All Questions
109 questions
34
votes
5
answers
13k
views
Bulk load multiple shapefiles into PostGIS
I've got over a hundred data layers in shapefile format that I want to upload into a PostGIS database. They are all in the same projection, but represent different data layers so they do not have the ...
- 23.2k
7
votes
2
answers
4k
views
Does Calculate Value (Model Only Tool) work correctly in tools run in Batch?
Am I correct that if my model has a model-only tool (Calculate Value), and then I run the model as a batched process, it will not run the Calculate Value expression?
I wrote a model to upload, ...
- 371
12
votes
4
answers
23k
views
Exporting several files at same time in QGIS
I have a lot of .TAB files open in QGIS and I want to save them to .SHP so I can work with them in ArcMap.
Is there a way to save/export all these files at the same time or do I really have to "...
- 175
18
votes
2
answers
19k
views
Changing color of raster images based on their data values - gdal [duplicate]
Let's say I have 1 band raster images with Gray Color Interpretation and I want to change their color based on their data values. Data values -1, will be Blue, -0.5 will be Light Blue, 0 will be ...
- 517
2
votes
2
answers
3k
views
Using sieve filter in ERDAS Imagine and/or ArcGIS for Desktop?
Where can i use a sieve filter for my supervised classification?
Can i do it in Erdas Imagine or in ArcGIS?
I can't find it anywhere.
- 21
10
votes
1
answer
6k
views
Batch Georeferencing in ArcMap/ArcPy?
I have about 50 pdf maps that I would like to batch georeference and/or georectify. I've saved one as a jpg and georeferenced it manually and would like to automate the rest which are in the same ...
- 181
9
votes
5
answers
17k
views
Batch exporting MXD to PDF files using ArcGIS Desktop?
Nico Burgerhart made a fantastic script called "Batch export MXD to PDF" back in 2008.
http://arcscripts.esri.com/details.asp?dbid=14872
Any ideas how to implement it in ArcGIS 10? Something ...
- 2,059
7
votes
2
answers
14k
views
Batch Clip in ModelBuilder of ArcGIS for Desktop?
I have multiple rasters and feature classes that I want to clip to a study area.
I am pretty new to ModelBuilder.
I know you can right click the clip tool to batch clip outside of ModelBuilder but ...
- 869
12
votes
5
answers
13k
views
Batch Clipping in ArcGIS Desktop using ArcPy?
I've come across a few similar questions for older versions of ArcGIS, but haven't found a suitable answer for ArcGIS 10.
I have two polygon shapefiles that cover a large area (e.g. an entire State/...
- 10.7k
7
votes
2
answers
5k
views
How to use QGIS Atlas with multiple layers/files per coverage?
I've got 30 contour datasets that all sit over the same extent. Each contour set is in its own file. I also have 30 extent polygons for each contour set as a separate file.
Can I use Atlas to ...
- 637
5
votes
2
answers
2k
views
Retrieving LiDAR metrics from relative vertical layers of point cloud?
I need to obtain the proportion of all returns within 5 equally spaced height bins between the cutoff (1 meter) and the maximum height value. I need to get this proportion of all returns for 1000 ...
- 347
16
votes
1
answer
5k
views
Batch geocoding in R
I need to find a package in R or source code in R that performs batch geocoding using Bing, Yahoo, OpenStreetMap. Do you have any suggestions?
- 161
12
votes
6
answers
23k
views
Batch convert GeoTIFF's to KMZ files
I have about 600 GeoTIFF map files, each about 140 mb in size that I'd like to convert to KMZ files so people can download them and use them with Garmin GPS units, Google Earth, etc.
Anyone know an ...
- 525
8
votes
3
answers
18k
views
Load a raster file directly in Leaflet
Is it possible to load a raster file (e.g. GeoTIFF or Erdas img) directly into a Leaflet map? If so, can you guide me to the correct documentation or method to do this?
I am trying to do this with the ...
- 529
5
votes
1
answer
5k
views
Open Source Alternatives to ERDAS IMAGINE ATCOR?
I have been using ERDAS IMAGINE's ATCOR extension for ATmospheric CORrection of ASTER imagery.
What opensource options exist for atmospheric correction of ASTER Level 1B products?
I'm primarily ...
- 51.8k
3
votes
1
answer
1k
views
Converting MapInfo TAB to shapefile and reprojecting with ogr2ogr
I'm trying to reproject, move from tab to shp and rename all the .tab contained in a folder tree using ogr2ogr.
I'm working with Windows 7, QGIS 1.8 installed with advanced OsGeo4w and gdal 1.9.2. I ...
- 279
2
votes
2
answers
2k
views
Dividing shapefile into multiple shapefiles using an attribute value in QGIS Graphical Modeler
I have a shapefile with a column that have project references, I want to create a different shapefile for every project reference there is.
Note that the project references are not unique in the sense ...
- 221
1
vote
5
answers
6k
views
Batch convert xy to shapefile
I have about 300,000 CSV files which I want to convert to shapefiles, but ArcGIS and QGIS can only convert one CSV at a time.
Are there any ways to batch convert my CSVfiles?
x y z1 z2 z3 z4
1 2 3 ...
- 449
14
votes
5
answers
16k
views
Renaming Shapefiles in QGIS?
I have a huge list of layers in a project that are named in a foreign language. I want to translate and add the English title to the name.
When I right click on a layer and choose Properties -> ...
- 645
8
votes
2
answers
3k
views
How to generate TFW files for a list of images?
I have a few digital images that are not georeferenced. E.g.:
Img01.tif
Img02.tif
...
Img99.tif
On the other hand, I have a text file, which contains georeferencing information for these ...
- 83
7
votes
2
answers
3k
views
Creating shapefile of satellite image footprints?
I'm looking for a tool or a workflow to compute satellite image footprints, for a large number of images across directories, and produce a shapefile. Ideal work flow would be:
fire up tool
point to a ...
- 1,543
6
votes
6
answers
5k
views
How to create multiple QGIS layers from multiple text files?
I have a few hundred txt files (each representing a line of a river bed profile) that I need to load as (point-) layers in QGIS. Partial example:
4504764.8331;5374251.3024;397.8871;2
4504764.7761;...
- 985
6
votes
2
answers
8k
views
How to translate tens of images from a directory as a batch with gdal_translate?
For example i have a dataset of images in *.cub format like
$path: /work/120614/mg_1164/
f01.img.cub_E.cub
f02.img.cub_E.cub
'
'
f0n.img.cub_E.cub
for converting a single image I use gdal_translate ...
- 69
3
votes
2
answers
390
views
Unexpected result using ModelBuilder in batch?
I am running a model which I created with ModelBuilder at 10.3. The model is supposed to make a selection by attribute on a feature layer, and use that layer to clip a raster. The model is working ...
- 3,785
2
votes
1
answer
352
views
Batch processing LiDAR files (.las to raster) with PyQGIS?
for layers in glob.glob("*.las"):
processing.runalg("grass7:r.in.lidar", "input_las",5,1,"",1,100,"","",5,"","",False,True,True,"331289.57265,337990.42735,4558790.0,4560890.0",0,layers+"E:/...
- 101
11
votes
2
answers
1k
views
What's the batched Refactor Fields tool "field mapping" syntax in QGIS?
In QGIS, there is this nice tool "Refactor Fields" in the Processing Toolbox :
Using it on a single layer is fairly straightforward.
However, when you plan on using it in a batch mode, one can see ...
- 7,888
8
votes
1
answer
3k
views
nested iterator, 2 iterations in one model, collect values, cell statistics, batch processing dialogue box
(ArcGIS10, SP2, ArcInfo)
This is my model, and it works perfectly, but...
I do have a large amount of data to process. The interim output files (from raster calculator, collect value) would reach ...
- 271
7
votes
3
answers
4k
views
Calculating area of vegetation in raster file?
How do I calculate area of several vegetation types in a raster (.img file type) image. They are color coded. Am using QGIS (1.8.0) and ERDAS 9.2.
- 79
7
votes
1
answer
3k
views
Batch export from multiple QGS projects to image or PDF
I'm looking out for a way to batch export to PDF or image many composers spread in many QGS projects, the same way the plugin Map Printer does, but on a large number of projects at the same time. ...
- 7,888
5
votes
2
answers
12k
views
Replacing Raster Values in Ras1 with Ras2
I have two rasters Ras1 and Ras2.
I want to change the Ras1.
In Ras1, there are few areas, lines, points I am interested having nodata cells and wrong data cells.(limited to interested areas only ...
- 812
5
votes
1
answer
734
views
Batch processing of numerous shapefiles in common folder with PyQGIS
I am trying to batch process numerous shapefiles in a common folder. I am getting an invalid syntax error right after the processing.run algorithm passes the TARGET_CRS words. Any ideas what I may be ...
- 73
4
votes
3
answers
869
views
Raster Caculator Qgis 2.6 v/s Gdal_calc.py by Terminal
I need calculated monthly mean of Snowcover data by MODIS product, and then modify this script gdal_calc.py in this section
# create alphabetic list for storing input layers
AlphaList=["A","B","C","...
- 139
4
votes
0
answers
372
views
Launch Atlas composer generation from command line
I am using QGIS 2.2 and have configured a composer with atlas generation. I would like to launch this atlas generation every day.
The idea is to write a batch and launch it with a cron.
Is it ...
- 113
4
votes
0
answers
2k
views
Batch Convert Folder of GPX to SHP in QGIS [duplicate]
I have a few GPX files (up to 35 Mb, with a few tracks each one) that I want to convert to SHP. QGis is faster and easiest, than ArcGIS to convert GPX tracks to SHP, but is there a way to batch ...
3
votes
1
answer
997
views
Getting maximum values of attribute of multiple Shapefiles merged into new shapefile in QGIS?
I have thousands of points in multiple shapefiles. I want to get the maximum value of an attribute of each shapefile. Then I want to merge all the maximum values to a new layer.
Is there a way to ...
- 83
3
votes
1
answer
2k
views
MOD 35 Cloud Mask HDF in ENVI
I am having difficulty getting ERDAS or ENVI to correctly read and display cloud mask attributes from MOD 35 HDF files. They files are displayed as 0-255, whereas I expected some kind of code 0, 1, ...
- 91
2
votes
2
answers
2k
views
NoData Value = 0, problem when creating NDVI, Erdas
I try to create an NDVI from Landsat and ASTER satellite images using Erdas Imagine. In Erdas, the satellite images have a nodata value of 0.
After creating an NDVI, the nodata value is still 0, but ...
1
vote
2
answers
8k
views
Getting print statements in Python script to print through a batch file
I'm starting to learn Python and batch files. I have a Python script which selects data by location and exports the selection to a new feature class. The script runs just fine - included in this ...
- 1,083
1
vote
1
answer
974
views
Black edge (NoData pixels) in Landsat 8 color correction in ERDAS
My boss asked me to mosaic and color-balance multiple Landsat 8 tiles for presentation. I tried to do that in ERDAS but it returned weird result as below:
Obviously it's the black edges or nodata ...
- 333
0
votes
1
answer
654
views
Converting tif to format for TIMESAT using BEAM VISAT or ERDAS IMAGINE?
How can I convert tif image into a format for TIMESAT software to create a time series?
I am using BEAM VISAT or ERDAS IMAGINE program.
- 1
0
votes
1
answer
3k
views
Imagine files between ERDAS and ENVI
I have ENVI 5.0 , ERDAS 2013 SP2, and ArcGIS 10.1 SP1. Every time I save an Imagine file from ENVI 5.0 and open in ERDAS 2013 and it seems like ERDAS does not like it and it would not open and would ...
- 4,139
18
votes
4
answers
13k
views
Need to Quickly Add Multiple Layers From Multiple Folders To QGIS Project
I have downloaded several imagery Zip files (content of each is jp2, jpg, jpw, xml, htm, and .dbf, .prj, .sbn, .sbx, .shp, .shx) and would like to quickly add this imagery to my working project in ...
- 1,529
10
votes
5
answers
12k
views
How to workaround large mosaic process which is failing?
I need to mosaic about 550Gb of tif imagery together and the software I have tried keeps failing. The area has been split into zones so that the smallest has approx 200 tiles.
I have used the latest ...
- 8,298
10
votes
3
answers
6k
views
Remove clumps of pixels in R
I would like to remove isolated pixels (or clumps of pixels <9) from my raster image.
library(raster)
# create some raster data
r <- raster(ncols=12, nrows=12)
set.seed(0)
r[] <- round(runif(...
- 3,386
9
votes
2
answers
2k
views
Creating several new fields at once with QGIS field calculator in batch mode in the same layer/file
How is it possible to create several new fields at once in the same layer, using QGIS field calculator in batch mode? There is a similar question, but using Python - I'm interested in a solution ...
- 75k
7
votes
2
answers
4k
views
Programmatically naming outputs from the QGIS Modeler?
I am attempting my first use of the modeler from the Graphical Modeler from the Processing menu in QGIS (2.18.3). I made a simple model for using meanshift segmentation. It just has a raster input and ...
- 355
7
votes
3
answers
3k
views
Batch merging shapefiles from different folders, different subfolders [closed]
I tried some of the scripts I found but none worked so far.
What I am trying to do is batch merging hundreds, maybe thousands of shapefiles from different folders/sub-folders into a single shp or ...
- 71
7
votes
5
answers
3k
views
Georeferencing aerial photos when only centroid is known using ArcGIS for Desktop or ERDAS Imagine?
I have heaps of aerial photos that need to be georeferenced.
I have access to ArcMap and ERDAS.
All I am given is an excel sheet with the centroid coordinates of each image.
Each photo covers ...
- 133
6
votes
1
answer
559
views
Model works for single layer but errors for batch process
I have a pretty simple model in QGIS that I am trying to use as a batch process.
The model takes a line shapefile input, creates a temporary buffer, extracts by location using that created buffer, ...
- 61
6
votes
2
answers
866
views
Using Python, Batch Project output won't drop into feature dataset?
When attempting to batch project in ArcGIS 9.3 or 10 (using either arcpy or arcgisscripting), I cannot get my geoprocessing results to drop into the feature dataset that I specify. The results ...
- 367