/// <summary>
/// 创建数据集
/// Create the dataset
/// </summary>
public Boolean CreateDataset(Datasource datasource, DatasetType datasetType, String datasetName)
{
Boolean result = false;
if (datasource == null)
{
return(result);
}
// 首先要判断输入的名字是否可用
// Judge that whether the input name is usable or not
if (!datasource.Datasets.IsAvailableDatasetName(datasetName))
{
MessageBox.Show($"名称为{datasetName}的数据集已存在");
return(result);
}
Datasets datasets = datasource.Datasets;
DatasetVectorInfo vectorInfo = new DatasetVectorInfo();
vectorInfo.Name = datasetName;
try
{
// Point等为Vector类型，类型是一样的，可以统一处理
// Data such as Point,Line,etc can be operated as the same method as they are all vector type
switch (datasetType)
{
case DatasetType.Point:
case DatasetType.Line:
case DatasetType.CAD:
case DatasetType.Region:
case DatasetType.Text:
case DatasetType.Tabular:
{
vectorInfo.Type = datasetType;
if (datasets.Create(vectorInfo) != null)
{
result = true;
}
}
break;
case DatasetType.Grid:
{
DatasetGridInfo datasetGridInfo = new DatasetGridInfo();
datasetGridInfo.Name = datasetName;
datasetGridInfo.Height = 200;
datasetGridInfo.Width = 200;
datasetGridInfo.NoValue = 1.0;
datasetGridInfo.PixelFormat = SuperMap.Data.PixelFormat.Single;
datasetGridInfo.EncodeType = EncodeType.LZW;
if (datasets.Create(datasetGridInfo) != null)
{
result = true;
}
}
break;
case DatasetType.Image:
{
DatasetImageInfo datasetImageInfo = new DatasetImageInfo();
datasetImageInfo.Name = datasetName;
datasetImageInfo.BlockSizeOption = BlockSizeOption.BS_128;
datasetImageInfo.Height = 200;
datasetImageInfo.Width = 200;
//datasetImageInfo.Palette = Colors.MakeRandom(10);
datasetImageInfo.EncodeType = EncodeType.None;
if (datasets.Create(datasetImageInfo) != null)
{
result = true;
}
}
break;
default:
break;
}
}
catch (Exception ex)
{
Trace.WriteLine(ex.Message);
}
return(result);
}
/// <summary>
/// 拷贝构造函数。
/// </summary>
/// <param name="datasetGridInfo">栅格数据集对象。</param>
/// <exception cref="ArgumentNullException">当栅格数据集信息对象为 Null 时抛出异常。</exception>
public DatasetGridInfo(DatasetGridInfo datasetGridInfo)
: base(datasetGridInfo)
{
if (datasetGridInfo == null) throw new ArgumentNullException("datasetGridInfo", Resources.ArgumentIsNotNull);
this.BlockSize = datasetGridInfo.BlockSize;
this.Height = datasetGridInfo.Height;
this.MaxValue = datasetGridInfo.MaxValue;
this.MinValue = datasetGridInfo.MinValue;
this.NoValue = datasetGridInfo.NoValue;
this.PixelFormat = datasetGridInfo.PixelFormat;
this.Width = datasetGridInfo.Width;
}
public Boolean CreateDataset(DatasetType datasetType, String datasetName)
{
Boolean result = false;
if (m_datasource == null)
{
return(result);
}
// 首先要判断输入的名字是否可用
if (!m_datasource.Datasets.IsAvailableDatasetName(datasetName))
{
MessageBox.Show("该名字已经存在或不合法");
return(result);
}
Datasets datasets = m_datasource.Datasets;
DatasetVectorInfo vectorInfo = new DatasetVectorInfo();
vectorInfo.Name = datasetName;
try
{
// Point等为Vector类型，类型是一样的，可以统一处理
switch (datasetType)
{
case DatasetType.Point:
case DatasetType.Line:
case DatasetType.CAD:
case DatasetType.Region:
case DatasetType.Text:
case DatasetType.Tabular:
{
vectorInfo.Type = datasetType;
if (datasets.Create(vectorInfo) != null)
{
result = true;
}
}
break;
case DatasetType.Grid:
{
DatasetGridInfo datasetGridInfo = new DatasetGridInfo();
datasetGridInfo.Name = datasetName;
datasetGridInfo.BlockSize = 125;
datasetGridInfo.Height = 200;
datasetGridInfo.Width = 200;
datasetGridInfo.NoValue = 1.0;
datasetGridInfo.PixelFormat = PixelFormat.Single;
datasetGridInfo.EncodeType = EncodeType.LZW;
if (datasets.Create(datasetGridInfo) != null)
{
result = true;
}
}
break;
case DatasetType.Image:
{
DatasetImageInfo datasetImageInfo = new DatasetImageInfo();
datasetImageInfo.Name = datasetName;
datasetImageInfo.Height = 200;
datasetImageInfo.Width = 200;
datasetImageInfo.Palette = Colors.MakeRandom(10);
datasetImageInfo.EncodeType = EncodeType.None;
if (datasets.Create(datasetImageInfo) != null)
{
result = true;
}
}
break;
default:
break;
}
}
catch (Exception ex)
{
Trace.WriteLine(ex.Message);
}
return(result);
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
Dictionary<string, object> datasetInfoValues = serializer.Deserialize<Dictionary<string, object>>(reader);
if (datasetInfoValues == null) return null;
DatasetInfo datasetInfo = null;
if (datasetInfoValues.ContainsKey("recordCount"))
{
datasetInfo = new DatasetVectorInfo();
DatasetVectorInfo datasetVectorInfo = datasetInfo as DatasetVectorInfo;
int recordCount = 0;
if (datasetInfoValues.ContainsKey("recordCount") && datasetInfoValues["recordCount"] != null)
{
recordCount = int.Parse(datasetInfoValues["recordCount"].ToString());
}
datasetVectorInfo.RecordCount = recordCount;
bool isFileCache = false;
if (datasetInfoValues.ContainsKey("isFileCache") && datasetInfoValues["isFileCache"] != null)
{
isFileCache = bool.Parse(datasetInfoValues["isFileCache"].ToString());
}
datasetVectorInfo.IsFileCache = isFileCache;
Charset charset = Charset.ANSI;
if (datasetInfoValues.ContainsKey("charset") && datasetInfoValues["charset"] != null)
{
charset = (Charset)Enum.Parse(typeof(Charset), datasetInfoValues["charset"].ToString(), false);
}
datasetVectorInfo.Charset = charset;
}
else if (datasetInfoValues.ContainsKey("isMultiBand"))
{
datasetInfo = new DatasetImageInfo();
DatasetImageInfo datasetImageInfo = datasetInfo as DatasetImageInfo;
int blockSize = 0;
if (datasetInfoValues.ContainsKey("blockSize") && datasetInfoValues["blockSize"] != null)
{
blockSize = int.Parse(datasetInfoValues["blockSize"].ToString());
}
datasetImageInfo.BlockSize = blockSize;
int height = 0;
if (datasetInfoValues.ContainsKey("height") && datasetInfoValues["height"] != null)
{
height = int.Parse(datasetInfoValues["height"].ToString());
}
datasetImageInfo.Height = height;
bool isMultiBand = false;
if (datasetInfoValues.ContainsKey("isMultiBand") && datasetInfoValues["isMultiBand"] != null)
{
isMultiBand = bool.Parse(datasetInfoValues["isMultiBand"].ToString());
}
datasetImageInfo.IsMultiBand = isMultiBand;
datasetImageInfo.Palette = datasetInfoValues.ContainsKey("palette") && datasetInfoValues["palette"] != null ?
JsonConvert.DeserializeObject<Color[]>(datasetInfoValues["palette"].ToString()) : null;
PixelFormat pixelFormat = PixelFormat.SINGLE;
if (datasetInfoValues.ContainsKey("pixelFormat") && datasetInfoValues["pixelFormat"] != null)
{
pixelFormat = (PixelFormat)Enum.Parse(typeof(PixelFormat), datasetInfoValues["pixelFormat"].ToString(), false);
}
datasetImageInfo.PixelFormat = pixelFormat;
int width = 0;
if (datasetInfoValues.ContainsKey("width") && datasetInfoValues["width"] != null)
{
width = int.Parse(datasetInfoValues["width"].ToString());
}
datasetImageInfo.Width = width;
}
else if (datasetInfoValues.ContainsKey("noValue"))
{
datasetInfo = new DatasetGridInfo();
DatasetGridInfo datasetGridInfo = datasetInfo as DatasetGridInfo;
int blockSize = 0;
if (datasetInfoValues.ContainsKey("blockSize") && datasetInfoValues["blockSize"] != null)
{
blockSize = int.Parse(datasetInfoValues["blockSize"].ToString());
}
datasetGridInfo.BlockSize = blockSize;
int height = 0;
if (datasetInfoValues.ContainsKey("height") && datasetInfoValues["height"] != null)
{
height = int.Parse(datasetInfoValues["height"].ToString());
}
datasetGridInfo.Height = height;
double maxValue = 0.0;
if (datasetInfoValues.ContainsKey("maxValue") && datasetInfoValues["maxValue"] != null)
{
maxValue = double.Parse(datasetInfoValues["maxValue"].ToString());
}
datasetGridInfo.MaxValue = maxValue;
double minValue = 0.0;
if (datasetInfoValues.ContainsKey("minValue") && datasetInfoValues["minValue"] != null)
{
maxValue = double.Parse(datasetInfoValues["minValue"].ToString());
}
datasetGridInfo.MinValue = minValue;
double noValue = 0.0;
if (datasetInfoValues.ContainsKey("noValue") && datasetInfoValues["noValue"] != null)
{
noValue = double.Parse(datasetInfoValues["noValue"].ToString());
}
datasetGridInfo.NoValue = noValue;
PixelFormat pixelFormat = PixelFormat.SINGLE;
if (datasetInfoValues.ContainsKey("pixelFormat") && datasetInfoValues["pixelFormat"] != null)
{
pixelFormat = (PixelFormat)Enum.Parse(typeof(PixelFormat), datasetInfoValues["pixelFormat"].ToString(), false);
}
datasetGridInfo.PixelFormat = pixelFormat;
int width = 0;
if (datasetInfoValues.ContainsKey("width") && datasetInfoValues["width"] != null)
{
width = int.Parse(datasetInfoValues["width"].ToString());
}
datasetGridInfo.Width = width;
}
else
{
datasetInfo = new DatasetInfo();
}
datasetInfo.Bounds = datasetInfoValues.ContainsKey("bounds") && datasetInfoValues["bounds"] != null ?
JsonConvert.DeserializeObject<Rectangle2D>(datasetInfoValues["bounds"].ToString()) : null;
datasetInfo.DataSourceName = datasetInfoValues.ContainsKey("dataSourceName") && datasetInfoValues["dataSourceName"] != null ? datasetInfoValues["dataSourceName"].ToString() : "";
datasetInfo.Description = datasetInfoValues.ContainsKey("description") && datasetInfoValues["description"] != null ? datasetInfoValues["description"].ToString() : "";
EncodeType encodeType = EncodeType.NONE;
if (datasetInfoValues.ContainsKey("encodeType") && datasetInfoValues["encodeType"] != null)
{
encodeType = (EncodeType)Enum.Parse(typeof(EncodeType), datasetInfoValues["encodeType"].ToString(), false);
}
datasetInfo.EncodeType = encodeType;
bool isReadOnly = true;
if (datasetInfoValues.ContainsKey("isReadOnly") && datasetInfoValues["isReadOnly"] != null)
{
isReadOnly = bool.Parse(datasetInfoValues["isReadOnly"].ToString());
}
datasetInfo.IsReadOnly = isReadOnly;
datasetInfo.Name = datasetInfoValues.ContainsKey("name") && datasetInfoValues["name"] != null ? datasetInfoValues["name"].ToString() : "";
datasetInfo.PrjCoordSys = datasetInfoValues.ContainsKey("prjCoordSys") && datasetInfoValues["prjCoordSys"] != null ?
JsonConvert.DeserializeObject<PrjCoordSys>(datasetInfoValues["prjCoordSys"].ToString()) : null;
datasetInfo.TableName = datasetInfoValues.ContainsKey("tableName") && datasetInfoValues["tableName"] != null ?
datasetInfoValues["tableName"].ToString() : "";
DatasetType type = DatasetType.UNDEFINED;
if (datasetInfoValues.ContainsKey("type") && datasetInfoValues["type"] != null)
{
type = (DatasetType)Enum.Parse(typeof(DatasetType), datasetInfoValues["type"].ToString(), false);
}
datasetInfo.Type = type;
return datasetInfo;
}
