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Adds a layer from a Oracle Spatial table to an application without it appearing in a map or dataview.
AddSDOLayerToWorkspace(string layer_name, string service_name, string db_layer_name, string schema_name, array options)
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Argument |
Contents |
|
layer_name |
The desired name for the layer in the map |
|
service_name |
The name of the Oracle Spatial service |
|
db_layer_name |
The name of the Oracle Spatial table |
|
schema_name |
The name of the Oracle Spatial schema |
|
Option |
Type |
Contents |
|
Type |
String |
The feature type: "Point", "Line" or "Area" (required) |
|
NAD Conversion |
3 strings |
Input datum, output datum, and conversion file (if needed); the input and output datums should be different |
|
Projection |
String, array |
The projection name and the array of options |
|
Transform |
Array |
Array indicating the transformation to apply to coordinates in the file. This can have three forms: 1. An array of two or more four-element arrays containing local and world coordinates for control points, for example, {{real localX1, real localY1, real longitude1, real latitude1}, ...} 2. An array of four elements - {real X_multiplier, real Y_multiplier, real X_offset, real Y_offset} 3. Center and Extent transform {c1_x, c1_y, width_1, c2_x, c2_y, width_2} where center is shifted from (c1_x,c1_y) to (c2_x,c2_y), and vector of length width_1 out of c_1 becomes a vector of length width_2 out of c_2. |
A string indicating the actual name of the layer, which is identical to layer_name unless the layer name is already in use.
The Type option is required.
For more details on the NAD Conversion option, see Datum Conversions.
For more details on the Projection option, see Using Projections and Coordinate Systems.
lyr = AddSDOLayer(GetMap(), "Counties", "myservice", "US County", "US Data", {
{"Type", "Area"},
{"ID Field", "ID"},
{"Geometry Field", "Geom"}
})
nrecs = GetRecordCount(lyr)
DropLayerFromWorkspace(lyr)
ShowMessage("There are " + String(nrecs) + " counties.")
|
Error Type |
Meaning |
|
Error |
The service is not a valid Oracle Spatial database, or one of the parameters is invalid |
|
NotFound |
There is no service with the specified name |
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Function |
Summary |
|
Adds a layer from a Oracle Spatial table to a map |
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