最终版毛料态、自由锻、方体、有圆头的模板
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@ -2992,8 +2992,8 @@ namespace CadParamPluging.Cad
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// 1. 绘制完整锻件外轮廓（方体有圆头 - 白色，大圆弧）
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// 修正：取消外框处的圆角（改为直角），不再缩进弦线
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DrawBlockRoundHeadOutline(ctx, ox, oy, visualTotalW, H, arcHeight, 0);
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// 修正：圆弧弦线需向内缩进 innerFilletR，以与锻件圆角起点对齐
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DrawBlockRoundHeadOutline(ctx, ox, oy, visualTotalW, H, arcHeight, innerFilletR);
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// 2. 绘制分段式内框（左、中、右三段）以支持中间剖面区域的独立圆角
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// 中间区域（剖面）作为主体，如果设置了圆角，四个角都应为圆角
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@ -3010,14 +3010,14 @@ namespace CadParamPluging.Cad
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DrawBoxSectionContourWithFillet(ctx, xSectionLeft, xSectionRight, oy, H, innerFilletR);
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// 绘制左侧框线（连接左端圆弧和中间剖面框）
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// 左端: xInnerLeft (需处理左上下角的圆角 - 修正为不使用圆角，改为直角 0)
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// 左端: xInnerLeft (需处理左上下角的圆角 - 修正为使用内框圆角 innerFilletR，与方体参数一致)
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// 右端: xSectionLeft (连接到中间框的直边)
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DrawBoxSideFrame(ctx, xInnerLeft, xSectionLeft, oy, H, 0, isLeft: true);
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DrawBoxSideFrame(ctx, xInnerLeft, xSectionLeft, oy, H, innerFilletR, isLeft: true);
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// 绘制右侧框线
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// 左端: xSectionRight (连接到中间框的直边)
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// 右端: xInnerRight (需处理右上下角的圆角 - 修正为不使用圆角，改为直角 0)
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DrawBoxSideFrame(ctx, xSectionRight, xInnerRight, oy, H, 0, isLeft: false);
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// 右端: xInnerRight (需处理右上下角的圆角 - 修正为使用内框圆角 innerFilletR，与方体参数一致)
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DrawBoxSideFrame(ctx, xSectionRight, xInnerRight, oy, H, innerFilletR, isLeft: false);
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// 3. 剖面填充 - 只在中间区域
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// 如果有圆角，填充范围也应考虑圆角（不过Hatch边界通常可以自动处理）
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@ -3089,8 +3089,8 @@ namespace CadParamPluging.Cad
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// 标注从圆弧最外侧开始（避免与圆弧轮廓线重叠）
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double xOuterRight = ox + visualTotalW;
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// 修正：标注界线起点应从圆弧顶端开始，往内缩进一个圆弧高度 arcHeight (不再包含 innerFilletR)，定位在弦线上
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double xDimOrigin = xOuterRight - arcHeight;
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// 修正：标注界线起点应从圆弧顶端开始，往内缩进一个圆弧高度 arcHeight + innerFilletR，定位在弦线上
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double xDimOrigin = xOuterRight - (arcHeight + innerFilletR);
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AddLinearDim(
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ctx,
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@ -3221,53 +3221,56 @@ namespace CadParamPluging.Cad
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/// <summary>
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/// 绘制方体有圆头的完整外轮廓
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/// 结构：左侧大圆弧 (高=H/5) + 顶直线 + 右侧大圆弧 + 底直线
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/// 依据用户需求：圆弧高度(黄色)是总高度(粉色)的1/5
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/// offset: 弦线向内偏移量（通常用于与内框圆角对齐）
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/// 结构：4顶点多段线 (底边直 -> 左侧整体大圆弧 -> 顶边直 -> 右侧整体大圆弧)
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/// 修复：
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/// 1. 起点回归到水平线端点 (xLayoutLeft + r)，解决"起点往下"问题
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/// 2. 凸度动态计算，使得圆弧顶点顶到最外侧 (ox)，解决"穿模"问题
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/// </summary>
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private static void DrawBlockRoundHeadOutline(DrawingContext ctx, double ox, double oy, double totalWidth, double height, double arcHeight, double chordOffset = 0)
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private static void DrawBlockRoundHeadOutline(DrawingContext ctx, double ox, double oy, double totalWidth, double height, double arcHeight, double innerFilletR)
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{
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try
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{
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// 计算 Bulge
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// Bulge = Sagitta / HalfChord
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// Sagitta = arcHeight (H/5)
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// HalfChord = height / 2
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// Bulge = (H/5) / (H/2) = 2/5 = 0.4
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// 修正：0.4 (CCW) 导致圆弧向内凹（可能与Polyline默认法向或绘制方向有关），改为 -0.4 以向外凸
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double bulge = -0.4;
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// 1. 基础参数
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double H = height;
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double r = innerFilletR;
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// 弦线X坐标 (内框水平直边结束的位置)
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// 原有的布局边界 (用于内孔定位) 是 ox + arcHeight
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// 现在的起点要再往里缩 r
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double xCurrentLeft = ox + arcHeight + r;
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double xCurrentRight = ox + totalWidth - arcHeight - r;
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// 弦线位置（修正：增加 offset 以与内框圆角起点对齐）
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double xChordLeft = ox + arcHeight + chordOffset;
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double xChordRight = ox + totalWidth - arcHeight - chordOffset;
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// 2. 凸度计算
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// 我们希望圆弧从 xCurrentLeft 开始，顶点到达 ox
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// 拱高 Sagitta = xCurrentLeft - ox = (ox + arcHeight + r) - ox = arcHeight + r
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double sagitta = arcHeight + r;
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double halfChord = H / 2.0;
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// 向外凸 (For CW path: Left side Up -> Negative, Right side Down -> Negative)
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double bulge = 0;
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if (halfChord > 1e-3)
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{
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bulge = -(sagitta / halfChord);
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}
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var poly = new Polyline();
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// 顺时针绘制 (CW)
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// 1. 左下角 (Start of Left Arc)
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// 注意：为了让左侧圆弧向外（向左），在CW路径中（向上走），Bulge应为正（Left side of vector）
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// wait, CW path on left side goes UP.
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// Vector results: Up.
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// Bulge > 0 means CCW from vector. CCW from Up is Left.
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// So Bulge = 0.4 creates arc to Left. Correct.
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poly.AddVertexAt(0, new Point2d(xChordLeft, oy), bulge, 0, 0);
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// Vertex 0: 底边右侧起点
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poly.AddVertexAt(0, new Point2d(xCurrentRight, oy), 0, 0, 0);
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// 2. 左上角 (End of Left Arc, Start of Top Line)
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poly.AddVertexAt(1, new Point2d(xChordLeft, oy + height), 0, 0, 0);
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// Vertex 1: 底边左侧终点 (左侧大圆弧起点)
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// 设置凸度，下一段(到Vertex 2)是圆弧
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poly.AddVertexAt(1, new Point2d(xCurrentLeft, oy), bulge, 0, 0);
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// 3. 右上角 (End of Top Line, Start of Right Arc)
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// CW path goes Right? No, Top Line goes Right.
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// Right side path goes Down.
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// Vector: Down.
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// We want Arc to Right.
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// CCW from Down is Right.
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// So Bulge = 0.4.
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poly.AddVertexAt(2, new Point2d(xChordRight, oy + height), bulge, 0, 0);
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// Vertex 2: 顶边左侧起点 (左侧大圆弧终点)
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poly.AddVertexAt(2, new Point2d(xCurrentLeft, oy + H), 0, 0, 0);
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// 4. 右下角 (End of Right Arc, Start of Bottom Line)
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poly.AddVertexAt(3, new Point2d(xChordRight, oy), 0, 0, 0);
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// Vertex 3: 顶边右侧终点 (右侧大圆弧起点)
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poly.AddVertexAt(3, new Point2d(xCurrentRight, oy + H), bulge, 0, 0);
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// Close back to 0
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// Close back to Vertex 0 (Right Side Arc ends at Vertex 0)
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poly.Closed = true;
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ctx.Style?.Apply(poly, DrawingStyleManager.Role.OutlineBold);
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