To Import SGI Data
The
SGI (Sistema de
Informações Geográficas) is a software developed by INPE for the processing of thematic and
numeric data.
Before importing any project and its IL's from SGI, one must define in SPRING a
Database and the Categories
corresponding to the SGI data type.
In the case of a thematic IL from SGI, it suffices that the
category of the thematic model be created without classes so that the IL can be
imported. When selecting the Thematic Category in the option "Import from SGI..."
the classes of SGI, present in the ".tab" file, will be automatically created
in SPRING. In case the category selected already contains classes, it will be
necessary to make associations between those classes of SGI and the classes in
SPRING in order to have the conversion done.
Procedures for importation
See the SGI files needed for each data type.
A - For the importation of thematic
data in the SGI format, SPRING imports Lines, Line Labels, and Thematic
Images.
- <proj name>.prj - <proj name>.dir - <proj name>_<il_name>.li1 - <proj name>_<il_name>.li2 - <proj name>_<il_name>.cen
To import a Thematic Image the following SGI files are
needed:
- <proj name>.prj - <proj name>.dir - <proj name>_<il_name>.di - <proj name>_<il_name>.i - <proj name>_<il_name>.tab - <proj name>_<il_name>.lu
To import Texts the following SGI files are needed:
- <proj name>.prj - <proj name>.dir - <proj name>_<il_name>.tex
B - For numeric data in SGI format SPRING imports spot heights and contour lines
(samples).
To import Spot Heights the following SGI files are
needed:
- <proj name>.prj - <proj name>.dir - <proj name>_<il_name>.pt - <proj name>_<il_name>.i - <proj name>_<il_name>.lut
To import Contour lines the following SGI files are
needed:
- <proj name>.prj - <proj name>.dir - <proj name>_<il_name>.li1 - <proj name>_<il_name>.li2
To import Grids the following SGI files are needed:
- <proj name>.prj - <proj name>.dir - <proj name>_<il_name>.gr
C - For image data in SGI format SPRING imports Gray Level Image and Coded
Image (Synthetic).
To import Gray Level Image the following SGI files are
needed:
- <proj name>.prj - <proj name>.dir - <proj name>_<il_name>.di - <proj name>_<il_name>.i
To import Coded Image the following SGI files are
needed:
- <proj name>.prj - <proj name>.dir - <proj name>_<il_name>.di - <proj name>_<il_name>.i - <proj name>_<il_name>.lut
See following the procedures to import SGI data.
Importing SGI Data:
-
select File - Import from SGI...
on the main menu. The window "Import
SGI Data" is presented;
-
click
on the button
SGI File...
to navigate to the directory where the SGI files are kept, specially the file
"<proj name>.dir";
-
click on the button
Loadin
the import window.
Note that the
Information Layers
in the SGI project are listed;
-
select
the desired
Infolayer
from the list;
-
type in
the name of the
Project to be created in SPRING (maximum
32 characters), in case no project has been loaded;
-
click on the button
Category... to
select in the window "Categories List"
the model type equivalent to the one in SGI. The categories and classes should
have been already created using the option
File - Data
Model... or
;
-
type in
the name of the IL that will contain the data in SPRING. In case you use an
existing IL you will have to select the option
Mosaic
so you won't delete the existing contents of that IL;
-
in case SGI's IL is a thematic map, and the category in SPRING is without
classes, the SGI classes will be automatically created in SPRING. In case the
SPRING category already contains classes, it will be necessary to associate the
SGI classes with the classes in SPRING so that the conversion can be done;
-
click on the button
Applyin
order to perform the importation.
OBS: In case some text is associated to any IL in SGI, this will be
automatically created in SPRING.
IMPORTANT: When importing a first IL from SGI it will be necessary to
unload any loaded project in SPRING. After the importation of this first IL
from SGI, a project will be automatically created and loaded in SPRING.
See
more about the import/export formats in SPRING
See also:
Definition of Database
Definition of the Conceptual Model
How to IMPORT data of other formats ?
How to IMPORT GRIB images
?
How to EXPORT data ?
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