public MapImage GetTile(string mapName, TileInfo tileInfo, ImageOutputOption imageOutputOption)
{
int scale = (int)Math.Floor(1 / tileInfo.Scale);
string url = string.Format("{0}/output/cache/{1}_{2}x{3}/{4}/{5}/{6}.png",
this._serviceUrl, mapName, tileInfo.Width, tileInfo.Height, scale, tileInfo.TileIndex.RowIndex, tileInfo.TileIndex.ColIndex);
MapImage mapImage = null;
if (imageOutputOption == null || (imageOutputOption != null && imageOutputOption.ImageReturnType == ImageReturnType.URL))
{
mapImage = new MapImage()
{
ImageUrl = url
};
}
else
{
byte[] imageData = SynchHttpRequest.GetRequestBytes(url);
mapImage = new MapImage()
{
ImageData = imageData
};
}
return mapImage;
}
/// <summary>
/// 根据查询结果资源ID，获取查询结果高亮图片，图片只支持PNG格式。
/// </summary>
/// <param name="mapName">地图名称。</param>
/// <param name="queryResultID">查询结果资源ID。</param>
/// <param name="style">高亮风格设置。</param>
/// <param name="mapParameter">地图参数。</param>
/// <param name="imageOutputOption">图片输出设置。</param>
/// <returns>高亮图片对象。</returns>
public MapImage GetHighlightImage(string mapName, string queryResultID, Style style, MapParameter mapParameter, ImageOutputOption imageOutputOption)
{
if (string.IsNullOrEmpty(mapName)) throw new ArgumentNullException("mapName", Resources.ArgumentIsNotNull);
if (string.IsNullOrEmpty(queryResultID)) throw new ArgumentNullException("queryResultID", Resources.ArgumentIsNotNull);
string strImageFormat = "png";
bool returnUrl = false;
if (imageOutputOption != null)
{
strImageFormat = imageOutputOption.ImageOutputFormat.ToString().ToLower();
if (imageOutputOption.ImageReturnType == ImageReturnType.URL)
{
returnUrl = true;
}
}
string url = string.Format("{0}/maps/{1}/highlightImage.{2}?", this._serviceUrl, HttpUtility.UrlEncode(mapName), strImageFormat);
StringBuilder requestParamBuilder = new StringBuilder();
requestParamBuilder.Append(string.Format("queryResultID={0}&", queryResultID));
requestParamBuilder.Append(string.Format("style={0}&", JsonConvert.SerializeObject(style)));
if (imageOutputOption != null)
{
requestParamBuilder.Append(string.Format("transparent={0}&", imageOutputOption.Transparent));
}
if (mapParameter != null)
{
requestParamBuilder.Append(GetMapRequestByMapParameter(mapName, mapParameter, true, false, false, false));
}
url = url + requestParamBuilder.ToString();
MapImage mapImage = new MapImage();
if (returnUrl)
{
mapImage.ImageUrl = url;
}
else
{
mapImage.ImageData = SynchHttpRequest.GetRequestBytes(url);
}
return mapImage;
}
/// <summary>
/// 根据地图参数、图片输出设置获取地图图片。
/// </summary>
/// <param name="mapName">地图名。【必设参数】</param>
/// <param name="mapParameter">地图参数。【必设参数】</param>
/// <param name="imageOutputOption">图片输出设置。</param>
/// <returns>所获取的地图图片对象。</returns>
public MapImage GetMapImage(string mapName, MapParameter mapParameter, ImageOutputOption imageOutputOption, bool returnMapParameter)
{
string strImageFormat = "png";
bool returnUrl = false;
if (imageOutputOption != null)
{
strImageFormat = imageOutputOption.ImageOutputFormat.ToString().ToLower();
if (returnMapParameter)
{
strImageFormat = "json";
}
if (imageOutputOption.ImageReturnType == ImageReturnType.URL)
{
returnUrl = true;
}
}
string url = string.Format("{0}/maps/{1}/image.{2}?", this._serviceUrl, HttpUtility.UrlEncode(mapName), strImageFormat);
StringBuilder requestParamBuilder = new StringBuilder();
if (imageOutputOption != null)
{
requestParamBuilder.Append(string.Format("transparent={0}&", imageOutputOption.Transparent));
}
if (mapParameter != null)
{
requestParamBuilder.Append(this.GetMapRequestByMapParameter(mapName, mapParameter, false, false, false, false));
}
MapImage mapImage = new MapImage();
url = url + requestParamBuilder.ToString(); //用GET请求发送。
if (returnMapParameter)
{
string requetResponse = SynchHttpRequest.GetRequestString(url, HttpRequestMethod.GET, "");
Dictionary<string, object> jsonItems = JsonConvert.DeserializeObject<Dictionary<string, object>>(requetResponse);
mapImage.ImageUrl = jsonItems["imageUrl"].ToString();
mapImage.MapParameter = JsonConvert.DeserializeObject<MapParameter>(JsonConvert.SerializeObject(jsonItems["mapParam"]));
return mapImage;
}
else if (returnUrl)
{
mapImage.ImageUrl = url;
}
else
{
mapImage.ImageData = SynchHttpRequest.GetRequestBytes(url);
}
return mapImage;
}
/// <summary>
/// 根据地图分块信息和地图参数设置，获取格网图片。
/// </summary>
/// <param name="mapName">地图名。【必设参数】</param>
/// <param name="tileInfo">地图分块信息。【必设参数】</param>
/// <param name="imageOutputOption">图片输出设置。</param>
/// <param name="mapParameter">地图参数。</param>
/// <returns>所获取的格网图片信息。</returns>
public MapImage GetTile(string mapName, TileInfo tileInfo, ImageOutputOption imageOutputOption, MapParameter mapParameter)
{
string strImageFormat = "png";
bool returnUrl = false;
if (imageOutputOption != null)
{
strImageFormat = imageOutputOption.ImageOutputFormat.ToString().ToLower();
if (imageOutputOption.ImageReturnType == ImageReturnType.URL)
{
returnUrl = true;
}
}
if (tileInfo == null || tileInfo.TileIndex == null)
{
return null;
}
string url = string.Format("{0}/maps/{1}/tileImage.{2}?", this._serviceUrl, HttpUtility.UrlEncode(mapName), strImageFormat);
StringBuilder requestParamBuilder = new StringBuilder();
requestParamBuilder.Append(string.Format("scale={0}&x={1}&y={2}&width={3}&height={4}", tileInfo.Scale,
tileInfo.TileIndex.ColIndex, tileInfo.TileIndex.RowIndex, tileInfo.Width, tileInfo.Height));
if (imageOutputOption != null)
{
requestParamBuilder.Append(string.Format("&transparent={0}&", imageOutputOption.Transparent));
}
if (mapParameter != null)
{
requestParamBuilder.Append(this.GetMapRequestByMapParameter(mapName, mapParameter, false, true, true, true));
}
//进行重定向
MapImage mapImage = new MapImage();
url = url + requestParamBuilder.ToString();
if (returnUrl)
{
mapImage.ImageUrl = url;
}
else
{
mapImage.ImageData = SynchHttpRequest.GetRequestBytes(url);
}
return mapImage;
}
