To import data

The importation of data in any of the formats ASCII-SPRING, ARCINFO-UNG, DXF-R12, SHAPEFILE, JPEG, RAW, JPEG->JPEG, SITIM, SURFER-ASC, IDRISI.IMG-ASC or DXF/DWGrequires the a priori definition of categories that are adequate to each data to be imported.

It is not necessary to have an active project to perform the importation, but in this case, one must inform the name, projection, and bounding box, in the same importation window.

To ease the description of the procedures, we divide the importation in:


See also:
Definition of Database
Definition of Data Model
How to IMPORT data from GIS ?
How to IMPORT GRIB images ?
How to EXPORT data ?
How to convert SHAPEFILE, MID/MIF, E00 and DBF into ASCII-SPRING ?
Data Export - Tables ASCII-SPRING


See more about the formats of importation/exportation in SPRING


Importation of ASCII-SPRING or ARCINFO-UNG data

In order for SPRING to recognize in the file list one of these formats it should have the following extensions:

Importing ASCII-SPRING or ARCINFO-UNG data :

  • load a database ( ) and define the categories that will receive the external data, in case they do not yet exist;
  • load a Project ( ) that should include the coordinates of the data in the external file, otherwise the parameters to create a project will be requested, in case one is not loaded;
  • click on File and select Import... . The "Import" dialog will be presented;
  • click on the Directory... button to select the directory where the file to be imported is, or type in the path and click on the CR button.
  • in Format: you select between ASCII-SPRING and ARCINFO-UNG. If there are any files with the corresponding extension they will be presented in the list underneath;
  • click on the file name in the list;
  • click on Entity.: and choose among:
    • Line without adjust - imports 2D lines for IL's of the thematic, cadastral or network types into the formats ASCII-SPRING (LINES type in case thematic or cadastral - NETWORK type in case networks) or ARCINFO-UNG. The lines won't be adjusted or polygonized in case they define closed areas;
    • Line with adjust - imports 2D lines and adjusts the nodes with tolerance 0 (zero), that is, the end of two lines should be in the same point so that the system recognizes the connection between them. Useful for lines in thematic, cadastral, or network IL's of the format ASCII-SPRING (of the type LINES in the case of thematic os cadastral - type NETWORK in the case of network) or ARCINFO-UNG. The polygonalization is not done in case the lines define closed areas;
    • Line with topology - imports 2D lines and adjusts the nodes with 0 (zero) tolerance and polygonizes, that is, creates the polygons if the lines define closed areas. Useful for polygons of thematic or cadastral IL's of the formats ASCII-SPRING (LINES type in cases thematic or cadastral - NETWORK types in case network) or ARCINFO-UNG. If you use this option with lines of a category of the network model the polygonalization will not be performed. The processing will be the same as in the option before.
    • Labels - imports the classification (labeling) of 2D lines (in this case one pair of coordinates over each line) or polygons (one pair of coordinates within the polygon) for thematic, cadastral or network type IL's in the ASCII-SPRING  (type POINTS in cases thematic or cadastral - type NETWORK_OBJECTS in case network)or ARCINFO-UNG formats. The thematic classes or objects will be created, in case they do not exist in the database.
    • Point 2D - imports 2D points and their identification as classes of a thematic IL or objects of a cadastral IL. Useful for the ASCII-SPRING format (type POINT2D in case thematic or cadastral).
    • Sample (MNT) - imports 3D contour lines and 3D points for IL's of the numeric model in the formats ASCII-SPRING (typo SAMPLE) or ARCINFO-UNG;
    • Break Line (MNT) - imports 2D rectangular grids for thematic or numeric IL's. Useful for lines in the formats ASCII-SPRING (type LINES) or ARCINFO-UNG.
    • Regular Grid/Matrix - imports 2D rectangular grids into thematic or numeric IL's in the formats ASCII-SPRING (type GRIDREG in cases thematic or numeric) or ARCINFO-UNG (only for numeric grids). In the case of a thematic ASCII the definition of the classes and the visual should be defined within the file;
    • Text - imports the toponymy for any type of IL, be it thematic, cadastral, images or network in the format ASCII-SPRING (type TEXT);
  • select the unit for the data in Unit: m, km, feet, pol., degrees, sec., mm. In case the data is latitude/longitude (for example s 23 45 32.34 w 45 20 0.0), they will be automatically recognized, independently of the selection of some unit;
  • type in the Scale for the IL that will be created. It is suggested to keep the same scale of the base, or define a scale that will be used by your output device (for example a printer);
  • type in the resolution in meters in the fields Res.: _X: and Y:, in the case the entity is a sample of MNT (DTM) or Break Line (DTM);
  • in case you don't have a loaded project it will be necessary to define a projection, so click on the button Projection... and provide the needed parameters (see how to use the window "Projections");
  • use the button Bounding Box... to define a rectangle smaller than the one of the loaded project. In case there is a loaded project, these values should be informed in the window "Bounding Box...";
  • type in the name of a Project (maximum 32 characters) in case you do not have loaded one;
  • click on the button Category... to choose the category to which the IL that will be created will belong to. The window "Categories List" is presented. Select one category from the list equivalent to the model to which the data to be created belongs (Thematic, Cadastral, Network, or Numeric);
  • type in the name of the IL to be created or inform the name of one that belongs to the loaded Project, but do not forget to click on the Mosaic check box in this last case;
  • click on Execute to perform the importation.

NOTE 1: In the case of any error verify the parameters provided above, mainly if the data model of the external data corresponds to the one chosen in the category.

NOTE 2: The following items must be checked so that the importation is successful:

·       If the measure unit informed in the importation window is correct( the default unit in the importation window is meters and the data can be in degrees, kilometers or others);

·       If the bounding box is correct according to the data

·       If the projection data are equal (if they are not, inform in the importation interface the source projection, so that the importation is performed with remapping).    


Importation of DXF/DWG data

In order for SPRING to recognize in its file list the format DXF/DWG, the file should have the following extension:

Importing DXF/DWG data:

  • load a database ( atalho_bancod.gif - 1054 Bytes) and define the categories that will receive the external data, in case they do not exist.
  • load a Project ( ) that will have to enclose the coordinates of the data from the external file, or the parameters to create one will be requested, in case one is not loaded;
  • click on File and select Import... . The window "Import" will be presented;
  • use the button Directory... to navigate to the directory where the file to be imported resides or type in the path to the file and click on the button CR.
  • select in Format:  DXF/DWG. If there are files with the corresponding extension, they will be presented in the list underneath;
  • select the desired file from the list;
  • click on Layer... . The window "Layers" will be presented to select the layer(s). It can be verified in this window the layer content and some transformations can be performed in the DXF/DWG data to correct the positioning (Delta X and Delta Y), rotation and scale, so that it is geographically adjusted with the active project;
  • after selecting the layer(s) note that the name of the layer must be in the text box in front of the button;
  • click in Entity: and choose among:
    • Line without adjust - imports 2D lines for IL's of the thematic, cadastral or network types. The lines won't be adjusted or polygonized in case they define closed areas;
    • Line with adjust - imports 2D lines and adjusts the nodes with tolerance 0 (zero), that is, the end of two lines should be in the same point so that the system recognizes the connection between them. Useful for lines in thematic, cadastral, or network IL's. The polygonalization is not done in case the lines define closed areas;
    • Line with topology - imports 2D lines and adjusts the nodes with 0 (zero) tolerance and polygonizes, that is, creates the polygons if the lines define closed areas. Useful for polygons of thematic or cadastral IL's. If you use this option with lines of a category of the network model the polygonalization will not be performed. The processing will be the same as in the option before.
    • Labels - imports the classification (labeling) of polygons only for thematic or cadastral type IL's. A layer of text must exist containing the origin of each text (lower left corner) internal to each polygon. If the active IL is thematic it will be enough to choose the entity, otherwise the window "DXF/DWG Text Selection"will be presented to filter the type of text and the prefix or suffix that will be added to each text identifying the objects in the map;
    • Point 2D - imports 2D points into a thematic or cadastral IL;
    • Sample (MNT) - imports 3D contour lines and 3D points into an IL of the numeric type. One must have the height Z associated to each LINE, POLYLINE or POINT in the origin file.
    • Break Line (MNT) - imports 2D lines into numeric IL's;
    • Regular Grid/Matrix - NOT available for DXF/DWG;
    • Text - imports one layer from the DXF/DWG as toponymy into any type of IL, be it thematic, cadastral, images or network;
  • select the unit for the data in Unit: m, km, feet, pol., degrees, sec., mm.
  • type in the Scale for the IL that will be created. It is suggested to keep the same scale of the base, or define a scale that will be used by your output device (for example a printer);
  • type in the resolution in meters in the fields Res.:_X: and Y:, in the case the entity is a sample of MNT (DTM);
  • in case you don't have a loaded project it will be necessary to define a projection, so click on the button Projection... and provide the needed parameters (see how to use the window "Projections");
  • use the button Bounding Box... to define a rectangle smaller than the one of the loaded project. In case there is a loaded project, these values should be informed in the window "Bounding Box...";
  • type in the name of a Project (maximum 32 characters) in case you do not have loaded one;
  • click on the button Category... to choose the category to which the IL that will be created will belong to. The window "Categories List" is presented. Select one category from the list equivalent to the model to which the data to be created belongs (Thematic, Cadastral, Network, or Numeric);
  • type in the name of the IL to be created or inform the name of one that belongs to the loaded Project, but do not forget to click on the Mosaic check box in this last case;
  • click on Execute to perform the importation.

NOTE 1: In the “Layers” window, some transformations on the data that are in the DXF/DWG can be performed to correct the positioning (Delta X and Delta Y), rotation and scale, so that it will be geographically adjusted with the loaded project.

NOTE 2: In the case of any error verify the parameters provided above, mainly if the data model of the external data corresponds to the one chosen in the category.

NOTE 3: The following items must be checked so that the importation is successful:

·       If the measure unit informed in the importation window is correct( the default unit in the importation window is meters and the data can be in degrees, kilometers or others);

·       If the bounding box is correct according to the data

If the projection data are equal (if they are not, inform in the importation interface the source projection, so that the importation is performed with remapping).

Seta_up.gif - 170 Bytes

 


Importation of SHAPEFILE data

In order for SPRING to recognize in its file list the format Shape the file should have the following extension:

NOTE: The direct importation of a SHAPEFILE is valid only for IL's of the CADASTRAL model or NETWORK. In the case of a thematic only the lines/points will be imported. For the other models it is recommended the use of the converter window “File->Convert to ASCII_SPRING” and then import the ASCII-SPRING file generated.

Importing SHAPEFILE data:

  • load a database ( ) and define the categories that will receive the external data, in case they do not yet exist;
  • load a Project ( ) that should include the coordinates of the data in the external file, otherwise the parameters to create a project will be requested, in case one is not loaded;
  • click on File and select Import... . The "Import" dialog will be presented;
  • click on the Directory... button to select the directory where the file to be imported is, or type in the path and click on the CR button.
  • in Format: you select SHAPEFILE. If there are any files with the corresponding extension they will be presented in the list underneath;
  • click on the file name in the list;
  • select the unit for the data in Unit: m, km, feet, pol., degrees, sec., mm.
  • type in the Scale for the IL that will be created. It is suggested to keep the same scale of the base, or define a scale that will be used by your output device (for example a printer);
  • in case you don't have loaded project it will be necessary to define a projection, so click on the button Projection... and provide the needed parameters (see how to use the window "Projections");
  • use the button Bounding Box... to define a rectangle smaller than the one of the loaded project. In case there is a loaded project, these values should be informed in the window "Bounding Box...";
  • type in the name of a Project (maximum 32 characters) in case you do not have loaded one;
  • click on the button Category... to choose the category to which the IL that will be created will belong to. The window "Categories List" is presented. Select one category from the list equivalent to the model to which the data to be created belongs (Thematic, Cadastral, Network, or Numeric);
  • type in the name of the IL to be created or inform the name of one that belongs to the loaded Project, but do not forget to click on the Mosaic check box in this last case;
  • click on Execute to perform the importation.

NOTE 1: In the case of any error verify the parameters provided above, mainly if the data model of the external data corresponds to the one chosen in the category.

NOTE 2: The following items must be checked so that the importation is successful:

·       If the measure unit informed in the importation window is correct( the default unit in the importation window is meters and the data can be in degrees, kilometers or others);

·       If the bounding box is correct according to the data

If the projection data are equal (if they are not, inform in the importation interface the source projection, so that the importation is performed with remapping).

 


Importation of JPEG, RAW, and SITIM data

 

Importing JPEG, RAW AND SITIM images:

  • load a database ( ) and define the categories that will receive the external data, in case they do not yet exist;
  • load a Project ( ) that should include the coordinates of the data in the external file, otherwise the parameters to create a project will be requested, in case one is not loaded;
  • click on File and select Import... . The "Import" dialog will be presented;
  • click on the Directory... button to select the directory where the file to be imported is, or type in the path and click on the CR button.
  • in Format: you select JPEG, RAW, JPEG->JPEG or SITIM. If there are any files with the corresponding extension they will be presented in the list underneath. The option JPEG -> JPEG keeps the image with that same format in SPRING but as a synthetic only;
  • click on the desired file name in the list;
  • select the entity to which the data belongs, that is, Image, Classified Image, or Synthetic Image;
  • type in the resolution: X: and Y: in meters for the image that will be associated to the created IL;
  • for the RAW format type in the number of the image columns (Columns:), number of the image lines (Lines:)
  • in case you haven't loaded a project it will be necessary to define a projection, so click on the button Projection... and provide the needed parameters (see how to use the window "Projections");
  • use the button Bounding Box... to define a rectangle smaller than the one of the loaded project. In case there is a loaded project, these values should be informed in the window "Bounding Box...";
  • type in the name of a Project (maximum 32 characters) in case you do not have loaded one;
  • click on the button Category... to choose the category to which the IL that will be created will belong to. The window "Categories List" is presented. Select one category from the list equivalent to the Image model;
  • type in the name of the IL to be created or inform the name of one that belongs to the loaded Project, but do not forget to click on the Mosaic check box in this last case;
  • click on Execute to perform the importation.

OBS: When selecting images in the SITIM format, make sure that the descriptor file contains the images. See also if the characters of the descriptor file name and of the images use the same font, that is, all in capital or lower case letters.
IMPORTANT: Since the images to be imported are not georeferenced they should be imported into a box (bounding box) with the same number of lines and columns, otherwise they should be converted from the formats RAW and SITIM into the GRIB format, by the use of the
IMPIMA module. After having an image in the GRIB format, you can acquire control points and afterwards perform the registration.


NOTE: The importation of the JPEG -> JPEG format does not allow for the change in Projection, so for example, if your JPEG was generated in UTMSAD69, it can only be imported into a project of the same projection.

Seta_up.gif - 170 Bytes


See also:
Definition of Database
Definition of the Conceptual Scheme
How to IMPORT SGI data ?
How to IMPORT GRIB images ?
How to EXPORT data ?
How to convert SHAPEFILE, MID/MIF, E00 and DBF into ASCII-SPRING ?