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Questions tagged [mergeshapes]

For questions related to the MergeShapes plug-in of QGIS

0
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0answers
24 views

Combine GeoJSON files into bigger shapes with external JSON to merge on

I have a shapefile of New York ZCTAs here I also have these neighborhood definitions that map zip codes to New York City Boroughs. I'd like to take my "all of New York zip code" data and: Clump up ...
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1answer
35 views

Merging lines, issue

I use qgis 2.18. I've merged two lines into one with the merging tool from advanced toolset. When I cut off a small part of the line, I see the original lines again? In these two lines I have the same ...
2
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1answer
98 views

How to merge big and many polygons (SHP) in QGIS/Spatialite?

Background: I have a bunch of (huge) SHP-files that I would like to merge to one big SHP-file that I can use for geo-processing (clip, etc.). Now I was able to merge a big part of the SHP-files to one ...
2
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4answers
108 views

Merge shapes from the same layer by attributes

I have a single layer with shapes (raster cells) that represent all countries on earth (the figure below shows france). Each shape has specific attributes. Is it possible to merge the shapes by ...
2
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1answer
166 views

Merge polygons from two different layers in QGIS

I have a layer with all buildings. Then I made a layer with buildings of interest from my part. The problem is that a building of interest is made out of several polygons, but I want it as one ...
2
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1answer
71 views

Resolving mistakes after merging polygons

My problem is quite similar to those of title "qgis merge polygons does not merge on snapped edges" and "Merging polygons". I'm merging several polygon features (within one layer), all adjacent with ...
3
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1answer
3k views

“Merge Selected Features” Persistently Grayed Out

I am perplexed by a new occurrence in QGIS, I seem unable to merge selected features e.g. Polygon. Toggling Editing on a polygon layer, and selecting two polygon features I would like to merge ...
3
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0answers
551 views

MergeShapes gives AttributeError: 'NoneType' object has no attribute 'isEmpty'

I try to merge two polygon shapes in QGIS 2.18.4 with the MergeShapes plugin. The error message shown below is what I get in return. Does anyone know a solution? I want to make one table out of two ...
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3answers
4k views

Global name 'dataobjects' is not defined in QGIS?

I have this small problem with QGIS 2.18.4 Las Palmas. I just downloaded it and tried to merge vector layers, but i've got error: "global name 'dataobjects' is not defined". I didn't change anything ...
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0answers
17 views

Replacing Polygon layer with extent of another polygon in ArcGIS Desktop? [closed]

I need to insert a multi-polygon feature class into an existing vector layer (replacing the entire area within the former's footprint). Is there a better way than just DELETE then MERGE polygons (in ...
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2answers
6k views

ogr2ogr merge multiple shapefiles: What is the purpose of -nln tag?

The basic script in order to iterate recursively over sub-folders and merge all shapefiles into single one is: #!/bin/bash consolidated_file="./consolidated.shp" for i in $(find . -name '*.shp'); do ...
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0answers
63 views

Create new shapes by merging an existing shape

I want to create a new shapefile from an existing one. I would like to create a new shapefile for next level of geo hierarchy (say regions) by grouping some of features (states) from the existing ...
4
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1answer
2k views

Can't merge Polygons - Error: “layers must all be of the same geometry”

I have several polygons (all of which have the same CRS and attributes) and I want to merge these into a single layer. I had hoped this would be a quick, easy process in QGIS but the merge functions (...
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0answers
299 views

Shapely Cascaded Union Failure

I am trying to merge polygons using shapely. Here is the piece of code that is being used. This code, fully functional earlier, doesn't seem to work (probably because my python packages were updated). ...
3
votes
1answer
56 views

Ghost feature in D3

I am very new. to GIS. I am making an interactive that uses TopoJSON. Starting with a shapefile map of the world that shows the last bit of the Russia on the left rather than attached to the main ...
1
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1answer
88 views

How to merge polygons not sharing same boundaries based on attribute with one expression in qgis

I have a .shp file of a country in which I have NAME_1 as state/province name. NAME_2 as district name and NAME_3 as towns of the district. I want to merge the polygons based on NAME_2 for the whole ...
4
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4answers
6k views

Error in merging two shapefiles of different geometry types

I am trying to merge two shapefiles... Here are the links of two shapefiles Australian State & Territory State and Territory ASGC Ed 2011 Digital Boundaries in ESRI Shapefile Format (http://...
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0answers
304 views

QQIG/SAGA “merge shapes layers” algorithm removes underscores/pluses from layer names

I have a bunch of layers that are named layername_number+number that I want to merge. I need their names as source attribute so I used the "merge shapes layers" algorithm found under SAGA in the ...
1
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1answer
349 views

Merging small area units [duplicate]

I am working with population data organised in parish units for the whole of Denmark. Many parishes are very small (ie <500 inhabitants compared to a median of around 1500) so I plan to merge these ...
2
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0answers
496 views

Merge vector layers to fill gaps in QGIS

I have a zip code map which I added per zip code data too (a regional director for each zipcode), and then dissolved the map based on the director attribute. As you may or may not know, zip codes are ...
3
votes
0answers
129 views

Merge shapefiles to one tool not working?

When using the data management tool "Merge shapefiles to one" in QGIS why is it copying one of my shapefiles instead of merging the two together as it should?
1
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1answer
229 views

Merge two vector layers with different granularity

Beginner at QGIS here. I have two vector layers. One represents country boundaries for the whole world. The other one represents region boundaries, but only for OECD countries. I would like to ...
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0answers
160 views

QGIS MergeShapes Error

I am using the MergeShapes plugin with QGIS 1.8.0 on a Windows 7 computer. The issue I am having is when I perform a merge from a directory based on one geometry type, and then switch the geometry ...