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Questions tagged [merge]

To combine two or more parts into a larger whole.

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2
votes
1answer
598 views

merging TIGER Line shp files for better labeling in ArcGIS

When working with TIGER line shp data at county level scale the labeling of roads, rivers, railroads, etc. is cumbersome due to all of the tiny line segments. Merging the dozens of segments that ...
2
votes
3answers
20k views

Merging two or more layers using ArcGIS for Desktop?

I am working with three clipped layers that are shown in the TOC. I created these layers from a large watershed shapefile. However, each clipped layer includes the layer before it and only expands on ...
3
votes
1answer
1k views

Merge selected features and programming

I have a shapefile with UK districts and unitary authorities. In the past, using commuting patterns, I worked out a new geography which is close to travel to work areas. I now would like to create a ...
1
vote
1answer
391 views

problem after merge shapefiles, can't show it on OpenLayers with GeoServer

I have 5 .shp files, after merge it with geomerge, I can't use it on OpenLayers with GeoServer. it's only show white layer and when i click it, it show error message: Internal error occurred ShapeType ...
12
votes
3answers
14k views

Measuring performance difference between Merge and Append in ArcGIS Desktop?

Often I find myself in a situation where I don't care whether or not my tool produces a new feature class, but I do care how long it takes to combine all of my large datasets. Does it take longer to ...
12
votes
1answer
9k views

Merge Multiple Tables into a New Table in PostGIS

I am looking to merge a number of individual tables into a new table in PostGIS. This is an easy task when working with Shapefile data, but I am unsure how to do this in PostGIS. Any help would be ...
26
votes
2answers
54k views

Joining several raster files using QGIS?

I'm new to QGIS. How can I combine multiple raster layers into one layer? The raster images are of different areas with very little overlap. The goal is to bring numerous town plats into one ...
82
votes
3answers
186k views

Merging multiple vector layers to one layer using QGIS?

I've imported several shapefiles which where exported from a Mapinfo .tab. Several tab files are imported resulting in 20+ layers. Afterwards I want to export it to geoJSON; but I'm reluctant to ...
8
votes
4answers
4k views

Using open source software to merge large shapefiles?

Some background: I have 2 polygon shape files with approximately 500,000 records each. The two files are identical in terms of field structure. Using ArcGIS 10.0 I can'nt merge these two files using ...
5
votes
2answers
2k views

Merging polygons that intersect by more than a specified amount

I am working with a dataset that contains a subset of property boundaries in a local government area, thus my dataset is made up of several thousand properties but not all are touching. Since it is a ...
3
votes
1answer
641 views

How to combine lines from different sources reperesenting the same road network but with slightly different geometry?

I have got two layers of polylines which represent the same road network but they are from different sources and have different geometry. The two layers are mostly the same tracks with larger or ...
2
votes
2answers
2k views

Inputting multiple featureclasses into Merge tool using ModelBuilder?

So I have 490 point fc's in a single directory with uniform spatial features, field names/datatypes. I'm trying to figure out how to consecutively input the first seven fc's into the merge tool, ...
1
vote
3answers
3k views

What is the problem with the merge shapefiles tool in QGIS?

I'm having trouble merging shapefiles in QGIS. I'm using plugin ftools 0.6.1 and I get this: Any workarounds someone may know of?
2
votes
1answer
687 views

Merging OD Cost Distance Matrix result from ArcGIS Network Analyst in ArcPy?

Using ArcGIS 10 Network Analyst, I've created small python script that calculates OD matrix between certain locations, i.e. not between each origin and destination but for each origin I have a set of ...
1
vote
1answer
574 views

Merging in ModelBuilder after Running Script?

I have multiple inputs running through various processes throughout my model. At the end of these processes they are all merged together and output into one final feature class. This was working fine ...
6
votes
2answers
39k views

Merging several DEMs into one using ArcGIS Desktop?

Is there any ArcGIS 10 tool to merge several DEM into a single one?