设置背景图

qin

2024-05-23 42b20e2569a1860972c28be5b19e9fc0169e44bc

 Hydraulic/Hydro.MapUI/Map/MapViewer.Draw.cs

@@ -18,7 +18,7 @@
    public delegate void DrawDelegate(Graphics bufferG, Template template);

    public delegate void MouseDelegate(MouseEventArgs e);
    

    partial class MapViewer
    {
        void Draw(Graphics bufferG, Template template)
@@ -69,11 +69,28 @@

                // 恢复之前保存的绘图状态

                //var Cps = new List<PointF>
                //{
                //    template.BackGroundPoint1,
                //    new PointF(template.BackGroundPoint2.X,template.BackGroundPoint1.Y),
                //    new PointF(template.BackGroundPoint1.X,template.BackGroundPoint2.Y),
                //    //template.BackGroundPoint2,


                //};
                var p1 = new PointF(template.BackGroundImgX, template.BackGroundImgY);
                var p2 = new PointF(template.BackGroundImgX + template.BackGroundImgWidth, template.BackGroundImgY + template.BackGroundImgHeight);

                var f = template.BackGroundImgRotaAngle / 180 * Math.PI;
                var djx = Math.Sqrt((Math.Pow(template.BackGroundImgWidth, 2) + Math.Pow(template.BackGroundImgHeight, 2)));
                var p3 = new PointF(p1.X + (float)(Math.Cos(f) * template.BackGroundImgWidth), p1.Y + (float)(Math.Sin(f) * template.BackGroundImgWidth));
                var p4 = new PointF(p1.X - (float)(Math.Sin(f) * template.BackGroundImgHeight), p1.Y + (float)(Math.Cos(f) * template.BackGroundImgHeight));
                var Cps = new List<PointF>
                {
                    template.BackGroundPoint1,
                    new PointF(template.BackGroundPoint2.X,template.BackGroundPoint1.Y),
                    new PointF(template.BackGroundPoint1.X,template.BackGroundPoint2.Y),
                    //template.BackGroundPoint1,
                    //new PointF(template.BackGroundImgX,template.BackGroundImgY),
                    p1,
                    p3,p4
                    //template.BackGroundPoint2,
                    
                 
@@ -287,8 +304,14 @@
                    {

                        if (link.StartNode == null || link.EndNode == null) continue;
                        try
                        {
                            bufferG.DrawLines(link.Selected ? penChoosed : pen, new PointF[] { p1, p2 });
                        }
                        catch (Exception ex)
                        {

                        bufferG.DrawLines(link.Selected ? penChoosed : pen, new PointF[] { p1, p2 });
                        }
                        if (_Template.mapOption._ShowFlowDirection)
                        {
                            var c = new PointF((p1.X + p2.X) / 2, (p1.Y + p2.Y) / 2);
@@ -575,7 +598,7 @@
            }
            if (_isPainting)
            {
                if (_mouseState ==MapViewEnum.MouseState.新增立管)
                if (_mouseState == MapViewEnum.MouseState.新增立管)
                {
                    var wPos = GetZZWorldPoint(_select_junction1.Position3D, _MousePosition, new Vector3(0, 0, 1));
                    using (var pen = new Pen(Color.Black, 1 * r))
@@ -594,14 +617,14 @@
                        {
                            var wPos = GetZZWorldPoint(_select_junction1.Position3D, _MousePosition, new Vector3(1, 1, 0));
                            //getPointAndHeight(e, _select_junction1, out p, out z);
                            var mapPos= WorldPointToMapPoint(wPos);
                            var mapPos = WorldPointToMapPoint(wPos);
                            bufferG.DrawLine(pen, WorldPointToMapPoint(_select_junction1), mapPos);
                        }
                        else
                        {
                            bufferG.DrawLine(pen, WorldPointToMapPoint(_select_junction1), _MousePosition);
                        }
                        

                    }
                }
            }
@@ -799,13 +822,13 @@
        private PointF3D GetZZWorldPoint(PointF3D position3D, PointF mousePosition, Vector3 vector3)
        {
            //做一条通过position3D的平行于vector3的直线，
            if (vector3==new Vector3(0,0,1))
            if (vector3 == new Vector3(0, 0, 1))
            {
                return GetLGWorldPoint(position3D, mousePosition);
            }
            else
            {
                var p2=MapPointToWorldPoint(mousePosition, position3D.Z);
                var p2 = MapPointToWorldPoint(mousePosition, position3D.Z);
                var vector = new Vector2(p2.X - position3D.X, p2.Y - position3D.Y);
                //判断二维向量vector在第几象限，距离哪个轴最近
                var x = vector.X;
@@ -825,7 +848,7 @@
                        return new PointF3D(position3D.X - Math.Abs(x), position3D.Y, position3D.Z);
                    }
                }
               else
                else
                {
                    if (y > 0)
                    {
@@ -855,14 +878,14 @@
            float sin = (float)Math.Sin(radian_fushi);
            float cos = (float)Math.Cos(radian_fushi);
            var p1 = WorldPointToMapPoint(position3D);
            var dy=p2.Y - p1.Y;
            float dz= dy/cos;
            return new PointF3D(position3D.X, position3D.Y, position3D.Z+ dz);
            var dy = p2.Y - p1.Y;
            float dz = dy / cos;
            return new PointF3D(position3D.X, position3D.Y, position3D.Z + dz);

        }
        

        private PointF MapPointToWorldPoint(PointF3D point)
        { 
        {
            return MapPointToWorldPoint(new PointF(point.X, point.Y), point.Z);
        }
        /// <summary>
@@ -902,26 +925,26 @@
            return dist;
        }
        //判断A距离线段B和C的距离，如果超出了线段的范围，则返回到最近的端点的距离；距离线段中心点越远，返回的距离越大；
        private float Get_dist(PointF A, PointF B,PointF C,float MaxOff)
        private float Get_dist(PointF A, PointF B, PointF C, float MaxOff)
        {
            //PointF A, PointF B,PointF C，求点A到B、C构成线段的中心点的距离

            float dist_off = GetDistanceFromPointAToMidpointOfLineSegmentBC(A,B,C);
            float dist_off = GetDistanceFromPointAToMidpointOfLineSegmentBC(A, B, C);
            //使用dist_off 跟 线段A、B的长度比较，如果大于1/2，则返回MaxOff，否则按照比例返回
            float dist_len = Get_dist(B, C);
            if (dist_len < 5) dist_len = 5;
            float dist_add = (dist_off / dist_len>0.5?MaxOff:dist_off/dist_len*2*MaxOff);
            float dist_add = (dist_off / dist_len > 0.5 ? MaxOff : dist_off / dist_len * 2 * MaxOff);

            float dx = C.X - B.X;
            float dy = C.Y - B.Y;
            float dist = (float)Math.Sqrt(dx * dx + dy * dy);
            if (dist == 0) return Get_dist(A, B)+ dist_add;
            if (dist == 0) return Get_dist(A, B) + dist_add;
            float t = ((A.X - B.X) * dx + (A.Y - B.Y) * dy) / (dist * dist);
            if (t < 0) return Get_dist(A, B)+ dist_add;
            if (t > 1) return Get_dist(A, C)+ dist_add;
            if (t < 0) return Get_dist(A, B) + dist_add;
            if (t > 1) return Get_dist(A, C) + dist_add;
            float x = B.X + t * dx;
            float y = B.Y + t * dy;
            return Get_dist(A, new PointF(x, y))+ dist_add;
            return Get_dist(A, new PointF(x, y)) + dist_add;

        }
        private float GetDistanceFromPointAToMidpointOfLineSegmentBC(PointF A, PointF B, PointF C)