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Thematic mapping- graduated

  • 1.  Thematic mapping- graduated

    Posted 10-16-2020 10:06
    Hi,
    I'm mapping information using a thematic map (V17). Graduated points. My information is in integers.
    The legend insists on showing decimals though.

    Obviously this is less than helpful when people try to interpret what they are seeing on the map- how do I constrain it to integers?

    Also, while I'm here, how do i get zero or n/a to show up as no point. At present they still show a dot and I have to explain that means zero.

    Martin


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    Martin Burroughs
    Oldham Council
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  • 2.  RE: Thematic mapping- graduated

    Posted 10-16-2020 11:35
    Martin,

    2 ways I can think of with the legend numbers.
    a) just edit them in the legend window to the closest whole number
    b) make the maximum size 10 then the other increments are 5 and 1.

    to eliminate 0s or n/a query the data first to get rid of these records and then thematic map the Query layer instead

    HTH

    Nick

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    Nick Hall
    Mapchester LTD
    nick.hall@mapchester.co.uk
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  • 3.  RE: Thematic mapping- graduated

    Posted 10-16-2020 13:47
    Cheers Nick. a) is clunky but b) sounds workable :-). Never tried to thematic from a query, I'll give it a go.

    all the best

    Martin

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    Martin Burroughs
    Oldham Council
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  • 4.  RE: Thematic mapping- graduated

    Posted 10-20-2020 04:01
    Hi Martin
    When you first create the thematic: on Step 2 of 3, when you select the table and the field, there is also a tick box to Ignore Zeroes or Blanks.
    That will stop them getting a symbol displayed.

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    John Ievers
    CDR Group
    Hope Valley, United Kingdom
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  • 5.  RE: Thematic mapping- graduated

    Posted 10-20-2020 06:33
    Good spot John, cheers!

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    Martin Burroughs
    Oldham Council
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