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Imports features from Intergraph Design File format (DGN) files, also known as Intergraph Standard File Format (ISFF).
ImportISFF(array filenames, string new_db_name, string layer_type, string units, array options)
Argument |
Contents |
filenames |
An array containing the path and file names of the files to import |
new_db_name |
The path and file name of the new geographic file |
layer_type |
The type of the layer: "Point", "Line", or "Area" |
units |
The units to use: "UOR", "MU", or "SU" |
Option |
Type |
Contents |
Entity |
Integer |
The entity number to match for MSLINK |
Label |
String |
A descriptive label for the geographic file |
Layer Name |
String |
The name of the layer in the geographic file |
Levels |
Array |
An array of desired levels (defaults to all) |
Median Split |
Boolean |
If "True" special handling insures that entities which cross the 180 degree longitude line are imported properly; if "False" (the default), no special handling is invoked |
NAD Conversion |
Array |
Input datum, output datum, and conversion file (if needed); the input and output datums should be different |
Node Layer Name |
String |
Name of the node layer; only for line layers |
Optimize |
Boolean |
Whether to optimize the geographic file automatically after the import (defaults to "True") |
Projection |
String and Array |
A string with the projection name, and an array of projection options; the option {"units","us-ft"} needs to be specified for normal 1927 State Plane Coordinates |
Table Filename |
String |
The path and name of the file in which attributes are stored; the file extension must be .BIN, .CSV, .DBF, or .TXT; a required option |
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. |
For more details on the NAD Conversion option, see Datum Conversions.
For more details on the Projection option, see Using Projections and Coordinate Systems.
The table is hard linked to the geography if it exists and Layer Name has been specified.
ImportISFF({"c:\\isfffiles\\boston.dgn"}, "boston.dbd", {
{"Label", "Boston Parcels"},
{"Layer Name", "Parcels"},
{"Optimize", "True"},
{"Table Filename", "boston.bin"}
})
Error Type |
Meaning |
NotFound |
The specified file could not be found |
Error |
The file is not a valid ISFF file |
Function |
Summary |
Collects summary information on the contents of an Intergraph Standard File Format (ISFF) file |
|
Imports features from a DXF file into a geographic file |
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