Questions tagged [merge]

To combine two or more parts into a larger whole.

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20 views

QGIS: Where did Merge go in Raster menu?

I am using QGIS 3.6.2-Noosa. Last time I merged rasters (a couple of weeks ago) I had options on the Raster Menu that are mysteriously gone now (I would merge via Raster>Miscellaneous>Merge). Now when ...
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24 views

Merging annotations in ArcMap?

How do I merge two annotations into a single part?
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1answer
21 views

Merging entities to existing feature class?

Do you have any idea how I can merge entities to an existing feature class that already has the same structure and not in an existing feature class as the ArcGIS tool proposes?
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38 views

Raster nodata = -3.4028234663852886e+38 [closed]

I'm very new to raster manipulation, and I'm getting a nodata value of -3.4028234663852886e+38 when importing USGS NED 1/3 arc-second n41w074 1 x 1 degree IMG using rasterio on Python. What is it ...
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19 views

Unable to merge rasters: ImportError: DLL load failed: The specified module could not be found [closed]

I have recently come across an issue that I can't figure out how to solve. I am trying to merge two rasters (which I have previously done successfully on QGIS 3.4) however I keep getting this error ...
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1answer
50 views

Merging many rasters with Python script within QGIS using GDAL?

I have many rasters that im trying to combine in order to produce contours. They are in the .bil format so I understand that i need to translate them using gdal first but none of my attempts have ...
3
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1answer
65 views

Merging all vector files within directory with QGIS?

I am unsuccessfully trying to merge all shapefiles in a given directory using QGIS 2.18. I do not want to navigate to the folder using QGIS GUI tools. Instead, I want my script to include all ...
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22 views

QGIS 3.4 bug merging layers

I have some difficulties with the tool Merge vector layers (free translation from French). The result of the process is an empty layer of the line layers. It is strange, because I did it with two ...
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1answer
34 views

Batch reading features from many Geodatabases in R

I would like to learn to batch import from many geodatabases at once and merge the files together into a new unified shapefile. All of the GDBs and Features have a similar name and file structure. For ...
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2answers
42 views

Merging feature class with field mappings using datum transformation?

I suspect that there is no easier way to do this, other than developing this as a two-step process with a temporary output (which seems somewhat wasteful). If I have to, I'll just create a temporary ...
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1answer
75 views

How to merge geoseries to geodataframe based on geometry attribute

I have 5868 points in a geodataframe with some columns/attributes. Between points which have distance less than 10 m, I just want to select only one point as representation in that area. I have done ...
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1answer
47 views

In ArcGIS 10.6, How do I remove FID columns from automatically being created/inserted during Merge?

When I go to merge some polygons, it automatically adds an FID for each polygon as a column. It takes forever to go through and delete each FID for the output. Two questions: Is there a way to prevent ...
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1answer
34 views

Using Merge Tool in ArcMap?

I have two polygon layers which represent the same thing and I want to merge them to keep all the features in A and "fill in the gaps" with B. Should I be using the merge tool here? I'm using ...
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1answer
40 views

QGIS (merging, dissolve, union) lines of same name

I have street data where roads are segmented for no particular reason. I want to merge, dissolve or union whatever seems fit to make a single flat line. I H have tried above processes in QGIS but ...
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1answer
55 views

Union, merge, intersection, join layers - logical difference and clear explanation for QGIS

I note that there are answers available on the difference between join and merge (e.g., Difference between 'join' and 'merge'?) that link to ArcGIS resources as a reference. However, I ...
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46 views

Merging Degree Two nodes in Stream Network using QGIS 3.4

I have a stream network and I want to convert it in graph like data structure, for which I need to have precise set of FROM and TO vertices.The geometry of stream network is not correct i.e. the ...
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2answers
46 views

Merge shapefiles with unequal field lengths

I have several shapefiles in ArcMap that I want to merge together into one shapefile so I don't have to keep juggling them all. However, I can't use the Merge geoprocessing tool because it gives me a ...
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32 views

Merging layers to intersect and count (tally) multiple fields in QGIS?

My question is similar to Performing multiple layer intersection in QGIS? However, there are a few differences. I have run a test analysis on a dummy data set and cannot replicate the result with my ...
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1answer
35 views

Merging raster fail: only one raster in output?

I am trying to merge two rasters (.tif) in QGIS (Raster > Miscellaneous > Merge), but only one of the rasters is kept in the output. I need a 3rd rasters with the sum of the values from both input ...
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2answers
61 views

Merge shapefiles with common field

I'm trying to merge several shapefile layers. Each of the layers has three attributes: CGRSName: Name of the grid cell (same for each shapefile) CGRSType: explains the type of grid (not important ...
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1answer
57 views

Merging road segments into one road line in QGIS

I have a Shapefile with a road network (lines) which includes several road segments (lines). Is there any way to merge all these lines into one line using QGIS?
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2answers
67 views

Merging polygons that share one vertex (node neighbors) using ArcGIS Desktop?

I have a set of very large shapefiles and would like to merge polygons within these that share one vertex. Currently they are all separate like so: What tool can I use to merge all the polygons ...
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1answer
41 views

ArcMap 10.6: Is it possible to extract point values from points?

I've got three point shapes with different fields that I cannot seem to merge as I get ERROR 000229: cannot open 'name of shapefile'. Instead of solving this error, I wanted to try something different:...
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1answer
26 views

How to keep color changes / corrections of all GeoTIFF files during merge with gdal or in QGIS?

I am trying to merge two GeoTIFF files in QGIS or w/ gdal, but when I merge them I lose the color changes / corrections I made to the second GeoTIFF. Is there any way to keep the color changes I made ...
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1answer
59 views

How do I merge a clipped raster on top of another raster is QGIS?

I am trying to merge two rasters (geotiffs) in QGIS. One raster is the original & the other is clipped to a specific region of the original raster and 0 applied to null area to make transparent. ...
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1answer
55 views

Dissolve (merge) polygons QGIS based on attribute values only when are adjacent

I am a fairly new user of QGIS having a question regarding dissolve functionality. I am working with the NUTS-2 shapefiles provided by EU, which I have imported in QGIS. I have created a new layer ...
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1answer
68 views

Dissolve (merge) polygons QGIS based on (non exact) attribute values

I am a fairly new user of QGIS having a question regarding dissolve functionality. I am working with the NUTS-2 shapefiles provided by EU, which I have imported in QGIS. To ease the discussion, I ...
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1answer
34 views

Merge polygons based on nearest area

I have multiple polygons that show me metropolitan areas and rural areas across a state. I want to modify the layer so that there are no rural polygons by assigning portions of the rural polygons to ...
2
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1answer
50 views

Merging two neighboring cells in grid of type SpatialPolygonsDataFrame?

I have a grid of type SpatialPolygonsDataFrame (each cell has a set of data attributes). I want to merge each cell which has a surface < X with one of its neighbours. An example is depicted in the ...
2
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1answer
80 views

Dissolve Field Not Showing in QGIS?

Using QGIS 3.6 Currently trying to dissolve a polygon layer by FIELD values. QGIS 3.6 and the fields won't show up. In fact I am unable to dissolve by FIELD for any layer in my entire project. If I ...
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1answer
72 views

PyQGIS code for Merge Vector Layers

I've been trying to automate the merge vector layers via PyQGIS but I can't seem to get it right. This is my code: import os import processing loc = r"C:\Users\loc" os.chdir(loc) shapelist = os....
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1answer
59 views

Maintaining Borders when Merging shapefiles?

I am trying to merge two layers of a map which includes the state and county levels. I was able to edit the borders to look how I want, but when I merge them I am struggling to keep the style ...
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28 views

Merging polygons in ArcMap?

Inside the red circle, there are two yellow polygons of different sizes inside the large polygons. There are many such polygons. I want to merge the attribute information of a large yellow polygon in ...
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1answer
40 views

QGIS - Missing GDAL Tools plug-in (merging Raster TIFFs of satellite image)

I am trying to install the GDAL Tools plug-in but it is missing from the Plug-ins list. I am looking to merge multiple Raster TIFFs which make up my satellite image basemap, exported using Atlas, ...
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0answers
29 views

Tabulating points from CSV that are within 1 km of points from another CSV using QGIS?

I have two sets of data. One that is from a csv and contains a relatively small amount of data (we will call location data), and another csv that contains a larger dataset that contains environmental ...
1
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2answers
108 views

Combining data from overlapping polygons and assign [duplicate]

I have two multipolygons layers: Layer A: Census blocks with data from 2010 (last census). Layer B: A study about poor neighborhoods with data from 2016 (POOR NH). Both layers have a "population" ...
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1answer
179 views

Combining multiple shapefiles into one shapefile using ArcMap?

I have two .shp containing stream segments from two different NHD HUC files (see photo). I would like to make these into one shapefile and combine the attribute tables. I have tried to use the merge ...
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1answer
81 views

Merge small underlying polygons into overlaying shapefile with larger polygons [closed]

I have a dataset with the average rent prices saved in a vector layer (.shp). It is "street" based, so it has quite a fine resolution. I have a different dataset (containing info about crime rates) in ...
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2answers
53 views

Are there different definitions of “merge”?

The merge tool in ArcGIS ArcToolbox is used to combine two layers, but it seems that there is also a Merge option under Modify Features that is used to combine and dissolve adjacent features within a ...
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46 views

How to merge / join line segments by attribute and split at intersection

I have a complex network of line features with a lot of attributes (and unique IDs). Many features have the exact same values (exept the ID). I need to join all features with the same attribute which ...
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0answers
90 views

Merge shapefile data within the same spatialpolygonsdataframe in R, when not all data have the merge column populated?

I have a 156Mb shapefile of New Zealand polygons down to the individual suburb level. There are 7,369 polygons. Each polygon has a unique ID (1...7369) in an ID column. There is a Suburb column ...
3
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1answer
59 views

How do I split subjacent lines and merge attributes in QGIS [duplicate]

I have 2 vector line layers. They are subjacent, so one of them is exactly on top of the other but the features have different nodes and attributes. My goal is to create labels and descriptions for ...
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0answers
45 views

Merging sections of lines with same geometry in QGIS? [duplicate]

I have a series of bus routes with the frequency/hour attached in QGIS. The idea is to combine the frequencies on routes with more than one bus to have an overall bus frequency for the sections of ...
3
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1answer
49 views

Copy elevation from points to line

I have a vector line, but it has no z-dimension. I have some points along the line, which have the elevation included. Can I add the elevation from the points to the line at that specific point? ...
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1answer
111 views

Merge connected lines and split them after set unequal distances

I need to edit line features in QGIS 3.4.4. I have more than 1000 line features that I want to first merge and then split. The line features describe roads in useless intervals, my goal is to ...
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0answers
29 views

How to fix discontinuity after blending two rasters

I've tried finding similar questions with no luck, so I apologize if this has been asked already. I have an observed temperature raster and a model analysis temperature raster. In places where there ...
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0answers
79 views

OSM.PBF does not contain all exported/merged/converted data from XML using OSMIUM/OSMOSIS

I have three pbf files, each containing poi nodes x ways y multi-polygon relations z separately. I tried merging them using: osmosis --read-pbf file=x.pbf --read-pbf file=y.pbf --read-pbf z.pbf --...
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0answers
68 views

QGIS 3.4 merge raster output only 1 px wide

I have four .xyz files with terrain data. I can convert them to TIFs in QGIS 3.4, but in either format, merging them fails. The merge output always has the X dimension of the merged rasters, but a Y ...
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2answers
91 views

Merging layers with different objectid types

I have a problem that's stumped me. I'm merging flood hazard layers from FEMA. For most states, the objectid is a real number. California (we're always the weird ones) has an objectid that's '...
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2answers
62 views

Merging feature classes in memory gives ERROR 001156?

arcpy.AddField_management("in_memory/originalfc","ALPHABET","TEXT",1) arcpy.Select_analysis("in_memory/originalfc","in_memory/A","attr<=0") arcpy.CalculateField_management("in_memory/A","ALPHABET",'...