Hi Larry,
You have created a wonderful tool. It takes just a second to learn (perhaps
ten seconds to teach somebody) how to use it, including the unique possibility
of selecting two separate linestrings, digitize the section in between them and
join them all to one. Congratulations.
-Jukka-
________________________________
Lähettäjä: Larry Becker [mailto:[EMAIL PROTECTED]
Lähetetty: 24. lokakuuta 2008 18:16
Vastaanottaja: OpenJump develop and use
Aihe: Re: [JPP-Devel] Stream digitizing tools?
I fixed an Java 1.5 incompatibility and added support to for extending
multiple selected LineStrings or joining two with a connection.
Larry
On Thu, Oct 23, 2008 at 1:43 PM, Larry Becker <[EMAIL PROTECTED]> wrote:
I have committed the changes to DrawLineStringTool that add
support for extending the selected LineString. It took me longer than I
thought. I must be out of practice for cursor tools. :-( Please test
tomorrows build to see if it works as expected.
regards,
Larry
On Wed, Oct 22, 2008 at 11:42 PM, Rahkonen Jukka <[EMAIL
PROTECTED]> wrote:
Larry Becker wrote:
>>
>> Extending linestrings from one end would be highly
appreciated feature.
>>
> Do you think it would be sufficient to add some code
to the existing
> linestring tool? It could check to see if 1) a
linestring was selected ,
> and 2) one of its endpoints match an endpoint of of
the linestring just
> digitized. If true, it would merge the two
linestrings. This behavior is
> similar to the polygon tool when creating holes.
I think it would be sufficient. Only thing that may go
wrong is that if snapping to vertices is not selected from options then the
points won't necessarily match. It would be fine it user could see somehow
immediately after setting the first new vertex if the linestrings will be
merged or not.
Best user interface I have ever seen for extending
linestrings is in the OpenStreetMap Potlatch editor. It offers also a pretty
simple way to insert and drag new vertices into existing line segments, merge
existing linestrings and a few more. Editor can be found at
http://openstreetmap.org. It starts by pressing the Edit tab, but you need to
create user account first. Or you can read this introduction:
http://wiki.openstreetmap.org/index.php/Potlatch/Primer.
-Jukka-
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