Other ASCII files

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NETWORK

A NETWORK file type is exclusive for the network model maps in the SPRING. In this case, there are only oriented lines and nodes that are the lines extremities. The first line in the file is the keyword NETWORK.This line starts the identification section, which is a mandatory section. For this entity the information section is optional.

The lines in this file are identified sequentially, besides the fact that each line has its own impedance value (positive or negative) and demand. The figure below shows a small part of streets/avenues network, notice that each segment is connected to a node (green circle). It will be seen that it is possible to have associated objects to nodes and lines logically.

The general format of the ASCII file for the NETWORK is presented in the example below.
NETWORK
INFO
//Arcs without Topology
//ASCII file  generated by the SPRING system
//Project: Brasilia2 - information layer: REDE-cad
//Category: REDES  - Model: NETWORKMODEL
DATUM	SAD69, 6378160.000000, 0.003353, 0.000000, 0.000000, 0.000000
PROJECTION	UTM/SAD69, 1, 0.000000, -0.785398, 0.000000, 0.000000
BOX	181990.505000, 8241710.956000, 202826.190000, 8262907.402000
UNITS Meters
SCALE	100000.000000
//Format Num_line positive_Impedance negative_Impedance Demand
//Format (turns) line_1 ; line_2 ; cost_1_2 ; cost_2_1
INFO_END
 1   1.000000   1.000000   0.000000
185596.045843     8257931.662865
185692.927882     8257883.086410
187000.835409     8257688.780590
189568.209444     8256765.827943
191215.204107     8255259.957836
192813.757752     8253122.593812
195138.926688     8252248.217621
197125.008489     8252393.946986
END
 2   1.000000   1.000000   0.000000
189955.737600     8251568.147250
191990.260420     8254628.463920
193685.696103     8256668.675033
196059.306059     8258854.615512
197028.126450     8259486.109428
END
 3   1.000000   1.000000   0.000000
188018.096819     8253899.817094
188793.153131     8255551.416566
191069.881049     8257397.321859
193249.726927     8259048.921332
194170.106298     8259826.144614
END
END

NOTE: When exporting an IL from the network model, the option Lines and Identif. in the " Exporting" window, the NETWORK file is created. When exporting, by default, the file name extension is "spr", with the "_NET" suffix added to the IL's name, that is, *_NET.spr. However, for importing the file has to have only the "spr" extension, in case the file was created in a different system.


About ASCII format

See about Importing/Exporting in the SPRING system


Other ASCII files
[ LINES ]   [ POINTS ]   [ POINT2D ]   [ SAMPLE ]   [ GRIDREG ]   [ TABLE ]   [ TEXT ]   [ POLYGONS ]   [ NETWORK ]   [ NETWORK_OBJECTS ]


See also:
How to IMPORT data?
How to IMPORT data from the SGI?
How to IMPORT GRIB images?
How to EXPORT data?