removing small polygons in Illustrator or FreeHand
Started by
Dennis McClendon
, Nov 09 2006 06:12 PM
10 replies to this topic
#1
Posted 09 November 2006 - 06:12 PM
I've got a map of Israel that undoubtedly was created as a large GIS map but came to me via PDF. I have a thousand tiny little polygons for little hamlet settlements, and I want to get rid of the smallest ones. Can anyone think of a clever way to do this in either Illustrator or FreeHand?
#2
Posted 09 November 2006 - 07:23 PM
If you have mapublisher you could georeference the data, export it to a shapefile, calculate the area of each one within a GIS (or maybe Mapublisher can do this) relink the table with areas values or re-import the data and then select the small ones based on a size threshold. It doesnt matter if the area is correct since it is all relative so as long as you can georeference it to a projection that maintains area you should be OK.
mg
mg
#3
Posted 09 November 2006 - 09:25 PM
As Martin mentioned, MapPublisher would be the tool to use.
... and with MapPublisher you can reselect based on polygon size and delete.
I guest it is all about using the right tools for the job. (But a tool box can become rather expensive).
... and with MapPublisher you can reselect based on polygon size and delete.
I guest it is all about using the right tools for the job. (But a tool box can become rather expensive).
Chart
#4
Posted 10 November 2006 - 05:39 AM
I have used this script, it has come handy a few times, especially for things that I don't want to go back to GIS for. For instance, I have gotten slivers when doing a bevel trick using trimming duplicated layers. It is not consistent, and you have to play around a little bit with it. I think there is actually a limit on how many paths you can have selected at one time to run this script, try it with a few first to get a feel for how it works:
Clean smaller script from illustrator.hilfdirselbst.ch
Clean smaller script from illustrator.hilfdirselbst.ch
#5
Posted 10 November 2006 - 07:41 AM
I have used this script, it has come handy a few times, especially for things that I don't want to go back to GIS for. For instance, I have gotten slivers when doing a bevel trick using trimming duplicated layers. It is not consistent, and you have to play around a little bit with it. I think there is actually a limit on how many paths you can have selected at one time to run this script, try it with a few first to get a feel for how it works:
Clean smaller script from illustrator.hilfdirselbst.ch
Great find Hugo.
This is by far theasiest way to go if it works.
#6
Posted 10 November 2006 - 11:39 AM
Thanks. I can't tell from the site if that script is for the PC or Mac.
Interesting site. I see there's a whole section with Tips for FreeHand Users.
Interesting site. I see there's a whole section with Tips for FreeHand Users.
#7
Posted 10 November 2006 - 01:18 PM
Dennis,
the java scripts work on both platforms...that is their great advantage.
the java scripts work on both platforms...that is their great advantage.
#8
Posted 11 November 2006 - 11:26 AM
I download it also (but have not tested it) .
Thanks for the lead.
I guest the ultimate question is. Did it do the job...?
Thanks for the lead.
I guest the ultimate question is. Did it do the job...?
Chart
#9
Posted 11 November 2006 - 02:46 PM
it works great for me - one just have to be careful with the amount, and play with it
#10
Posted 13 November 2006 - 07:52 AM
I was working with that script just now, and fixed an annoyance with it. It is not the amount of paths that was the problems, but the script doesn't like when one selects a whole group.
Now that is fixed, in this revision, with edits by yours truly:
http://dev.oxel.net/...lean_smaller.js
Now that is fixed, in this revision, with edits by yours truly:
http://dev.oxel.net/...lean_smaller.js
#11
Posted 16 November 2006 - 08:49 PM
In Freehand you can use the Find palet to select->Object Type->paths and then set it to find poly with 3 points etc.
Cheers,
Cheers,
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