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Re: [udig-users] CreateLineStringWithUdig

You should be able to use "snapping" when creating lines in order to have good precision. Walkthrough 2 has examples of how to change between snapping modes. I would have a point for the different intersections on one layer; have a second layer for the roads and while I draw the roads I would have snapping to the point layer turned on.

Jody

On 28/08/2009, at 3:29 AM, iceDice wrote:


Hello,

I want to create some line strings which represents streets on map with
uDig.
I use line tool for this purpose and i have problem when i want to make
crossroad,
when three or more line segments intersects.
I nodded point of intersection when creating all the line segments which
belongs
to that crossroad (i made it with precision to five decimals as uDig show
coordinates
on map with that precision). However when i create graph with GeoTools graph
module
not all line segments are interconnected and reason is because not all line
strings intersects
at same point - i suspect diversity is in sixth or seventh decimal. I tried
also to put all
coordinates with precision to five decimals when creating graph but result
is same.
Is there any other way to create crossroads with uDig, or to show
coordinates with
better precision when creating lines.

Any ideas how to create crossroad in uDig that have only one common point
for
all lines (three or more) that intersects?

Best regards.
--
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