![]() Control Panel
It is through the "Control Panel" window that the Information
Layers and their different
representations are selected either for visualization or for the desired
operation. All the data manipulation
(editing, processing, crossing, etc. ...) is performed over the Information Layer which is active in the "Control
Panel". The "Control Panel" window is presented for the user together with the Spring
main window when the Database Project is activated, and it is responsible for
the data selection function and the visualization windows control. The "Control Panel" fields are enabled only after a project
activation. It is through this dialog box that all the project contents (Information Layers) can be presented in the computer window. The View
option in the menu bar of the main window in the spring module allows to show or hide the
"Control Panel"
through the View - Control Panel options.
How
to select data for an operation
To select an IL over
which an operation will be performed it is required, first, to activate it,
or even, depending on the operation it is required to display it in the
active window. So, use both lists Categories and Information Layer
in the "Control Panel".
When selecting an Information
Layer (IL) it is enable the options in the menu bar in the main window to
operate over that IL. Many times it is not required the data visualization,
only the selection is enough so that any application works over it.
NOTE: Notice that there will always be
an active IL from the active Project, and its name will be
displayed in the footnote area in the active drawing window at the moment, or as a dark highlighted line over the name in the
Information Layer list in the "Control Panel". Notice
that according to the selected category model it will be enabled one of the
options in the main menu. For instance, if the category selected is the
thematic, the option Thematic will be enable to work over the active
IL. How to visualize an IL
To display one or more IL
in one of the five drawing areas, one has to define which ILs will be
presented for visualization. In order to do this, it is required to activate
the desired window before selecting the data. The Window 1 corresponds
to the main window of the "Spring" module, which is
initially active. If no other window is activated, the data selection will be
in Window 1. NOTE: An active IL does not mean that
it will be selected to present it in one of the drawing areas. It is required
also to select its representations. The data selection for
visualization happens at the representation level. After selecting the Category
and Information Layer one should select the IL's representation that
will be displayed. For each selected
representation, an equivalent letter is introduced between parenthesis
before the IL's name, indicating the selection. The representations change
according to the Information Layer category, as follows: THEMATIC Points (P)
- it presents all the 2D points; Lines (L) - it presents all lines,
defining or not a polygon; Matrix (M) - vectors are represented using
a matrix format; Classes (C) - it presents points/lines/polygons
associated to classes and their respective visualizations; Text (T) -
toponymy automatic generated or edited. NUMERICAL Samples
(A) - spot heights and imported or edited contour lines; Grids (G) -
rectangular grid; TIN (Ti) - triangular grid "Triangular
Irregular Network"; Contour lines (I) - contour lines generated
from the grid; Image (Im) - grid gray level image; Text (T) -
toponymy automatic generated or edited. IMAGE M (M) -
monochromatic channel , R (R) - red band, G (G) - green band, B
(B) - blue band; Text (T) - toponymy edited over an image; Synthetic
(S) - it codes three bands into a single image band; Labeled (C) -
image created by labeling processes; Segmented (R) - lines created by
an image segmentation process. NETWORK Lines (L)
- it presents all lines; Objects (O) - it presents lines/nodes
associated to an object and their respective visualization; Text (T) -
toponymy automatic generated or edited. CADASTRAL Points (P)
- presents all the 2D points; Lines (L) - it presents all lines,
defining or not a polygon; Objects (O) - it presents lines/nodes
associated to an object and their respective visualization; Text (T) -
toponymy automatic generated or edited.
Priority
The Priority sets
the visualization sequence for data visualization and it is associated to
each Information Layer. The higher the visualization priority the lower the
presentation order, so, an IL with priority 100 will be presented before an
IL with priority 110. IMPORTANT: Click on CR after
entering the priority value for each IL. To visualize data one
should first Activate a window, select the set of representation
desired and then click on Draw in the activated window.
Thematic Classes
Selection or Samples
A thematic map can have
its entities (points, lines and polygons) associated to classes
defined in the Database, that is, each one with a different visualization
aspects (color, filling, pattern, etc.). If the user wants to present in the
drawing window only the polygons which are in a given class, he/she can use
the "
Data Selection" window, which
allows the class selection to be presented. In the Numerical IL's
case, the sample representation, can be of the
following types: 3D, Lines 3D, Break Line, or Master Line. With the "Data Selection" window it is possible to select
only some types for visualization.
How
to control the SPRING windows
Besides the Window 1
represented by the main window of the spring module, there are four other
windows for visualization, numbered 2, 3, 4 and 5. The window 5 is specially reserved for some procedures, such as: data
mosaicing and images registration. The opened windows definition, active and
linked in the working area is performed through the present options in the Windows Control of the "Control
Panel".
NOTE: The system stores the ILs which are selected in each of the five windows. Even if the
active window is changed or closed, the data will be kept selected.
Once there is one or more
ILs drawn in some of the five windows, it is possible to enlarge, using
another window, what is being seen. In the "Control Panel"
use the "Zoom" button to increase 2, 4 or 8 times the data in the
drawing area. Move the cursor over one of the windows and the cursor position
will also be increased, by the same factor selected (the figure below shows
the cursor position increased 4 times). NOTE: This zooming resource is really
useful when one wants to locate with a higher precision the control points in
an image registration process. ![]() |