2d尝试，功能基本实现，还差绘制特定区域

lixiaojun

2024-08-16 8f677b1741b78e4de4c95373fc02587a05d7b5ca

 WinFrmUI/Yw.WinFrmUI.Hydro.L2d.Core/01-network/04-link/Pump.cs

@@ -30,11 +30,29 @@
        /// </summary>
        public float? Height { get; set; }

        private Coordinate _coordinate { get; set; }//坐标信息

        //获取坐标位置
        private Coordinate GetCoordinate(Graphics g)
        {
            var ws = this.Width.HasValue ? this.Width.Value : CacheHelper.HydroL2d.Pump.Size.Width;
            var hs = this.Height.HasValue ? this.Height.Value : CacheHelper.HydroL2d.Pump.Size.Height;
            var wz = ws / g.PageScale;
            var hz = hs / g.PageScale;
            var angle = (float)this.StartPosition.AngleClockWise(this.EndPosition);
            var xp = this.StartPosition.GetXPoint(this.EndPosition);
            var size = new SizeF(xp.X - this.StartPosition.X, 2 * hz);
            return Coordinate.GetCoordinate(this.StartPosition, angle, size, StringAlignment.Near, StringAlignment.Center);
        }

        /// <summary>
        /// 绘制
        /// </summary>
        public override void Draw(Graphics g)
        {
            _coordinate = GetCoordinate(g);
            #region 画线

            var fromCachePen = true;
            var pen = CacheHelper.PumpLinePen;
            if (this.LineColor.HasValue && this.LineWidth.HasValue)
@@ -42,19 +60,26 @@
                pen = new Pen(this.LineColor.Value, this.LineWidth.Value);
                fromCachePen = false;
            }
            var penWidth = pen.Width;
            pen.Width = pen.Width / g.PageScale;
            g.DrawLine(pen, this.StartPosition, this.EndPosition);
            pen.Width = penWidth;
            if (!fromCachePen)
            {
                pen.Dispose();
            }

            #endregion

            #region 画图片

            var img = CacheHelper.PumpImage;
            if (this.Image != null)
            {
                img = this.Image;
            }
            var width = this.Width.HasValue ? this.Width.Value : CacheHelper.HydroL2d.Pump.Width;
            var height = this.Height.HasValue ? this.Height.Value : CacheHelper.HydroL2d.Pump.Height;
            var width = this.Width.HasValue ? this.Width.Value : CacheHelper.HydroL2d.Pump.Size.Width;
            var height = this.Height.HasValue ? this.Height.Value : CacheHelper.HydroL2d.Pump.Size.Height;
            var isNewImage = false;
            if (img.Width != (int)width || img.Height != (int)height)
            {
@@ -62,13 +87,50 @@
                isNewImage = true;
            }

            g.DrawImage(img, this.StartPosition.GetCenter(this.EndPosition));
            var pt = this.StartPosition.GetCenter(this.EndPosition);
            var dx = width / g.PageScale / 2f;
            var dy = height / g.PageScale / 2f;
            var p0 = new PointF(pt.X - dx, pt.Y - dy);

            g.DrawImage(img, p0);

            if (isNewImage)
            {
                img.Dispose();
            }

            #endregion

        }

        /// <summary>
        /// 包含
        /// </summary>
        public override bool Contains(PointF pt)
        {
            if (_coordinate == null)
            {
                return false;
            }
            var pa = _coordinate.Origin.RotatePointF(pt, _coordinate.Angle, false);
            return _coordinate.BeforeRectf.Contains(pa);
        }

        /// <summary>
        /// 相交
        /// </summary>
        public override bool Intersect(RectangleF rectf)
        {
            var positions = this.Positions;
            foreach (var position in positions)
            {
                if (rectf.Contains(position))
                {
                    return true;
                }
            }
            return false;

        }