20251205

张世豪

2025-12-05 2144172c7b961d4112850692ed77b46f1ae5d373

 src/lujing/Lunjingguihua.java

@@ -284,10 +284,32 @@
            Vector2D baseDir = new Vector2D(longest.end.x - longest.start.x,
                                            longest.end.y - longest.start.y).normalize();
            Vector2D perp = baseDir.rotate90CCW();
            Vector2D baseStartVec = new Vector2D(longest.start.x, longest.start.y);
            double baseProjection = perp.dot(baseStartVec); // keep offsets relative to the longest edge start

            Envelope env = safeArea.getEnvelopeInternal();
            double minProj = perp.dot(new Vector2D(env.getMinX(), env.getMinY()));
            double maxProj = perp.dot(new Vector2D(env.getMaxX(), env.getMaxY()));
            double minProj = Double.POSITIVE_INFINITY;
            double maxProj = Double.NEGATIVE_INFINITY;
            Coordinate[] supportCoords = safeArea.getCoordinates();
            if (supportCoords != null && supportCoords.length > 0) {
                for (Coordinate coord : supportCoords) {
                    double projection = perp.dot(new Vector2D(coord.x, coord.y)) - baseProjection;
                    if (projection < minProj) {
                        minProj = projection;
                    }
                    if (projection > maxProj) {
                        maxProj = projection;
                    }
                }
            } else {
                Envelope env = safeArea.getEnvelopeInternal();
                minProj = perp.dot(new Vector2D(env.getMinX(), env.getMinY())) - baseProjection;
                maxProj = perp.dot(new Vector2D(env.getMaxX(), env.getMaxY())) - baseProjection;
            }
            if (minProj > maxProj) {
                double tmp = minProj;
                minProj = maxProj;
                maxProj = tmp;
            }
            double first = minProj - width / 2.0;

            Geometry originalPoly = createPolygonFromCoordinates(polygon);