All Questions

0
votes
0answers
7 views

How to specify bands to process rasters with Python's GDAL.wrap?

I use Python to write scripts based on gdal library. I want to specify which bands do I need to process with gdal.Warp and I use gdal.WarpOptions() parameter as mentioned in API. But my PyCharm IDE ...
0
votes
0answers
5 views

Losing individual points when saving delimited layer as shapefile QGIS 2.18.21

I have a .csv file with a selection of UK postcode points (eastings and northings reference) which I am trying to save as a .shp. I can import the .csv fine but it defaults to a WRS encoding and I ...
0
votes
0answers
5 views

QGIS - QTableView or QTable widget in custom form

I've made a custom ui form for entering data in a GIS database built with PostgreSQL and QGIS. This is a relational database and I use the Relations properties in QGIS to implement this relations (one-...
0
votes
0answers
9 views

Is there any way to vertical georeference the DSM number 2 based on DSM number 1?

Saying a have two DSM from the same location in Nepal, but they were acquired from different methods and have different elevations. It is not constant, so I cannot use the raster calculator in QGIS to ...
0
votes
0answers
3 views

Sigloc package bad point detected

I'm a beginner in sigloc package r cran. I have more than 100 points with easting northing and azimuth. I am trying to locate emitter. Estimated Location is wrong and the following error message ...
0
votes
1answer
17 views

Is the natural neighbor an exact interpolator in ArcGIS

Is the natural neighbor ( or even nearest neighbor) considered an exact interpolator? I believe splining or kriging could be considered exact... but what about the natural or nearest neighbor?
1
vote
1answer
13 views

OSM Line 'way' from Postgres (PostGIS) to Java Linestring (from JTS library)

I would like to read the data from PostGIS OSM database to Java object. I have 'planet_osm_line' table. I'd like to get 'osm_id' and 'way' column read by ResultSet, as here: stmt = con....
0
votes
0answers
11 views

What is the meaning of ' QC_val=0x…' in the bfastSpatial package?

I am using the bfastSpatial package in R. One of the parameters that I have to set is the QC_val=0x 'a number'. I do not understand what number I have to insert. I am using MOD11A2 product (MODIS LST ...
1
vote
0answers
18 views

QuickMapServices QGIS showing nothing

I have downloaded the QuickMapServices Plugin for QGIS, however when I try to open an OSM layer (or any layer) nothing happens. It appears in the legend, but not in the project workspace (other layers ...
0
votes
0answers
4 views

Non-visibility of .ECD file in ArcMap using Random Trees Classifier

I have been using the Random Trees (RT) algorithm in ArcMap 10.6 for classifying some Landsat raster imagery. I have the training data file which I input into the Train RT Classifier to produce the ....
0
votes
0answers
8 views

Write to QGIS python console from plugin with sys.stdout

From my own QGIS plugin, I want to print text to the python console (see motivation below). Most simply, I use import sys sys.stdout.write('Outputtext') And get: AttributeError: 'NoneType' ...
1
vote
0answers
9 views

Add own plugin repository to qgis3.4

I want to add a repository (bitbucket repo from atlassian) to my qgis3.4. The repository is not public, and I have a p12 certificate to access the repository. In that repository, I only have one qgis ...
1
vote
1answer
17 views

How to obtain percentiles of classes in classified image in Google Earth Engine?

https://code.earthengine.google.com/e430e2a79aecb65e3efbce23779a0abc I have written this code for supervised classification using the cart classifier. Now I want to extract the no. of pixels in each ...
0
votes
0answers
9 views

Snapping two line shapefiles according to attribute field value using ArcGIS Desktop?

I have a two line shapefiles (Trace.shp and Snap.shp). There is a GIS_ID field in both files. Now I want to snap "Snap.shp" to "Trace.shp" according to GIS_ID value. I have tried to use Snap tool for ...
0
votes
0answers
17 views

Seeking GIS algorithm or Software for Swapping land parcels/plots by property? [on hold]

I've searched for a Software or GIS Algorithm for swapping plots in an area by land owners and I didn't find anything. Do you know something similar or a software/gis developer that did that? For ...
0
votes
1answer
16 views

GeoServer error on styling line width relative to zoom level

I've applied MBstyle (gs-mbstyle-2.13.2, gt-mbstyle-19.3) extension for GeoServer (2.13.2) to style layers in mvt format. It works fine for simple styling but the problem occurs when I want to set the ...
0
votes
1answer
22 views

Separating north, south, east and west of each parcel according to their neighborhood using ArcGIS Desktop?

I am searching an easy way, like code, I have about 70000 parcels from the city. How can I separate north, south, east and west of each parcel according to their neighborhood?
0
votes
0answers
4 views

Vector response from TomTom Maps API

I am exploring TomTom Maps API for a project I am working on. Below is the reference link I used : https://developer.tomtom.com/maps-api/maps-api-documentation-vector/tile. I require to get the ...
0
votes
0answers
9 views

Unable to stack downloaded layers in R [on hold]

I have downloaded images of Landsat. Unzipped them and need to stack them to further process the images for lulc... How do I proceed? Also I have a stacked layer in .img format done in Erdas imagine....
0
votes
0answers
11 views

Create a polyline from GPS Tracklog won't work on QGIS3.2 but did on 2.18

I need to convert a track log into a .shp line. In previous versions I could create one but in 3.2 only a point feature is possible not a line.
0
votes
1answer
8 views

MOLUSCE plugin is not available for QGIS 3.4

I have updated QGIS into 3.4 Madeira version. I can't find MOLUSCE plugin in this new version. Is it not available for newer versions?
-5
votes
0answers
18 views

IDW interpolator [on hold]

X=19, Y=66 and P=2. Apply IDW to compute height at X (SAMPLE POINT, X-COORDINATE, Y-COORDINATE, HEIGHT-VALUE) (11 , 41 , 60 , 56.90) (14 , 21 , 40 , ...
1
vote
0answers
19 views

Speckle on LiDAR data

Does LiDAR data suffer from the speckle noise like the SAR images and ultrasound cardiac images I'm used to? I think speckle noise is inherent to all active sensors, but I'm not sure for LiDAR ...
-2
votes
0answers
15 views

When trying to export a corrected file error Unable to transform GNSS coordinates into the chosen coordinate system [on hold]

1 input file(s) read. 413 position(s) read. A total of 18 feature(s) read or created. 18 point feature(s) read. Unable to transform GNSS coordinates into the chosen coordinate system.
1
vote
1answer
22 views

QGIS Training Manual Vector Menu

I just (December 12, 2018) downloaded the training manual and data. I'm trying to get started but I cant find the first part to download the OpenStreetMap part. "In the Vector menu dropdown, select ...
-2
votes
0answers
14 views

NameError: name 'row' is not defined python selenium [on hold]

NameError: name 'row' is not defined
0
votes
1answer
20 views

Creating DEM from mesh? [duplicate]

I have a mesh ( with points and triangles that define it), and I will need to create a DEM model out of it ( in geotiff format if possible for space consideration, if not, then in ASCII grid format). ...
1
vote
0answers
11 views

Writing PyQGIS code to select items in line layer by length?

I have been trying to write a short code to select items in a line layer that are longer than 2000m, but I don't have much luck at the moment now. layer=iface.activeLayer() selected_fid=[] lenth=[] ...
1
vote
0answers
18 views

Ogr2ogr transform shapefile into GeoJSON without the geometry

I'm trying to transform a set of shapefiles (49) that contains nearly 2500 LineStrings each and also different columns of information. So my intention is to obtain only this additional information ...
1
vote
1answer
11 views

QGIS - Timemanager not working with Integer Timestamp format

I'm trying to create an animation using Timemanager on QGIS 2.18 but I'm struggling. I have a dataset composed by a list of businesses and their opening/closing time. This is what the dataset looks ...
1
vote
1answer
20 views

Calculating Population Within Buffer in QGIS

I am new to QGIS and GIS systems in general. I have a shapefile of zip codes with associated populations inside them. I also have random lat/long points. I am trying to find the number of people ...
1
vote
0answers
7 views

Getting Esri Brushes to appear as dynamic resources in Visual Studio?

I used the ArcGIS Pro SDK to create my Add-In project and to create the DockPane but the Esri Brushes don't show up as Dynamic Resources. According to Esri (https://github.com/Esri/arcgis-pro-sdk/...
0
votes
0answers
10 views

Is there any way I could convert the GML cloudmask provided by ESA to raster?

I was trying to get the cloud mask in GMLlL format provided by ESA to a raster cloud mask. I was trying to convert the GML to a shapefile first and then convert the shapefile to a raster. Is there any ...
0
votes
0answers
4 views

Using FeatureCollection in Configurable Map Viewer?

I have searched everywhere online on How to use featureCollection in the operationalLayers of CMV. Is any sample code available?
-1
votes
1answer
18 views

How can I use rts function for time series TIFF using R

I am trying to plot a time series for my TIFF stack MODIS EVI with the rts function. I am trying to use this script but I do not know if I can use it for my TIFF stack. path <- system.file("D:/...
0
votes
1answer
19 views

Transforming .osm file into a .svg file with an equivalent geometry, without applying styling

I have an existing .osm file (containing a small part of OpenStreetMap database). I am looking for way to convert it into .svg file. Note that I am not interested in applying any styling based on ...
1
vote
0answers
17 views

Compile and load QGIS3 plugin

Win7 x64, QGIS 3.4 installed through OSGeo4W with 'Advanced Install' Here's my workflow: Get the template directory from PluginBuilder3 Navigate to this folder in the OSGeo4W Shell Use call "...
0
votes
0answers
12 views

Linear Regression Google Earth Engine on seasonal dataset

How can I correctly display my slope in Google Earth Engine, at the Map.addLayer function? I don’t quite understand how to set up the min and max values on scale or offset. I want to show increasing, ...
0
votes
1answer
17 views

Add “Percent Complete” chart based on two feature classes to Operations Dashboard

I am trying to create an Operations Dashboard in ArcGIS Online and want to track progress towards a goal. The goal is a sum of features (count of potential_customers, subtyped as residential). ...
0
votes
0answers
14 views

Overlapping Areas within Shapefile (between Polygons) & between Shapefiles (also polygons) using QGIS?

I am using QGIS 3. I have multiple shapefiles, each contains multiple polygons. I would like find out area of overlap between polygons within the same shapefile, and also those between polygons in ...
6
votes
3answers
123 views

Is it necessary to delete a cursor used in a comprehension?

If it is best to open cursors using a with statement to ensure it is deleted, like so: with arcpy.da.UpdateCursor(fc,fields) as cursor: Then, if a cursor is used as the iterable in a comprehension ...
0
votes
0answers
4 views

CMV- How To Load Data From Custom API Into Feature Layer in CMV

I am trying to fetch data from API hosted on a private server into operational Layer in CMV. I tried loading an array of Json data into a source property of the operational layer but it does not work. ...
0
votes
0answers
18 views

skimulator - Python error message on Windows 10 - load_entry_point

I am running python code called skimulator on Windows 10 to model Arctic ice drift and sea/wave velocities for a satellite mission in 2025. Its installed using Anaconda navigator with a python 3, ...
0
votes
0answers
16 views

How to color-code a road by some attribute (roughness, surface material, pothole density) [on hold]

I have a two stage application and would like some guidance. First, I want to create a shapefile of a "ribbon" that is color-coded by some attribute (such as roughness, surface material, pothole ...
1
vote
0answers
27 views

Split roadline into multiple segments

Black points represent CSD coordinates for Canada and yellow points represents border coordinates (US/Canada). I combined these with North America major roads network. I am trying to find shortest ...
0
votes
0answers
12 views

Zonal Geometry, raster calculator [on hold]

I have created region group raster and used this as the input to the zonal geometry too. The output raster I used as the input to raster calculator. I need to only show regions that are greater than ...
0
votes
1answer
17 views

Using Split By Attributes in ArcGIS ModelBuilder?

I wish to use "split by attribute" tool in ArcGIS ModelBuilder to split a shapefile (points with metadata) into different groups based on a parameter. The tool works and creates for example 4 .dpf ...
3
votes
2answers
75 views

Simplify polygon QGIS [duplicate]

I have a layer of polygons that are pretty detailed. I need these to be more simple. Is there a way to make this into a polygon with just the outer boundries?
0
votes
1answer
39 views

Connect QGIS to Esri geodatabase hosted on RDBMS (PostgreSQL)

I have an ArcGIS 10.5.1 enterprise geodatabase hosted on PostgreSQL 9.4 (non-PostGIS enabled, but with SDE.ST_Geometry support). I'd like to add some feature classes as layers in QGIS. How can I do ...
-2
votes
0answers
30 views

How to Align two different DSMs

I've tried to align 2 DSMs without success. They should have the same elevation (I got 1 DSM BEFORE a landslide and other AFTER) excluding areas where soil was moved, the DSMs do not match. They have ...

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