An arrangement of quantities, symbols or objects in rows and columns; a matrix

learn more… | top users | synonyms

2
votes
0answers
295 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
0answers
73 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
69 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 | ...
0
votes
0answers
36 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. ...
0
votes
0answers
80 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 ...
0
votes
0answers
92 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
0answers
330 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 = ...