Client配置
1. For LandSAT
你可以参考WorldWind/bin/Debug/Config/Earth/@images.tmp中landsat的结构和landsat下载数据中esta.xml中的相关参数，自行添加client配置文件或修改现有配置文件。请将配置文件放在WorldWind/bin/Debug/Config/Earth/目录下。
需要注意的是请选择WMSAccessor(而不是ImageTileService)作为ImageAccessor的子节点。
<ImageAccessor>
<LevelZeroTileSizeDegrees>2.25</LevelZeroTileSizeDegrees>
<NumberLevels>2</NumberLevels>
<TextureSizePixels>512</TextureSizePixels>
<ImageFileExtension>png</ImageFileExtension>
<WMSAccessor>
<ServerGetMapUrl>http://10.11.5.23:8085/wms</ServerGetMapUrl>
<ServiceName>OGC:WMS</ServiceName>
<Version>1.3.0</Version>
<ImageFormat>image/png</ImageFormat>
<WMSLayerName>esat</WMSLayerName>
<UseTransparency>true</UseTransparency>
<ServerLogoFilePath>Data/Icons/Interface/earth-western.png</ServerLogoFilePath>
</WMSAccessor>
</ImageAccessor>
整个配置文件示例如下：
<?xml version="1.0" encoding="UTF-8"?>
<LayerSet Name="Local WMS" ShowOnlyOneLayer="false" ShowAtStartup="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="LayerSet.xsd">
<ChildLayerSet Name="Imagery" ShowOnlyOneLayer="false" ShowAtStartup="true">
<QuadTileSet ShowAtStartup="true">
<Name>LandSAT</Name>
<DistanceAboveSurface>0</DistanceAboveSurface>
<BoundingBox>
<North>
<Value>84.0</Value>
</North>
<South>
<Value>-60.0</Value>
</South>
<West>
<Value>-180.0</Value>
</West>
<East>
<Value>180.0</Value>
</East>
</BoundingBox>
<TerrainMapped>true</TerrainMapped>
<ImageAccessor>
<LevelZeroTileSizeDegrees>2.25</LevelZeroTileSizeDegrees>
<NumberLevels>2</NumberLevels>
<TextureSizePixels>512</TextureSizePixels>
<ImageFileExtension>png</ImageFileExtension>
<WMSAccessor>
<ServerGetMapUrl>http://10.11.5.23:8085/wms</ServerGetMapUrl>
<ServiceName>OGC:WMS</ServiceName>
<Version>1.3.0</Version>
<ImageFormat>image/png</ImageFormat>
<WMSLayerName>esat</WMSLayerName>
<UseTransparency>true</UseTransparency>
<ServerLogoFilePath>Data/Icons/Interface/earth-western.png</ServerLogoFilePath>
</WMSAccessor>
</ImageAccessor>
<ExtendedInformation>
<ToolBarImage>Data/Icons/Interface/nlt-landsat-pseudo.png</ToolBarImage>
</ExtendedInformation>
</QuadTileSet>
</ChildLayerSet>
</LayerSet>
2. For SRTM
World wind c#版目前是不支持通过wms的方式访问SRTM的。因此
? 修改代码是的ww能够支持wms的访问方式。
? 修改client配置文件。
修改代码
? 修改TerrainTileServic
添加成员变量及属性
protected string m_serverType;
protected bool m_isWMS;
protected bool m_isCompressed;
public string ServerType
{
get
{
return m_serverType;
}
}
public bool IsWMS
{
get
{
return m_isWMS;
}
}
public bool IsCompressed
{
get
{
return m_isCompressed;
}
}
修改构造函数
public TerrainTileService(
string serverUrl,
string dataSet,
double levelZeroTileSizeDegrees,
int samplesPerTile,
string fileExtension,
int numberLevels,
string terrainTileDirectory,
TimeSpan terrainTileRetryInterval,
string dataType,
string serverType,
string compressionType)
{
m_serverUrl = serverUrl;
m_dataSet = dataSet;
m_levelZeroTileSizeDegrees = levelZeroTileSizeDegrees;
m_samplesPerTile = samplesPerTile;
m_numberLevels = numberLevels;
m_fileExtension = fileExtension.Replace(".","");
m_terrainTileDirectory = terrainTileDirectory;
if(!Directory.Exists(m_terrainTileDirectory))
Directory.CreateDirectory(m_terrainTileDirectory);
m_terrainTileRetryInterval = terrainTileRetryInterval;
m_dataType = dataType;
m_serverType = serverType;
m_isWMS = m_serverType==null || !m_serverType.Contains("WMS") ? false : true;
m_isCompressed = compressionType == null || compressionType.Length == 0 ? false : true;
}
? 修改TerrainDownloadRequest
public TerrainDownloadRequest(TerrainTile tile, TerrainTileService owner, int row, int col, int targetLevel) : base(owner)
{
TerrainTile = tile;
if (owner.IsWMS)
{
download.Url = String.Format(CultureInfo.InvariantCulture,
"{0}?request=GetMap&layers={1}&level={2}&bbox={3},{4},{5},{6}&Format=image/{7}&width=150&height=150&srs=EPSG:4326&Version=1.30&styles=",
owner.ServerUrl,
owner.DataSet,
targetLevel,tile.West,tile.South,tile.East,tile.North,owner.FileExtension);
}
else
{
download.Url = String.Format(CultureInfo.InvariantCulture,
"{0}?T={1}&L={2}&X={3}&Y={4}",
owner.ServerUrl,
owner.DataSet,
targetLevel, col, row);
}
}
protected void ProcessFile()
{
if (download.ContentType == ContentTypeZip)
{
……
}
else if (download.ContentType == ContentType7z || download.ContentType == ContentTypeXCompressed)
{
……
}
else if(download.SavedFilePath.EndsWith(".tmp"))
{
String fileName = download.SavedFilePath.Substring(0,download.SavedFilePath.Length-4);
if (!File.Exists(download.SavedFilePath))
{
return;
}
if (File.Exists(fileName))
{
File.Delete(fileName);
}
File.Move(download.SavedFilePath, fileName);
}
}
? 修改ConfigurationLoader:getTerrainAccessorsFromXPathNodeIterator及其他调用TerrainTileService的地方
compressionType = getInnerTextFromFirstChild(tileServiceIter.Current.Select("CompressonType"));
serverType = getInnerTextFromFirstChild(tileServiceIter.Current.Select("ServerType"));
TerrainTileService tts = new TerrainTileService(
serverUrl,
dataSetName,
levelZeroTileSizeDegrees,
(int)samplesPerTile,
fileExtension,
(int)numberLevels,
Path.Combine(cacheDirectory, terrainAccessorName),
World.Settings.TerrainTileRetryInterval,
dataFormat,
serverType,
compressionType);
修改client配置文件
Srtm的设置是通过WorldWind/bin/Debug/Config/Earth.xml来配置的。
新增<ServerType></ServerType>节点指定server的类型，如果是wms的，直接填写wms，否则可以不填。
整个配置文件示例如下：
<?xml version="1.0" encoding="UTF-8"?>
<World Name="Earth" EquatorialRadius="6378137.0" LayerDirectory="Earth" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="WorldXmlDescriptor.xsd">
<TerrainAccessor Name="nasa SRTM30">
<TerrainTileService>
<ServerUrl>http://10.11.5.23:8085/wms</ServerUrl>
<DataSetName>srtm30</DataSetName>
<LevelZeroTileSizeDegrees>20</LevelZeroTileSizeDegrees>
<NumberLevels>12</NumberLevels>
<SamplesPerTile>150</SamplesPerTile>
<DataFormat>Int16</DataFormat>
<FileExtension>bil</FileExtension>
<CompressonType></CompressonType>
<ServerType>WMS</ServerType>
</TerrainTileService>
<LatLonBoundingBox>
<North>
<Value>90.0</Value>
</North>
<South>