To combine two or more parts into a larger whole.

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20 views

Merge layers (SAGA) ERROR

with QGIS 2.10 it is not possible to merge vector layers with the "Processing-Saga" tool (merge layers). The following error log comes up: Algorithmus Merge layers startet... shapes_tools "Merge ...
2
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0answers
27 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
32 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 ...
2
votes
2answers
39 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
votes
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 ...
1
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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
votes
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
53 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 ...
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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
47 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 ...
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
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 ...
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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 ...
0
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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 ...
1
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1answer
44 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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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 ...
3
votes
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 ...
1
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2answers
74 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 ...
1
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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 ...
0
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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.
0
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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
60 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
33 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 ...
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 ...
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4answers
55 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 ...
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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, ...
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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 ...
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0answers
45 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 ...
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 ...
0
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1answer
54 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
59 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 ...
1
vote
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
votes
2answers
110 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 ...
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
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 ...
1
vote
2answers
79 views

How to combine/merge *.lul files to shape format?

I got multiple files, say 2500, I never heard about lul files before. anyway I visualised it in QGIS after number of attempt in Autocad map 3d and ArcGIS. it is basically like Basemap:Road,parcels, ...
1
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1answer
41 views

Merge lines where point feature class exists

I have a polyline feature class and a point feature class. Two lines from the polyline feature class come together (in most cases they are snapped together) where a point exists in the point feature ...
2
votes
1answer
86 views

Create random points in ArcGIS on a polyline in a polygon

I am trying to create 100 random points, 1 within 500m of 100 points I already have. I have created a buffer and can easily create 1 random point in each, but now I want those points to lie on a ...
1
vote
1answer
43 views

Merge or dissolve line features based on two or more attributes

I am working in Arcmap 10.2 and I would like to do the following according to the example table below, but I do not have a clue on how to do this. I am working in ModelBuilder. Is there a tool for ...
1
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0answers
28 views

Nested iterators - batch merge from multiple outputs

I'd like to ask you some advice for nesting an iterator (from a submodel) into a master model which also include an iterator (see pic attached). The whole purpose is to 'Merge' the iteration output of ...
0
votes
1answer
79 views

Merge touching polygons with keeping their attributes

I've got a layer of polygons Although they all in the same layer, each polygon own some unique data like the date of this polygon and an amount it possess (a number). I want to join/merge all the ...
2
votes
1answer
85 views

How to merge/combine several tables in geodatabase into one table using ModelBuilder?

I have over 50 csv files that have the same data structure and I need to merge them into one table. As I need to build a model I have successfully imported all the files into a File Geodatabase. ...
1
vote
1answer
32 views

Does CartoDB support the SQL MERGE command?

I am developing a mechanism that uploads records to cartodb - first by importing the records to a new table, and then insert the records from the new table to an existing table. The problem is that ...
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votes
1answer
36 views

Merging bulk data in 10.2 ArcGIS

I have to merge 50 datasets. All datasets have same feature classes. please suggest me fastest way. append, merge, load, all methods will take time. please suggest me fastest way.
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0answers
23 views

merge rasters using mosaic to new raster - wrong output

I am attempting to merge two raster datasets into one output dataset. I am using the Mosaic to New Raster tool. Unfortunately, the output does not display the same categories as the original input ...
2
votes
1answer
63 views

Calculating Distances Between Geometry Columns of Differing SRIDs

I am attempting a relatively simple task but have been running into trouble. I have two tables, one which has lat and lon points which were geocoded using google (SRID 3857) and another table which ...
2
votes
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 ...