[GRASSLIST:3112] digitizing and snapping problems
Kirk R. Wythers
kwythers at UMN.EDU
Wed Apr 7 13:46:09 EDT 2004
I seem to be going though several extra steps in order to get polygons
to close without undershoot/overshoots. I am hoping that someone will
be able to point out a more expedient procedure.
My problem is this: When digitizing common area boundaries, I am having
a hard time getting a new line/area to snap to the line of the existing
polygon (even when I try intentionally to start the new line off of an
existing corner when a node should be). The first node of my new line
is well within my snap threshold, but does not snap.
I can go back "after the fact", and use "Edit/Break" function to insert
a new node on the first polygon, then use "Edit/Snap" to connect the
lines. However, this is time consuming and I was hoping that someone
would point out a technique to get the new line to snap to the fist
polygon in the first place. Once I complete the first polygon the
polygon's nodes seem to disappear. So that by the time I start the line
to close the second polygon, there doesn't seem to be a node to snap
to, just a angle where the node "used to be?".
Thanks,
Kirk
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Kirk R. Wythers tel: 612.625.2261
Dept. of Forest Resources fax: 612.625.5212
University of Minnesota email: kwythers at umn.edu
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