Automatic process of moving points or features to match or coincide exactly with coordinates of another feature within a specified distance, or tolerance

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5
votes
2answers
253 views

3D snapping in open source platforms

I'm looking for tools and extensions in open source platforms (gvSIG, QGIS, uDig, etc) that allows 3D snapping. In the last years, most of the projects my company is working on required the editing ...
8
votes
6answers
6k views

Why won't ArcMap 10 snap?

I'm really confused by this. ArcMap will seeminly randomly decide to not allow snapping when editing. Sometimes its only for certain features, sometimes for only parts of the same feature (e.g. one ...
2
votes
0answers
230 views

Get Feature that was snapped to in New Snapping Environment

I asked this over at the ESRI forums but lack of activity over there made me post here as well. Does anyone know if there is a way to get the feature that something was just snapped to in the ...
6
votes
1answer
818 views

Is there a way to automatically snap loose points of lines to close by vertices with Quantum GIS?

I have a vector layer of lines that were drawn with the snapping option off. I need to have them snapped but, there are hundreds of lines. Is there any solution to do this automatically or ...
2
votes
3answers
1k views

ERROR 000800 when trying to snap points layer to line or buffer layer

I am very new to GIS, so go easy on me. I am using ArcCatalog 10.0 and trying to snap a set of points to another layer that has roads in it. The points represent 10th miles along the road. Here are ...
2
votes
2answers
899 views

ArcGIS10 Trace tool not honoring classic snapping

I have just installed service Pack 3 for ArcGIS 10 Desktop. Normally I use the new snapping environment, so I am unsure whether this is a new issue with SP3 or if it has been the case the whole time. ...
12
votes
1answer
393 views

How to maintain integrity between changing street network and geocoded points?

We maintain hundreds of thousands of points geocoded against a dual-centerline Navteq street network. We are faced with the challenge of maintaining referential integrity between our points and the ...
15
votes
5answers
1k views

Algorithm to fix topological errors in GIS software apps

Related question here. I notice that ensuring topological correctness is essential for GIS applications, this is because the input from user or polygon boolean operation can have severe topological ...
4
votes
1answer
256 views

Excluding layers from snapping using IPointSnapper

I'm working with ArcObjects in C#, and am trying to exclude all map layers but one (the only one I want to snap to) from the snapping environment. I'm using the ISnappingEnvironment and IPointSnapper ...
11
votes
1answer
741 views

Snap line layer to network in QGIS or PostGIS

I have GPS data I've taken of bus routes, and now I'd like to snap it to my road network. Both layers are line layers in a PostGIS DB. I'd like to use either QGIS or PostGIS, but if I have to go with ...
2
votes
3answers
2k views

ArcGIS 10's Editor and Snapping toolbars question (snapping polyline to another polyline)

Have attempted this about 20 different ways using Editor / Snapping Toolbars and ET GeoWizards but still cannot find solution. Screen shot is attached. Need to snap the green polyline to the red ...
21
votes
7answers
15k views

Removing small spaces (slivers) between polygons?

I have a set of polygons representing administrative districts. The districts were digitized by hand, and there are small spaces (slivers) between polygons where the polygons should be touching. How ...
6
votes
1answer
591 views

Is it impossible to measure Right of Way in ArcGIS?

I'm helping bring CAD people into ArcGIS so that everyone throughout the company is on the same page and there is one database for everything. Right now, one of the biggest hurdles is making sure all ...
2
votes
1answer
938 views

Is there a function or tool that will add vertices to polylines where endpoints are snapped to edges? (ArcMap)

My friend and I are creating a walking network, and we have been having issues getting the routing to work. We just realized that the reason why our routes are messed up is because we snapped our ...
7
votes
5answers
11k views

Snapping points to lines in ArcGIS Desktop and automate using VBA?

I use ArcGIS Desktop and I want create a network with a point feature and a line feature. I need my point features to be on the line features so I should do Snap point to line. However, I do not ...