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Why
do I have to ‘Zoom In’ to see more data?
The
display of most map layers in this application are scale
dependent. For example, maps layers,
which were developed
from large-scale (lots of detail) maps, such as DNR roads
and orthophotos images, would draw (paint) the entire state
almost all black if viewed for the entire state. A statewide
view of these map layers is essentially meaningless. Also,
the volume of data that Internet Map Server would have
to process to service your request would be very
large and would
slow down the display tremendously. To avoid these problems,
you cannot select or view certain large-scale (more detailed)
map layers until you zoom to a map scale, which is more
appropriate and meaningful for viewing those
data. For example, you cannot
select or view Public Land Survey Sections (PLSS) or place
names (GNIS) until you are zoomed in at a scales below
1:100000.
The magnifying
glasses, located on the upper left corner of the ‘mapping tools’ toolbar
provide incremental zoom in/zoom out functionality. If
you have clicked on one
of the magnifying glasses, the active tool will be set
to either ‘Zoom In’ or ‘Zoom
Out’.
Subsequent clicks in the map frame will recenter and incrementally
resize
the map frame.
You can also zoom in and out, using the ‘zoom tool
bar’ located on the right margin of the map frame.
The blue buttons provide zooming to a predefined display
area or scale. A ‘map tip’ describing the course
zoom level of the map layers is visible when you pause the
cursor over the blue buttons.
You can also zoom in and out by using the navigation tools
located under the ‘tools’ menu. Using the ‘tools’ menu
you can also pan around the map frame, zoom to a user-specified
scale, select your previous geographic extent, select the
full geographic extant of the data, and much more…
You can also zoom in and out to specific features of interest
by using the ‘select area’ tool. The user can
specify the map layer of interest and then pick a specific
sub-unit of interest to zoom to. For example, the user
can first select ‘elk area’ and then choose
the specific elk unit of interest (example: 2032 Malaga)
from a pick-list in the pop-up menu.

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