All Questions
785 questions
6
votes
2
answers
590
views
Batch geocode with multiple services?
I've got a batch of addresses to geocode (on the order of 10,000), I've looked at various services for doing the geocoding, and each service seems to be able to locate a portion between 50% and 90% of ...
- 163
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
6
votes
1
answer
136
views
QGIS 3.16.13 Batch Processing - Is there a way to turn off dialog prompts?
After recently updating from an outdated version of QGIS to the latest Long Term Release, 3.16.13, the behavior of Batch Processing for the Refactor Fields vector tool has changed. Each time a layer ...
6
votes
2
answers
529
views
How to remove vehicles from an aerial photograph
I have an aerial photograph of an area. The image includes visible traffic signs and vehicles. How can I remove the vehicles from the image? Is it possible to do so in software like Erdas or Envi ...
- 767
6
votes
1
answer
175
views
Batch create multiple buffers with variable size around point
For a statistical analysis, I need to calculate some landscape properties in several (rectangular) sample areas, which vary in size (extent ranging from 10 by 10 to 500 by 500). These sample areas are ...
- 61
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
1
answer
2k
views
How to convert an Erdas training set to .csv?
I am working with Erdas Imagine's Signature Editor to perform maximum likelihood classification. I need to use the same training set created in Erdas for other classification using R. Is there a way ...
- 51.8k
6
votes
2
answers
612
views
PyQGIS standalone script using QGIS 3.2
I want to work with PyQGIS Python 3 using QGIS 3.2 standalone install. I created a simple batch file to work with PyQGIS but I have some errors.
Here's the batch file:
@echo off
SET OSGEO4W_ROOT=C:\...
- 1,061
6
votes
1
answer
2k
views
Methods of cloud shadow detection for Landsat data?
Detecting clouds doesn't seem to be much of a problem, rather the challenge is in selecting cloud-shadow classes that don't also include coastal areas, agriculture, etc. For a project I'm working on, ...
- 151
5
votes
2
answers
591
views
Batch renaming of columns in attribute table for shapefiles using QGIS
I have 11 shapefiles that shows administrative areas for 11 different countries. For each country, I have 448 columns in the attribute table that records average rainfall data. They look like this:
I ...
- 51
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
5
votes
2
answers
2k
views
Joining multiple layers in QGIS
I have about 25 GeoPackage files, each containing a table with an "ID" field and another with density information about that area. I want to join all those density information into one layer,...
- 53
5
votes
2
answers
3k
views
Batch save multiple rasters in QGIS
So I am trying to batch save 100's of styled rasters. I have managed to save a single raster in the python console using the following code:
layer = iface.activeLayer()
extent = layer.extent()
width,...
- 1,044
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
5
votes
1
answer
2k
views
Handling file names with spaces in ogr2ogr?
I'm trying to convert .shp files to .kml files. I used a batch file to find all .shp files in a directory and its sub-directories and convert them to .kml. Some converted and some gave me the error "...
- 87
5
votes
3
answers
8k
views
Batch clipping rasters in QGIS?
I have been able to batch clip rasters in one directory using python in ArcGIS.
However, I am not sure how to do the same in QGIS using the Python console.
Is this possible?
- 51
5
votes
1
answer
494
views
Deleting the same column(s) from different shapefiles in QGIS
In QGIS, I have a problem deleting the same column out of different shapefiles, is there a way to do this?
I want to delete several columns out of all these layers, is there a way to do this without ...
- 165
5
votes
3
answers
1k
views
Will Toshiba Satellite 70-A-11h meet GIS student notebook requirements?
I'm just about to start a college to study GIS and I need new notebook computer.
I would like a one that will last me for awhile and that can run the ArcGIS and ERDAS Imagine programmes that are ...
- 59
5
votes
2
answers
429
views
Convert/migrate QGIS 2 Project to QGIS 3 Project automatically
I have over 400 QGIS 2 projects.
I would like to automatically transfer these to QGIS3 projects.
Is there a tool for that?
Or suggestions for batch processing or Python?
Now I use Version 3.16, the ...
- 51
5
votes
1
answer
132
views
Copying all visible layers to new group
I would like to copy all visible layers in a project to a new group. Does anyone know of a quick way of doing this?
Background:
We have a Project that acts as a library for all the spatial data we ...
- 51
5
votes
1
answer
2k
views
Batch Clipping Single Raster with Multiple Shapefiles in ArcPy?
I have a single raster file and about 40 small polygons shapes. I would like to clip the raster by the extent of all these shapes, and create 40 resulting .img files.
I know I can just do this by ...
- 263
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
5
votes
2
answers
3k
views
Erdas python scripting help
I want to write scripts for Erdas in Python.
I downloaded some Python examples here but I could not make much.
Where can I get the full Help material for Erdas python scripting?
- 1,419
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
357
views
QGIS Batch Process to save bands of a raster layer as separate raster files
I have a .tif file with 61 bands. Normally, to save a band, I use the rastar calculator expression filename@1. But since there are 61 bands, with each band corresponding to a date, from April 1 to May ...
- 105
5
votes
2
answers
910
views
Hiding raster bands/palette in Layers panel in QGIS
I often have to load a lot of rasters at once into QGIS. Unfortunately, most of them appear with a "Legend" wich shows their bands (or palette for single band rasters). This takes a lot of ...
- 3,080
5
votes
1
answer
729
views
Converting HDF to TIFF using batch processing with gdal_translate
I have a huge MODIS dataset and I need to translate them to tiff from hdf.
My input path is: C:\Users\HP\Desktop\deneme\ham_veri
and hopefully, the output path is: C:\Users\HP\Desktop\deneme\yeni
This ...
5
votes
4
answers
11k
views
Determining which "color" each image band represents?
I have a satellite image that has a few bands in it. But I don't know what colors they are supposed to represent, nor do I know where to look for this information--the file's metadata say nothing ...
- 83
5
votes
1
answer
6k
views
How to batch export layers to KML in ArcMap?
Is there a way to batch export layers to KML from ArcMap (ArcGIS Desktop) by altering the layer to KML tool to have more than one layer input?
- 429
5
votes
5
answers
5k
views
Extending batch of lines to another object using ArcGIS Desktop?
Is there any simple tool which allows to extend all lines in .shp to another .shp?
To clarify, I do have river.shp and sections.shp on the river. I'd like to produce buffer from river, extend lines ...
- 2,923
5
votes
1
answer
886
views
R - Batch Merge Line Shapefiles
I am trying to merge all road data from the OS Open Map Local file, to create a single line shapefile of all the roads in the UK. I will then use this data to create huff catchments. I would like to ...
- 53
5
votes
1
answer
675
views
Compressing raster using PyQGIS?
I have the following code which batch saves rasters in qgis using the python terminal:
myDir = 'd:/output/'
layers = iface.legendInterface().layers()
pipe = QgsRasterPipe()
for layer in layers:
...
- 1,044
5
votes
2
answers
457
views
Knowing the pixel size for a raster before it was resampled
Is there a method to know the exact pixel size (the original size) of a raster “aerial photo”?
I have purchased an Arial photo with 10 cm pixel size resolution, and I received a sample of it, but ...
- 1,044
5
votes
3
answers
3k
views
How to batch-process georeferencing of rasters (prelude to animation)?
I have many (10k) raster files, all with identical size and pixel dimensions, which need to be georeferenced. I would like to georeference one of them manually, using either QGIS or GRASS, and then ...
- 1,671
5
votes
1
answer
8k
views
.gdbtable file type, how GIS reads it, and how to batch-convert it to a CSV?
TL;DR: How do I convert .gdbtable to .csv in Python? Where is the location data in the attribute table?
Using QGIS 3.14. I have a data type which I'm unfamiliar with, a GDB table it appears. The exact ...
- 105
5
votes
1
answer
2k
views
Using Delete columns (Batch processing) in QGIS?
I am having problem using the Delete column (Batch processing) under Vector Table tools. I do not understand what the Field to delete column means. I have tried using any of my layer's attribute ...
- 952
5
votes
1
answer
3k
views
Batch csv import, styling and image export from QGIS
I have a folder of several hundred csv files with point data. I need to import each into QGIS as a layer, apply the same style to each, and then render a map (same extents) for each (these will be ...
- 153
5
votes
1
answer
844
views
Stereo Analyst & ArcGIS 10.1 - volume calculation
I use to perform analysis and imagery exploitation with the software above.
I have created a Stereo Analyst report with some 3d polygon by a stereoscopic block.
How do I calculate the volume of some ...
- 93
5
votes
1
answer
1k
views
Setting "REAL" work/scratch workspace in ESRI/ERDAS etc
I thought the issue was only in ARCGIS but it seems that ERDAS does the same thing. I have my C with 1.7TB and my D with 10TB and my scratch set to d:\scratch but still ERDAS (and ESRI) fills my ...
- 8,298
5
votes
2
answers
834
views
batch create DEM from contour maps (open source)
I have around 100 shapefiles of contours (1m interval) that I need to turn into DEMs; Is there a way to batch create these mde from contour lines? Using open source preferably.
- 564
5
votes
1
answer
2k
views
GDALWarp and Target Aligned Pixels Not Effective
I have two sets of TIFFs of different resolutions (100m and 1000m), different alignment, and varying data types with corresponding no data values. I need to downsample the 100m TIFFs to match the ...
- 51
5
votes
1
answer
652
views
Using original Landsat multispectral image or pan-sharpened image in land cover classification?
I am currently creating land cover maps of a number of national parks across Asia from Landsat 8 imagery and also later from SPOT imagery. I plan to use supervised classifications in ERDAS IMAGINE and ...
- 861
5
votes
1
answer
251
views
Options for manually identifying road defects from Terrestrial Lidar
I am trying to create a process to identify road defects manually from Lidar. We have Erdas 2013, ArcGIS10.1 and Global Mappper 14.2 as options for paid software.
So far Merrick Mars displays the ...
- 8,298
5
votes
0
answers
158
views
Batch embed SVG markers to geopackage
I have recently converted my QGIS project with more than 70 layers to a GeoPackage in order to be able to hand the project over to other persons and computers. The project includes over 100 SVG ...
- 745
5
votes
1
answer
1k
views
Batch export of layers as individual PNG files in QGIS 3.4?
I have hundreds of layers. I'd like to be able export each one as a PNG. I can do this by selecting one, and going to project, export map to image, calculate from layer -> select layer -> save. ...
- 103
5
votes
0
answers
578
views
QGIS Import multiple text files at once [duplicate]
I have been needing to import anywhere between a few to 10's of text layers into a project per day for my job.
The text files are in a .log format (Space Delimited)
The X, Y, and CRS designations ...
- 159
4
votes
2
answers
3k
views
Interactive "for each item in ... do ..." in QGIS?
How does one interactively run a basic looping batch construct in QGIS?
for each {feature} in {features}:
do {thing} with/to {feature}
save/export/display {result}
Where:
{features} could ...
- 28.3k
4
votes
2
answers
2k
views
Exporting multiple point shapefiles from one file using QGIS
I have a point shapfile of species records (about 100 species), with many georefenced ecords for each species.
I'd like to export one point shapfile for each species.
I can do it by selecting by ...
- 41
4
votes
3
answers
8k
views
How to create animation from raster data?
I have some NDVI and precipitation/temperature images at the monthly time step from Jan, 2005 to Dec, 2008.
I need to create animation image to show the temporal change.
How can I do this?
Is it ...
- 579
4
votes
2
answers
4k
views
Calculating Net Primary Production (NPP)?
When I calculate Net primary production (NPP) for a local scale, what kind of software should I use?
I always use ENVI, ERDAS IMAGINE, ArcGIS for Desktop and IDRISI.
Is it possible to use these ...
- 579