Questions tagged [python-2.7]
Version 2.7 of the Python programming language
661
questions
0
votes
0answers
31 views
Displaying projection with IMSHOW()
I am having an issue displaying satellite data on the correctly projection using cartopy and imshow. I am unsure of the initial data projection, but I am trying to put it into Plate Carree with a ...
1
vote
1answer
21 views
How to disconnect a feature from Geometric Network using Python ArcGIS
I am creating a Python add-in for ArcMap, which on click, will disconnect the feature from Geometric Network and then delete it from the feature class. But ArcPy doesn't have any method to disconnect ...
0
votes
0answers
16 views
To create a custom user login for DB manager tool in QGIS using Python console of QGIS
I am able to access the db manager window using Python - QGIS for giving db parameters, but I want to open a dialog box when user clicks on the db manager tool (the user should be able to give ...
0
votes
0answers
67 views
Import error with Mapnik in Anaconda 2
I'm using Anaconda to write geographic programs, so I need to use packages like Mapnik.
After installing Mapnik in Anaconda2, it started to error. First about Mapnik itself and after do some actions ...
0
votes
1answer
19 views
Remove layer assertion error
I am using below code to remove any layer if it has zero features in it.
mxd = arcpy.mapping.MapDocument("CURRENT")
aDF = mxd.activeDataFrame
namE = ["No_Work_Done"]
if int(arcpy.GetCount_management(...
1
vote
2answers
35 views
ArcPy Tool Validator error with defined parameter value
I am using ArcMap 10.3.1.
I have two parameters for my script tool. The first is the type of product to be created, the second is the scale of the product. Digital Map / No scale required are the ...
1
vote
0answers
26 views
Getting (0,0) instead of the intersecting co-ordinates value
This code works below fine when line(The Circle I mean) intersects more than two new lines but fails when both the intersection falls in the middle of the same line
polygon_path = iface.activeLayer()
...
1
vote
0answers
41 views
Renaming pre-existing table Field name using PyQGIS
I am using PyQGIS with QGIS 2.84.
This is the code I have used:
layer = iface.activeLayer()
parking_layer_field_names = [str(i.name()) for i in point_layer3.pendingFields()]
layer.startEditing()
...
0
votes
1answer
39 views
Run code on pressing a key in Pythonaddins
I tried making an addin having below code where I want the user to press a predefined key and the "required_code" should run on the selected features.
import arcpy
import pythonaddins
class Key1(...
3
votes
1answer
340 views
Unable to install plugins in QGIS 3.10 for Mac. No python support detected
I'm aware this question has already been asked numerous times in various forms, but I'm not finding any solutions that work for me. "No python support detected" in QGIS.
Issue:
Tried:
1. Updating ...
1
vote
1answer
39 views
Why will arcpy.Project_management not create output?
I have 2 feature datasets in a .gdb (CNMS_Inventory and CNMS_Inventory_Albers). I set the dataset for CNMS_Inventory to 4269(NAD83) when I created it and it contains a feature class called ...
0
votes
1answer
36 views
Applying field mapping during Merge using ArcPy
I am trying to merge 10 stream feature classes together using arcpy. But I need to limit the number of fields in the output (all feature classes share the same fields).
working_dir = r"C:\Projects\...
1
vote
1answer
43 views
How to specify fields to use in a merge
I am using arcpy to merge multiple feature classes from a list of feature classes. They all have the same fields. Let's say they all have the fields = ['CO_FIPS', 'MILES', 'FLOOD_ZONE', 'VALID', '...
1
vote
1answer
64 views
Calling a Class from Another Within a Python Toolbox
Using the example below, both ToolOne and ToolTwo have two parameters each, and are independent functions in their own right, but also form the basis for a chain of functions for an output. I am ...
0
votes
1answer
21 views
ArcPy to select by location not showing selected features in attribute table
I have a button where it first calculate no of features in a specific layer and then runs the "are_identical_to" and update "D". After that it checks if the no of counts in two layers is same? If not, ...
0
votes
1answer
26 views
Combobox value increment and update
I have made a custom add-in for my building ID update tool. The objective is:
user will write an alphanumeric value in the combobox like 'x100'. When a user selects a bunch of polygons(building) and ...
1
vote
0answers
22 views
My UpdateCursor is not working. The attribute table of my new shapefile is not updating [closed]
I am new to arcpy. I am trying to do a few things with a shapefile. First I created a new shapefile with specific dataset that I wanted to work on. So far everything works until the UpdateCursor. When ...
4
votes
1answer
72 views
Not able to update the “ACTION” field
Currently I am working on a GIS project where I have to update a field in a layer with some values to get my work done. Because the manual efforts are time consuming hence I added a custom addin to my ...
0
votes
3answers
52 views
How to access/manipulate a feature class/dataset in a personal database by using cursor via ArcPy?
I wrote an ArcPy script which uses cursors and it works fine with shapefiles. However, it does not work if I execute the same thing in a personal geodatabase. Should I use different format for a ...
0
votes
1answer
46 views
Finding intersection point between two arcs? [closed]
I am trying to find the intersection between two arcs. I have done this for line segments using shapely package. Does anyone have any advice?
1
vote
1answer
38 views
Turn string data (of GPS coordinates) into a GPS tracker = frozen map. QGIS2.14/Py2.7/Win7/LAN
I am currently involved in a student project which is to turn string GPS coordinates into a GPS tracker. This is my current work: First, the UDP data is shared through a LAN (No internet available) ...
0
votes
0answers
59 views
Using UpdateCursor in the same loop as SearchCursor
I have 2 layers, one with land plots and one with hazard zones.
I want to iterate through the layer with land plots and for every plot I want to add 2 (or 3, depending on some variables) fields. Then ...
1
vote
1answer
35 views
Updating gdb with JSON?
parcelsFC = os.path.join('temp.gdb',JsonDirectoryLocation)
arcpy.JSONToFeatures_conversion(parcelsFC)
Created gdb with above code.
How can I add attributes to gdb with another JSON file?
0
votes
1answer
99 views
Getting India map on QGIS canvas using PyQGIS?
Can I get India map extent in one click from OSM tile on canvas using PyQgis?
This is my code snippet.
canvas = iface.mapCanvas()
urlWithParams = 'type=xyz&url=https://a.tile.openstreetmap.org/{...
4
votes
2answers
7k views
Error installing Shapely package using pip command
I'm using Windows 10 and python 2.7. Even though I updated pip it's getting error:
ERROR: Command errored out with exit status 1:
command: 'c:\python27\python.exe' -c 'import sys, setuptools, ...
1
vote
0answers
19 views
Earth Engine API (Python) Retrieves script found at a given path as a module not working
Earth Engine API says that require(path) returns an object that represents exported members from the required module.
When I try to import ee-palettes with:
palettes = require("users/gena/packages:...
2
votes
0answers
66 views
How to capture the event whenever the items inside a listview are checked
I'm developing a plugin in QGIS 2.8.2 using Pyqt 4.
Well the idea is using the processing 'qgis:extractbylocation' from the QGIS algorithm provider to capture the studied area
# Récupérer tous les ...
1
vote
1answer
32 views
Iterating through 2 different Geodatabases at same time using ArcPy?
I have 2 gdb's; one that contains a polygon feature class of census blocks(cb), and one that contains centroids that may lie within those census blocks. They are organized by state. Ex: FL_cb = ...
0
votes
0answers
14 views
Arcpy exporting feature by attribute in ArcMap 10.3 [duplicate]
I'd like to automate exporting each polygon feature by attribute(year) in a shapefile to seperate shapefiles named by year
Now I know this exists in arcpy with 10.5 or higher using the ...
0
votes
0answers
84 views
Set default version of Python in ArcGIS to 64-bit?
This is the output from Python terminal within ArcMap 10.6.1 for Windows 10:
>>> import sys, numpy, matplotlib
>>> print(sys.version, numpy.__version__, matplotlib.__version__)
('2....
2
votes
1answer
73 views
Getting coordinates on click and pass it to dialog using PyQGIS?
I am creating a plugin in which i need to get coordinates by clicking on QGIS canvas so i tried the solution mentionned at Getting coordinates by clicking on QGIS Canvas with PyQGIS? but it didn't ...
1
vote
1answer
51 views
To update Point location every 1 second
I am using update cursor to change the location of a point with FID = 0 every second, but whenever I run the code my ArcGIS freezes and point doesnot move. I am visualizing an output where the point ...
1
vote
0answers
41 views
Snapping line to polygon border using PyQGIS?
I want to snap the line (completely present inside the polygon) to polygon boundary. I tried create 10 m buffer on line start and end point to get polygon and check intersection between line and ...
0
votes
2answers
295 views
How to create a weighted square lattice as well as a weighted network graph
I am planning to create a weighted square lattice for different sizes, and then label each edge with its associated weight. It's similar to this thread "How to load a weighed shapefile in networkX" ...
2
votes
1answer
32 views
I have the following multilinestring, and I am looking for finding the intersection between each pair
I have a pair of lines, which I like to find the intersect of each of one them with each other. I know for two lines I can do the following:
from shapely.geometry import LineString
line1 = ...
0
votes
0answers
79 views
Loading .qgs and .qpt files in standalone PyQGIS script?
I have a .qgs and .qpt files. And I would like to know if it is possible to use them in a standalone PyQGIS script?
I am using QGIS 2.18 and Python 2.7
This is the template that I would like to use.
...
1
vote
0answers
26 views
JSON response to shapefile [closed]
I'm collecting road accidents from an API through a Python request and getting my response as JSON. The JSON response contains coordinates and general information as below.
{u'RESPONSE': {u'RESULT': ...
1
vote
0answers
57 views
How to find which direction to flow between two points in QGIS Python? [closed]
I want to find which way direction to go based on two points and line segment.
I have two layer line layer and point layer.user selects the two points in lines layer.
I have to find which direction to ...
1
vote
0answers
57 views
QGIS temporary layer to PostGIS table database
I have an empty polygon table in PostgreSQL/PostGIS database with fields (id,field_1).
after some processing in QGIS using pyqgis and processing toolbar I create some temporary layer like this case :
...
0
votes
1answer
126 views
How can I run an ArcPy Python Toolbox from Python3-shell?
I am trying to port an arcpy python toolbox from ArcMap to ArcGIS Pro. In ArcMap I had to use the 64-Bit-geoprocessing tool because of the size of the datasets, so I wrote a wrapper-Script for the ...
4
votes
1answer
279 views
Filter vector layer by searching through complete attribute table - limitations and improvements
In a case were I have a shapefile with a lot of attributes (predominantly text), also I don't have any information about the structure and I don't have any idea in which attribute I have to search/...
0
votes
0answers
31 views
arcpy.Project_management - different results from python shell and python command line
I am trying to transform a number of shapefiles by script using a self-defined custom transformation. When I transform the shapefile using my script in the python shell of the ArcGis GUI everything ...
2
votes
1answer
259 views
Accessing Home directory of ArcMap using ArcPy?
I want to access to a directory and set that as a arcpy.env.workspace in my Python Script Tool. However, this workspace depends on users so I cannot just use my own folders.
Is there a way to access ...
1
vote
0answers
21 views
Snap pour points not recognizing sample sites as valid points when using ArcPy?
I am trying to go from a CSV of sample sites and a DEM to creating watersheds. I can process the DEM fine to stream networks and can import the points (first to event layer, then convert them to a ...
0
votes
0answers
120 views
How to upload ImageCollection from GEE to CloudStorage (Bucket) automatically Python/JavaScript [duplicate]
I have some ImageCollection with around 120 images in the GEE Web IDE. I want to upload them to a Google Cloud storage bucket. But it raises the Error: I think because the export function is only for ...
0
votes
1answer
88 views
Get Messages from Geoprocessing Service
I have created a Geoprocessing service that is hosted on a server inside our firewall (ArcGIS Enterprise 10.6). The GP service adds messages via arcpy.AddMessage("msg").
Locally, I import the toolbox ...
1
vote
1answer
106 views
Array in python just full of zeros when opened using GDAL
I'm working on the below script. What I'm trying to do is create a stats.txt file output which has the Land Cover Class ID, Fractional Coverage (of that class) and the number of pixels (of that class) ...
2
votes
1answer
147 views
How to find how grass's r.viewshed works programmatically?
I want the Python source code of Grass's Viewshed analysis. In QGIS software there is only an .exe file of that algorithm. Although I'm not sure whether it's written also in python or not.
Where can ...
0
votes
1answer
45 views
PyQGIS import from UI class problem
I've tried to build a plugin from scratch to better understand the plugin structure and so on without the help of PluginBuilder or similar tools so my code could contain flaws. I went through every ...
0
votes
1answer
924 views
NumPy array to Raster file (GeoTIFF)
I converted a raster file (one band grey scale) to an numpy array and set a range to it. I Did like that:
import gdal
import numpy
ds = gdal.Open('H:/GDAL_docs/a.tif')
myarray = numpy.array(ds....
