WilJoey

QGIS python console

2011-01-21T11:46:00.003+08:00

參考API
http://www.qgis.org/api/

取得圖上的範圍坐標
qgis.utils.iface.mapCanvas().extent().toString()

resolution
qgis.utils.iface.mapCanvas().mapUnitsPerPixel()

FireFox 更新至3.6 後滑鼠右鍵失效

2010-05-21T15:59:00.003+08:00

原先使用event.stopPropagation() 可防止在FireFox 頁面上點擊右鍵時出現預設的右鍵選單,
但當FireFox 更新到3.6.3版之後, 發現點擊右鍵仍會出現選單
上網查了一些資料以及經過一番測試後, 加上event.preventDefault() 即可解決

參考資源

Windows 7 無法開啟localhost

2010-04-01T13:40:00.002+08:00

以系統管理員的身分開啟記事本

修改C:\Windows\System32\drivers\etc 資料夾下的hosts 檔案

將
# 127.0.0.1 localhost
這一行的註解拿掉即可

GeoCoding HttpWebRequest

2009-12-23T14:55:00.000+08:00

string url = "http://geowebgaej.appspot.com/webService/GeoCoding";
string data = "TestAccount

{0}

";
string postData = string.Format(data, TextBox1.Text);

HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(url);
myHttpWebRequest.AllowWriteStreamBuffering = false;
myHttpWebRequest.Method = "POST";
UTF8Encoding encjavascript:void(0)odedData = new UTF8Encoding();
byte[] byteArray = encodedData.GetBytes(postData);
myHttpWebRequest.ContentType = "application/x-www-form-urlencoded";
myHttpWebRequest.ContentLength = byteArray.Length;
Stream newStream = myHttpWebRequest.GetRequestStream();
newStream.Write(byteArray, 0, byteArray.Length);
newStream.Close();
HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();
StreamReader sr = new StreamReader(myHttpWebResponse.GetResponseStream(), System.Text.Encoding.UTF8);
TextBox2.Text = sr.ReadToEnd();
sr.Close();

Virtual PC 安裝 Ubuntu 9 server

2009-07-01T10:31:00.003+08:00

使用Virtual PC 2007 安裝 Ubuntu 時，一開始就出現問題 [end trace 4eaa2a86a8e2da22]，
解決的方式如下（我安裝的是Ubuntu server 9.04 版本）：
在設定畫面下按F6，然後直接按下Esc，這時游標會直接focus在畫面下方的設定參數上，將"quiet splash --"字串刪除，並輸入"vga=791 noreplace-paravirt"替代，按下Enter鍵開始安裝。

原始參考資料：Installing Ubuntu 9.04 on Microsoft Virtual PC 2007 SP1

login

2008-05-19T13:56:00.000+08:00

if (HttpContext.Current.User.Identity.IsAuthenticated) { loginLab11.Visible = true; UCO.Users_UCO uco = new UCO.Users_UCO(); if(uco.IsManager(HttpContext.Current.User.Identity.Name)) { Label1.Visible = true; Label2.Visible = true; lkbManageSystem.Visible = true; lkbRegister.Visible = false; lkbLogin.Visible = false; Label3.Visible = false; } else { Label1.Visible = false; Label2.Visible = false; lkbManageSystem.Visible = false; lkbRegister.Visible = false; lkbLogin.Visible = false; Label3.Visible = false; } } else { //Response.Write("abc"); lkbRegister.Visible = true; lkbLogin.Visible = true; Label3.Visible = true; loginLab11.Visible = false; Label1.Visible = false; Label2.Visible = false; lkbManageSystem.Visible = false; }

創意公用授權條款

2008-01-11T09:05:00.000+08:00

創意公用授權條款，它主要提供了幾個不同的授權選項讓創作者選擇：

是否需要提及原作者 (Attribution) ？
是否不允許商業使用 (Noncommercial) ？
是否不允許衍生著作 (No Derivative Works) ？
衍生著作是否需要使用一模一樣的授權條款 (Share Alike) ？

再經過排列組合之後，總共就產生了 11 種不同的授權條款。

資料來源:http://mtbook.net/mtbook_cc.html

sharpmap rendermap

2008-01-08T00:18:00.000+08:00

SharpMap.Map myMap;
private void button2_Click(object sender, EventArgs e)
{
myMap = new SharpMap.Map(new Size(400, 300));
myMap.MinimumZoom = 100; //Minimum zoom allowed
myMap.BackColor = Color.White; //Set background
myMap.Center = new SharpMap.Geometries.Point(216091, 2671943); //Set center of map
myMap.Zoom = 50000; //Set zoom level
myMap.Size = new System.Drawing.Size(600, 600); //Set output size

//add shapefile layer
SharpMap.Layers.VectorLayer layWorld = new SharpMap.Layers.VectorLayer("World");
//Specifing true will save the spatial index to a file which will make it load quicker the next time
layWorld.DataSource = new SharpMap.Data.Providers.ShapeFile(@"D:\WilJoey\TaiwanData(67)\tccRoad.shp", true);
myMap.Layers.Add(layWorld);
myMap.ZoomToExtents();

//Render the map
System.Drawing.Image imgMap = myMap.GetMap();
this.pictureBox1.Image = imgMap;
}

open GIS

2008-01-01T22:45:00.000+08:00

林峰田--開放式地理資訊系統

proj.4--taiwan example

DotNetNuke Urlrewrite

2007-12-07T11:18:00.002+08:00

This setting can be changed by logging in as a super user (Host user),going to Host Settings -- Advance Settings -- Other Settings. You will see the checkbox there for "Use Friendly Urls".

http://www.webdeveloper.com/forum/showthread.php?t=110183

script標籤的onload事件

2007-11-25T22:55:00.000+08:00

在firefox中觸發的是onload事件，IE則是onreadystatechange

var o=document.createElement("script")
o.src="abc.js"
o[document.all?"onreadystatechange":"onload"]=function(){
//put your code here
}
document.body.appendChild(o)
o=null

http://www.ooso.net/index.php/archives/312

http://www.phpied.com/javascript-include-ready-onload/

http://www.phpied.com/javascript-include-ready-onload/

http://blog.roodo.com/rocksaying/archives/2716520.html

ASP.NET 控制項和網頁可及性

2007-11-24T02:26:00.000+08:00

http://msdn2.microsoft.com/zh-tw/library/ms227996(VS.80).aspx