武警部隊勤務指揮 三維電子沙盤開發教程 第七課 利用WPF建立3d gis數字地球(非axhost方式)
影粒子:粒子應用
或者flash一類的工具生成如下的PNG序列:
然後下面利 用https://blog.csdn.net/xtgmd168/article/details/85264680 中所介紹的方法。將它變成一個簡單的粒子顯示元素:
新建一個UserControl完成序列PNG的動態顯示:
AmiImage.xaml
<UserControl x:Class="Teach3DGIS.AmiImage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:Teach3DGIS"
mc:Ignorable="d"
Height="450" Width="800">
</UserControl>
AmiImage.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO;
namespace Teach3DGIS
{
/// <summary>
/// AmiImage.xaml 的交互邏輯
/// </summary>
public partial class AmiImage : UserControl
{
public AmiImage()
{
InitializeComponent();
}
private List<string> FileList = new List<string>();
private System.Windows.Threading.DispatcherTimer ATimer;
private int index = 0;
public AmiImage(string Path)
{
InitializeComponent();
DirectoryInfo v1 = new DirectoryInfo(Path);
foreach(FileInfo V2 in v1.GetFiles("*.png"))
{
FileList.Add(V2.FullName);
}
ATimer = new System.Windows.Threading.DispatcherTimer();
ATimer.Tick += ATimer_Tick;
ATimer.Interval = new TimeSpan(0, 0, 0, 0,5);
ATimer.Start();
}
private void ATimer_Tick(object sender, EventArgs e)
{
this.Background = new ImageBrush(new BitmapImage(new Uri(FileList[index])));
index++;
if (index == FileList.Count - 1)
index = 0;
}
}
}
主程序中代碼如下:
private void Button_Click_9(object sender, RoutedEventArgs e)
{
gis3d.GetJWEvent += Gis3d_GetJWEvent1;
gis3d.State = GisLib.WindowsMT.GisState.獲取經緯度;
}
private void Gis3d_GetJWEvent1(System.Windows.Media.Media3D.Point3D value)
{
gis3d.GetJWEvent -= Gis3d_GetJWEvent;
gis3d.State = GisLib.WindowsMT.GisState.漫遊;
AmiImage y1 = new AmiImage(AppDomain.CurrentDomain.BaseDirectory + "a");
NewGisBiao.M3D.UserGisUI3dObject2 JuLiSechBiao = new NewGisBiao.M3D.UserGisUI3dObject2(); //新建一個承載UI對象的東東
JuLiSechBiao.PareantEarth = (NewGisBiao.Base.GISInterfaseForBiao)IniRead.IniReadWrite.MPareant;//設置它的GIS球對象
JuLiSechBiao.Manage = IniRead.IniReadWrite.BiaoManage;//設置它的標號管理器
JuLiSechBiao.MaxZoom = 9;//最大顯示層,當小於9層的時候不顯示
JuLiSechBiao.MUIValue = y1;//UI對象
JuLiSechBiao.DHi = 0.01;//相對於地形的高度
JuLiSechBiao.ZScal = 0.6;//相對縮放
JuLiSechBiao.Scal.ScaleX = 1; //固定東東
JuLiSechBiao.Scal.ScaleY = 1;
JuLiSechBiao.Scal.ScaleZ = 1;
JuLiSechBiao.AutoScal = true;//是否自動縮放,不管在哪一層都是一樣大
JuLiSechBiao.AutoAngle = true;//是否自動角度,使終對着攝像機
JuLiSechBiao.CenterType = JunBiao.CenteType.左下角;//中心點類型
IniRead.IniReadWrite.BiaoManage.AddJunBiao(JuLiSechBiao);//增加到軍標管理對象中。也可以不加
JuLiSechBiao.MWidth = 250;//三維面片的大小
JuLiSechBiao.MHeight = 150;
JuLiSechBiao.MRX = 90;
if (IniRead.IniReadWrite.MPareant is MTGIS3D) //手動刷新一下自動角度。。。bug
{
((MTGIS3D)IniRead.IniReadWrite.MPareant).TextAxisAngleX.Angle += 0.001;
((MTGIS3D)IniRead.IniReadWrite.MPareant).TextAxisAngleX.Angle -= 0.001;
}
JuLiSechBiao.Center = new Point(value.X, value.Y);//設置中心點
JuLiSechBiao.ISShow = true;//顯示
}
效果如下:
當然有一些效果是平貼在地上的,如光圈效果等:如下:
這裏很明顯就是用了兩個對象,兩個UI。其中一個UI的autoangle爲false再通過調整 MRX MRY 設置一個死的角度就成上面這樣了。效果還不錯吧。WPF可以讓我們盡情的發揮UI的優勢。
http://www.chinamtouch.com QQ:40140203
作者:xtgmd168 發表於 2018/12/27 10:46:48 原文鏈接 https://blog.csdn.net/xtgmd168/article/details/85273270