All Questions

0
votes
0answers
3 views

Is there any chance that I can find shapefiles of buildings in Qingdao, China?

We are starting a new esearch project in China and I've been looking for a while and the closest thing I can find is buildings of Beijing. But I need Qingdao not Beijing. It seems like I will have to ...
0
votes
0answers
3 views

Using XSLT conversions in GeoNetwork to add XML nodes to metadata record during import

I want to use "Apply XSLT converison" option in GeoNetwork when importing new records to add new XML snippet to my metadata record. I need to add aditional XML content (gmd:identifier) to the ...
0
votes
0answers
11 views

How to download shapefile

This is probably a trivial question but I'm new to the field and would need to ask for your help. I'm trying to download the shapefile (orange line) from https://www.openstreetmap.org/relation/271888#...
0
votes
0answers
6 views

When using QGIS Modeler with geopackages is there any way to Extract one Specific layer when using clip function?

I would like to use QGIS modeler to allow extraction of certain layers of a geopackage. I am trying to clip a geopackage containing multiple layers using modeler and when run it the output gives only ...
0
votes
0answers
5 views

QGIS 3.4, Why doesn't MapBox look the same ion Map canvas as in Layout?

When I export, the basemap looks completely different. And then Exported as .jpeg: Have asked MapBox and they don't know.
0
votes
0answers
12 views

Update Shape file with values from Excel Cell in Qgis

I have an excel table with unique Id values. 1 2 3 4 what I want to achieve is when editing a point shapefile with the same Id field every time a new point is created the Id field is filled by the ...
0
votes
0answers
6 views

WebAppBuilder requiring authentication

I'm trying to install QGIS plugin WebAppBuilder from the Boundless repository, following the instructions available at http://boundlessgeo.github.io/qgis-plugins-documentation/suite/install.html and ...
1
vote
0answers
10 views

AttributeError: module 'processing' has no attribute 'runandload'

I am trying to load a layer after its creation, by using runadload(), but I am getting the error: AttributeError: module 'processing' has no attribute 'runandload'. Here's the partial script: ...
0
votes
0answers
6 views

Add custom icon via mapbox.attr

I try to add my custom icon via mapIcon attr but doesn't work: <script type="text/javascript"> function fc_addressint_initMap(mapBox) { var mapLatLon = eval("(" + mapBox.attr("...
0
votes
0answers
4 views

ArcMap 10.4.1, How to show linked pictures in layout data frame for a map book (using Basic License)

I'm trying to create a map book for a tree inventory in ArcMap 10.4.1. I have a shapefile (no problem changing to a gdb) with 350 points, and the goal is to get a layout consisting of 3 data frames: ...
1
vote
1answer
24 views

Removing North arrow?

I use QGIS and don't know why there is a North indicator (see the figure). Anyone know how did it come and how to remove it?
1
vote
0answers
11 views

{{bbox}} value in Overpass Turbo

I am using Overpass Turbo, quite a nice tool, but I want to extract the bbox values and use them in a osm-python-tools query. Oddly I don't see anyway to get the values of my current bbox, I don't see ...
1
vote
0answers
10 views

ArcGIS Collector with ArcGIS Portal webmap failing on attachments

I have a web map that has been created on ArcGIS Portal. Our Portal is federated. The feature layer (service) and web map have all the required settings based on the documentation of ArcGIS Collector ...
0
votes
0answers
11 views

How to write MNDWI for Sentinel 2 Images in Google Earth Engine?

MNDWI is the normalized difference of Green Band and SWIR Band. In LANDSAT both are of a similar resolution i.e. 30m. In the case of LANDSAT var landsat8 = ee.Image("LANDSAT/LC08/C01/T1_RT_TOA/...
0
votes
0answers
10 views

Impossible to export a 3D city models as KML tiles

I want to display 3D city models, stored in a CityGML file, in a Cesium Virtual Globe. I used the software "3D City Database Importer/Exporter" to store this data in a PostGreSQL/PostGIS database. ...
0
votes
0answers
6 views

Output coordinate system for PCL segmentation

I run cylinder segmentation in Point Cloud Library for my point cloud to extract cylinders using following code http://pointclouds.org/documentation/tutorials/cluster_extraction.php#cluster-extraction....
2
votes
2answers
10 views

MBtiles from OpenMapTiles doesn't work with Geoserver MBtiles extension

I am using MBtiles files from OpenMapTiles (free ones for personal and non commercial project) in Geoserver (I have installed the MBTiles extension) the store creation work perfectly but I got an ...
0
votes
0answers
8 views

MySQL Query for Getting Records within Radius

Coordinates in the table are stored in 3 separate columns x, y and zone and are formatted in UTM. Here is the idea: I get the current position of the user (in lat long but I can convert it to UTM if ...
2
votes
0answers
15 views

Creating polygons from binary image using QGIS

Here I got a binary image of buildings and I need to convert them to building polygons: The expected outcome will be a vector file with building polygons based on the image like this: blue as polygon ...
0
votes
0answers
5 views

Show Map Full extent on Home Button

I am figuring out how to change the default extent to full extent and the default extent text display when move over the button. <!DOCTYPE HTML> <html> <head> <...
1
vote
0answers
13 views

Flow data distribution within features of overlapping layers

I want to improve/adjust/comprehend the formula (see below) that was used in my previous question: Transferring flows (connections + values) between polygons for calculating flow values of mobile data ...
0
votes
0answers
12 views

3D-analyst: Interpolate line problem

Nothing happens when I double click to finish the line. I have on the 3D analyst extension and have chosen the right DEM. What is wrong and how do I fix it?
0
votes
0answers
9 views

Pixel inconsistency in ENVI classification result

I'm new to remote sensing I classified Landsat 8 imagery with two methods of classification (ANN and MTMF) in ENVI, but they produced different number of pixels when I calculate the accuracy using ...
-2
votes
0answers
14 views

ArcGIS Pro Speed? [on hold]

The first 5 days when I Used ARCGIS Pro it was so fast, but today it is so slow. Note:I didn't load it with anything nor load my computer. How to re fast it?
0
votes
0answers
7 views

Converting the vertical datum of elevation data in R

I have elevation data for 699 points around Australia. I want to calculate the difference between these point elevations and the highest elevation within 25 nautical miles - in simple terms I want to ...
1
vote
0answers
12 views

FME Many to One to append attribute and not create new feature

I have a land cadastre table where the property number is repeated whenever there is more than one owner and the unique field is the Land_No. Wherever the prop number is repeated, I want the ...
0
votes
0answers
19 views

ArcGIS Pro: Select by location result varies w.r.t system being used [on hold]

We are getting different results if we run the "Select by location" tool in ArcGIS Pro (same version 2.1.1) for same two layers but in different machines. We didn't assign any tolerance level and the ...
2
votes
0answers
15 views

Rasterize a geometry using gdal.RasterizeLayer()

I am writing a processing script using QGIS 3.4. I need to rasterize a polygon using gdal.RasterizeLayer. The problem is the polygon is a list of QgsGeometry objects and not a layer. n = (2*radiusInt)...
3
votes
0answers
26 views

Can QGIS rember the state of open tables

Is there an option to choose when saving a QGIS project for it to save the state of the table views and their location on screen? I am on 3.6.3-Noosa
2
votes
0answers
21 views

Error in reclassifying with arcpy

I am trying to reclassify DEM using arcpy.sa.Reclassify and it is showing an error. Following are my commands: dem_re=arcpy.sa.Reclassify("dem_extfish.tif","VALUE",arcpy.sa.RemapRange([[391, 677, 1],[...
0
votes
0answers
17 views

How to pass the value of a string instead of string itself [on hold]

I have a function private static String change(String iden) { if (iden.equals("abc")) { return "abc";} else { return "def"; } Then in another ...
0
votes
0answers
12 views

Volume calculation using potree/three.js?

I am using Potree/three.js web viewer for visualisation of 3D cloud points. I would like to compute the volume inside the user defined polygon. Potree supports only drawing a cube in measure tool. ...
0
votes
0answers
17 views

Limit FME regex to just the first match

In FME I have the following in the AttributeManager transformer to replace a value in a column @ReplaceRegEx(@Value(Street_Address),"^([UNITunit]*.?\d+[\/-]?\d*\w).*",\1) This should work as in the ...
0
votes
0answers
13 views

Automating Model Builder (ArcMap) for NetCDF Processing

I have a NetCDF with 30+ years of monthly data from which I want to find the climatological normal. Using the NetCDF tutorial I found through NOAA (https://www.esrl.noaa.gov/psd/data/gridded_help/...
1
vote
0answers
17 views

WGS84 to MSL and opposite

I am using Cesium to create point in a map. The point will be then flyable with a drone. I have the following problem, 1) The user set a point altitude to 20 meters in a 2D flat map. 2) The point ...
1
vote
0answers
9 views

Tools to conduct Kernel Network Density estimation in an ESRI environment

Are there any tools or resources to conduct Network Density Estimation using ArcGIS 10.5 or ArcGIS Pro? I've found this tool http://sanet.csis.u-tokyo.ac.jp/ but it only works on version 9 - 10.2.
-1
votes
0answers
10 views

Table Not Displaying in Display View [on hold]

When attempting to display an Excel file in Layout view, the table will instead be a blank box, no borders or anything. I've tried changing the table to Excel 97-2003 and CSV and it happens ...
3
votes
0answers
41 views

Why an extra iteration on the first feature of a GeoJSON layer?

I'm using Python and GDAL to iterate over the features in a GeoJSON layer and I'm seeing this strange behavior where the first iteration is repeated a second time before moving onto the next feature. ...
1
vote
0answers
26 views

Automatic geometry creation

I am currently slowly mapping field boundaries of old agriculture map areas using QGIS. Has anyone designed a magic plugin or method so that the black outlines of the boundaries are automatically ...
2
votes
0answers
21 views

Vector map (rivers) to Raster. [ **ERROR 1: Wrong value for -outsize parameter.**]

I want to transform this vector map: To something like this I only tried to convert the vector map through Raster> Conversion> Rasterize But I get this Error: QGIS version: 3.6.3-Noosa QGIS code ...
0
votes
0answers
9 views

3D building automatic texture software recommendations? [on hold]

Does anyone have any recommendations for any software (proprietary/opensource/programmable) that can automatically texture 3D building models (collada/shp) from digital aerial camera (large/medium ...
-1
votes
2answers
42 views

Finding the right CRS for Google Map coordinates

I'm trying to find the right CRS for a spreadsheet dataset I'm trying to add to my QGIS project. I collected coordinates for wildfire fuels reduction projects using Google Maps, and am hoping to add ...
1
vote
0answers
11 views

Can't DropTopology due to event trigger

I have a postgres database with one table for each US state. I am trying to make a program which iterates through each of the tables and manipulates the geometry. To do this, at the beginning of the ...
0
votes
0answers
14 views

Point Feature Percentiles: National Rank vs Local Rank in ArcGIS

I have an idea in my head, but need assistance in how to process my data to get the answers I need. Restrictions: Where I work we use Esri products, and third-party packages and add-ins are ...
0
votes
0answers
15 views

QGIS 3.4 bug merging layers

I have some difficulties with the tool Merge vector layers (free translation from French). The result of the process is an empty layer of the line layers. It is strange, because I did it with two ...
2
votes
1answer
25 views

QGIS 3.4.5 tracing tool misses vertices

I'm using QGIS 3.4.5. I'm trying to make a new polygon layer that traces the border of a polygon on another layer. The tracing tool works fine except for the last vertices. I´ll attach an image to ...
2
votes
1answer
18 views

Using ArcGIS ModelBuilder iterator to for Raster Calculator?

I have a raster that I need to divide by X in a model. I have hundreds of values I need to divide it by. What I am trying to do is create a list of values, and use the iterator to loop through them ...
1
vote
1answer
17 views

Export raster of CHM from lidR

I would like to use lidR to produce canopy height rasters. I was following along in the 'rasterizing perfect CHM' user guide and now I'm wondering how to export this raster to a GeoTiff or .img. In ...
0
votes
1answer
31 views

Google Earth Engine - qualityMosaic() opposite

Is there a way to calculate the opposite of what the qualityMosaic() does to an ImageCollection? That is to minimize a selected column (for example an added layer "ndvi") but keep the rest of the ...
1
vote
0answers
12 views

How do I clip the result of my QGIS 3.x Processing python script before returning the output?

I have written a simple QgsProcessingAlgorithm that populates a QgsFeatureSink. Before outputting the result, I need to call another algorithm to clip my features. Everything seems to work just fine, ...

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