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AddShapeLayer()

Summary

Adds a layer from a Esri (ArcView) Shapefile to a map.

 

Syntax

AddShapeLayer(string map_name, string layer_name, string file_name, array options)

 

Argument Contents
map_name The name of the map to which the layer is added
layer_name The desired name for the layer in the map
file_name The full path and file name of the Esri Shapefile

 

Option Type Contents
Read Only Boolean "True" to open read only, "False" (default) otherwise
Shared Boolean "True" to open shared, "False" (default) otherwise; "False" sets the Exclusive mode
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.

 

Returns

A string indicating the actual name of the layer, which is identical to layer_name unless the layer name is already in use.

 

Notes

Example

AddShapeLayer(GetMap(), "Centerlines", "c:\\mysample.shp", {

{"Projection", "utm", {"zone=12", "units=m"}}, 

{"NAD Conversion", "NAD27", "NAD83",} 

}) 

 

Error Codes

Error Type Meaning
Error The file is not a valid Shapefile, or one of the parameters is invalid
NotFound There is no file with the specified name

 

See Also

Function Summary
AddShapeLayerToWorkspace() Adds an Esri (ArcView) Shapefile layer to an application without it appearing in a map or dataview
ImportArcViewShape() Imports features from an Esri (ArcView) Shapefile into a geographic file

 

 

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