All Questions
Tagged with large-datasets arcgis-desktop
22 questions
0
votes
1
answer
239
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Tessellation on huge dataset
I have a set of CSV files with lat/long for points spaced every 500 meters apart. There are several files that collectively span a huge area across the Nevada/Utah border.
I need to create a ...
- 950
-1
votes
2
answers
106
views
Interpolating using ArcGIS Pro [closed]
I have 2 datasets. They have exactly the same columns and the data for the second dataset was collected the day after first dataset.
When I perform Diffusion interpolation with barriers on the first ...
- 121
0
votes
0
answers
77
views
How to calculate and store (ArcMap) slope on huge mosaic dataset?
I have a huge raster dataset stored in a geoDB (DHM with 2m resolution for all of Switzerland), uncompressed size ~75 GB. I want to use the ArcMap Slope tool (or another tool would also work) to ...
- 2,554
0
votes
1
answer
35
views
Creating a layer with selected values (divided by commas) from another layer - query or model needed
I have a very large dataset in ArcMap 10.6 and I would like to create a subset that selects only rows that have specific attributes (some of them with special characters) from a field that in my case ...
- 33
0
votes
1
answer
138
views
Counting points contained in polygon for large number of points in ArcMap?
I'm trying to determine the number of points within a set of polygons for a large number of points. There are 2GB of lat-long coordinates in a CSV file, and I want to see how many are contained in ...
0
votes
0
answers
46
views
Union very large layer in FGDB and only keep one polygon that is overlapping?
I'm trying to union an exceptionally large layer (45k features) of footprints with many of them largely overlapping. I'd like to union this layer but I'm having trouble due to the size of it. The end ...
- 13
0
votes
0
answers
112
views
ArcMap fails to convert all records from CSV file using Table to Table geoprocessing tool
I am using the table to table geoprocessing tool to convert a CSV file with nearly 5 million records into an GDB table in a file geodatabase. The tool succeeds each time, but only 603 records are ...
- 53
0
votes
0
answers
1k
views
Merging multiple rasters (Very large dataset)
I am working on project to create a DSM raster for whole Kentucky. I will have over 46000 tiff tiles and each one is about 10 Mb and one band. Normally, I use Mosaic to New Raster Tool but this time ...
- 513
3
votes
1
answer
1k
views
Displaying LiDAR data with too many points in ArcMap?
I have imported LiDAR data into ArcMap in the shape of a Las DataSet with twelve .las files (contains over 100 million data points).
I believe the file itself is working properly. However, no points ...
- 153
2
votes
2
answers
2k
views
Dice a polygon with over 21 million vertices in ArcMap?
Based on posts like this I suspect I'm bumping up against issues when trying to work with a feature class that contains features with a single very complicated polygon. These errors include 000426, ...
- 341
1
vote
1
answer
266
views
Calculate nearest town for 2900 lot centroids
I have 16 town point shapefiles.
I have a layer of 2900 centroids for lots.
I need to determine the nearest town for each of the centroids.
The option I came up with is to Split by Attribute by ...
- 61
0
votes
1
answer
979
views
Joining CSV-Generated Datapoints with Shapefiles in ArcGIS Desktop?
I have a question about joining data points (with a large amount of information) with shapefiles in ArcGIS Desktop:
I have imported a CSV file into GIS. This CSV File is quite large: each row ...
- 61
2
votes
1
answer
426
views
Split millions of points in shp with 100'000 points each [closed]
I havie over 8 million points in a shapefile. Now I would like to split these 8 mio points into parts of 100'000 points each, in order to facilitate further calculations with these points.
In the end ...
- 71
0
votes
1
answer
234
views
Identifying the closest polygon to a point dataset
I have two large data sets one point and one polygon.
What I was looking to do was identify which polygon is closest to each point.
Hopefully I was looking for a automated process as the point data ...
- 11
0
votes
3
answers
445
views
Rendering large amount of data in ArcMap? [closed]
Is there a way to load 17 big cadastar plans of urban area in ArcMap and make it "invisible" and use data only when printing to PDF?
Total amount of data is too big to work with and I use it only as ...
- 181
1
vote
0
answers
666
views
Speeding up ArcGIS arcpy.Merge_management for MANY files? [closed]
I'm currently running a script that is using the arcpy.Merge_management function to merge roughly ~1500 shapefiles together.
When I tried this with much smaller test runs, it ran perfectly.
Now ...
- 51
1
vote
1
answer
95
views
Working w/ Shapefiles Containing 50,000 to 300,000 Features
I work daily with shapefiles that are quite large in number of features using ArcGIS. Sometimes I am able to perform operations (joins, selections, exports, etc) on these shapefiles (though they do ...
4
votes
2
answers
2k
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 ...
1
vote
0
answers
211
views
Managing Very Large Vector File Geodatabases
I am currently looking for ways to more effectively work with an extremely large 10,000,000 (+) vector features contained in a file geodatabase. Its just very cumbersome to work with in ArcGIS (v 10....
- 399
3
votes
1
answer
118
views
Unexpected vertices from the ouput of ArcGIS union tool
I have found some unexpected behavior of ArcGIS union tool. My assumption was that this tool will never add any new vertex to the output layer, but this was not the case.
I have run the ArcGIS union ...
- 1,924
1
vote
0
answers
175
views
How to Buffer with Dissolve ALL on very large polyline dataset? [duplicate]
So I have a fairly large polyline network covering a decent chunk of North America, containing just shy of 900,000 table records. I want to do some very simple "GIS 101" kind of processing to it -- I ...
- 537
12
votes
3
answers
20k
views
Measuring performance difference between Merge and Append in ArcGIS Desktop?
Often I find myself in a situation where I don't care whether or not my tool produces a new feature class, but I do care how long it takes to combine all of my large datasets. Does it take longer to ...
- 211