765 lines
32 KiB
C#
765 lines
32 KiB
C#
using System;
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using System.Collections.Generic;
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using Autodesk.AutoCAD.DatabaseServices;
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using Autodesk.AutoCAD.Geometry;
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using CadParamPluging.Common;
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namespace CadParamPluging.Cad
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{
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/// <summary>
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/// 特征驱动绘图引擎 - 根据参数存在性动态绘制图形
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/// </summary>
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public static class FeatureDrivenDrawer
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{
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#region 参数Key常量
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// 环形参数
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public const string KeyOuterDiameter1 = "OuterDiameter1";
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public const string KeyOuterDiameter1TolPlus = "OuterDiameter1TolPlus";
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public const string KeyOuterDiameter1TolMinus = "OuterDiameter1TolMinus";
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public const string KeyInnerDiameter2 = "InnerDiameter2";
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public const string KeyInnerDiameter2TolPlus = "InnerDiameter2TolPlus";
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public const string KeyInnerDiameter2TolMinus = "InnerDiameter2TolMinus";
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public const string KeyHeight1 = "Height1";
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public const string KeyHeight1TolPlus = "Height1TolPlus";
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public const string KeyHeight1TolMinus = "Height1TolMinus";
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public const string KeyMinWallThickness = "MinWallThickness";
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// 零件尺寸（车加工态）
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public const string KeyOuterDiameter1Prime = "OuterDiameter1Prime";
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public const string KeyInnerDiameter2Prime = "InnerDiameter2Prime";
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public const string KeyHeight1Prime = "Height1Prime";
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// 可选特征参数
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public const string KeyUnspecifiedFilletRadiusMax = "UnspecifiedFilletRadiusMax";
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public const string KeyInnerRadiusMax = "InnerRadiusMax";
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public const string KeyRoundHeadFilletRadiusMax = "RoundHeadFilletRadiusMax";
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// 饼盘参数
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public const string KeyDiskDiameter = "DiskDiameter";
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public const string KeyDiskDiameterTolPlus = "DiskDiameterTolPlus";
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public const string KeyDiskDiameterTolMinus = "DiskDiameterTolMinus";
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public const string KeyDiskHeight = "DiskHeight";
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public const string KeyDiskHeightTolPlus = "DiskHeightTolPlus";
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public const string KeyDiskHeightTolMinus = "DiskHeightTolMinus";
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// 轴杆参数
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public const string KeyDiameter = "Diameter";
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public const string KeyDiameterTolPlus = "DiameterTolPlus";
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public const string KeyDiameterTolMinus = "DiameterTolMinus";
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public const string KeyLength = "Length";
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public const string KeyLengthTolPlus = "LengthTolPlus";
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public const string KeyLengthTolMinus = "LengthTolMinus";
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// 方形参数
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public const string KeySize1 = "Size1";
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public const string KeySize2 = "Size2";
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public const string KeySize3 = "Size3";
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public const string KeySize1TolPlus = "Size1TolPlus";
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public const string KeySize1TolMinus = "Size1TolMinus";
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public const string KeySize2TolPlus = "Size2TolPlus";
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public const string KeySize2TolMinus = "Size2TolMinus";
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public const string KeySize3TolPlus = "Size3TolPlus";
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public const string KeySize3TolMinus = "Size3TolMinus";
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#endregion
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#region 绘图上下文
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public class DrawingContext
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{
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public CadContext Ctx { get; set; }
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public ParamBag Bag { get; set; }
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public Point3d Center { get; set; }
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public string DeliveryStatus { get; set; }
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public string StructuralFeature { get; set; }
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public string SpecialCondition { get; set; }
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public Database Db => Ctx?.Database;
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public Transaction Tr => Ctx?.Transaction;
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public BlockTableRecord Btr { get; set; }
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public bool IsMachined => !string.IsNullOrWhiteSpace(DeliveryStatus)
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&& DeliveryStatus.IndexOf("车加工", StringComparison.OrdinalIgnoreCase) >= 0;
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public bool IsCenterPunched => !string.IsNullOrWhiteSpace(SpecialCondition)
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&& SpecialCondition.IndexOf("中心冲孔", StringComparison.OrdinalIgnoreCase) >= 0;
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public bool HasRoundHead => !string.IsNullOrWhiteSpace(SpecialCondition)
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&& SpecialCondition.IndexOf("有圆头", StringComparison.OrdinalIgnoreCase) >= 0;
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}
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#endregion
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#region 主入口
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public static void Draw(CadContext ctx, ParamBag bag, string deliveryStatus, string structuralFeature,
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string specialCondition = null, Point3d? center = null)
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{
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if (ctx == null) throw new ArgumentNullException(nameof(ctx));
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if (bag == null) throw new ArgumentNullException(nameof(bag));
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var db = ctx.Database;
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var tr = ctx.Transaction;
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var btr = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
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var context = new DrawingContext
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{
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Ctx = ctx,
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Bag = bag,
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Center = center ?? Point3d.Origin,
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DeliveryStatus = deliveryStatus,
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StructuralFeature = structuralFeature,
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SpecialCondition = specialCondition,
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Btr = btr
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};
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// 根据结构特征分发到对应绘制器
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if (IsRing(structuralFeature))
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{
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DrawRingFeatures(context);
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}
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else if (IsDisk(structuralFeature))
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{
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DrawDiskFeatures(context);
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}
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else if (IsShaft(structuralFeature))
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{
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DrawShaftFeatures(context);
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}
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else if (IsBlock(structuralFeature))
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{
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DrawBlockFeatures(context);
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}
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}
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#endregion
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#region 结构特征判断
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private static bool IsRing(string feature)
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{
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return !string.IsNullOrWhiteSpace(feature)
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&& feature.IndexOf("环形", StringComparison.OrdinalIgnoreCase) >= 0;
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}
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private static bool IsDisk(string feature)
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{
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return !string.IsNullOrWhiteSpace(feature)
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&& (feature.IndexOf("饼盘", StringComparison.OrdinalIgnoreCase) >= 0
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|| feature.IndexOf("饼", StringComparison.OrdinalIgnoreCase) >= 0
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|| feature.IndexOf("盘", StringComparison.OrdinalIgnoreCase) >= 0);
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}
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private static bool IsShaft(string feature)
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{
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return !string.IsNullOrWhiteSpace(feature)
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&& (feature.IndexOf("轴杆", StringComparison.OrdinalIgnoreCase) >= 0
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|| feature.IndexOf("轴", StringComparison.OrdinalIgnoreCase) >= 0
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|| feature.IndexOf("杆", StringComparison.OrdinalIgnoreCase) >= 0);
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}
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private static bool IsBlock(string feature)
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{
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return !string.IsNullOrWhiteSpace(feature)
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&& feature.IndexOf("方体", StringComparison.OrdinalIgnoreCase) >= 0;
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}
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#endregion
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#region 环形绘制 - 特征驱动
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private static void DrawRingFeatures(DrawingContext ctx)
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{
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var bag = ctx.Bag;
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// 必需参数检测
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var outerDia = bag.GetDoubleOrNull(KeyOuterDiameter1);
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var height = bag.GetDoubleOrNull(KeyHeight1);
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if (!outerDia.HasValue || outerDia.Value <= 0)
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{
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return; // 缺少外径，无法绘制
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}
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if (!height.HasValue || height.Value <= 0)
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{
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return; // 缺少高度，无法绘制
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}
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// 计算图形偏移，使其居中
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double ox = ctx.Center.X - height.Value / 2.0;
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double oy = ctx.Center.Y;
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double R = outerDia.Value / 2.0;
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// 加载虚线线型
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TryLoadLinetype(ctx.Db, ctx.Tr, "DASHED");
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// === 特征1: 锻件外轮廓（必绘） ===
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DrawForgingOuterContour(ctx, ox, oy, R, height.Value);
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// === 特征2: 外径公差标注（如果有公差参数） ===
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var outerTolPlus = bag.GetDoubleOrNull(KeyOuterDiameter1TolPlus);
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var outerTolMinus = bag.GetDoubleOrNull(KeyOuterDiameter1TolMinus);
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DrawOuterDiameterDimension(ctx, ox, oy, R, outerDia.Value, outerTolPlus, outerTolMinus);
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// === 特征3: 内孔（如果有内径参数） ===
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var innerDia = bag.GetDoubleOrNull(KeyInnerDiameter2);
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if (innerDia.HasValue && innerDia.Value > 0)
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{
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double r = innerDia.Value / 2.0;
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var innerTolPlus = bag.GetDoubleOrNull(KeyInnerDiameter2TolPlus);
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var innerTolMinus = bag.GetDoubleOrNull(KeyInnerDiameter2TolMinus);
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DrawInnerHole(ctx, ox, oy, r, height.Value);
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DrawInnerDiameterDimension(ctx, ox, oy, r, height.Value, innerDia.Value, innerTolPlus, innerTolMinus);
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// === 特征4: 内径圆角（如果有内径半径R参数，且是中心冲孔） ===
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var innerRadiusMax = bag.GetDoubleOrNull(KeyInnerRadiusMax);
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if (innerRadiusMax.HasValue && innerRadiusMax.Value > 0 && ctx.IsCenterPunched)
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{
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DrawInnerFillets(ctx, ox, oy, r, height.Value, innerRadiusMax.Value);
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}
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}
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// === 特征5: 高度/长度标注 ===
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var heightTolPlus = bag.GetDoubleOrNull(KeyHeight1TolPlus);
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var heightTolMinus = bag.GetDoubleOrNull(KeyHeight1TolMinus);
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DrawHeightDimension(ctx, ox, oy, R, height.Value, heightTolPlus, heightTolMinus);
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// === 特征6: 未注圆角（如果有该参数） ===
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var unspecifiedFillet = bag.GetDoubleOrNull(KeyUnspecifiedFilletRadiusMax);
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if (unspecifiedFillet.HasValue && unspecifiedFillet.Value > 0)
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{
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DrawUnspecifiedFilletNote(ctx, ox, oy, R, height.Value, unspecifiedFillet.Value);
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}
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// === 特征7: 最小壁厚T标注（如果有该参数） ===
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var minWallThickness = bag.GetDoubleOrNull(KeyMinWallThickness);
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if (minWallThickness.HasValue && minWallThickness.Value > 0 && innerDia.HasValue)
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{
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DrawMinWallThicknessNote(ctx, ox, oy, R, innerDia.Value / 2.0, minWallThickness.Value);
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}
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// === 特征8: 零件轮廓（车加工态） ===
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if (ctx.IsMachined)
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{
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var outerDiaPrime = bag.GetDoubleOrNull(KeyOuterDiameter1Prime);
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var innerDiaPrime = bag.GetDoubleOrNull(KeyInnerDiameter2Prime);
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var heightPrime = bag.GetDoubleOrNull(KeyHeight1Prime);
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if (outerDiaPrime.HasValue && outerDiaPrime.Value > 0 && heightPrime.HasValue && heightPrime.Value > 0)
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{
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DrawPartContour(ctx, ox, oy, height.Value, outerDiaPrime.Value, innerDiaPrime, heightPrime.Value);
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}
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}
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}
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private static void DrawForgingOuterContour(DrawingContext ctx, double ox, double oy, double R, double height)
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{
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var poly = new Polyline();
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poly.AddVertexAt(0, new Point2d(ox, oy - R), 0, 0, 0);
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poly.AddVertexAt(1, new Point2d(ox + height, oy - R), 0, 0, 0);
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poly.AddVertexAt(2, new Point2d(ox + height, oy + R), 0, 0, 0);
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poly.AddVertexAt(3, new Point2d(ox, oy + R), 0, 0, 0);
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poly.Closed = true;
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poly.ColorIndex = 7;
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ctx.Btr.AppendEntity(poly);
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ctx.Tr.AddNewlyCreatedDBObject(poly, true);
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}
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private static void DrawInnerHole(DrawingContext ctx, double ox, double oy, double r, double height)
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{
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var lineTop = new Line(new Point3d(ox, oy + r, 0), new Point3d(ox + height, oy + r, 0));
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lineTop.ColorIndex = 2;
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lineTop.Linetype = "DASHED";
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ctx.Btr.AppendEntity(lineTop);
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ctx.Tr.AddNewlyCreatedDBObject(lineTop, true);
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var lineBot = new Line(new Point3d(ox, oy - r, 0), new Point3d(ox + height, oy - r, 0));
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lineBot.ColorIndex = 2;
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lineBot.Linetype = "DASHED";
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ctx.Btr.AppendEntity(lineBot);
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ctx.Tr.AddNewlyCreatedDBObject(lineBot, true);
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}
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private static void DrawInnerFillets(DrawingContext ctx, double ox, double oy, double r, double height, double filletR)
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{
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// 在内孔四角绘制圆角示意
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// 左上角
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DrawFilletArc(ctx, ox + filletR, oy + r - filletR, filletR, Math.PI / 2, Math.PI);
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// 左下角
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DrawFilletArc(ctx, ox + filletR, oy - r + filletR, filletR, Math.PI, Math.PI * 1.5);
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// 右上角
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DrawFilletArc(ctx, ox + height - filletR, oy + r - filletR, filletR, 0, Math.PI / 2);
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// 右下角
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DrawFilletArc(ctx, ox + height - filletR, oy - r + filletR, filletR, Math.PI * 1.5, Math.PI * 2);
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}
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private static void DrawFilletArc(DrawingContext ctx, double cx, double cy, double r, double startAngle, double endAngle)
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{
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try
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{
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var arc = new Arc(new Point3d(cx, cy, 0), r, startAngle, endAngle);
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arc.ColorIndex = 7;
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ctx.Btr.AppendEntity(arc);
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ctx.Tr.AddNewlyCreatedDBObject(arc, true);
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}
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catch
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{
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// 忽略圆弧创建错误
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}
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}
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private static void DrawOuterDiameterDimension(DrawingContext ctx, double ox, double oy, double R,
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double diameter, double? tolPlus, double? tolMinus)
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{
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var dimText = BuildDimensionText($"%%c{diameter}", tolPlus, tolMinus);
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AddLinearDim(ctx, new Point3d(ox, oy + R, 0), new Point3d(ox, oy - R, 0),
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new Point3d(ox - 20, oy, 0), 90, dimText);
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}
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private static void DrawInnerDiameterDimension(DrawingContext ctx, double ox, double oy, double r,
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double height, double diameter, double? tolPlus, double? tolMinus)
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{
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var dimText = BuildDimensionText($"%%c{diameter}", tolPlus, tolMinus);
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AddLinearDim(ctx, new Point3d(ox, oy + r, 0), new Point3d(ox, oy - r, 0),
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new Point3d(ox + height + 20, oy, 0), 90, dimText);
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}
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private static void DrawHeightDimension(DrawingContext ctx, double ox, double oy, double R,
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double height, double? tolPlus, double? tolMinus)
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{
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var baseText = $"{height}min";
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var dimText = BuildDimensionText(baseText, tolPlus, tolMinus);
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AddLinearDim(ctx, new Point3d(ox, oy - R, 0), new Point3d(ox + height, oy - R, 0),
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new Point3d(ox + height / 2, oy - R - 20, 0), 0, dimText);
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}
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private static void DrawUnspecifiedFilletNote(DrawingContext ctx, double ox, double oy, double R, double height, double filletR)
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{
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// 在图纸右上角添加文字说明
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try
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{
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var text = new DBText();
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text.TextString = $"未注圆角半径R≤{filletR}";
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text.Position = new Point3d(ox + height + 10, oy + R + 15, 0);
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text.Height = 5;
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text.ColorIndex = 7;
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ctx.Btr.AppendEntity(text);
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ctx.Tr.AddNewlyCreatedDBObject(text, true);
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}
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catch
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{
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// 忽略
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}
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}
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private static void DrawMinWallThicknessNote(DrawingContext ctx, double ox, double oy, double R, double r, double thickness)
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{
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// 壁厚标注线 - 在截面中间位置
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try
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{
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// 在内外径之间画一条标注线
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var midX = ox;
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var midY = oy + (R + r) / 2;
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var leader = new Line(new Point3d(midX, oy + r, 0), new Point3d(midX, oy + R, 0));
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leader.ColorIndex = 4;
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ctx.Btr.AppendEntity(leader);
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ctx.Tr.AddNewlyCreatedDBObject(leader, true);
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var text = new DBText();
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text.TextString = $"T≥{thickness}";
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text.Position = new Point3d(midX - 20, midY, 0);
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text.Height = 4;
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text.ColorIndex = 4;
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ctx.Btr.AppendEntity(text);
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ctx.Tr.AddNewlyCreatedDBObject(text, true);
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}
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catch
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{
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// 忽略
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}
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}
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private static void DrawPartContour(DrawingContext ctx, double ox, double oy, double forgingHeight,
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double outerDiaPrime, double? innerDiaPrime, double heightPrime)
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{
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double offsetX = (forgingHeight - heightPrime) / 2.0;
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double Rp = outerDiaPrime / 2.0;
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// 零件外轮廓
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var polyPart = new Polyline();
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polyPart.AddVertexAt(0, new Point2d(ox + offsetX, oy - Rp), 0, 0, 0);
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polyPart.AddVertexAt(1, new Point2d(ox + offsetX + heightPrime, oy - Rp), 0, 0, 0);
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polyPart.AddVertexAt(2, new Point2d(ox + offsetX + heightPrime, oy + Rp), 0, 0, 0);
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polyPart.AddVertexAt(3, new Point2d(ox + offsetX, oy + Rp), 0, 0, 0);
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polyPart.Closed = true;
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polyPart.ColorIndex = 7;
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ctx.Btr.AppendEntity(polyPart);
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ctx.Tr.AddNewlyCreatedDBObject(polyPart, true);
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// 填充
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try
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{
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var hatch = new Hatch();
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hatch.SetDatabaseDefaults();
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hatch.Normal = new Vector3d(0, 0, 1);
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hatch.Elevation = 0.0;
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ctx.Btr.AppendEntity(hatch);
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ctx.Tr.AddNewlyCreatedDBObject(hatch, true);
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hatch.SetHatchPattern(HatchPatternType.PreDefined, "ANSI31");
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hatch.PatternScale = 0.8;
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hatch.PatternAngle = 0;
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hatch.Associative = false;
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hatch.ColorIndex = 7;
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var ids = new ObjectIdCollection();
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ids.Add(polyPart.ObjectId);
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hatch.AppendLoop(HatchLoopTypes.External, ids);
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hatch.EvaluateHatch(true);
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}
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catch
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{
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// 忽略
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}
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// 零件外径标注
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AddLinearDim(ctx, new Point3d(ox + offsetX, oy + Rp, 0), new Point3d(ox + offsetX, oy - Rp, 0),
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new Point3d(ox + offsetX - 10, oy, 0), 90, $"%%c{outerDiaPrime}");
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// 零件高度标注
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AddLinearDim(ctx, new Point3d(ox + offsetX, oy - Rp, 0), new Point3d(ox + offsetX + heightPrime, oy - Rp, 0),
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new Point3d(ox + offsetX + heightPrime / 2, oy - Rp - 10, 0), 0, $"{heightPrime}");
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 饼盘绘制 - 特征驱动
|
||
|
||
private static void DrawDiskFeatures(DrawingContext ctx)
|
||
{
|
||
var bag = ctx.Bag;
|
||
|
||
var diameter = bag.GetDoubleOrNull(KeyDiskDiameter);
|
||
var height = bag.GetDoubleOrNull(KeyDiskHeight);
|
||
|
||
if (!diameter.HasValue || diameter.Value <= 0) return;
|
||
if (!height.HasValue || height.Value <= 0) return;
|
||
|
||
double ox = ctx.Center.X - diameter.Value / 2.0;
|
||
double oy = ctx.Center.Y - height.Value / 2.0;
|
||
double R = diameter.Value / 2.0;
|
||
double H = height.Value;
|
||
|
||
// 绘制饼盘轮廓（俯视图为圆，侧视图为矩形）
|
||
// 这里绘制侧视图
|
||
var poly = new Polyline();
|
||
poly.AddVertexAt(0, new Point2d(ox, oy), 0, 0, 0);
|
||
poly.AddVertexAt(1, new Point2d(ox + diameter.Value, oy), 0, 0, 0);
|
||
poly.AddVertexAt(2, new Point2d(ox + diameter.Value, oy + H), 0, 0, 0);
|
||
poly.AddVertexAt(3, new Point2d(ox, oy + H), 0, 0, 0);
|
||
poly.Closed = true;
|
||
poly.ColorIndex = 7;
|
||
|
||
ctx.Btr.AppendEntity(poly);
|
||
ctx.Tr.AddNewlyCreatedDBObject(poly, true);
|
||
|
||
// 直径标注
|
||
var diaTolPlus = bag.GetDoubleOrNull(KeyDiskDiameterTolPlus);
|
||
var diaTolMinus = bag.GetDoubleOrNull(KeyDiskDiameterTolMinus);
|
||
var diaDimText = BuildDimensionText($"%%c{diameter.Value}", diaTolPlus, diaTolMinus);
|
||
AddLinearDim(ctx, new Point3d(ox, oy, 0), new Point3d(ox + diameter.Value, oy, 0),
|
||
new Point3d(ctx.Center.X, oy - 20, 0), 0, diaDimText);
|
||
|
||
// 高度标注
|
||
var htTolPlus = bag.GetDoubleOrNull(KeyDiskHeightTolPlus);
|
||
var htTolMinus = bag.GetDoubleOrNull(KeyDiskHeightTolMinus);
|
||
var htDimText = BuildDimensionText($"{H}", htTolPlus, htTolMinus);
|
||
AddLinearDim(ctx, new Point3d(ox + diameter.Value, oy, 0), new Point3d(ox + diameter.Value, oy + H, 0),
|
||
new Point3d(ox + diameter.Value + 20, ctx.Center.Y, 0), 90, htDimText);
|
||
|
||
// 未注圆角
|
||
var unspecifiedFillet = bag.GetDoubleOrNull(KeyUnspecifiedFilletRadiusMax);
|
||
if (unspecifiedFillet.HasValue && unspecifiedFillet.Value > 0)
|
||
{
|
||
DrawUnspecifiedFilletNote(ctx, ox, oy + H, R, diameter.Value, unspecifiedFillet.Value);
|
||
}
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 轴杆绘制 - 特征驱动
|
||
|
||
private static void DrawShaftFeatures(DrawingContext ctx)
|
||
{
|
||
var bag = ctx.Bag;
|
||
|
||
var diameter = bag.GetDoubleOrNull(KeyDiameter);
|
||
var length = bag.GetDoubleOrNull(KeyLength);
|
||
|
||
if (!diameter.HasValue || diameter.Value <= 0) return;
|
||
if (!length.HasValue || length.Value <= 0) return;
|
||
|
||
double ox = ctx.Center.X - length.Value / 2.0;
|
||
double oy = ctx.Center.Y;
|
||
double R = diameter.Value / 2.0;
|
||
double L = length.Value;
|
||
|
||
TryLoadLinetype(ctx.Db, ctx.Tr, "CENTER");
|
||
|
||
// 绘制轴杆轮廓（侧视图为矩形）
|
||
var poly = new Polyline();
|
||
poly.AddVertexAt(0, new Point2d(ox, oy - R), 0, 0, 0);
|
||
poly.AddVertexAt(1, new Point2d(ox + L, oy - R), 0, 0, 0);
|
||
poly.AddVertexAt(2, new Point2d(ox + L, oy + R), 0, 0, 0);
|
||
poly.AddVertexAt(3, new Point2d(ox, oy + R), 0, 0, 0);
|
||
poly.Closed = true;
|
||
poly.ColorIndex = 7;
|
||
|
||
ctx.Btr.AppendEntity(poly);
|
||
ctx.Tr.AddNewlyCreatedDBObject(poly, true);
|
||
|
||
// 中心线
|
||
var centerLine = new Line(new Point3d(ox - 10, oy, 0), new Point3d(ox + L + 10, oy, 0));
|
||
centerLine.ColorIndex = 1;
|
||
centerLine.Linetype = "CENTER";
|
||
ctx.Btr.AppendEntity(centerLine);
|
||
ctx.Tr.AddNewlyCreatedDBObject(centerLine, true);
|
||
|
||
// 直径标注
|
||
var diaTolPlus = bag.GetDoubleOrNull(KeyDiameterTolPlus);
|
||
var diaTolMinus = bag.GetDoubleOrNull(KeyDiameterTolMinus);
|
||
var diaDimText = BuildDimensionText($"%%c{diameter.Value}", diaTolPlus, diaTolMinus);
|
||
AddLinearDim(ctx, new Point3d(ox, oy + R, 0), new Point3d(ox, oy - R, 0),
|
||
new Point3d(ox - 20, oy, 0), 90, diaDimText);
|
||
|
||
// 长度标注
|
||
var lenTolPlus = bag.GetDoubleOrNull(KeyLengthTolPlus);
|
||
var lenTolMinus = bag.GetDoubleOrNull(KeyLengthTolMinus);
|
||
var lenDimText = BuildDimensionText($"{L}", lenTolPlus, lenTolMinus);
|
||
AddLinearDim(ctx, new Point3d(ox, oy - R, 0), new Point3d(ox + L, oy - R, 0),
|
||
new Point3d(ctx.Center.X, oy - R - 20, 0), 0, lenDimText);
|
||
|
||
// 未注圆角
|
||
var unspecifiedFillet = bag.GetDoubleOrNull(KeyUnspecifiedFilletRadiusMax);
|
||
if (unspecifiedFillet.HasValue && unspecifiedFillet.Value > 0)
|
||
{
|
||
DrawUnspecifiedFilletNote(ctx, ox, oy, R, L, unspecifiedFillet.Value);
|
||
}
|
||
|
||
// 圆头处圆角（如果有圆头）
|
||
if (ctx.HasRoundHead)
|
||
{
|
||
var roundHeadFillet = bag.GetDoubleOrNull(KeyRoundHeadFilletRadiusMax);
|
||
if (roundHeadFillet.HasValue && roundHeadFillet.Value > 0)
|
||
{
|
||
// 绘制圆头
|
||
DrawRoundHeadEnds(ctx, ox, oy, R, L, roundHeadFillet.Value);
|
||
}
|
||
}
|
||
}
|
||
|
||
private static void DrawRoundHeadEnds(DrawingContext ctx, double ox, double oy, double R, double L, double filletR)
|
||
{
|
||
// 左端圆头
|
||
try
|
||
{
|
||
var arcLeft = new Arc(new Point3d(ox, oy, 0), R, Math.PI / 2, Math.PI * 1.5);
|
||
arcLeft.ColorIndex = 7;
|
||
ctx.Btr.AppendEntity(arcLeft);
|
||
ctx.Tr.AddNewlyCreatedDBObject(arcLeft, true);
|
||
}
|
||
catch { }
|
||
|
||
// 右端圆头
|
||
try
|
||
{
|
||
var arcRight = new Arc(new Point3d(ox + L, oy, 0), R, -Math.PI / 2, Math.PI / 2);
|
||
arcRight.ColorIndex = 7;
|
||
ctx.Btr.AppendEntity(arcRight);
|
||
ctx.Tr.AddNewlyCreatedDBObject(arcRight, true);
|
||
}
|
||
catch { }
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 方形绘制 - 特征驱动
|
||
|
||
private static void DrawBlockFeatures(DrawingContext ctx)
|
||
{
|
||
var bag = ctx.Bag;
|
||
|
||
// 尝试读取Size1/2/3，如果没有则尝试通用尺寸
|
||
var size1 = bag.GetDoubleOrNull(KeySize1) ?? bag.GetDoubleOrNull("Size123");
|
||
var size2 = bag.GetDoubleOrNull(KeySize2);
|
||
var size3 = bag.GetDoubleOrNull(KeySize3);
|
||
|
||
if (!size1.HasValue || size1.Value <= 0) return;
|
||
|
||
// 默认为正方形或使用size1
|
||
double width = size1.Value;
|
||
double height = size2.HasValue && size2.Value > 0 ? size2.Value : size1.Value;
|
||
double depth = size3.HasValue && size3.Value > 0 ? size3.Value : 0;
|
||
|
||
double ox = ctx.Center.X - width / 2.0;
|
||
double oy = ctx.Center.Y - height / 2.0;
|
||
|
||
// 绘制正视图（矩形）
|
||
var poly = new Polyline();
|
||
poly.AddVertexAt(0, new Point2d(ox, oy), 0, 0, 0);
|
||
poly.AddVertexAt(1, new Point2d(ox + width, oy), 0, 0, 0);
|
||
poly.AddVertexAt(2, new Point2d(ox + width, oy + height), 0, 0, 0);
|
||
poly.AddVertexAt(3, new Point2d(ox, oy + height), 0, 0, 0);
|
||
poly.Closed = true;
|
||
poly.ColorIndex = 7;
|
||
|
||
ctx.Btr.AppendEntity(poly);
|
||
ctx.Tr.AddNewlyCreatedDBObject(poly, true);
|
||
|
||
// 宽度标注 (Size1)
|
||
var tol1Plus = bag.GetDoubleOrNull(KeySize1TolPlus);
|
||
var tol1Minus = bag.GetDoubleOrNull(KeySize1TolMinus);
|
||
var dim1Text = BuildDimensionText($"{width}", tol1Plus, tol1Minus);
|
||
AddLinearDim(ctx, new Point3d(ox, oy, 0), new Point3d(ox + width, oy, 0),
|
||
new Point3d(ctx.Center.X, oy - 20, 0), 0, dim1Text);
|
||
|
||
// 高度标注 (Size2)
|
||
if (size2.HasValue && size2.Value > 0)
|
||
{
|
||
var tol2Plus = bag.GetDoubleOrNull(KeySize2TolPlus);
|
||
var tol2Minus = bag.GetDoubleOrNull(KeySize2TolMinus);
|
||
var dim2Text = BuildDimensionText($"{height}", tol2Plus, tol2Minus);
|
||
AddLinearDim(ctx, new Point3d(ox + width, oy, 0), new Point3d(ox + width, oy + height, 0),
|
||
new Point3d(ox + width + 20, ctx.Center.Y, 0), 90, dim2Text);
|
||
}
|
||
|
||
// 深度标注 (Size3) - 如果有的话，以文字形式标注
|
||
if (depth > 0)
|
||
{
|
||
var tol3Plus = bag.GetDoubleOrNull(KeySize3TolPlus);
|
||
var tol3Minus = bag.GetDoubleOrNull(KeySize3TolMinus);
|
||
var dim3Text = BuildDimensionText($"深度:{depth}", tol3Plus, tol3Minus);
|
||
try
|
||
{
|
||
var text = new DBText();
|
||
text.TextString = dim3Text;
|
||
text.Position = new Point3d(ox + width + 10, oy + height + 10, 0);
|
||
text.Height = 5;
|
||
text.ColorIndex = 7;
|
||
ctx.Btr.AppendEntity(text);
|
||
ctx.Tr.AddNewlyCreatedDBObject(text, true);
|
||
}
|
||
catch { }
|
||
}
|
||
|
||
// 未注圆角
|
||
var unspecifiedFillet = bag.GetDoubleOrNull(KeyUnspecifiedFilletRadiusMax);
|
||
if (unspecifiedFillet.HasValue && unspecifiedFillet.Value > 0)
|
||
{
|
||
try
|
||
{
|
||
var text = new DBText();
|
||
text.TextString = $"未注圆角半径R≤{unspecifiedFillet.Value}";
|
||
text.Position = new Point3d(ox + width + 10, oy + height + 20, 0);
|
||
text.Height = 5;
|
||
text.ColorIndex = 7;
|
||
ctx.Btr.AppendEntity(text);
|
||
ctx.Tr.AddNewlyCreatedDBObject(text, true);
|
||
}
|
||
catch { }
|
||
}
|
||
|
||
// 圆头处圆角
|
||
if (ctx.HasRoundHead)
|
||
{
|
||
var roundHeadFillet = bag.GetDoubleOrNull(KeyRoundHeadFilletRadiusMax);
|
||
if (roundHeadFillet.HasValue && roundHeadFillet.Value > 0)
|
||
{
|
||
// 绘制四角圆角
|
||
DrawFilletArc(ctx, ox + roundHeadFillet.Value, oy + roundHeadFillet.Value, roundHeadFillet.Value, Math.PI, Math.PI * 1.5);
|
||
DrawFilletArc(ctx, ox + width - roundHeadFillet.Value, oy + roundHeadFillet.Value, roundHeadFillet.Value, Math.PI * 1.5, Math.PI * 2);
|
||
DrawFilletArc(ctx, ox + width - roundHeadFillet.Value, oy + height - roundHeadFillet.Value, roundHeadFillet.Value, 0, Math.PI / 2);
|
||
DrawFilletArc(ctx, ox + roundHeadFillet.Value, oy + height - roundHeadFillet.Value, roundHeadFillet.Value, Math.PI / 2, Math.PI);
|
||
}
|
||
}
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 辅助方法
|
||
|
||
private static string BuildDimensionText(string baseText, double? tolPlus, double? tolMinus)
|
||
{
|
||
if (!tolPlus.HasValue && !tolMinus.HasValue)
|
||
{
|
||
return baseText;
|
||
}
|
||
|
||
var result = baseText;
|
||
|
||
// 公差格式: 基本尺寸 +上差/-下差
|
||
if (tolPlus.HasValue && tolMinus.HasValue)
|
||
{
|
||
var plusStr = tolPlus.Value >= 0 ? $"+{tolPlus.Value}" : $"{tolPlus.Value}";
|
||
var minusStr = tolMinus.Value >= 0 ? $"+{tolMinus.Value}" : $"{tolMinus.Value}";
|
||
result += $"({plusStr}/{minusStr})";
|
||
}
|
||
else if (tolPlus.HasValue)
|
||
{
|
||
var plusStr = tolPlus.Value >= 0 ? $"+{tolPlus.Value}" : $"{tolPlus.Value}";
|
||
result += $"({plusStr})";
|
||
}
|
||
else if (tolMinus.HasValue)
|
||
{
|
||
var minusStr = tolMinus.Value >= 0 ? $"+{tolMinus.Value}" : $"{tolMinus.Value}";
|
||
result += $"({minusStr})";
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
private static void AddLinearDim(DrawingContext ctx, Point3d pt1, Point3d pt2, Point3d dimLinePt,
|
||
double rotationDeg, string textOverride)
|
||
{
|
||
try
|
||
{
|
||
double rotRad = rotationDeg * Math.PI / 180.0;
|
||
var dim = new RotatedDimension(rotRad, pt1, pt2, dimLinePt, textOverride, ctx.Db.Dimstyle);
|
||
dim.ColorIndex = 4;
|
||
ctx.Btr.AppendEntity(dim);
|
||
ctx.Tr.AddNewlyCreatedDBObject(dim, true);
|
||
}
|
||
catch
|
||
{
|
||
// 忽略标注错误
|
||
}
|
||
}
|
||
|
||
private static void TryLoadLinetype(Database db, Transaction tr, string linetypeName)
|
||
{
|
||
try
|
||
{
|
||
var linetypeTbl = (LinetypeTable)tr.GetObject(db.LinetypeTableId, OpenMode.ForRead);
|
||
if (!linetypeTbl.Has(linetypeName))
|
||
{
|
||
try
|
||
{
|
||
db.LoadLineTypeFile(linetypeName, "acad.lin");
|
||
}
|
||
catch { }
|
||
}
|
||
}
|
||
catch { }
|
||
}
|
||
|
||
#endregion
|
||
}
|
||
}
|