All Questions
785 questions
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
2
votes
1
answer
553
views
QGIS 3 batch processing - INPUT value not correct when autofill
I want to batch process with Clip function (also problem with any other). I have several input layers. I would like to autofill the output Clipped parameter with name of the input feature and _clipped ...
- 187
2
votes
3
answers
374
views
Batch rename MODIS data?
I have MOD13Q1 NDVI images. Data are named in this format:
MOD13Q1.A2007049.h26v06.006.2015161224938_MODIS_Grid_16DAY_250m_500m_VI.tif
(YYYYDDD) Here 2007 is a year and 049 is day in year.
I ...
- 111
2
votes
2
answers
3k
views
Batch load rasters to mosaic dataset
I have around 200 Geo-referenced JP2 files that I want to add to ArcMap. Out of these I want to create a single Mosaic raster.
However, I'm having issues adding the data.
Everything is fine for the ...
- 173
2
votes
1
answer
14k
views
How to import HDF (L1G) files into ArcGIS for Desktop?
I have downloaded satellite imagery from GLCF website, it has downloaded with .L1G file extension, I am not able to open this file in ArcGIS as well in Erdas, so please let me know how to open this.
- 755
2
votes
2
answers
3k
views
How to batch convert Shapefiles to GMLs?
I know how to do this within Quantum GIS but I have 30+ shapefiles that need to be converted to GML. Is there a Python script sample or plugin for Quantum GIS that I can use to convert my shapefiles ...
- 268
2
votes
1
answer
400
views
For loop for access to a directory files in ArcPy
I have a Python Toolbox and I want to use a directory to read different shapefiles. But when I run the script It only works for the first shape.
fd is the directory and the code is:
fd= parameters[0]....
- 343
2
votes
1
answer
1k
views
Creating geopackage layers as output with QGIS batch processing autofill option
Is it possible to use the Calculate by Expression tool to output geopackage layers. For example, with the batch option for the polygon to line function. With the following expressions I can create ...
- 1,746
2
votes
2
answers
683
views
Batch conversion of polygonz into polygon in QGIS?
I have a bunch of kmz files which I need to merge into one so I can convert it into one polygon shapefile using QGIS.
The problem is that I have some kmz that are polygon, and some that are polygonz ...
- 87
2
votes
1
answer
1k
views
How to find routes between for each entry in a list of point pairs?
I have a postgis database with two tables. In the first table I have linestrings of a street network.
The second table has points that are located on the street network.
What I want is to find the ...
- 2,694
2
votes
2
answers
2k
views
Shifting cloud mask in Erdas/ArcMap/Py Script [closed]
I have the task to mask out cloud cover in approximately 20 landsat 8 scenes. Creating the cloud mask for the "white part" is easy, but I need help in addressing the clouds shadow.
General ...
- 209
2
votes
2
answers
5k
views
Floating point to 8-bit unsigned raster conversion using ArcGIS for Desktop or ERDAS IMAGINE?
I have an image with value ranging from -1 to +1.
I want to convert this into 0-255 (8bit).
How can this be done using ArcGIS for Desktop or ERDAS IMAGINE?
- 61
2
votes
1
answer
438
views
Directing output to a mirrored file tree. ArcGIS, Python
I am attempting to modify the Batch Project script to:
a) read from a text file of file names located on our server
b) build a mirror of the paths to those files on my local machine
c) output to my ...
- 129
2
votes
1
answer
109
views
Does QGIS have a functionality similar to Flicker in Erdas Imagine?
I am trying to replace an Erdas Imagine workflow with QGIS and I have got most of it working but can't find a solution for fliker. We have it set to turn an image on and off every few seconds to ...
- 8,298
2
votes
1
answer
701
views
Load data from GPKG incrementally in R
I need to process a GPKG file in R, but it's too large (50GB) to load the entire thing into memory at once. Is there any way to incrementally load the results? Right now we are loading it with a ...
- 123
2
votes
1
answer
810
views
QGIS modeler: using input rasters filename for naming columns by expression
I am running QGIS 3.12.3 București on Windows 10 x64; I am building a simple model to reclassify a series of rasters with a 2x3 table, and then count each unique reclassified value within different ...
2
votes
1
answer
2k
views
How to create contour lines from TIFF (raster with more than 100 bands)
I need to do batch processing from a raster with 120 bands (GeoTIFF). I need 120 contour line shapefiles, but I get only one. I had no problem when the result is another raster file with all the bands,...
- 21
2
votes
2
answers
3k
views
Using LAStools to repair headers for several LiDAR files?
So, I have 21 LiDAR files with incorrect information in their file headers. For example, when I import a single file into R using the following code, I get several warnings saying that there are no ...
2
votes
2
answers
618
views
Batch remove attributes
I'm having a little trouble using the merge command in QGIS. All the files have a range of different attributes, with some attribute headers in common. Some of these have different data format types ...
- 445
2
votes
1
answer
562
views
batch remove multi geometry in QGIS
I am looking to find a way to simplify multi geometry KML files into single geometry files. However, rather than include the extra shape into my single geometry, I would like to remove it.
At the ...
- 21
2
votes
2
answers
4k
views
OSgeo4W64 Windows 7 & ImportError: No Module Named Site
I realize this question has been asked a lot, but I was not able to resolve my issue through the answers posted elsewhere... I am new to Python, gdal, OSgeo4W, etc. but have experience with ArcGIS.
I'...
- 117
2
votes
2
answers
698
views
How to batch create GeoServer users?
Is it possible to create GeoServer users for a list of usernames (and associated passwords) in one batch? (similar to using the Linux newusers command to create multiple users)
I've asked a related ...
- 11.2k
2
votes
1
answer
105
views
Automatically batch flipping and saving raster dataset under different name using ModelBuilder?
I have 168 datasets, and I clearly cannot flip each one. I've tried batch processing but it is still time-consuming because I have to manually assign dataset and I/O path. I need something to do this ...
- 65
2
votes
1
answer
801
views
Batch JSON to Features help
I have a folder on my local drive with 1,500+ JSON files (lines) that I need converted to shapefiles. (JSON to feature tool in ArcGIS works great on a single JSON file)
I've tried getting a batch ...
- 31
2
votes
3
answers
470
views
Is there a script to batch erase the equivalent of a shp to multiple other shps? (in ArcGIS)
I'm looking for a way to be able to frequently update a bunch of shapefiles (different land use and other areas). I would like to erase from them the lakes and rivers which are in another shape (hydro....
- 323
2
votes
1
answer
1k
views
Existence of fiducials marks in a digital camera file
Existence of fiducials marks in a digital camera file
I have created a generic digital camera file using Erdas 2015 with the following data in it:
LPS Camera File Version: 2.0
Camera Name: "generic ...
- 1,044
2
votes
1
answer
1k
views
Is possible to merge landsat 8 with High Resolution Satellite Imagery?
i have landsat8 and High Resolution Imagery (1m) in the same study area, is possible to merge them to get one imagery so that i can take advantage of the accuracy satellite imagery.
some_text http://...
- 1,123
2
votes
3
answers
1k
views
OSGeo4W GDAL Polygonize Batch Convert?
I'm trying to use GDAL polygonize to run a batch convert but I cannot for the life of my figure out a way to get it to read a text file as input that contains all of the commands.
Do you know the ...
- 39
2
votes
1
answer
2k
views
Using Erdas for land cover land use change detection
New to Erdas but I have to do a project and I have chosen to do a landcover land change detection. I have two Landsat 5 images, five years apart from each other.
What is my next step?
I imagine I ...
- 21
2
votes
2
answers
1k
views
Deriving slope angle value from DEM using ERDAS Imagine
I am trying to calculate the steepness of each pixels (30m) from the DEM of 2m resolution. I have made use of ERDAS Imagine - Slope function and returns a contour-like pixel image. The pixel value ...
- 37
2
votes
1
answer
1k
views
Optimizing PDF using Python? [closed]
Is there a way to optimize a PDF using Python?
I am exporting hundreds of .mxds - that works fine with a loop. But the file size of each is large. Right now my option is to manually open each ...
- 21
2
votes
1
answer
235
views
Using ogrinfo to list all projection source of a database [closed]
I have to reproject all the layers from a database, but some of them are undefined and some are defined in a wrong projection. I would like to sort all those layers in a text file with their source ...
- 279
2
votes
2
answers
4k
views
how to remove underscore from filename in directory using modelbuilder
Does anyone have a script I can use in modelbuilder that will?:
parse an "_" from a filename
usable in modelbuilder with an inline variable (%name%) and Feature class iterator
transfer or copy the ...
- 193
2
votes
4
answers
315
views
Batch visualization of raster (grid) files
I have about 100 raster (grid) files (in the "ascii grid" format) of drought index. All cover the same area of interest but at different times of year. I need to create images from the grids with ...
- 1,330
2
votes
1
answer
1k
views
Batch intersect from a text file using Python (ArcGIS)
I am attempting to modify my code below which reads from a text file of shapefiles and executes an intersect and outputs them to a user specified location:
import arcpy, sys, os
from arcpy import env
...
- 129
2
votes
1
answer
116
views
Choose which outputs to open after batch processing in QGIS graphical modeller
I created a graphical model with many outputs. I need to test-run it many times to check the effect of some parameter choices on a single output. All other outputs would unnecessarily clutter my ...
2
votes
2
answers
738
views
ogr2ogr shapefile to PostgreSQL table | cannot change geom field
ogr2ogr -lco GEOMETRY_NAME=geom -f "PostgreSQL" "PG:host=localhost user=postgres dbname=lidar password=postgres" "C:/Users/Rose/Documents/faulty_rasters_test/raster_summary/...
- 315
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
2
votes
1
answer
897
views
Batch process for merging features in multiple layers
I have multiple (50) layers representing rivers and creeks which are polylines. However, they are broken into line segments so each river/creek layer might have 30 or so features within it.
I know ...
- 395
2
votes
1
answer
585
views
Batch reading features from many Geodatabases in R
I would like to learn to batch import from many geodatabases at once and merge the files together into a new unified shapefile. All of the GDBs and Features have a similar name and file structure. For ...
2
votes
1
answer
243
views
Smooth mosaicking of smaller orthomosaics to form a homogenous mosaic
This image below is generated using Erdas Imagine where I used mosaicpro tool to create a super mosaic of orthomosaics generated using PIX4d
I used following options:
Color Balancing
Color Dodging
...
- 633
2
votes
1
answer
2k
views
Classified image color in Erdas Imagine
I've a ArcMap classified image in tiff format. I want to open it in Erdas for further Accuracy assessment.
How to open the image in Erdas with same color ramp as it is given after classification?
2
votes
1
answer
2k
views
Calculating NDWI in Erdas IMAGINE 2014
I'm using MOD09GQ product of MODIS to calculate vegetation indices in Erdas 2014, and I was able to extract NDVI using Erdas Model Builder.
What is the formula I should use in model builder for ...
- 31
2
votes
1
answer
2k
views
What exactly does hill shade or Shaded relief , if performed on SRTM DEM will output?
Two questions actually.
Does shaded relief or hill shade outputs mean "expelling of shadows"?
For a vast country like India, how to prepare a map from SRTM DEM, which does not have any shadow effects?...
- 21
2
votes
1
answer
2k
views
How to remove band from stack in ERDAS 2013?
I have a Landsat 8 scene where I have stacked 11 bands. I need to remove one band from the stacked layer. Is there a toolbox in ERDAS 2013 that allows me to take out a band?
I am aware that ENVI 5....
- 4,139
2
votes
2
answers
610
views
Batch export QGIS for various locations
I have the data for several cities in a layer. I'd like to run a batch export, that goes through a list and zooms in on one city (coordinate + zoomlevel), then the next, etc and exports each results ...
2
votes
2
answers
7k
views
arcpy.mapping.ListLayers() without calling current mxd document
How can I use the arcpy.mapping.ListLayers() function without calling the current mxd? I'm hoping to run the Python script without having an ArcMap document open.
My setsymbology code runs extremely ...
- 329
2
votes
2
answers
746
views
Using python to batch process lasclip - LAStools/QGIS
I am trying to use the python console to batch quite a few processes from lastools. I'm having trouble with the arguments to lasclip.
clipped_las = processing.runalg('lidartools:lasclip', True, ...
- 1,383
2
votes
2
answers
3k
views
QGIS's raster calculator-- running as a batch process?
I have a series of raster files (150 or so) that I need to multiply by a baseline raster. Unfortunately, the series of rasters have a different cell size (30m×30m i.e. .00027777778 degrees &...
- 133
2
votes
2
answers
5k
views
Batch raster projection conversion
I want to do a conversion from WCG to UTM for my 172 Raster. I can't use normal batch because I can't re-arrange again the order of raster in the Table of Content.
Because the result is a random name ...
- 428