From 28e1c9f3b620567acced4730cc36368090a6abe5 Mon Sep 17 00:00:00 2001
From: cloudflight <cloudflight@126.com>
Date: 星期六, 15 六月 2024 12:56:50 +0800
Subject: [PATCH] feat:添加右上角视角辅助栏
---
Hydraulic/Hydro.MapUI/Map/MapViewer.Draw.cs | 126 +++++++++++++++++++++++++++++++++++++++++
1 files changed, 125 insertions(+), 1 deletions(-)
diff --git a/Hydraulic/Hydro.MapUI/Map/MapViewer.Draw.cs b/Hydraulic/Hydro.MapUI/Map/MapViewer.Draw.cs
index a8af967..aa41280 100644
--- a/Hydraulic/Hydro.MapUI/Map/MapViewer.Draw.cs
+++ b/Hydraulic/Hydro.MapUI/Map/MapViewer.Draw.cs
@@ -1,4 +1,5 @@
锘縰sing Hydro.MapView;
+using Hydro.MapView.Base;
using Hydro.MapView.Common;
using System;
using System.Collections.Generic;
@@ -130,7 +131,7 @@
if (template == null) return;
var _Nodes = template.network.Nodes.ViewNodes;
var _Links = template.network.Links.ViewLinks;
-
+ var _Areas = template.network.Areas;
var Cpoints = getCurclePoints(64).ToList();
var r = 1.73f / zoom;
@@ -161,6 +162,52 @@
Pen penClosed = new Pen(Color.OrangeRed, 2 * r);
Pen penHovered = new Pen(Color.DeepSkyBlue, 5 * r);
+
+ //缁樺埗闈�
+ using (Pen pen0 = new Pen(Color.FromArgb(0, 0, 255), 2 * r))
+ {
+ foreach (var area in _Areas)
+ {
+
+ if (!area.Visible) continue;
+ if (!IsFaceVisibleToCamera(area, GetCameraPosition())) continue;
+ if (area.Elev < minElve || area.Elev >= maxElve) continue;
+
+ var p = new List<PointF>();
+ foreach (var node in area.InnerNodes)
+ {
+ p.Add(WorldPointToMapPoint(node, template.OffSet));
+ }
+ if (p.Count < 3) continue;
+ pen0.Color = penClosed.Color = area.color;
+ Pen pen = pen0;
+ if (area.Hovered) pen = penHovered;
+ bufferG.FillPolygon(pen.Brush, p.ToArray());
+ bufferG.DrawPolygon(pen, p.ToArray());
+ //鏄剧ずarea鐨勫悕绉�
+ var c = new PointF(p.Average(p0 => p0.X), p.Average(p0 => p0.Y));
+ var brush=new SolidBrush(Color.White);
+
+
+
+
+ var gs = bufferG.Save();
+ // 搴旂敤鐭╅樀鍙樻崲浠ユ姷娑堜箣鍓嶇殑缈昏浆鏁堟灉
+ bufferG.ScaleTransform(1 / Zoom.X, 1 / Zoom.Y);
+
+ Font font = new Font(FontFamily.GenericSansSerif, 10*10*zoom);
+
+ SizeF textSize = bufferG.MeasureString(area.Name, font);
+ var center = new PointF(c.X * Zoom.X, c.Y * Zoom.Y);
+ float textLeft = center.X - textSize.Width / 2;
+ float textTop = center.Y - textSize.Height / 2;
+ PointF pd = new PointF(textLeft, textTop);
+
+ bufferG.DrawString(area.Name, font, brush, pd);
+ // 鎭㈠涔嬪墠淇濆瓨鐨勭粯鍥剧姸鎬�
+ bufferG.Restore(gs);
+ }
+ }
// 缁樺埗绾�
@@ -963,7 +1010,84 @@
#endregion
+ #region 璁＄畻涓夌淮鐩告満
+ public PointF3D GetCameraPosition( float distance=1)
+ {
+ // 灏嗚搴﹁浆鎹负寮у害
+ float rotationRadians = (float)Rotation * (float)Math.PI / 180;
+ float rotationFRadians = (float)RotationF * (float)Math.PI / 180;
+ // 璁＄畻鐩告満鐨勭悆鍧愭爣绯讳綅缃�
+ float x = distance * (float)Math.Sin(rotationFRadians) * (float)Math.Cos(rotationRadians);
+ float y = distance * (float)Math.Sin(rotationFRadians) * (float)Math.Sin(rotationRadians);
+ float z = distance * (float)Math.Cos(rotationFRadians);
+
+ return new PointF3D(x, y, z);
+ }
+ public bool IsFaceVisibleToCamera(AreaViewModel area, PointF3D cameraPosition)
+ {
+
+ //姝ｉ潰鏄�2锛屽彸闈㈡槸1锛屽乏闈㈡槸3锛岃儗闈㈡槸4
+ //Rotation涓�0鏃讹紝鍙樉绀烘闈紝Rotation涓�90鏃讹紝鍙樉绀哄彸闈紝Rotation涓�180鏃讹紝鍙樉绀鸿儗闈紝Rotation涓�270鏃讹紝鍙樉绀哄乏闈�
+ int delta = 5;
+ bool flag = false;
+ switch (area.Name)
+ {
+ case "宸�":
+ //Rotation涓�0~180鏃舵樉绀�
+ if (RotationF<=90-delta && Rotation >= 0 + delta && Rotation <= 180 - delta)
+ flag = true;
+ break;
+ case "鍓�":
+ //Rotation涓�0~180鏃舵樉绀�
+ if (RotationF <= 90 - delta && Rotation >= -90 + delta && Rotation <= 90 - delta)
+ flag = true;
+ break;
+ case "鍙�":
+ //Rotation涓�0~180鏃舵樉绀�
+ if (RotationF <= 90 - delta && Rotation >= -180 + delta && Rotation <= 0 - delta)
+ flag = true;
+ break;
+ case "鍚�":
+ //Rotation涓�0~180鏃舵樉绀�
+ if (RotationF <= 90 - delta && ((Rotation >= 90 + delta && Rotation<=180)||( Rotation>=-180 && Rotation <= -90 - delta)))
+ flag = true;
+ break;
+ case "涓�":
+ if (RotationF >= 0 + delta)
+ flag = true;
+ break;
+ case "涓�":
+ if (RotationF <= 0 - delta)
+ flag = true;
+ break;
+ }
+ return flag;
+
+ var faceVertices = area.InnerNodes;
+ if (faceVertices.Count < 3) return false;
+ PointF3D faceVertexA = faceVertices[0].Position3D;
+ PointF3D faceVertexB = faceVertices[1].Position3D;
+ PointF3D faceVertexC = faceVertices[2].Position3D;
+
+ // 璁＄畻娉曞悜閲�
+ PointF3D AB = faceVertexB - faceVertexA;
+ PointF3D AC = faceVertexC - faceVertexA;
+ PointF3D normal = AB ^ AC;
+
+ // 璁＄畻浠庣浉鏈轰綅缃埌闈㈢殑鍚戦噺
+ PointF3D PD = faceVertexA - cameraPosition;
+
+ // 璁＄畻鐐圭Н
+ float dotProduct = normal * PD;
+
+ // 鍒ゆ柇闈㈡槸鍚︽湞鍚戠浉鏈�
+ bool isFacingCamera = dotProduct > 0;
+ return isFacingCamera;
+ }
+
+
+ #endregion
#region 鍒ゆ柇鍙鎬�
private float Get_dist(PointF A, PointF B)
--
Gitblit v1.9.3