To combine two or more parts into a larger whole.

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15 views

How do you merge overlapping .asc files in QGIS with topography and bathymetry?

Firstly, apologies for any incorrect terminology - this is my first time trying to manipulate GIS data. I have two files. The first is higher resolution (SRTM) topography data for a region of islands ...
1
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0answers
29 views

Merging two or more selected features from same layer into one feature with ArcPy?

I need the functionality of the editor > merge command for use in a python script tool. I realize this function is not directly accessible through ArcPy, but I am hoping someone can help with a work ...
3
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1answer
44 views

Merging Feature Classes and keeping the metadata

Is there a way that while merging two feature classes we can keep the metadata? We are merging feature classes with templates so we can import specific fields into our data. Is there a way to keep ...
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1answer
294 views

merge rasters with nodata cells

I want to create single attribute table base on multiple overlapping raster. Some raster do not overlap completely but have common areas. In that situation I need the value from other raster while ...
2
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2answers
37 views

Merge multiple SpatialPolygonDataFrame into 1 SPDF in R (analogue to “Merge” Tool in ArcGIS)

I have created 2 polygons in QGIS. Using them in R, polygons become automatically SpatialPolygonsDataFrame (SPDF). I would like to merge them into single SPDF (as is super easy in ArcGis using Tool ...
0
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1answer
26 views

Merging buffers together with no fill colour? [closed]

I am a bit of a novice with GIS. I have created several 500m buffer zones around streets in GIS. I ultimately want a combined buffer so only the outside line that measures 500m away from all of these ...
2
votes
1answer
2k views

Merge multiple feature datasets while maintaining shapefiles for respective point, line, and polygon files nested ArcGIS

I've been doing some digging and a few days of playing around with my data in ArcInfo but I haven't been able to find a solution to merging datasets, which consist of many different point, line, and ...
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1answer
27 views

Merge a table with a shapefile (not the same dimension)

I am trying to merge a table with a shape file using R. The shapefile's database is bigger than the table and I need to have null or zero values where the two data sets don't match. Table data no. ...
2
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1answer
56 views

FME Proccess to merge two CSV files not working

I am trying to merge two datasets of golfcourse data with almost similar information. my end goal is to have all the data into one csv file that have merged information from both csv files. I have ...
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0answers
32 views

Combining tiff with shapefile

I have a geotiff image with a D_WGS_1984 Datum of land cover for the continental US and I want to be able to merge it with a US counties shapefile. What is the fasters and best way to do this? My ...
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1answer
52 views

Calculating area using dissolve and merge but getting shapefiles with empty attribute tables in QGIS?

I have a shapefile of a country with the 29 provinces. I also have shapefiles with the areas which are protected from construction (there are 4 categories for protection, within 4 shapefiles. Some of ...
2
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1answer
79 views

Merging ShapeFiles with QGIS for UK counties

I want to draw a map for all the counties of the UK including Northern Ireland. Since I cannot find a source of counties including both Northern Ireland and Britain, I tried to merge two shapefiles ...
2
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2answers
109 views

Merging linestrings in QGIS using PostgreSQL and PostGIS

I've to merge all linestrings from a PostgreSQL table "river" where not more than two start-/endpoints are overlapping. In the illustration below I use a "M" to mark all linestrings that needs to be ...
3
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1answer
2k views

Using ModelBuilder to select layers by attributes, dissolve and then merge them?

I would like to reclassify polygons, I want to combine smaller polygons into bigger polygons based on their ID (each polygon has a unique ID). I want to regroup ~800 polygons into ~60 polygons. So in ...
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0answers
15 views

Error in merging two raster files (precipitation) in QGIS

The newly computed geotiff shows the extent of both raster layers, but only the data of one. If I use identify features tool it gives me only the values of the visible part not of the other part. I ...
0
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1answer
46 views

Merge shapefiles heatmap

I have to merge few shapefiles into one and create a heat map out of it in qgis. I'm a first user of the QGIS, I tried to do it there: vector-management tools-merge files into one, but it kept to make ...
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1answer
3k views

Merging polygons in ArcGIS Desktop?

I have 300 polygons in a single shapefile, I want merge some polygons together, when I merge two polygons the attribute does not come total count of two polygons, What I need is, when I merge two ...
2
votes
1answer
35 views

What is FME equivalent to ArcGIS Dissolve?

I am trying to dissolve polygons that are spread out across a region. ArcMap's ModelBuilder will dissolve these polygons into a single, multi-part feature. How can I get FME to do this same thing? I ...
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0answers
75 views

Using gdal_merge to merge a large amount of files (in pairs)

I'm new to python and how it can be applied to gis. I have a large amount of MODIS files to go through and I've already extracted, reprojected and converted to GTiff the bands that I need from each ...
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0answers
40 views

Merging all features in a Geodatabase using a common Name

I have a Geodatabase containing a large number of feature datasets storing contaminated site information. Each feature dataset contains a 'site' feature class (for example 'SITE_9345'). What I ...
0
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1answer
2k views

Merging multiple polygon shapefiles

I want to merge two polygon shapefiles in one without losing the attributes using ArcMap 10.1. To be exact I am creating a geological map and have some geologic formations in one shapefile and some ...
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0answers
88 views

Merging polygons interactively in ArcMap using less clicks than Merge tool?

I am looking for an interactive tool which simply merges two polygon geometries by clicking on each polygon and nothing else. I need a workflow for a particular project-step which cannot be automated ...
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0answers
23 views

Calculate normalized summary

I am trying to dissolve polygons having unique values for var1 and then calculate values for var2 to var4. Following is the attribute table. Var2 to Var3 values are dependent on the area. Dissolving ...
3
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1answer
67 views

Issues merging divided carriageways using Skeletron

I would like to merge divided roads from openstreetmap, and a tool that keeps getting mentioned is Skeletron, for example here. I tried the tool on a small geographic area, and the results are fairly ...
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1answer
43 views

How merge osm files with same ID objects?

How merge many OSM files with same ID(between files) to one OSM file? I trying OSMCONVERT but he not add object with same ID in other OSM file.
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1answer
23 views

Field mappings object not functioning with Merge_management

I'm trying to limit the number of fields when I perform a merge to two. Below is the script I have created to do so. However, the merged feature class carries over all fields, despite my use of a ...
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2answers
73 views

Can I merge a polygon and a point Shapefile?

I have two shape files that I want to merge. One is of polygons, the other is a point file. The polygons are missing information in the attribute table that the point file has. In general, the two ...
4
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2answers
2k views

merge shapefile using ogr2ogr and retrieve the attribute of both

Ciao, I have two shape files that I want merge (overlay/intersect) having in the destination the attributes of the two sources file. ogr2ogr file_merged.shp tl_2010_us_uac10_conus_albersUA.shp ...
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0answers
30 views

Merge multiple buffers [duplicate]

Is there a possibility to merge multiple buffers into one single buffer? Illustration: I would like the green buffer to be of one single piece.
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2answers
47 views

QGIS - Edit Surface DEM to Add Buildings

Okay, let me start by saying I'm no expert in QGIS, I'm more into engineering. I'm building a 2D hydraulic model and I would like to add the building footprints (elevated) to my DEM, so flow will go ...
0
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1answer
59 views

Combine several rasters in QGIS

I have a problem combining several rasters into one big raster. Particular annoying is, that I had this problem once before and solved it, but I can't remember how. Unfortunately the other ...
0
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1answer
32 views

Merging/Exporting Data Based on Location ArcGIS 10.3

I am trying to identify demographic characteristics of areas within a 1-mile radius of schools. I have one shapefile with block level census data and another with the school locations. The files do ...
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0answers
21 views

Merging - Aggregation of Rasters

I'm a beginner in Java and a geomatics student. I'am using IntelliJ and I work in Java. I create two raster with the BufferedImage Java class. Raster1 Raster2 These images show for raster1 the ...
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4answers
54 views

ArcPy merge using a list from GetParameterAsText

I am pretty new to ArcPy so bear with me. I am having a hard time understanding how to feed a list of FCs from a "GetParameterAsText" into something like the merge tool. I have my GetParamterAsText ...
0
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2answers
65 views

Unable to draw shape after shapefile merge

I have merged a bunch of shapefiles in ArcCatalog and get the "the selected file failed to draw...." error. Every thing has merged alright in the db. I'm new to GIS and could use some help. Each of ...
1
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1answer
62 views

Iterators in model builder - merging nested files with same filename ending

I am trying to merge files that are nested in different folders by their file names. For example folder 1 contains up to 100 subfolders that each contain a set of shapefiles: subfolder1_A.shp, ...
4
votes
1answer
262 views

Merge tif files with python

I'm also having problems with running gdal_merge.py within another python script and I cannot run it. I already checked a similar problem here. My example is as follows: First I set my workspace and ...
2
votes
1answer
64 views

LiDAR data download, merge and mosaic (Minnesota state)

I have been using the toolbox found here to download LiDAR data for MN (Minnesota-US). The tool is very convenient for downloading multiple tiles but the merge/mosaic function of the tool is ...
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0answers
44 views

Merge vector layers problem with german names (ä, ü, ö…)

When I'm trying to merge (saga merge layers tool) some shape files I get an error log 'ascii' codec can't decode byte 0xfc in position 91: ordinal not in range(128) See log for more details ...
1
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1answer
61 views

Function to merge geojson and csv data in R

I have been using merge() to merge my geojson file with csv data in R. My codes are as follows: map@data <- merge(map@data, csvdata, by.x="ID", by.y="ID") However, after exporting the geojson ...
0
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0answers
47 views

How to merge two rasters when are on the same place

I have two rasters in GRASS GIS. first : raster of DMR, raster picture of relief - created from high values second : raster of buildings where pixels of every building have value of high of this ...
12
votes
2answers
16k views

How can I join 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 project. ...
0
votes
1answer
53 views

How does GIS detect the error causing field in “ExecuteError: ERROR 001156”

I always get all types of errors, and would like to know if i can use the information in these error messages generated by arcpy to fix the issue and repeat the step where it occurred. for example in ...
0
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1answer
58 views

Batch merging field mapping

I made the following script to merge shape files of different format types (poly,line, points): def main(): import arcpy from arcpy import env import globalpath import os ...
0
votes
1answer
505 views

Merging Multiple Paths

Alright, I'm going to start by using Google Earth terminology because that's where the original need for a solution came up. I have multiple paths (54) that I want to merge into a single path. ...
5
votes
2answers
497 views

Extract certain area of contours/satellite images

I have 2 satellite images (jpeg2000 format) and 2 xyz-files from the same area. I am trying to extract certain region from the area including contour lines and the satellite image in order to import ...
1
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1answer
34 views

Adding multiple model outputs to merge tool in ModelBuilder?

I am using ModelBuilder to batch project multiple (site) specific geodatabases' contents then "Merge" like components into a single geodatabase. I have up to eight FCs for each site (e.g. parcels, ...
1
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1answer
62 views

Stratified Random Sampling with large dataset in ArcGIS?

I want to create a Stratified Random Sample with a land cover classification map. The purpose for the Stratrified Random Sample is to produce an Accuracy Assessment. I am using ArcGIS 10.2 with access ...
2
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0answers
267 views

Failing to merge rasters in QGIS

I am new to QGIS but have some familiarity with other GIS software (namely ArcGIS). I want to merge a number of LiDAR digital elevation model (DEM) tiles (specifically, 30 individual tiles) to ...
1
vote
1answer
33 views

Merge 2 Pointlayers with same coordinates but different attributes in QGIS?

I have two layers with points who have exactly the same coordinates but different attribute fields. I would like to merge the tow layers so that I only have one point at each location who has the ...