Global Mapper SDK
| GM_Layer_t Methods |
The GM_Layer_t type exposes the following members.
| Name | Description | |
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AddAreaToVectorLayer |
Adds a area feature to a loaded vector layer
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AddLineToVectorLayer |
Adds a point feature to a loaded vector layer
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AddPointToVectorLayer |
Adds a point feature to a loaded vector layer
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| AddHoleInArea | Adds a new hole / island to a loaded area feature | |
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Close |
Closes Layer and cleans unmanaged code. Returns GM_Error_t32
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CombineTerrainLayers |
Creates a new terrain layer by combining 2 loaded terrain grid layers (not implemented on WinCE)
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CreateCustomElevGridLayer |
Creates a new custom layer for an in-memory elevation grid (not implemented on WinCE)
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CreateCustomRasterLayer |
Creates a new custom layer for an in-memory raster grid (not implemented on WinCE)
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CreateCustomVectorLayer |
Creates a new custom layer for adding vector features to
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CreateVectorLayerFromFindResults |
Creates a new vector layer from the results of a find operation
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| DeleteHoleInArea | Changes the delete status of a hole / island in a loaded area feature | |
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Dispose |
Does the Same thing as Close
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Draw |
Draws the specified portion of the specified layer to the DIB. If no layer
is explicitly specified, all loaded layers will be drawn.
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Equals |
Compares equality of two layers based off their handles
(Overrides
Object
Equals(Object)
.)
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Finalize |
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from
Object
.)
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FindLoadedLayer |
Get a handle for an already loaded layer
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FlushCache |
Flushes any in-memory cache for the layer (mainly useful in low-memory environments)
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GetAreaFeature |
Gets a Area Feature in this layer at the specified index with optional flags.
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GetAreaFeatureEx |
Gets a Area Feature in this layer at the specified index with optional flags.
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GetAvailableOnlineSourceList |
Retrieves a list of all available online sources
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GetFeatureElevation |
Gives the elevation of a feature.
Set the name of the elevation attribute using GM_Layer_m.SetLayerElevationAttribute().
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GetHashCode |
Gets the Hash Code
(Overrides
Object
GetHashCode
.)
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GetLayerInfo |
Returns a copy of information about the specified layer. Returns
NULL if the layer is not loaded.
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| GetPixelDataInRect | Retrieves an entire chunk of raw data from the provided layer. | |
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GetLayerLidarStats |
Retrieves the statistics for a Lidar layer
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GetLidarPoint |
Retrieves the Lidar point feature at the given index from the layer
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GetLineFeature |
Gets a Line Feature in this layer at the specified index with optional flags.
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GetLineFeatureEx |
Gets a Line Feature in this layer at the specified index with optional flags.
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GetLocationColor(Double, Double, GM_Color_t ) |
Retrieves the color at a given location from a provided layer or from the
list of currently loaded raster and elevation layers (topmost layer first).
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| GetOnlineLayerLocationMetadata | Queries an online layer for location-specific metadata (as a file) | |
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GetLocationColor(GM_Layer_t, Double, Double, GM_Color_t ) |
Retrieves the color at a given location from a provided layer or from the
list of currently loaded raster and elevation layers (topmost layer first).
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GetLocationElevation(Double, Double, Single ) |
Retrieves the elevation at a given location from a provided layer or from the
list of currently loaded elevation layers (topmost elevation layer first).
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GetLocationElevation(GM_Layer_t, Double, Double, Single ) |
Retrieves the elevation at a given location from a provided layer or from the
list of currently loaded elevation layers (topmost elevation layer first).
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GetOnlineSourceInfo |
Gets detailed information about an online source and checks availability
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GetPixelBandValue(Int32, Int32, Int32, Int32 ) |
Retrieves the band value at a given pixel location in the provided layer.
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GetPixelBandValue(GM_Layer_t, Int32, Int32, Int32, Int32 ) |
Retrieves the band value at a given pixel location in the provided layer.
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GetPixelColor(Int32, Int32, GM_Color_t ) |
Retrieves the color at a given pixel location in the provided layer.
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GetPixelColor(GM_Layer_t, Int32, Int32, GM_Color_t ) |
Retrieves the color at a given pixel location in the provided layer.
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GetPixelColorRow(Int32, Color , Color) |
Retrieves an entire row of color values from the provided layer.
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GetPixelColorRow(GM_Layer_t, Int32, Color , Color) |
Retrieves an entire row of color values from the provided layer.
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GetPixelElevation(Int32, Int32, Single ) |
Retrieves the elevation at a given pixel location in the provided layer.
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GetPixelElevation(GM_Layer_t, Int32, Int32, Single ) |
Retrieves the elevation at a given pixel location in the provided layer.
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GetPixelElevationRow(Int32, Single , Single) |
Retrieves an entire row of elevation values from the provided layer.
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GetPixelElevationRow(GM_Layer_t, Int32, Single , Single) |
Retrieves an entire row of elevation values from the provided layer.
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GetPointFeature |
Gets a copy of a Point Feature in this layer at the specified index with optional flags.
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GetPointFeatureEx |
Gets a copy of a Point Feature in this layer at the specified index with optional flags.
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GetType |
Gets the type of the current instance.
(Inherited from
Object
.)
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IsFeatureDeleted |
Queries the delete status of the feature at the given
index in the layer
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| IsHoleInAreaDeleted | Queries the delete status of a hole / island in a given area feature | |
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LoadGenericAsciiTextLayer |
Loads a new layer from a simple ASCII text file file. A pointer to the layer is stored for use in later calls.
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LoadLayer |
Displays a prompt to select which file to load.
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LoadOnlineLayer |
Loads data from an online source, like a WMS server or TerraServer-USA
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LoadRectifiedLayer |
Loads a new layer from a file. A pointer to the layer is stored for
use in later calls. The layer will be rectified using the ground
control points and projection provided.
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LoadVectorFromWKTString |
Loads a new vector layer from a WKT geometry string. A pointer to the layer is stored for
use in later calls.
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MemberwiseClone |
Creates a shallow copy of the current
Object
.
(Inherited from
Object
.)
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RepositionLayer |
Repositions/reprojects a previously loaded raster layer
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SetAreaFeatureClass |
Sets the classification to use for the given feature.
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SetAreaFeatureDrawStyle |
Sets the drawing style to use for the area feature
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SetAreaFeaturePointList |
Sets the list of point locations to use for a given area feature
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SetAreaFeaturePointListEx |
Sets the list of point locations to use for a given area feature, including per-vertex elevations.
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SetCodePage |
Sets the codepage interpretation for the layer
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SetFeatureAttrList |
Sets the list of attribute/values to use for the specified feature.
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SetFeatureDelete |
Changes the delete status of the feature at the given
index in the layer
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SetFeatureDescription |
Sets the description to use for the feature.
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SetFeatureLabel |
Sets the display label to use for the feature.
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SetLayerDescription |
Sets the description for the layer
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SetLayerElevationAttribute |
Sets the name of the attribute to use for retrieving the elevation value of
features within this layer.
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SetLayerElevationUnits |
Sets the elevation units to use for 3D vector features without an elevation unit in the elevation attribute
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SetLayerEnabled |
Sets whether or not a given layer is enabled for display. If disabled, the
layer will never be drawn or used as input for other translucent or
texture-mapped layers.
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SetLayerHeightAttribute |
Sets the name of the attribute to use for retrieving the height value of
point features within this layer.
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SetLayerHeightUnits |
Sets the height units to use for 3D vector features without a height unit in the height attribute
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SetLayerLabelAttribute |
Sets the name of the attribute to use for setting the display label of
features within this layer.
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SetLayerPalette |
Sets a custom palette for the layer to override the existing palette. Only works
for palette-based layers.
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SetLayerUserData |
Sets the user data for the layer.
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SetLayerUserText |
Sets the user text for the layer. Persistent through save to workspace.
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SetLidarPoint |
Sets the Lidar point feature at the given index from the layer
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SetLineFeatureClass |
Sets the classification to use for the given feature.
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SetLineFeatureDrawStyle |
Sets the drawing style to use for the line feature
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SetLineFeaturePointList |
Sets the list of point locations to use for a given line feature
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SetLineFeaturePointListEx |
Sets the list of point locations to use for a given line feature, including elevation list.
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SetPointFeatureClass |
Sets the classification to use for the given feature.
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SetPointFeatureDrawStyle |
Sets the drawing style to use for the point feature
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SetPointFeaturePosition |
Sets the location to use for a given point feature
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ShowOptionsDialog |
Show display options dialog for layer(s)
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ToString |
Returns a string representation of the object
(Overrides
Object
ToString
.)
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