x + dx;
+ const double p3y = p2y + dy;
+ const double p4x = p1x + dx;
+ const double p4y = p1y + dy;
+
+ cdPoint poly[4];
+
+ cdCanvasLineWidth(canvas, 1);
+ cdCanvasInteriorStyle(canvas, CD_SOLID);
+ cdCanvasLineStyle(canvas, CD_CONTINUOUS);
+
+ poly[0].x = _cdRound(p1x);
+ poly[0].y = _cdRound(p1y);
+ poly[1].x = _cdRound(p2x);
+ poly[1].y = _cdRound(p2y);
+ poly[2].x = _cdRound(p3x);
+ poly[2].y = _cdRound(p3y);
+ poly[3].x = _cdRound(p4x);
+ poly[3].y = _cdRound(p4y);
+
+ simPolyFill(canvas->simulation, poly, 4);
+
+ cdCanvasLineWidth(canvas, width);
+ cdCanvasInteriorStyle(canvas, interior);
+ cdCanvasLineStyle(canvas, style);
+}
+
void simLineThin(cdCanvas* canvas, int x1, int y1, int x2, int y2)
{
unsigned short ErrorInc, ErrorAcc;