7.2.8 GM_DBUtil
(1)声明
cs
public static class GM_DBUtil
(2)方法
|--------------------------|-------------------------------------|
| 方法 | 描述 |
| DBGetTableList | 获取指定空间数据库中的表列表 |
| DBIsDatabaseFile | 指示输入文件是否为数据库(Esri地理数据库、Spatialite等) |
| DBMakeConnectionString | 从输入连接参数创建连接字符串 |
| DBSelectExportTable | 显示对话框,允许用户选择要导出数据的表 |
| DBSelectTable | 显示对话框,允许用户选择一个或多个要加载的表 |
| DBTableList_Free | 释放与表列表关联的内存 |
| DBTableList_GetCount | 获取表列表中的表数 |
| DBTableList_GetTableName | 获取指定索引处的表名 |
| DBTestConnection | 测试输入的连接字符串,以查看是否可以用于连接到数据库 |
DBGetTableList
cs
public static GM_Error_t32 DBGetTableList(
out IntPtr aTableList, //Table list handle
string aConnectionInfo //Connection string or database file name
)
DBIsDatabaseFile
cs
public static bool DBIsDatabaseFile(
string aFileName //The file name
)
DBMakeConnectionString
cs
public static GM_Error_t32 DBMakeConnectionString(
out string aConnectionStr, //The connection string buffer
uint aBufferLength, //The length of the connection string buffer
GM_DBConnectionParams_t aConnectionParams //The connection parameters
)
DBSelectExportTable
cs
public static GM_Error_t32 DBSelectExportTable(
out string aTable, //Buffer for storing table name
uint aBufferLength, //The length of the table name buffer
out bool aTableExists, //Indicates whether or not the selected table exists
string aConnectionStr //Connection parameter string or database file name
)
DBSelectTable
cs
public static GM_Error_t32 DBSelectTable(
out IntPtr aTableList, //Handle for list of selected table names
string aConnectionStr //Connection parameter string or database file name
)
DBTableList_Free
cs
public static GM_Error_t32 DBTableList_Free(
ref IntPtr aTableList //Table list handle to be freed
)
DBTableList_GetCount
cs
public static GM_Error_t32 DBTableList_GetCount(
out uint aCount, //The number of table names in the list
IntPtr aTableList //Table list handle
)
DBTableList_GetTableName
cs
public static GM_Error_t32 DBTableList_GetTableName(
out string aTableName, //Buffer in which table name will be placed
uint aIndex, //The zero-based index for the table name
IntPtr aTableList //Table list handle
)
DBTestConnection
cs
public static GM_Error_t32 DBTestConnection(
string aConnectionStr //Connection parameter string
)
7.2.9 GM_Exception
(1)声明
cs
public class GM_Exception : Exception
(2)构造函数
cs
public GM_Exception()
public GM_Exception(
string message //Any additional error information that could be gathered
)
public GM_Exception(
GM_Error_t32 error //The GM_Error to be assosicated with this exception
)
public GM_Exception(
string message, //Any additional error information that could be gathered
Exception inner //The Inner Exception
)
public GM_Exception(
GM_Error_t32 error, //The GM_Error to be assosicated with this exception
string message //Any additional error information that could be gathered
)
(3)属性
|-----------|---------------------|
| 属性 | 描述 |
| ErrorCode | 与异常相关的GM_Error Code |
ErrorCode
cs
public GM_Error_t32 ErrorCode { get; }
7.2.10 GM_Export
(1)声明
cs
public static class GM_Export
(2)方法
|--------------------------|----------------------------------------------|
| 方法 | 描述 |
| ExportElevation | 将一个或多个图层导出为新的分块高程文件。 |
| ExportElevationEx | 将一个或多个图层导出为新的分块高程文件。 |
| ExportMapLayoutComponent | 将地图布局组件导出为位图图像文件。 |
| ExportPackage | 将一个或多个图层导出为新的包文件(在WinCE上未实现)。 |
| ExportPDF | 将一个或多个图层导出为新的GeoPDF文件(在WinCE上未实现)。 |
| ExportRaster | 将一个或多个图层导出为新的栅格文件(在WinCE上未实现)。 |
| ExportRasterEx | 将一个或多个图层导出为新的栅格文件(在WinCE上未实现)。 |
| ExportRasterFromBitmap | 将一个或多个图层导出为新的栅格文件(在WinCE上未实现)。 |
| ExportVector | 将一个或多个图层导出为新的矢量文件(在WinCE上未实现)。 |
| ExportVectorList | 将一个或多个图层导出为新的矢量文件(在WinCE上未实现)。 |
| ExportWebFormat | 将一个或多个图层导出为适用于在Web浏览器或其他基于Web的工具中显示的Web格式文件。 |
| SetExportCropAreas | 在导出时设置要使用的裁剪区域。 |
7.2.11 GM_ExportOptsPDF_t
(1)声明
cs
public class GM_ExportOptsPDF_t
(2)构造函数
cs
public GM_ExportOptsPDF_t()
(3)字段
|---------------|--------------------------------------------|
| 方法 | 描述 |
| mBorderColor | 边框线颜色。 |
| mBorderStyle | 边框线样式(如实线、虚线等)。 |
| mBorderWidth | 边框线宽度(以PDF点为单位的像素)。 |
| mDPI | 导出DPI。 |
| mFlags | 导出标志。 |
| mFooterFont | 页脚字体(默认为NULL)。 |
| mFooterStr | 页面页脚(无页脚则为NULL)。 |
| mHeaderFont | 页眉字体(默认为NULL)。 |
| mHeaderStr | 页面页眉(无页眉则为NULL)。 |
| mMarginRect | 边距(以英寸为单位)。 |
| mPageSizeName | 页面大小名称,如"Letter","Legal","A0"等。 |
| mSymbolScale | 点符号缩放因子(0.0将被视为1.0,使用2.0可以将大小加倍,0.5可以减半等)。 |
7.2.12 GM_FindFeatures
(1)声明
cs
public static class GM_FindFeatures
(2)方法
|---------------------|---------------------|
| 方法 | 描述 |
| FindFeaturesInArea | 查找包含在给定区域要素内的要素。 |
| FindNearestAddress | 查找离搜索位置最近的地址。 |
| FindNearestFeatures | 查找与给定像素位置的像素距离内的要素。 |
FindFeaturesInArea
cs
public static GM_Error_t32 FindFeaturesInArea(
GM_LayerList_t aLayerList, //List of layers to search or NULL for all vector layers
GM_FindFlags_t32 aFindFlags, //Flags controlling how the find is performed
GM_AreaFeature_t aAreaToSearch, //Area feature to search (use GM_GetAreaFeature to get from loaded layer)
GM_Projection_t aAreaProj, //Projection of coordinates in area feature (use GM_GetLayerInfo()->mNativeProj to get layer projection)
aResults
out GM_FoundFeatureResults_t aResults, //Results of find operation (use GM_FreeFeatureResultList to free when done)
Object aReserved //Reserved for later use, must be NULL (0)
)
FindNearestAddress
cs
public static GM_Error_t32 FindNearestAddress(
GM_Point_t aSearchPt, //Search location in current view projection (as returned by GM_SetProjection)
GM_LayerList_t aLayerList, //List of layers to search or NULL for all vector layers
out string aAddressStr, //Buffer to hold string for nearest address
uint aMaxAddressLen, //Maximum length of string to store in output
double aMaxDistMeters, //Maximum distance in meters to search around search point
Object aReserved //Reserved for later use, must be NULL (0)
)
FindNearestFeatures
cs
public static GM_Error_t32 FindNearestFeatures(
GM_Point_t aPixelSearchPt, //Search location in pixel coordinates
GM_LayerList_t aLayerList, //List of layers to search or NULL for all vector layers
GM_FindFlags_t32 aFindFlags, //Flags controlling how the find is performed
GM_Rectangle_t aWorldBounds, //World bounds for search space or NULL for last drawn
GM_PixelRect_t aPixelRect, //Pixel bounds for search space or NULL for last drawn
out GM_FoundFeatureCollection_t aNearestFeatures, //List of nearest features (buffer for GM_FoundFeature_t)
uint aMaxFeatures, //Max number of nearest features to find
uint aMaxDistPixels //Max distance in pixels to search
)
7.2.13 GM_FontDef_t
(1)声明
cs
public class GM_FontDef_t
(2)构造函数
cs
public GM_FontDef_t()
(3)方法
|------------------|----------------------------------------|
| 方法 | 描述 |
| ToString() | 返回对象的字符串表示形式 (覆盖了Object.ToString()方法)。 |
| ToString(String) | 返回对象的字符串表示形式。 |
ToString
cs
public override string ToString()
public string ToString(
string theOptions //Additional Font Info: (A) for all, (C) for Color, (F) for Format, (O) for Other
)
(4)操作符
|------------|------------------|
| 操作符 | 描述 |
| Equality | 根据句柄比较两个图层的相等性。 |
| Inequality | 根据句柄比较两个图层的不相等性。 |
Equality
cs
public static bool operator ==(
GM_FontDef_t left, //The Left Layer
GM_FontDef_t right //The Right Layer
)
Inequality
cs
public static bool operator !=(
GM_FontDef_t left, //The Left Layer
GM_FontDef_t right //The Right Layer
)
(5)字段
|------------|----------------------------------------------------|
| 字段 | 描述 |
| mAngle | 逆时针旋转角度(0表示从左到右水平)。 |
| mBgMode | 背景填充模式(不透明或透明)。 |
| mCharset | 字符集(使用OEM_CHARSET(255)获取默认行为)。 |
| mColor | 字体的RGB颜色。 |
| mFaceName | 使用的字体名称。 |
| mFixedHgt | 字体的固定高度(以米为单位)(使用0.0表示正常字号字体)。 |
| mHalo | 围绕文本绘制细边框,以在任何背景上使其可见。 |
| mItalicize | 使用斜体绘制文本。 |
| mPlacement | 标签相对于点要素的放置方式(仅适用于点要素)。 |
| mPointSize | 字体的字号(将mFixedHgt值设置为非零以使用固定高度)。 |
| mReserved2 | 保留,必须为0。 |
| mReserved3 | 保留,必须为0。 |
| mStrikeout | 删除线文本。 |
| mUnderline | 下划线文本。 |
| mWeight | 字体的粗细(使用GM_Constants,如FW_BOLD,FW_THIN,FW_NORMAL等)。 |
7.2.14 GM_FoundFeature_t
(1)声明
cs
public class GM_FoundFeature_t
(2)属性
|-------------------|--------------------|
| 属性 | 描述 |
| mDistance | 距离搜索位置的特征像素距离(只读)。 |
| mFeatureClassType | 要素类别(区域、点、线)(只读)。 |
| mFeatureIndex | 要素在图层中的索引(只读)。 |
| mLayer | 要素所在的图层(只读)。 |
mDistance
cs
public uint mDistance { get; }
mFeatureClassType
cs
public GM_FeatureClassType_t8 mFeatureClassType { get; }
mFeatureIndex
cs
public uint mFeatureIndex { get; }
mLayer
cs
public GM_Layer_t mLayer { get; }
(3)方法
|--------------|--------------------|
| 方法 | 描述 |
| CompareLayer | 将此找到的图层与给定的图层进行比较。 |
CompareLayer
cs
public bool CompareLayer(
GM_Layer_t aLayer //The layer to compare against
)
(4)操作符
|------------|-------------------|
| 操作符 | 描述 |
| Equality | 检查两个找到的要素之间是否相等。 |
| Inequality | 检查两个找到的要素之间是否不相等。 |
Equality
cs
public static bool operator ==(
GM_FoundFeature_t left, //Left side feature to compare
GM_FoundFeature_t right //Right side feature to compare
)
Inequality
cs
public static bool operator !=(
GM_FoundFeature_t left, //Left side feature to compare
GM_FoundFeature_t right //Right side feature to compare
)
7.2.15 GM_FoundFeatureCollection_t
(1)声明
cs
public class GM_FoundFeatureCollection_t
(2)属性
|--------|----------|
| 属性 | 描述 |
| Count | 找到的要素数量。 |
| Item | 找到的要素列表。 |
Count
cs
public int Count { get; }
Item
cs
public GM_FoundFeature_t this[
int index
] { get; }
(3)方法
|----------------|-------------------------------------------|
| 方法 | 描述 |
| GetAreas | 从 FoundFeatureCollection 中获取所有区域要素的列表。 |
| GetLidarPoints | 从 FoundFeatureCollection 中获取所有激光雷达点要素的列表。 |
| GetLines | 从 FoundFeatureCollection 中获取所有线要素的列表。 |
| GetPoints | 从 FoundFeatureCollection 中获取所有点要素的列表。 |
GetAreas
cs
public GM_AreaFeature_t[] GetAreas(
GM_GetFeatureFlags_t32 aFlags = 0 //Flags for the get area feature operation
)
GetLidarPoints
cs
public GM_LidarPoint_t[] GetLidarPoints(
GM_GetFeatureFlags_t32 aFlags = 0 //Flags for the get point feature operation
)
GetLines
cs
public GM_LineFeature_t[] GetLines(
GM_GetFeatureFlags_t32 aFlags = 0 //Flags for the get line feature operation
)
GetPoints
cs
public GM_PointFeature_t[] GetPoints(
GM_GetFeatureFlags_t32 aFlags = 0 //Flags for the get point feature operation
)
7.2.16 GM_FoundFeatureResults_t
(1)声明
cs
public class GM_FoundFeatureResults_t : IDisposable
(2)属性
|---------------|-------------|
| 属性 | 描述 |
| mFeatureCount | 结果列表中的要素数量。 |
mFeatureCount
cs
public ulong mFeatureCount { get; }
(3)方法
|---------|----------|
| 方法 | 描述 |
| Dispose | 释放非托管资源。 |
Dispose
cs
public void Dispose()
(4)字段
|--------------|----------|
| 字段 | 描述 |
| mFeatureList | 找到的要素列表。 |
7.2.17 GM_GPSUtil
(1)声明
cs
public static class GM_GPSUtil
(2)方法
|--------------------------|----------------------------------|
| 方法 | 描述 |
| GPSGetAltitude | 获取当前的GPS海拔高度,如果有效。 |
| GPSGetBearing | 获取当前的GPS方位角,如果有效。 |
| GPSGetFixInfo | 获取当前的GPS定位准确性统计信息。 |
| GPSGetFixType | 获取当前的GPS定位类型。 |
| GPSGetLocation | 获取当前的GPS位置。 |
| GPSGetTime | 以C风格的时间加小数秒的形式获取最后一次GPS定位的UTC时间。 |
| GPSGetVelocity | 获取当前的GPS速度,如果有效。 |
| GPSRenderVessel | 在当前GPS位置将给定大小的GPS船舶渲染到提供的设备上下文中。 |
| GPSStartTrackingNMEAFile | 回放从NMEA日志文件中记录的GPS轨迹。 |
| GPSStartTrackingSerial | 开始跟踪连接到串行端口的GPS设备。 |
| GPSStartTrackingUSB | 开始跟踪连接到USB端口的GPS设备。 |
| GPSStopTracking | 停止跟踪任何已连接的GPS设备。 |
GPSGetAltitude
cs
public static GM_Error_t32 GPSGetAltitude(
out float aAltitude //current GPS altitude in meters
)
GPSGetBearing
cs
public static GM_Error_t32 GPSGetBearing(
out float aBearing //current GPS bearing in radians from due north
)
GPSGetFixInfo
cs
public static GM_Error_t32 GPSGetFixInfo(
out float aHorzPosError, //current horizontal position error in meters (0.0 if unknown)
out float aVertPosError, //current vertical position error in meters (0.0 if unknown)
out float aPDOP, //current position DOP in meters (0.0 if unknown)
out uint aNumSats //number of satellites used in fix (0 if unknown)
)
GPSGetFixType
cs
public static GM_gps_fix_t8 GPSGetFixType()
GPSGetLocation
cs
public static GM_Error_t32 GPSGetLocation(
out GM_Point_t aCurPos, //current GPS location
bool aGetLatLon //retrieve coordinates in lat/lon/WGS84 rather than global coords
)
GPSGetTime
cs
public static GM_Error_t32 GPSGetTime(
out DateTime aFixTime //fix time
)
GPSGetVelocity
cs
public static GM_Error_t32 GPSGetVelocity(
out float aVelocity //current GPS velocity in m/s
)
GPSRenderVessel
cs
public static GM_Error_t32 GPSRenderVessel(
IntPtr aDC, //(HDC) Device context to draw to
GM_Rectangle_t aWorldBounds, //World bounds to convert from or NULL for last drawn
GM_PixelRect_t aPixelRect, //Pixel bounds to convert from or NULL for last drawn
uint aVesselHeight, //The vessel height in pixels
uint aVesselWidth, //The vessel width in pixels
uint aVesselColor //The color to render the vessel in
)
GPSStartTrackingNMEAFile
cs
public static GM_Error_t32 GPSStartTrackingNMEAFile(
string aFilename, //full path to NMEA file to use
GM_gps_nmea_flags_t32 aNmeaFlags, //flags controlling NMEA playback
GM_GPSCallbackFunc aCallbackFunc, //optional callback function
Object aReserved //reserved value (must be NULL)
)
GPSStartTrackingSerial
cs
public static GM_Error_t32 GPSStartTrackingSerial(
GM_gps_format_t8 aFormat, //format (NMEA or Garmin)
byte aPort, //COM port for serial connections
uint aBaud, //baud rate for serial port
GM_GPSCallbackFunc aCallbackFunc, //optional callback function
uint aReserved //32-bit reserved value (must be 0)
)
GPSStartTrackingUSB
cs
public static GM_Error_t32 GPSStartTrackingUSB(
GM_GPSCallbackFunc aCallbackFunc, //optional callback function
uint aReserved //32-bit reserved value (must be 0)
)
GPSStopTracking
cs
public static GM_Error_t32 GPSStopTracking()
7.2.18 GM_GridGenSetup_t
(1)声明
cs
public class GM_GridGenSetup_t
(2)构造函数
cs
public GM_GridGenSetup_t()
(3)字段
|------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 字段 | 描述 |
| mBounds | (GM_Rectangle_t *)要将边界框网格化到当前的投影单位中。如果要使用所有输入图层的合并边界,则传递NULL(默认值)。 |
| mDesc | 网格描述 |
| mElevUnits | 在哪些单位上生成网格(如果需要,将转换其他单位的高程值) |
| mFlags | 网格生成的标志 |
| mGridAlg | 用于创建高程网格的算法(如果有) |
| mGridBinMult | 如果使用基于 bin 的网格方法,则使用网格 bin 倍数。这是计算点密度的倍数。 |
| mLidarBreaklineBinMult | 在应用断线高度和填充间隙之前,从Lidar网格周围清除的单元格数目(如果使用GM_GridGen_ApplyLidarBreaklines有效)。通常在1-4范围内。 |
| mTaperValue | 区域网格化的锥度值。 0.0表示无锥度(默认值) |
| mTightnessMult | 网格紧密度乘数(乘以分辨率),以丢弃远离样本的值。默认值为零,不会丢弃任何值。对于Lidar bin网格化,通常不希望使用0,因为它可能会非常缓慢,以填充不规则的Lidar数据中的所有间隙。使用GM_GRID_DISABLE_GAP_FILL完全禁用填充间隙。对于Lidar bin网格,间隙填充值通常在1-32范围内。 |
| mXRes | 在当前的投影单位中生成网格的X分辨率(使用0.0进行自动间隔确定) |
| mYRes | 在当前的投影单位中生成网格的Y分辨率(使用0.0进行自动间隔确定) |
7.2.19 GM_Layer_t
(1)声明
cs
public class GM_Layer_t : IDisposable
(2)构造函数
cs
public GM_Layer_t(
string aFilename, //The Path to the file to be loaded
GM_LoadFlags_t32 aLoadFlags = 0 //Flags for load options
)
(3)属性
|--------|------------|
| 属性 | 描述 |
| Closed | 返回图层的关闭状态。 |
Closed
cs
public bool Closed { get; }
(4)方法
|------------------------------------------------------------|-------------------------------------------------------|
| 方法 | 描述 |
| AddAreaToVectorLayer | 向加载的矢量图层添加区域要素 |
| AddLineToVectorLayer | 向加载的矢量图层添加点要素 |
| AddPointToVectorLayer | 向加载的矢量图层添加点要素 |
| Close | 关闭图层并清理非托管代码。返回GM_Error_t32 |
| CombineTerrainLayers | 通过组合两个加载的地形网格图层创建一个新的地形图层(在WinCE上未实现) |
| CreateCustomElevGridLayer | 创建一个用于内存高程网格的新的自定义图层(在WinCE上未实现) |
| CreateCustomRasterLayer | 创建一个用于内存栅格网格的新的自定义图层(在WinCE上未实现) |
| CreateCustomVectorLayer | 创建一个用于添加矢量要素的新的自定义图层 |
| CreateVectorLayerFromFindResults | 根据查找操作的结果创建一个新的矢量图层 |
| Dispose | 与Close执行相同的操作 |
| Draw | 将指定图层的指定部分绘制到DIB中。如果没有显式指定图层,则将绘制所有加载的图层。 |
| Equals | 根据句柄比较两个图层的相等性(重写Object.Equals(Object)。) |
| FlushCache | 刷新图层的任何内存缓存(在低内存环境中非常有用) |
| GetAreaFeature | 获取指定索引处具有可选标志的该图层中的区域要素。 |
| GetAreaFeatureEx | 获取指定索引处具有可选标志的该图层中的区域要素。 |
| GetAvailableOnlineSourceList | 检索所有可用的在线源的列表 |
| GetFeatureElevation | 获取要素的高程。使用SetLayerElevationAttribute设置高程属性的名称。 |
| GetLayerInfo | 返回有关指定图层的信息的副本。如果图层未加载,则返回NULL。 |
| GetLayerLidarStats | 从Lidar图层检索统计数据 |
| GetLidarPoint | 从图层中检索给定索引处的Lidar点要素 |
| GetLineFeature | 以可选标志获取该图层中指定索引处的线要素 |
| GetLineFeatureEx | 以可选标志获取该图层中指定索引处的线要素 |
| GetLocationColor(Double, Double, GM_Color_t) | 从提供的图层或当前加载的栅格和高程图层列表(最顶层图层优先)中的给定位置检索颜色 |
| GetLocationColor(GM_Layer_t, Double, Double, GM_Color_t) | 从提供的图层或当前加载的栅格和高程图层列表(最顶层图层优先)中的给定位置检索颜色 |
| GetLocationElevation(Double, Double, Single) | 从提供的图层或当前加载的高程图层列表(最顶层高程图层优先)中的给定位置检索高程 |
| GetLocationElevation(GM_Layer_t, Double, Double, Single) | 从提供的图层或当前加载的高程图层列表(最顶层高程图层优先)中的给定位置检索高程 |
| GetOnlineSourceInfo | 获取有关在线源的详细信息并检查可用性 |
| GetPixelBandValue(Int32, Int32, Int32, Int32) | 从提供的图层中检索给定像素位置的波段值 |
| GetPixelBandValue(GM_Layer_t, Int32, Int32, Int32, Int32) | 从提供的图层中检索给定像素位置的波段值 |
| GetPixelColor(Int32, Int32, GM_Color_t) | 从提供的图层中检索给定像素位置的颜色 |
| GetPixelColor(GM_Layer_t, Int32, Int32, GM_Color_t) | 从提供的图层中检索给定像素位置的颜色 |
| GetPixelColorRow(Int32,Color[], Color) | 从提供的图层中检索整行颜色值 |
| GetPixelColorRow(GM_Layer_t, Int32,Color[], Color) | 从提供的图层中检索整行颜色值 |
| GetPixelElevation(Int32, Int32, Single) | 从提供的图层中检索给定像素位置的高程 |
| GetPixelElevation(GM_Layer_t, Int32, Int32, Single) | 从提供的图层中检索给定像素位置的高程 |
| GetPixelElevationRow(Int32,Single[], Single) | 从提供的图层中检索整行高程值 |
| GetPixelElevationRow(GM_Layer_t, Int32,Single[], Single) | 从提供的图层中检索整行高程值 |
| GetPointFeature | 使用可选标志获取该图层中指定索引处的点要素的副本 |
| GetPointFeatureEx | 使用可选标志获取该图层中指定索引处的点要素的副本 |
| IsFeatureDeleted | 查询图层中给定索引处要素的删除状态 |
| LoadGenericAsciiTextLayer | 从简单的ASCII文本文件中加载新的图层。将指向该图层的指针存储以便后续调用使用。 |
| LoadLayer | 加载数据文件(已弃用) |
| LoadOnlineLayer | 从在线源(如WMS服务器或TerraServer-USA)加载数据 |
| LoadRectifiedLayer | 从文件中加载新的图层。将指向该图层的指针存储以便后续调用使用。该图层将使用提供的地面控制点和投影进行校正。 |
| RepositionLayer | 重新定位/重投影先前加载的栅格图层 |
| SetAreaFeatureClass | 设置给定要素使用的分类。 |
| SetAreaFeatureDrawStyle | 设置用于区域要素的绘制样式 |
| SetAreaFeaturePointList | 设置用于给定区域要素的点位置列表 |
| SetAreaFeaturePointListEx | 设置用于给定区域要素的点位置列表,包括每个顶点的高程。 |
| SetCodePage | 设置图层的代码页解释 |
| SetFeatureAttrList | 设置用于指定要素的属性值列表。 |
| SetFeatureDelete | 更改图层中给定索引处要素的删除状态 |
| SetFeatureDescription | 设置要素使用的描述。 |
| SetFeatureLabel | 设置要素使用的显示标签。 |
| SetLayerDescription | 设置图层的描述 |
| SetLayerElevationAttribute | 设置用于检索该图层内要素的高程值的属性名称。 |
| SetLayerElevationUnits | 设置用于没有高程单位的3D矢量要素的高程单位 |
| SetLayerEnabled | 设置给定图层是否启用显示。如果禁用,该图层将永远不会被绘制,也不会用作其他半透明或贴图图层的输入。 |
| SetLayerHeightAttribute | 设置用于从该图层内获取点要素的高度值的属性名称。 |
| SetLayerHeightUnits | 设置用于没有高度单位的3D矢量要素的高度单位 |
| SetLayerLabelAttribute | 设置用于设置该图层内要素显示标签的属性名称。 |
| SetLayerPalette | 为图层设置自定义调色板,以覆盖现有调色板。仅适用于基于调色板的图层。 |
| SetLayerUserData | 为图层设置用户数据。 |
| SetLayerUserText | 为图层设置用户文本。保存到工作空间后仍保持不变。 |
| SetLidarPoint | 设置给定索引处从该图层中获取的Lidar点要素 |
| SetLineFeatureClass | 设置给定要素使用的分类。 |
| SetLineFeatureDrawStyle | 设置用于线要素的绘制样式 |
| SetLineFeaturePointList | 设置用于给定线要素的点位置列表 |
| SetLineFeaturePointListEx | 设置用于给定线要素的点位置列表,包括高程列表。 |
| SetPointFeatureClass | 设置给定要素使用的分类。 |
| SetPointFeatureDrawStyle | 设置用于点要素的绘制样式 |
| SetPointFeaturePosition | 设置用于给定点要素的位置 |
| ShowOptionsDialog | 显示图层的显示选项对话框 |
| ToString | 返回对象的字符串表示形式(重写Object.ToString()方法) |
AddAreaToVectorLayer
cs
public GM_Error_t32 AddAreaToVectorLayer(
GM_AreaFeature_t aArea, //Area feature to add
GM_AddFeatureFlags_t8 aFlags //Flags controlling the add
)
AddLineToVectorLayer
cs
public GM_Error_t32 AddLineToVectorLayer(
GM_LineFeature_t aLine, //Line feature to add
GM_AddFeatureFlags_t8 aFlags //Flags controlling the add
)
AddPointToVectorLayer
cs
public GM_Error_t32 AddPointToVectorLayer(
GM_PointFeature_t aPoint, //Point feature to add
GM_AddFeatureFlags_t8 aFlags //Flags controlling the add
)
Close
cs
public GM_Error_t32 Close()
CombineTerrainLayers
cs
public static GM_Layer_t CombineTerrainLayers(
GM_GridCombineSetup_t aSetup, //Setup for operation
Object aReserved //Reserved for future use, must be NULL
)
CreateCustomElevGridLayer
cs
public static GM_Layer_t CreateCustomElevGridLayer(
string aDescription, //Description to use for layer (can be NULL to use default)
GM_Projection_t aProj, //Native projection of new layer
GM_GridLayout_t aGridLayout, //Grid layer layout and type
IntPtr aElevGrid, //Grid of elevation values in row-major order
Object aReserved //Reserved for future use (must be NULL)
)
CreateCustomRasterLayer
cs
public static GM_Layer_t CreateCustomRasterLayer(
string aDescription, //Description to use for layer (can be NULL to use default)
GM_Projection_t aProj, //Native projection of new layer
GM_RasterLayout_t aRasterLayout, //Raster layer layout
IntPtr aDataBuf //Grid of raster data values in row-major order
)
CreateCustomVectorLayer
cs
public static GM_Layer_t CreateCustomVectorLayer(
string aDescription, //Description to use for layer (can be NULL to use default)
GM_Projection_t aProj //Native projection of new layer
)
CreateVectorLayerFromFindResults
cs
public static GM_Layer_t CreateVectorLayerFromFindResults(
string aDescription, //Description to use for layer (can be NULL to use default)
GM_Projection_t aProj, //Native projection of new layer
GM_FoundFeatureResults_t aResultList //Results of find operation to create layer from
)
Dispose
cs
public void Dispose()
Draw
cs
public GM_Error_t32 Draw(
IntPtr aDC, //Device context to draw to
GM_Rectangle_t aWorldBounds, //World bounds to draw or NULL for all
int aLeftPixel, //Left pixel coordinate to draw to
int aTopPixel, //Top pixel coordinate to draw to
int aPixelWidth, //Width in pixels to draw
int aPixelHeight //Height in pixels to draw
)
Equals
cs
public override bool Equals(
Object obj //The layer to compare to this one
)
FlushCache
cs
public GM_Error_t32 FlushCache()
GetAreaFeature
cs
public GM_AreaFeature_t GetAreaFeature(
uint aIndex //Index of Area feature to retrieve
)
GetAreaFeatureEx
cs
public GM_AreaFeature_t GetAreaFeatureEx(
uint aIndex, //Index of Area feature to retrieve
GM_GetFeatureFlags_t32 aFlags, //Flags for fetching feature
Object aReserved //Reserved for future use, must be NULL
)
GetAvailableOnlineSourceList
cs
public static GM_OnlineSourceInfo_t[] GetAvailableOnlineSourceList()
GetFeatureElevation
cs
public GM_Error_t32 GetFeatureElevation(
GM_FeatureClassType_t8 aFeatureClassType, //Type of feature class (area, point, line)
uint aFeatureIndex, //Index of feature in layer
out float aElev //Elevation of feature (in meters)
)
GetLayerInfo
cs
public GM_LayerInfo_t GetLayerInfo()
GetLayerLidarStats
cs
public GM_Error_t32 GetLayerLidarStats(
out GM_LidarStats_t aLidarStats, //Buffer to hold stats in
Object aReserved //Reserved for future use, must be NULL
)
GetLidarPoint
cs
public GM_Error_t32 GetLidarPoint(
ulong aPointIndex, //Index of Lidar point feature to retrieve
out GM_LidarPoint_t aLidarPoint, //Lidar point to fill in
GM_GetFeatureFlags_t32 aFlags, //Flags for fetching Lidar point
Object aReserved //Reserved for future use, must be NULL
)
GetLineFeature
cs
public GM_LineFeature_t GetLineFeature(
uint aIndex //Index of Line feature to retrieve
)
GetLineFeatureEx
cs
public GM_LineFeature_t GetLineFeatureEx(
uint aIndex, //Index of Line feature to retrieve
GM_GetFeatureFlags_t32 aFlags, //Flags for fetching feature
Object aReserved //Reserved for future use, must be NULL
)
GetLocationColor
cs
public GM_Error_t32 GetLocationColor(
double aXCoord, //X coord in current projection
double aYCoord, //Y coord in current projection
out GM_Color_t aColor //Color of pixel at location
)
public static GM_Error_t32 GetLocationColor(
GM_Layer_t aLayer, //Layer to get color from or NULL for topmost
double aXCoord, //X coord in current projection
double aYCoord, //Y coord in current projection
out GM_Color_t aColor //Color of pixel at location
)
GetLocationElevation
cs
public GM_Error_t32 GetLocationElevation(
double aXCoord, //X coord in current projection
double aYCoord, //Y coord in current projection
out float aElev //Elevation at location in meters
)
public static GM_Error_t32 GetLocationElevation(
GM_Layer_t aLayer, //Layer to get elevation from or NULL for topmost
double aXCoord, //X coord in current projection
double aYCoord, //Y coord in current projection
out float aElev //Elevation at location in meters
)
GetOnlineSourceInfo
cs
public static GM_Error_t32 GetOnlineSourceInfo(
string aSourceName, //Name of online source to get detail info for
out GM_OnlineSourceInfo_t aSourceInfo, //Detailed information about provided source, mostly in attributes
Object aReserved //Reserved for future use, must be NULL
)
GetPixelBandValue
cs
public GM_Error_t32 GetPixelBandValue(
int aRow, //Y coord of pixel (0 is topmost)
int aCol, //X coord of pixel (0 is leftmost)
int aBand, //Band to get value for (0-based, so first band is 1)
out int aVal //Color of pixel at location
)
public static GM_Error_t32 GetPixelBandValue(
GM_Layer_t aLayer, //Layer to get color from
int aRow, // Y coord of pixel (0 is topmost)
int aCol, //X coord of pixel (0 is leftmost)
int aBand, //Band to get value for (0-based, so first band is 1)
out int aVal //Color of pixel at location
)
GetPixelColor
cs
public GM_Error_t32 GetPixelColor(
int aRow, //Y coord of pixel (0 is topmost)
int aCol, //X coord of pixel (0 is leftmost)
out GM_Color_t aColor //Color of pixel at location
)
public static GM_Error_t32 GetPixelColor(
GM_Layer_t aLayer, //Layer to get color from
int aRow, //Y coord of pixel (0 is topmost)
int aCol, //X coord of pixel (0 is leftmost)
out GM_Color_t aColor //Color of pixel at location
)
GetPixelColorRow
cs
public GM_Error_t32 GetPixelColorRow(
int aRow, //Y coord of pixel (0 is topmost)
out Color[] aColorRow, //Pointer to arrow to hold color values for row
Color aInvalidVal //Value to use for invalid pixels
)
public static GM_Error_t32 GetPixelColorRow(
GM_Layer_t aLayer, //Layer to get color from
int aRow, //Y coord of pixel (0 is topmost)
out Color[] aColorRow, //Pointer to arrow to hold color values for row
Color aInvalidVal //Value to use for invalid pixels
)
GetPixelElevation
cs
public GM_Error_t32 GetPixelElevation(
int aRow, //Y coord of pixel (0 is topmost)
int aCol, //X coord of pixel (0 is leftmost)
out float aElev //Elevation at location in meters
)
public static GM_Error_t32 GetPixelElevation(
GM_Layer_t aLayer, //Layer to get elevation from
int aRow, //Y coord of pixel (0 is topmost)
int aCol, //X coord of pixel (0 is leftmost)
out float aElev //Elevation at location in meters
)
GetPixelElevationRow
cs
public GM_Error_t32 GetPixelElevationRow(
int aRow, //Y coord of pixel (0 is topmost)
out float[] aElevRow, //Buffer to hold elevation values for row in meters
float aInvalidVal //Value to use for invalid samples (i.e. -9999.9)
)
public static GM_Error_t32 GetPixelElevationRow(
GM_Layer_t aLayer, //Layer to get elevation from
int aRow, //Y coord of pixel (0 is topmost)
out float[] aElevRow, //Buffer to hold elevation values for row in meters
float aInvalidVal //Value to use for invalid samples (i.e. -9999.9)
)
GetPointFeature
cs
public GM_PointFeature_t GetPointFeature(
uint aIndex //Index of Point feature to retrieve
)
GetPointFeatureEx
cs
public GM_PointFeature_t GetPointFeatureEx(
uint aIndex, //Index of Point feature to retrieve
GM_GetFeatureFlags_t32 aFlags, //Flags for fetching feature
Object aReserved //Reserved for future use, must be NULL
)
IsFeatureDeleted
cs
public GM_Error_t32 IsFeatureDeleted(
GM_FeatureClassType_t8 aFeatureClassType, //Type of feature class (area, point, line)
uint aFeatureIndex, //Index of feature in layer
out bool aIsDeleted //Returns TRUE if marked as deleted, FALSE if not
)
LoadGenericAsciiTextLayer
cs
public static GM_Layer_t LoadGenericAsciiTextLayer(
string aFilename, //filename of ASCII file to load
GM_LoadFlags_t32 aLoadFlags, //load flags
GM_AsciiFormatInfo_t aFormatInfo, //optional format info (use NULL to prompt user)
GM_Projection_t aProj //optional projection to use for file (use NULL to prompt user)
)
LoadLayer
cs
public static GM_Layer_t LoadLayer(
string aFilename, //The Path to the file to be loaded
GM_LoadFlags_t32 aLoadFlags = 0 //Flags for load options
)
LoadOnlineLayer
cs
public static GM_Layer_t LoadOnlineLayer(
string aSourceName, //name of the TerraServer-USA theme or WMS source to load ("drg", "doq", etc.) or NULL to ask user
GM_Rectangle_t aLatLonRect, //lat/lon rect to import (NULL to ask user)
string aExtraLoadOptions //extra load options
)
LoadRectifiedLayer
cs
public static GM_Layer_t LoadRectifiedLayer(
string aFilename, //File to be loaded
GM_LoadFlags_t32 aLoadFlags, //Flags to set load options
GM_GroundControlPoint_t[] aGCPList, //(const GM_GroundControlPoint_t*) list of control points for layer
GM_Projection_t aProj //projection of control points
)
RepositionLayer
cs
public GM_Error_t32 RepositionLayer(
GM_GroundControlPoint_t[] aGCPList, //new control points. Null to not modify
GM_Projection_t aProj //projection of control points
)
SetAreaFeatureClass
cs
public GM_Error_t32 SetAreaFeatureClass(
uint aFeatureIndex, //Index of feature in layer
AreaFeatureClass_t16 aFeatureClass //New feature class to assign to feature
)
SetAreaFeatureDrawStyle
cs
public GM_Error_t32 SetAreaFeatureDrawStyle(
uint aFeatureIndex, //Index of feature in layer
GM_AreaStyle_t aAreaStyle //New style to use for Area, pass null to restore default type-based stuff
)
SetAreaFeaturePointList
cs
public GM_Error_t32 SetAreaFeaturePointList(
uint aFeatureIndex, //Index of feature in layer
uint aHoleIndex, //Index of hole to apply locations to (0 for main parent area, 1 for first hole, etc.)
GM_Point_t[] aPointList, //New list of points for area
bool aPosInLayerCoords //Are the position in the layer coordinate system or the current coordinate system
)
SetAreaFeaturePointListEx
cs
public GM_Error_t32 SetAreaFeaturePointListEx(
uint aFeatureIndex, //Index of area in layer
uint aHoleIndex, //Index of hole to apply locations to (0 for main parent area, 1 for first hole, etc.)
GM_Point_t[] aPointList, //(const GM_Point_t*) New list of points for area
bool aPosInLayerCoords, //Are the position in the layer coordinate system or the current coordinate system
float[] aElevList //Per-vertex elevations for area feature, or NULL for none
)
SetCodePage
cs
public GM_Error_t32 SetCodePage(
int aCodePage //Code page to use (-1 for not set, 0 for current system, CP_UTF8 for UTF-8, or normal code page, like 1252, 936, etc.)
)
SetFeatureAttrList
cs
public GM_Error_t32 SetFeatureAttrList(
GM_FeatureClassType_t8 aFeatureClassType, //Type of feature class (area, point, line)
uint aFeatureIndex, //Index of feature in layer
GM_AttrValue_t[] aAttrList //New list of attributes to associate with feature
)
SetFeatureDelete
cs
public GM_Error_t32 SetFeatureDelete(
GM_FeatureClassType_t8 aFeatureClassType, //Type of feature class (area, point, line)
uint aFeatureIndex, //Index of feature in layer
bool Delete //Use TRUE to mark as deleted, FALSE to clear delete flag
)
SetFeatureDescription
cs
public GM_Error_t32 SetFeatureDescription(
GM_FeatureClassType_t8 aFeatureClassType, //Type of feature class (area, point, line)
uint aFeatureIndex, //Index of feature in layer
string aDesc //New description for feature (NULL to reset to default)
)
SetFeatureLabel
cs
public GM_Error_t32 SetFeatureLabel(
GM_FeatureClassType_t8 aFeatureClassType, //Type of feature class (area, point, line)
uint aFeatureIndex, //Index of feature in layer
string aLabel //New display label for feature
)
SetLayerDescription
cs
public GM_Error_t32 SetLayerDescription(
string aDesc //Description to use (pass NULL to restore default)
)
SetLayerElevationAttribute
cs
public GM_Error_t32 SetLayerElevationAttribute(
string aAttrName, //Name of attribute to use for elevations
uint aReserved //Reserved value for future expansion (must be zero)
)
SetLayerElevationUnits
cs
public GM_Error_t32 SetLayerElevationUnits(
GM_ElevUnits_t8 aElevUnits //Elevation units to interpret values as
)
SetLayerEnabled
cs
public GM_Error_t32 SetLayerEnabled(
bool aEnable //Enable or disable the layer
)
SetLayerHeightAttribute
cs
public GM_Error_t32 SetLayerHeightAttribute(
string aAttrName, //Name of attribute to use for height
uint aReserved //Reserved value for future expansion (must be zero)
)
SetLayerHeightUnits
cs
public GM_Error_t32 SetLayerHeightUnits(
GM_ElevUnits_t8 aHeightUnits //Height units to interpret values as
)
SetLayerLabelAttribute
cs
public GM_Error_t32 SetLayerLabelAttribute(
string aAttrName, //Name of attribute to use for naming labels
uint aReserved //Reserved value for future expansion (must be zero)
)
SetLayerPalette
cs
public GM_Error_t32 SetLayerPalette(
GM_PaletteEntry_t[] aNewPalette, //pointer to list of palette entries to use for layer or NULL to reset palette to original palette
Object aReserved //reserved for future use, must be NULL
)
SetLayerUserData
cs
public GM_Error_t32 SetLayerUserData(
IntPtr aUserData //User data pointer/value to associate with layer
)
SetLayerUserText
cs
public GM_Error_t32 SetLayerUserText(
string aUserText //Text string to set as text for layer
)
SetLidarPoint
cs
public GM_Error_t32 SetLidarPoint(
ulong aPointIndex, //Index of Lidar point feature to update
GM_LidarPoint_t aLidarPoint, //Lidar point to update
Object aReserved //Reserved for future use, must be NULL
)
SetLineFeatureClass
cs
public GM_Error_t32 SetLineFeatureClass(
uint aFeatureIndex, //Index of feature in layer
LineFeatureClass_t16 aFeatureClass //New feature class to assign to feature
)
SetLineFeatureDrawStyle
cs
public GM_Error_t32 SetLineFeatureDrawStyle(
uint aFeatureIndex, //Index of feature in layer
GM_LineStyle_t aLineStyle //New style to use for line, pass null to restore default type-based stuff
)
SetLineFeaturePointList
cs
public GM_Error_t32 SetLineFeaturePointList(
uint aFeatureIndex, //Index of feature in layer
GM_Point_t[] aPointList, //New list of points for line
bool aPosInLayerCoords //Are the position in the layer coordinate system or the current coordinate system
)
SetLineFeaturePointListEx
cs
public GM_Error_t32 SetLineFeaturePointListEx(
uint aFeatureIndex, //Index of feature in layer
GM_Point_t[] aPointList, //New list of points for line
bool aPosInLayerCoords, //Are the position in the layer coordinate system or the current coordinate system
float[] aElevList //List of per-vertex elevations. Use NULL if no elevation list
)
SetPointFeatureClass
cs
public GM_Error_t32 SetPointFeatureClass(
uint aFeatureIndex, //Index of feature in layer
PointFeatureClass_t16 aFeatureClass //New feature class to assign to feature
)
SetPointFeatureDrawStyle
cs
public GM_Error_t32 SetPointFeatureDrawStyle(
uint aFeatureIndex, //Index of feature in layer
GM_PointStyle_t aPointStyle //New style to use for point, pass null to restore default type-based stuff
)
SetPointFeaturePosition
cs
public GM_Error_t32 SetPointFeaturePosition(
uint aFeatureIndex, //Index of feature in layer
GM_Point_t aPosition, //New location of point
bool aPosInLayerCoords //Is the position in the layer coordinate system or the current coordinate system
)
ShowOptionsDialog
cs
public GM_Error_t32 ShowOptionsDialog()
ToString
cs
public override string ToString()
(5)操作符
|------------|--------------------|
| 操作符 | 描述 |
| Equality | 基于它们的句柄比较两个图层是否相等。 |
| Inequality | 基于它们的句柄比较两个图层是否不等。 |
Equality
cs
public static bool operator ==(
GM_Layer_t left, //The Left Layer
GM_Layer_t right //The Right Layer
)
Inequality
cs
public static bool operator !=(
GM_Layer_t left, //The Left Layer
GM_Layer_t right //The Right Layer
)