Hello everyone,
I was wondering if anyone can help me with a Map Basic problem I am having.
I'm trying to automate a thematic map using the "Region, individual values,
black and white" template. This map is suppose to result from values
extracted from a selection performed prior.
The selection results with a list of names - and regions should be shaded
according to which name it falls in. I have managed to just get the names
and the regions it falls under. Not the shading part.
Then I have to use the "Shade" statement to create the thematic map:
Shade 3 With some_column
Values
"xxxxxxxxx" Brush ...
"yyyyyyyyyy" Brush ...
"zzzzzzzzzz" Brush ...
etc....
My problem is that the list of names can be 3 or 23! How do I code in Map
Basic to dynamically list the names and assign a different brush style under
the Shade statement?
Another attempt: I put the names in an array variable. I tried to list the
values by putting them all in one variable 'name_list', where names(n) is
the array variable containing the names:
counter = 2
name_list = Chr$(34) + names(1) + Chr$(34)
do while counter <= newsize
name_list = name_list + "," + Chr$(34) + names(counter) + Chr$(34)
counter = counter + 1
loop
The problem with above is that 'name_list' is seen as just one long string
rather than a list of strings, despite that I have put in double quotation
marks (Chr$(34)).
I also tried putting under 'values' a variable list with: names(1),
names(2), names(3), ... to a certain number
but if the selection results in a list of names smaller than the listed
number of variables, then it doesn't work. It seem to fail when there is no
value for the rest of the listed variables.
Or is there a way to call an existing MapInfo function and pre-assign all
the values to automatically create the thematic map?
The answer seem like it can be right under my nose but I can't see it. Any
help would be appreciated.
Thanks,
Susan
----------------------------------------------------------------------
To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put
"unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
