Questions tagged [merge]

To combine two or more parts into a larger whole.

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119 views

.nc file flipped and rotated in qgis, no CRS, need to be able to project properly to make a masl

I have two separate files, one is my Land Surface Temperature and the other is the Grid with the lat/lon both are .nc I wanted to add my grid, which comes in as an attribute table, to my Land Surface ...
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44 views

Trying to merge convert mult linestrings with breaks

I am trying to clean up a road network file. The roads are encoded as multlinestrings I want them as linestrings. Normally I would use st_mergeline to convert from a multilinestring to linestring. ...
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136 views

Converting ESRI Grid to GeoTIFF and writing to NetCDF

I'm trying to loop through and read a stack of ESRI grids in a specific projection, convert them to GDAL and then write them out to a NetCDF, but I've never performed this from scratch and I'm running ...
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44 views

Using Workspace To Raster Dataset tool in ArcGIS Desktop?

I am going to use the "Workspace to raster dataset" tool to merge several tif files. I have 4 test images (same area, same geographic, just different in time). The input workspace has been set up, ...
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129 views

Geoprocessing tools won't work with the WDPA (World Database of Protected Areas) database

I am trying to run spatial stats (% area of overlap of various datasets) with the World Database of Protected Areas marine shapefile. It's a global collection of marine protected areas, so it's a big ...
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1answer
103 views

Merging OnTheMap's point jobs data with Census Block Groups shapefile using ArcGIS Desktop?

I'm trying to figure out an easy way to take county level jobs point data (exported from the Census bureau's OnTheMap) and merge it with census block groups in order to give each block group a total ...
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62 views

Can't upload .osc to local Rails Port instance

I have been experimenting with a local instance of Rails Port. I used osmosis to load a small pbf of my neighborhood. Using JOSM I edited some data on the local instance. Then a few weeks later I ...
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2answers
314 views

Adding two vector shapefiles together (one on top of the other) in QGIS [closed]

I understand how to merge two vector shapefiles together but I don't know how to layer one layer on top of another one and export it to make it permanent? I would like to add the GreaterMan shapefile ...
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1answer
594 views

Merging all feature classes with same name nested in multiple geodatabases using ArcPy?

I am using arcpy and I want to extract a specific feature class called "building" nested in a number of geodatabase within my workspace. Here is the code: import arcpy import os workspace = "C:/...
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59 views

Overlapping features and attributes help

I'm using ArcMap 10.3 and am looking for some guidance on how to "connect" two layers. Layer one contains non-overlapping polygons (site) Layer two contains overlapping polygons (species) I would ...
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1answer
52 views

Why does Merge ignore one specific shapefile?

I am working with ArcGIS 10.3.1.4959 (License type: Advanced), and am trying to merge 3 point shapefiles together using the Data Management Tools -> General -> Merge functionality from ...
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67 views

Why do merged rasters in QGIS look 'patchy'?

Poor title for this question, but I can't think of a better way to explain it. I have merged two rasters. I want the joins to be seamless, but there is an obvious line where they meet... I've tried ...
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1answer
143 views

Retaining UNIQUE attribute fields after dissolving a shapefile

I tried the solution to "Dissolving shapefiles but retain attribute fields" but my original shapefile (3000 rows in attribute table) has many duplicate values in the field that I want to retain so ...
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225 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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618 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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408 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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50 views

Combining two layers and removing their overlap using ArcGIS Desktop?

I am using ArcGIS Desktop 10.0. I have two polygon layers showing storm surge and I want them both to be combined to look like a smooth transition into each other. However, they have an overlap and ...
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2answers
3k views

Extracting mean elevation values from DEM based on multi-polygon shapefile?

I'm trying to get the overall average elevation for different areas delineated within a polygon. Originally, I converted the Digital Elevation Raster (DEM) to a polygon and tried to merge the ...
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6answers
495 views

Which program that merges excel data onto shapefiles is easiest to use?

some options for merging looks like fusion tables, vizmaps, and these 2 http://mapbox.com/tilemill/docs/guides/joining-data/ http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?TopicName=About%...
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3answers
6k views

How to merge line and polygon?

Is there anyway to merge a line Shapefile Feature Class and a polygon Shapefile Feature Class? ERROR 000468 Input shape types are not equal
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2answers
416 views

styles when merging shapefiles in qgis

Trying to create something for mapstory.org It wants it in all one shapefile. So I create a polygons and lines (with time attributes) in qgis 1.8 Then merge them all into one shapefile, how can you ...
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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
39 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 ...
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1answer
69 views

Sum fields in ArcGIS

I need to merge fields in rows in the attribute table based on common values of some attributes and calculate the sum of the area associated to them. How can I do that?
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1answer
42 views

Merging/combining huge point (layer) data using ArcMap?

i have 2 point feature layer (file GDB), each layer have a lot of point feature (records with depth value), around 80.000.000-100.000.000 records/point. there are overlapping area between those layer (...
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1answer
107 views

How can I combine multiple personal geodatabase with same format in Access file? [closed]

I have multiple geodatabases with the same format in features and attribute tables, their difference is thier location, how I can combine them in one file in Access format which has one attribute ...
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1answer
142 views

Unable to merge two shapefiles (created from text files) using ArcPy? [closed]

I am trying to merge two shapefiles together created from two text files. I am new to Python and managed to get the text files into shapefiles, however, when trying to merge the two newly created ...
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1answer
82 views

Python scripting error (merge)

I've been trying to use this code to add a field to, merge, and sort multiple feature classes: import arcpy, os arcpy.env.workspace = r'W:\S&P\s&p techs\Emily\TownshipsDissolved\...
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2answers
2k views

Build a model sequence or merge models in ArcGIS

This is surprisingly difficult to search for, so I'll ask though it may be a silly question. Is it possible to chain several model-builder models in sequence, such that one will automatically run with ...
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1answer
60 views

Merging two shapefiles using ArcPy?

I have two point features with names o.shp and d.shp. I want to merge both of these files and create a new shapefile with merged attributes. How do I do that? Tried code that did not work: arcpy....
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1answer
703 views

Creating model to batch select polygons by attribute and merge them together

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

Complicated raster clipping and merging

I have a DSM and a DTM in georeferenced TIFF format. I have two shapefiles, one for buildings and one for trees. I want to clip the DSM by both shapefiles separately producing two new files which are ...
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1answer
73 views

Deleting layer which is overlapping in ArcMap? [closed]

I had merged two shapefiles. How to delete a shapefiles which is I give a red sign? It's like overlapping another shapefiles so I got trouble when I colouring them.
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1answer
63 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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2answers
136 views

Creating script for clipping and buffering using ArcPy [closed]

You are a GIS analyst for the National Park Service. You have been asked to create a dataset showing "wilderness" areas in a national park. These areas are defined as 2,000 feet away from a paved road,...