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Maptitude for Great Britain Newsletter |
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Welcome to the first Maptitude
for
Great Britain
newsletter, keeping you informed of the latest developments
in the GIS software, data products, and services from Caliper Corporation.
Happy Holidays to everyone receiving it!
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Map of the Month
Maptitude for Great Britain Map of the Month |
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Each month we will show a map produced out-of-the-box with
Maptitude for Great Britain,
with a description of how we produced it. This month's map
is of London's Hyde Park:
Click the map to enlarge
This map was produced using the London Overview map in the
Map Librarian, as described in Chapter 3 of the Maptitude
for Great Britain manual, and choosing Other Location. When
the Find dialog box appears choose Map Feature in the scroll
list, choose the Lon Land Use Open layer, and for the
field Name type REGENT'S PARK. You can then change the
resultant map to suit your needs (e.g.
zoom out). |
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Did You Know? |
| There is an
independent Maptitude discussion list at
http://groups.yahoo.com/group/maptitude/. To
receive e-mails from the Maptitude Yahoo Group, click the
"Join This Group!" button on the web page and follow the
instructions to become a member. |
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Tech Tip
Counting Point Records in an Area Layer |
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This month's Tech Tip explains how to count the number of
records in a point layer that are located in each record of
an area layer. For example, you may have a customer database
that you have geocoded. You want to know how many customers
are located in each of your service areas.
Introductory Users Solution:
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Create or open a map that contains your customer layer and
the service area layer.
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Change the working layer to the service area layer.
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Choose Tools-Geographic Analysis-Overlay.
Choose whether to estimate values for all features in the
working layer or
only those in a selection set from the Overlay drop-down
list.
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Choose the customer layer from the Layer drop-down list.
Choose whether to use all features from the customer layer
or only those in a selection set from the Include
drop-down list.
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Since you only want to count the number of customers,
leave the band size at 0 (zero). Check the option to count
the number of features.
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Click OK. Maptitude displays the Save As dialog box.
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Type a file name for the new table file and click Save.
Maptitude creates the overlay, writes the results to the
table, and links it to the service area layer in a joined
view.
Advanced Users Solution:
In addition to counting the number of customers in each
service area, you can obtain aggregated information about
the customers in each service area (total sales, average
age, maximum distance traveled, or statistics based on any
other numeric fields that exist in your customer layer).
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Repeat steps 1 through 5 above.
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Click Attributes to display the Overlay Attributes dialog
box.
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For each field that you want to compute attributes,
highlight it in the scroll list and check each box for
which you want to calculate a value. For example, if your
customer layer has sales for each customer, you could
check the Add box to calculate the total sales in each
service area, the Average box to calculate the average of
all customers in each service area, and the Highest or
Lowest boxes to find the maximum and minimum sales in each
service area.
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Click OK to return to the Overlay dialog box.
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Click OK. Maptitude displays the Save As dialog box.
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Type a file name for the new table file and click Save.
Maptitude creates the overlay, writes the results to the
table, and links it to the service area layer in a joined
view. |
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Subscription Info |
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Please forward this newsletter to your colleagues.
If you did not receive this newsletter directly from Caliper
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For more information on Caliper's GIS software products,
data products, and services, visit Caliper at
http://www.maptitude.co.uk/.
If you have questions regarding Caliper's GIS software,
data, or services, please do not hesitate to contact Product
Sales: email
sales@caliper.com |
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