A geometric element defined by a pair of x,y coordinates.
0
votes
2answers
12 views
Creating 3D line features based on 3D point features
Is it possible, in ArcGIS, to create a 3D line feature by connecting 3D point features? The version is ArcGIS 10.0, in case this helps.
4
votes
4answers
86 views
How do I fill in serial letters (AA, AB,AC…,BA,BB,BC…ZZ) to a shape?
(I am using ArcGIS software, ArcMap...)
MY PROBLEM
I have a shape file containing points. The shape file contains 3 columns named FID, Shape* and Label. In the column I want to fill in AA, AB, ...
-1
votes
1answer
45 views
QGIS and Python - create line with multiple points in postgis
How can I create a line, with Python functions, with many points that are records in Postgis?
Thank you
0
votes
0answers
27 views
Assuming nearest point for a region
I'm mapping agricultural cropping systems in Brazil using QGIS. From satellite images I got an raster file with 5136 x 5136 pixels from my field work.
Now I need to associate many soil/climate ...
0
votes
0answers
35 views
Creating a 3D line feature based on 3D point features
In ArcGIS, is it possible to create a 3D line feature by drawing a line that connects 3D point features?
1
vote
1answer
25 views
generate random world point geometries
I have a world map. I need random point geometry. So, how can I randomly generate point coordinates? Any programming language. Also, I am using SRID 4326.
Any programming language.
0
votes
2answers
46 views
Joining Points and Polygons
I am new at using arcGIS 9.3.1 and am having trouble joining data. I have a shapefile of census tract polygons and a separate file of points that are crimes in Chicago in 2010. The crime points were ...
1
vote
1answer
45 views
random sampling from spatial points in R
Can anyone help me out on the best package to sample from a spatial point dataset?
My dataset consists of a list of positions inside a region, and for each point I also have the name/number of the ...
1
vote
2answers
38 views
simplify point geometry
I have a great amount of points and I need to show them on map. I am using OpenLayers. Is it possible to simplify point geometry in order to speed up the process of rendering?
2
votes
0answers
62 views
Problems converting polygon to point
I'm trying to convert polygons to points with ArcGIS 10. My polygon layer has 2 attributes that I want to give to my point layer. I'm using the Feature to Point function from the Arctoolbox, but it ...
0
votes
1answer
68 views
Aggregate points with same values to polygons
I have a shapefile with 2M measurement points (each measurement point has a resolution of a 1/10). How can I aggregate points around each other if and create polygons out of it?
They do not have to ...
-4
votes
0answers
59 views
Re-referencing points [closed]
Hello I wanted to know how to re-reference points. I currently have points that are referenced to a coordinate system and the map is set to the same coordinate system. But the actual points are not ...
0
votes
0answers
28 views
How to add vertices to existing linestrings in mysql?
Is it possible to add a Point at the end of a Linestring in MySql?
For example I have a Linestring as
Linestring(1 2, 1 4, 1 6)
and I want to add a Point
Point(1 7)
at the end (output should ...
1
vote
0answers
75 views
How to calculate average value within a polygon(in Qgis with Python)?
Now I have a point and polygon shapefile
and I want to calculate the points' average value within each polygons
How to do it with python?
I tried to find out but google gives me a lot of raster ...
1
vote
0answers
36 views
Join .csv file and .shp of georeferenced points
I have georeferenced a map and saved a selection of some points on the map. These points are cities of departure and arrival and I want to join the .shp with a and excel .csv with the information of ...
