(3) Grid size: 4,700 m by 5,890 m.
(4) OK
(b) Feature Objects -> Map -> 2D Grid
(1) Cell size = 25 m
(2) Depth = Interpolated (use defaults).
(3) OK
2.
Alternatively, the grid position may be defined graphically. Rotate
the grid by putting the cursor on the open circle in the lower right
corner of the grid and dragging to a new orientation. Translate the
grid by grabbing the purple frame or resize by grabbing the black
circles on the grid corners or sides. The grid origin is the corner with
the I,J axis. Refer to the SMS Grid Frame help topic for more
information.
h. Map jetty locations. Jetty elevations are not included in the xyz
bathymetry, so the jetty elevations must be added to the grid. A scanned
image (yaq_entrance.tif) of the jetty location in Tiff format is
imported to visualize the jetty location. This image (yaq_entrance.tif)
is more current than the NOS image (18581a.tif):
Map Module -
1.
(a) File | Open -> yaq_entrance.tif.
This image will replace any previous image -> OK.
(b) Register the image for use as the grid's background display by
identifying three points on the image (U,V) which correspond to
locations having known real world (X,Y) coordinates.
(1) Coordinates of the three registration points, shown by a +
symbol, are listed in edit fields below the image. Drag the
large + symbol over the small + symbol having a
corresponding number. Click the Zoom Tool
and drag
the mouse cursor over the + symbol to form a rectangle.
This enlarges the area inside the rectangle. Ensure that the
large & small + symbols are aligned. If not, click on the
Select Point Tool
and adjust the small + symbol so
that it is centered over the large. Click the Frame Macro
Tool
to zoom out.
(2) Enter State Plane coordinates (in meters) for the three
registration points.
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Chapter 5 SMS User Interface
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