An arrangement of quantities, symbols or objects in rows and columns; a matrix
2
votes
1answer
58 views
What is the purpose of arcpy.Array()?
I am wondering what the purpose of arcpy.Array() is. It seems an intermediate step between creating a list of objects and performing some sort of conversion, for example, such as in the sample code ...
0
votes
0answers
9 views
Identify task on multiple layers into a pop up window with the arcgis javascript api
I am trying to create a pop up window when I click on a feature included in my map that displays their attributes. I want it to apply to all visible layers. So far this is a working section of code I ...
0
votes
2answers
29 views
Perform band calc in numpy array
I'd like to perform a band calc in some raster bands. What I am trying to do is import the raster (ENVI format) like array with gdal, then I do the calc but when I try to save the raster I get an ...
2
votes
0answers
24 views
Load Multiple WFS layers from array with OpenLayers
looking for some help here.
I have a layer on my Geoserver that contains a few dozen pipeline alignments in a single layer. My goal is to get those into the map frame as individual layers by ...
0
votes
2answers
27 views
Arcpy array TypeError: Abstract Class
I am using arc 10.2. Every time I add an array both python 2.7 and as a tool in Arc I am getting a "TypeError: Abstract Class". I have also tried changing my script multiple times to make the array ...
0
votes
1answer
20 views
How to use an array for buffer
I want to to use an array to create 3 buffer files with different buffer distances. The code should produce 3 buffer files in one step. Additionally, the code below runs already after using an ArcGIS ...
0
votes
0answers
20 views
Open Layers 3 Dynamically or Batch Add Layers from user folder
I would like to dynamically load all layers (kml, for instance) from a user's folder to a group map. ...This likely requires an iteration that searches the folder and adds the layers to the users' ...
1
vote
1answer
290 views
AttributeError: 'module' object has no attribute 'TabletoNumPyArray'
I am trying to create a Python array using data from an ArcGIS attribute table. Here's the code I've written so far:
import arcpy
import numpy
input = "c:/data/from/arcgis"
arr = ...
1
vote
2answers
54 views
Editing .tiff rasters in Python
I am triying to edit .tif rasters in python, but I have some issues regarding the tiff to array converstion.
I read there are multiple options for opening rasters (gdal, PIL, matplotlib), but which ...
0
votes
0answers
44 views
Adding Array of strings in File geodatabase feature-class' field
I need to include array type in file geodatabase/shapefile field's content so that when i expose it as a map service, i can get array instead of string or integer.
e.g., i got fields:
OBJECTID, ...
0
votes
1answer
175 views
Loading GeoJSON data into an array with OpenLayers 3?
First off I'm using OL 3.6 with no additional plugins.
Pretty simple question that I thought would have been asked already/would have been much more readily available, is there a way to store points ...
1
vote
2answers
116 views
Create an array from field values in ArcPy
I have a feature class that has a field of unique ID numbers. I would like to create an array of these numbers so I can loop over them in ArcPy. Any ideas?
0
votes
0answers
58 views
Python error in array declaration
I am getting a error as follows File "C:\Program Files (x86)\ArcGIS\Desktop10.3\ArcPy\arcpy__init__.py", line 2292, in NumPyArrayToRaster
return _NumPyArrayToRaster(*args, **kwargs)
ValueError: ...
0
votes
0answers
39 views
Create RasterDataSet from 2d array
How i can create RasterDataset using a 2D double array : double[][] pixels OR float[][]
i tried tow ways using IRasterDataset
1-
IPixelBlock outBlock = outRawPixel.createPixelBlock(pnt);
...
3
votes
3answers
213 views
Creating polygon from 2 txt files (Parent ID + Coordinates)
Here is what I am trying to do:
I want to create polygons based on two separate text files:
the first one (as parents) lists the Polygon ID (ID_el) and three to four Points ID (IDpt1, IDpt2, IDpt3..)
...
0
votes
0answers
58 views
Routes through centroids and array functions
I have a table stopcentroids4 like in figure with the following fields: gid, routes, geom
and i want to draw a line for each route that runs through centroids. In my code there is a mistake. ...
3
votes
1answer
148 views
Methods for converting a regular polygon grid to a numpy array
I have a regularly spaced model grid, 5000 by 5000 feet (517,300 cells), which I need to convert to a numpy array. I am investigation a couple of different methods, using arcpy, by which I can convert ...
0
votes
0answers
113 views
Array to Feature Class and XYZ to Table Issues
I am trying export vertices of a line to a point feature class using the code below. I am using ArcGIS 10.2.2 and do not have access to Spatial, 3D, or Network analyst. I used ET GeoWizards to export ...
1
vote
0answers
102 views
Using gdal ReadAsArray or Arcpy.RasterToNumPyArray on python 2.6 32bit without it crashing
I am trying to run ReadAsArray on an entire raster and on a single band, python will crash without an error message when trying to do either. Is there a way I can create a 3d array without having to ...
1
vote
0answers
92 views
How to count the number of coordinates within x meters grouping by distinct ids?
I have a table "items" of about 1 million rows and 40.000 distinct ids like the following:
idx | id | point | lat | lon | the_geom
1 | 1 | 76 | 51.463388 | -0.16869856 | 0101000020E...
2 | 1 | 53 | ...
1
vote
1answer
1k views
Create polylines from point array Python
I am working on building polylines from an array of points I have created from a csv file and am completely lost in building the lines. My code works as follows: I have the point array working, I need ...
0
votes
1answer
387 views
Print last digit in Numpy Array [closed]
I'm sure this is pretty basic, but is there a way to print a certain indexed portion of each segment in an array? For example, if I have the numpy array:
([1,2,3], [4,5,6], [7,8,9])
I'd like to ...
0
votes
0answers
123 views
finding length of a custom type array in mapbasic
Hello I am just getting started with MapBasic and I have run in to some trouble trying to count the items in a custom type i have tried accomplishing this by running a loop until an error occur. ...
0
votes
1answer
152 views
Filter on a array of value in OpenLayers
I'm running into an issue.
I have an array of value coming from a JSON POST.
After retrieving these values and storing them into a var, I need to filter an OpenLayers layer with this values.
I'm ...
1
vote
3answers
2k views
Is it possible to open rasters as array in NumPy without using another library?
I know that it is possible to open a raster as an array in NumPy using GDAL, but I want to skip GDAL and use NumPy only, as it is cooler handling rasters with NumPy as matrices.
There is a similar ...
11
votes
3answers
746 views
How to convert LAS file to numpy array?
I have begun learning how to manipulate LAS data in python and wanted to see how others handle LAS files. I would like to read the points (I am using a numpy array), and filter out classes 1 and 2 ...
0
votes
1answer
135 views
Server Object Extension MultiPoint Input [closed]
I have soe which accepts {x:-112,y:35} as input parameter.
how can I modify the soe code so that I can pass more than one point as my input parameters like
{x:-112,y:35},{x:-113,36},{x:-113.5,y:34} ...
0
votes
0answers
392 views
OpenLayers LineString: Not displaying the line (array of points)
I'm perplexed as to why tail_path is not drawing the line (can't see anything on the map) but the alert seems to be returning the correct data.
var path_travelled = new Array();
var path = ...
2
votes
0answers
375 views
Finding coordinates from a nested grid as a numpy array
So this is a pretty basic question, but I'm trying to figure it out. I've written a script that allows a user to read in a raster and provide a cell resolution, and outputs the amount of cells ...
1
vote
1answer
1k views
Refresh map after removing marker from array
I have a map an arrays of markers. This code:
function RemoveRedMarker(siteID) {
for (var x in arrRedMarkers) {
if (arrRedMarkers[x].SiteID == siteID) {
...
0
votes
1answer
152 views
Can I view a Postgis Geometry Array in QGIS?
I have got an array of geometry as a column in postgis database. Is it possible to view the data (even the nth element?) in qgis?
1
vote
2answers
178 views
Is it possible to export a GeoJSON with an array field from a joined layer?
I'm using QGIS to 1) load a shapefile, 2) join the shapefile data with a CSV-file and finally 3) exporting the layer as GeoJSON. Hence, I end up with something like this, where the properties object ...
2
votes
2answers
745 views
How do I sort a geoJSON feature collection alphabetically by a property value?
I am trying to sort the objects in a geoJSON FeatureCollection alphabetically by the values of one of their properties. How do I get to the nested object properties with JavaScript? I have tried using ...
2
votes
1answer
951 views
How to get polygons from PostGIS table to PHP array best?
Currently I fetch polygons from a database table using ST_AsText(). The results are in text format, like the following.
POLYGON((84 104,212 48,321 122,243 179,275 238,131 240,84 104))
I am not ...
10
votes
3answers
2k views
Gdal Dataset.ReadAsArray() crashes Python
I am using Python 2.6.5 (32bit) with Numpy 1.3 and Gdal 1.9.1 installed on Windows 7 64bit. I am trying to read an 800 MB Imagine (.img) raster dataset into a Numpy array to do some raster algebra, ...
0
votes
1answer
92 views
trying to create array reader for feature fields
I am trying to create a functionality that creates array data for any layer that user selects. Now I am able to get all the data in the feature layer that the user selects but I am having some trouble ...
3
votes
1answer
230 views
Create Array From Selected Features Based on the Order in Which They Were Selected
I need to create an array of features from a selection based on the order in which they were selected.
As in: I select feature 5,2,3,4. I need to have an array so I can apply attributes (with python) ...
3
votes
3answers
638 views
Convert cursor output to list of geometries
I want to convert all the geometries returned by search cursor to a list.
import math
import arcpy
from arcpy import env
env.workspace = r"C:\GIS Data\GIS data_for Maeenul vai"
desc = ...
