To combine data from different files

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1answer
353 views

Merging OSM files with OSMOSIS and import to Postgres with OSM2PGSQL

I have a problem merging and then importing two OSM files. I downloaded to distinct .osm-files from cloudmade. They are not sharing any geographical attribute (as the first is the country Monaco, the ...
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0answers
39 views

Merging shapefiles to one, rearrange columns?

I am trying to merge two shapefiles which both contain polygons representing properties in QGIS 2.2. One problem is that the names of some of the columns in the attribute table differ between the two ...
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1answer
79 views

QGIS 2.2 Raster Merge losing color data

I'm trying to merge a couple of GeoTiff maps using Raster > Miscellaneous > Merge but the merge is only coming out in grayscale. The geotifs are using palettes color. How do I get the merge to keep ...
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1answer
424 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
69 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 ...
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0answers
168 views

Merge overlapping DEMs with irregular boundaries

I have a 10m DEM covering part of a state, a 20m DEM covering the whole state, and a 90m DEM covering the whole country. How can I merge them together, getting the best quality available in each area? ...
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1answer
49 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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1answer
87 views

Merge Two Polygons Using Editor merge in arcGis

i want to create a ArcEngine function using .net that allow to do the same thing like (see picture): select 2 polygons click merge Is there somebody who can help please!! Sincerely
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0answers
97 views

Merge polygons into a single polygon [duplicate]

Possible Duplicate: How to aggregate detached polygons? Is there any open source java library to merge polygons? My use case is that i have a few building feature polygons close by. I need ...
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1answer
521 views

How can to merge DEMs in ArcGIS for Desktop 10.2?

I'm trying to merge some dems downloaded from USGS. When I used arcgis 9.2 there was an expression to be used in raster calculator to do that. I used it again but unfortunately it doesn't work in ...
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1answer
132 views

Is there anyway to stack or merge .hdf files in R Studio?

I would like to be able to merge, mosaic, or stack several .hdf files. Does anyone know the package or library i should be looking for the tool to do this?
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1answer
152 views

How to merge output shapefiles in model builder

I have a layer with several polygons and a road map. I need to take each polygon and use it to clip the road map, dissolve all of the road records into one, and then merge the polygons into one ...
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2answers
137 views

Batch merge large numbers of.asc grid files

I have >2.5k .asc grid files which I need to merge into a single overarching dataset. I would like to avoid having to convert them into esri grids first so was looking to use QGIS (v.2.0). I am ...
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1answer
75 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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1answer
75 views

Geoprocessing>Merge and arcpy.Merge_management() producing different results?

In ArcMap 10.2.1 I have three feature classes in geodatabase "MyGDB.gdb". Let's call the feature classes "A", "B", and "C" respectively. I am merging the feature classes using Geoprocess > merge. ...
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3answers
64 views

How create geographic column in postgis table?

I merged several point shape files in postgis, but when I load the new merged shape in QGIS it is not possible to see points in the main window. To create the merged table I used this piece of code ...
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3answers
90 views

Grouping Multiple Raster Layers

My question is how to create multiple raster layers group, for example when using several aerial photos. I wish to group the layers into one so that I can edit/select as a batch rather than having to ...
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1answer
150 views

ARCGIS 10- Cutting down a tiff file layer to a smaller polygon?

I have a dynamic land map featuring open forest, closed forest ect of an area which is a tiff layer file. I want to be able to cut the layer file to my area of interest, the polygon I created? I also ...
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1answer
280 views

How to batch merge rasters using FOSSGIS tools?

I'm working with QGIS 1.8 (gdal 1.9.2) and GRASS 6.4.3...but on Windows 7. I "just" want to merge my raster. I've got a folder with 50 GTiff raster from Lidar data. The aim is to merge raster ...
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1answer
2k views

QGis: Merge intersecting polygons into one which are part of the same feature

I'm not a GIS professional so I hope I use the correct wording, at least I hope you understand my question. Let's say there are 5 polygons in the feature A. In the shape file there are more ...
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1answer
172 views

st_linemerge does not work

I have two LINESTRING's which intersect by checking with st_intersects. Then i try to collect/union both linestrings into one Multistring, then try to merge with st_linemerge, but it fails with: ...
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2answers
46 views

Make lists of shapefiles using loop

There are the following shapefiles in workspace. L01-1983_01.shp L01-1983_02.shp ... L01-1983_46.shp L01-1983_47.shp L01-1984_01.shp L01-1984_02.shp ... L01-1984_46.shp L01-1984_47.shp ... ...
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1answer
74 views

How to create a grid after merging shapefiles?

Follow up question to QGIS Model Builder Script - Possible to merge layers in a folder? I think I'm missing something very obvious here but can't seem to find it. After merging shapfiles in a folder, ...
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1answer
40 views

How to merge 2 shapefiles in ArcObjects

Using ArcObjects SDK for Java, I have the full path of 2 shapefiles: String in1, String in2, and I want to merge them using the geoprocessing tool Merge. I tried to several methods: ...
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1answer
91 views

Adding additional columns of data to CartoDB table? (in-place / no merge)

Is there any quick way to add some data to a table without either a) merging / replacing the whole thing or b) having to do it one cell at a time ? example: i have a table loaded now with the ...
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1answer
79 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. ...
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4answers
656 views

How to merge 48 separated US States layers into 1 layer, using MapInfo?

They are Census Block layers. The person on the website separated them into states so they can be download easier. I uploaded each states separate layer into MapInfo. Now I need to merge the files ...
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1answer
282 views

ArcGIS 10 - Model for batch select polygons by attribute and merge them together

Is there is a way to create a ArcGIS 10 MODEL to: 1. batch select polygons from the same layer by attribute 2. merge these polygons into one 3. repeat this for all polygons shearing the same ...
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0answers
15 views

How do I change the order layers are displayed in in MMQGIS?

I am dealing with hundreds of different layers, all of which have one of 6 names - not by choice, that's just the way they show up when I import them. I am trying to merge all those with the same ...
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1answer
28 views

Merging vector layers using QGIS? [duplicate]

I have dozens of vector layers that I want to join together in QGIS. They have identical fields. How do I do this?
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0answers
19 views

ArcPy select and merge dropping records from table?

I'm working on a python script for ArcGIS using the arcpy module. I have ArcGIS 10.1 and Python 2.7 on Windows 7 machine and using Notepad ++ and IDLE to run it. The script selects specific records ...
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0answers
32 views

How can you calculate the union/merge two polygons in ogr2ogr?

I want to calculate the union/merge two overlapping polygons using ogr2ogr (as I have 300+ to do). I want the output to be the same as you would get if you used the 'Merge shapefiles to one' command ...
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1answer
55 views

Possible to run “Merge shapefiles to one” algorithm from Python script?

Developing a python script in QGIS 2.2, I can run algorithms from the Processing plugin fine such as those from QGIS geoalgorithms and SAGA. Can you do the same for the algorithm "Merge shapefiles to ...
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0answers
56 views

How to keep all the unique columns of the shapefiles after merge?

Writing a script where the user is asked to select a directory which contains Folder_1 and Folder_2, both containing shapefiles and run various algorithms. The basic logical process of the script is: ...
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0answers
7 views

QGIS merge selected features tool malfunctions due to geometrical errors

The issue occurs using the 'Merge Selected Features' tool when there are geometrical errors in the features (not all are picked up by the 'check geometrical validity' tool). In 2.2 Valmeria, the ...
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0answers
19 views

QGIS-Merge or create virtual raster files without losing definition?

I am new to QGIS and relatively new to GIS (so please be aware I am not that familiar with a lot of technical terminology). I am trying to merge several tiff files as either a virtual raster or a ...
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0answers
20 views

Things to consider while and after merging DEM-Tiles?

In some tutorials it is said that after merging you should stretch the “histogram to full dataset” (also mentioned in the QGIS Training Manual). Is there anything else you would suggest doing after ...
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0answers
10 views

Do I get the same result when merging and clipping DEM geotiff files using different steps?

I merged and clipped 12 GeoTif Files with GMTED2010 Data (15 Arcsec) obtained from Earthexplorer to get a large map covering Europa and the Near and Middle East. First I tried Variant A) Raster – ...
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37 views

Why does merge/mosaic four DEMs into one give ERROR 01042?

I'm unable to merge 4 dems into one using ArcGIS Home 10.2. Raster Calculator, adding them, gives me the error: RuntimeError: ERROR 010422: Error in processing the environment mask. I created a ...
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2answers
44 views

How to set Merge output as Select Input in ModelBuilder?

I'm using ModelBuilder. I tried to take the Output from the Merge tool as Input to the Select tool. But it doesn't work. I'm trying to Merge 90 Shapefile lines into one. Then "Select" some features ...
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0answers
48 views

How do I set the xydomain extent and merge point feature classes in a geodatabase

I am trying to select point feature classes in a feature dataset and merge them while setting the XYDomain using Python. If I do the merge manually and change the environment settings to use a ...
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0answers
35 views

Merging parcels but keeping Geometry seperate

I am working on updating a parcel layer we received for a project, and I have duplicate parcelID's for parcels and I have been merging these to create 1 parcel as to not have duplicate ID's. My ...
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0answers
55 views

CAD to GDB import using ValueTable function

I have several CAD files (DWG) that I want converted to Feature Classes within a file GDB. Each feature class will be based on a polyline attribute "LAYER" value, so I have a query filter applied ...
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0answers
30 views

Table merging: multiple corresponding objects

I'm working with a shapefile which has all the municipalities of France as areas, identificated with their unique code (INSEE code). I want to join a table, where every historical monument is ...
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0answers
43 views

Merging styles in ArcGIS, changing default Style location?

Just upgraded to 10.2.1 and I have 'lost' all my personal styles. I have a couple questions. Is there a way to merge my three different style files into one? Is there a way to change the default ...
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1answer
52 views

how to correct merge rasters with different projections? [closed]

how to merge rasters with different projections with correct transforn? For example EPSG:32636 and EPSG:32637 if i do it with gdal_retile command, i have correct view for EPSG:32637 rasters and ...
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1answer
39 views

Make hangs when attempting to build zip code TopJSON file on Mac OS X

Thanks so much to all involved with the us-atlas project. I am learning how to use d3, leaflet and other tools to make maps and this is really helpful. I have grabbed files from the us-atlas project ...
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0answers
52 views

Getting a final count of integrated points from map [Add XY, Merge, Integrate]

I'm trying to get a final count of points in my data, using ArcGIS for Desktop, 10.1 with an advanced license. The data I'm working with is about 2,000 addresses from 10 sets of data taken by ...
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0answers
92 views

How to merge raster quadrangle tiles in qgis?

I've downloaded some dem tiles from here http://www.granit.unh.edu/data/search?dset=dem/dem174, which I'd like to merge into a single smooth digital elevation model usinq QGIS. So far I've tried ...
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0answers
67 views

QGIS merge rasters error

I've been trying to merge some raster tiles at work and I've been getting an error message saying I don't have the correct permissions. This works fine on my home pc. Any obvious reasons for this? ...