0
votes
0answers
5 views

Interpolation using GDAL

I am looking for some hints here. There is a shape file with point data of rainfall sampled at a regular grid, and there is a shape file with point data of soil attributes sampled at a regular grip ...
0
votes
0answers
7 views

Export data from SDE gdb atribute table to a file or personal gdb

I'm currently learning GIS and I'm working on a project, I'm doing my own research and trying to accomplish the following with or without Python: Export data from an SDE geodatabase attribute table ...
0
votes
0answers
10 views

Spatial Data Mining theme

I have question related to a study theme on Spatial Data Mining. Turns out that I have the data of Missouri rivers (lines), counties (multilines) with their crime rate and the factories that handle ...
0
votes
0answers
12 views

How do I create full-resolution footprints in an ArcGIS mosaic dataset?

In ArcGIS Desktop 10.3, I want to create full resolution footprints in a mosaic dataset to avoid having black areas in the mosaic. When I create footprints ("Build Footprints" tool) using the default ...
0
votes
0answers
3 views

GeoServer App-schema with Postgres “No FID expression found” error

Running Geoserver app-schema on Postgres, a GetFeature request gives an intermittent error: "java.lang.IllegalStateException: No FID expression found for type ...
0
votes
0answers
3 views

Importing and exporting KML into and from DashDB for Geospatial Analysis

I am a recent convert to IBM's DashDB, and I considering proposing to use it at my work. My case would greatly be bolstered if I could show good, easy integration for geospatial analytics data, namely ...
0
votes
0answers
23 views

I need to count the number of features that fall inside a polygon feature [on hold]

Feature class that will be used as the grid and needs to contain the counts for each feature class is a United States polygon feature class. The feature classes to be summarized are points, lines and ...
0
votes
0answers
8 views

getFeatureInfo in WMS using a box?

I'm using this WMS service http://www.cartografiarl.regione.liguria.it/mapfiles/repertoriocartografico/LAVORIINCORSO/1633.asp?REQUEST=GetCapabilities&SERVICE=WMS&VERSION=1.3 I can query it ...
0
votes
4answers
34 views

How to remove period, comma, symbols using field calculator?

I want to delete . , # in attribute table using field calculator (VB Script or Python). How can I remove these using this example address: N. First St., Unit #1 (I don't need city or state name) I ...
1
vote
1answer
13 views

Set GPLinearUnit type parameter default based on input spatial reference (Buffer Example)

Within a .pyt python toolbox I'd like to have a parameter of data type GPLinearUnit get a default value based on an input Feature Class (FC). The standard Buffer (Analysis) tool works as a great ...
0
votes
0answers
5 views

Do projections matter for zonal stat/isectpolyrst?

I have a gridded product (at 5 arc-minute resolution) and I have to summarize the raster cell values that are contained in another polygon layer. The raster product doesn't have a spatial reference ...
0
votes
1answer
17 views

Iterate through all fields in attribute table and multiply by field

I have a table with a whole bunch of census variables (race, age, education, etc). I want to multiply all of these fields by a factor that I calculated. For example: Field1 has values of 10,20,30,40 ...
0
votes
0answers
13 views

How to create a US map in R with separation between states and clear labels?

I was trying to figure out how to create a map like down below in R on the Stack Exchange but maybe that's the wrong community and the GIS side is a better spot. Currently, I'm able to add the ...
0
votes
1answer
13 views

Fix Self Intersecting Polygons Manually

I are looking to implement a method to fix self-intersecting polygons by editing the vertex order. We want to take the polygon rings and re-arrange/add in vertices to make a valid polygon. This is ...
3
votes
5answers
40 views

How to add a point to existing attribute record, rather than edit attributes of an existing point?

I'm using ArcGIS 10 to create point data. Normally I would start an edit session, select point as a construction tool, click where I want a point to be, and then go in and edit the attributes. Say I ...
0
votes
2answers
27 views

SearchCursor doesn't return entire SHAPE field, how do I copy a row containing a SHAPE field?

I imported a shapefile into a feature class using arcpy.CopyFeatures_management(). It works and when I look at the feature class in ArcMap and TOAD, I see all the data and the SHAPE field is populated ...
0
votes
0answers
11 views

Is geotools transformation of EPSG:3785 (Web mercator) to EPSG:4326 wrong?

Using postgres (9.3.6) and postgis: select st_astext(st_transform(ST_GeomFromEWKT('SRID=3785;POINT( 7550310.77 4139679.02 )'), 4326)); This returns POINT(67.8255956454323 34.8217133646348) Using ...
0
votes
0answers
7 views

Live Updating Map With Large Dataset

I need to be able to display a map on a webpage with multiple layers of squares and points, possibly up to 10,000 objects per layer. There could be up to maybe 20 layers, but having move than a ...
0
votes
0answers
9 views

QGIS raster calculator wrong output

I am trying to create a mask from a DEM (SRTM tile) using raster calculator in QGIS. I have performed the same operation in ver 2.6 with no problem but in the current version the output is incorrect. ...
0
votes
1answer
15 views

How do I expand the .SDE file specified in my current workspace?

I'm storing my database connection in a .SDE file. When I output my feature class names in that database connection, I get the full path to the .SDE file. I want the details, like instance, for the ...
-2
votes
0answers
9 views

how to update a field of a feature class in a stand alone vb.net application

I want to update a field in a feature class out the arcgis environment in a vb.net stand alone application ( how to use arcobjects through vb.net to update attributes ) just a sample code please. many ...
0
votes
0answers
19 views

How do you unregister a table from a esri geodatabase?

How do you reverse the "Register with Geodatabase" operation? I reckon it isn't uncommon to accidentally register (since it is the first option on Manage menu in ArcCatalog 10.2). Is there a tool ...
1
vote
1answer
12 views

Iterative Mean of Means Infinite Loop for calculating H-t Index

I'm trying to create a function that will calculate an Ht-Index for Quantifying the Fractal or Scaling Structure of Geographic Features (but am new to R) which basically just finds nested means of ...
1
vote
1answer
17 views

How to fix hatched symbol in polygons?

I want to create polygons which contain the hatch in this picture. Diagonals must intersect in the middle of squares. But when I change scale, the intersection moves. How can I fix the intersection? ...
0
votes
0answers
21 views

Raster displaying in ArcGIS

Can anyone please explain this to me? I need the image to be displayed right in any case as I will be using it in different programs. When I open this raster image in an existing ArcGIS map it ...
0
votes
0answers
7 views

How to create an image of maximum pixel values from an input layer-stack image in ERDAS Imagine?

I have 12 MODIS images (one of each month). I want to create a single image having maximum annual pixel values for each pixel. I did layer stacking operation in Erdas Imagine 13, but how to extract ...
1
vote
0answers
8 views

How do I make a thematic layer 50% translucent in MapBasic?

I'm trying to make this enhancement to an old program written by another author. I was able to make the layer translucent prior to Shade Window command, but its not working. Here is the code: Add Map ...
0
votes
0answers
34 views

Polygons not showing in ArcGIS for Desktop?

I am using ArcGIS 10.2. I have used the following procedure to creat polygon: 'Add XY data' to create points 'XY to line' to create line (but I could not see the lines) 'feature to polygon' to ...
1
vote
0answers
18 views

Performing Maximum Likelihood Classification in R

I'm trying to perform maximum likelihood classification of landsat imagery using R, I have been searching for a package that implements it but so far I haven't found it. What is the easiest way to ...
2
votes
1answer
11 views

Registered folder with ArcGIS for Server 10.2, will changes to data in folder go live on Server/REST?

I've registered a folder that contains a .gdb with some feature classes with ArcGIS Server 10.2 and exposed the data (read privileges) to the ArcGIS Server domain user account. I'm using these ...
1
vote
2answers
37 views

Arcpy Export to PDF, loop Element Text to change with each PDF

I am building a script that exports pdfs based on user input, each pdf will need a different date (not current) that the data was updated per the data driven attribute. The script runs fine but is ...
0
votes
0answers
17 views

ArcMap 10.1 - Tools within Drawing toolbar are disabled/grayed out

I'm wanting to draw a graphic on the map but the option to select a graphic is disabled/grayed out.
1
vote
1answer
16 views

Conversion: Specific Humidity to Relative Humidity Using netCDF4

I am currently working with netCDF4 files from the NCEP Reanalysis dataset 1. The surface flux data does not include relative humidity, but I will need this for my calculations. I have found ...
1
vote
1answer
31 views

Editing a Map in Layout View

I am supposed to print the area closest to the blue line in the centre of a map that looks like this: I am not interested in seeing the imagery that is far away from the blue line in the centre. ...
3
votes
2answers
125 views

What is the theory behind graduated symbols in QGIS?

QGIS offers 5 methods of classifying vector map data (quantiles, equal interval, etc). What is the theoretical base of these methods? If there are certain methods suitable for certain types of data or ...
1
vote
0answers
36 views

What causes some shapefiles to be fat? Can you effectively reduce size of a fat shapefile?

I have a shapefile that contains all counties of Poland in one shapefile. The shapefile is provided by central cartography agency. The file with counties they provide is around 30mb. The same ...
1
vote
0answers
10 views

Random points by percent coverage [on hold]

Yes, I know the math behind this is simple, but I'm looking for a way to automate the process. In ArcGIS 10.2.2. is it possible with the Create Random Points data management tool to generate a set of ...
1
vote
0answers
8 views

Insert SDO_GEOMETRY in cx_oracle

I have many polygons to insert. This code is ready to use. geom_str = ...
1
vote
0answers
8 views

ArcGIS Server Image Service from Mosaic Layer

I have successfully created an image service from a mosaic dataset using NAIP imagery. I would like to create another image service that displays the same area in NIR (4,3,2). I have created a mosaic ...
1
vote
0answers
28 views

Raster overlay with different projection in Google Maps

I have a map created with Google Maps. I want to overlay over some data I am downloading dynamically, covering the whole world. That data is a matrix as follows: 1024 values for the longitude ...
1
vote
0answers
12 views

QGIS 2.6 - installing exifread for photo2shape plugin

I've already seen Error loading plugin photo2shape even after installing exifread module and Error installing Photo2Shape QGIS 2.6 for Mac, and other forums, but can´t make it work. First I installed ...
1
vote
0answers
16 views

clip csv-file with ogr2ogr

I'm trying to clip a csv-file containing xyz-data (points) by an irregular shaped polygon in ogr2ogr. My code runs without any errors or warnings, but it returns an exact copy of the input-csv. What ...
1
vote
1answer
23 views

Viewing pseudo node and dangle nodes using ArcPy?

We know that we require production mapping extension and ARCINFO license to view the pseude node and dangle nodes.We have to see these nodes without these functionality through python scripting
1
vote
1answer
15 views

ArcMap, Editor and Geodatabase API edit session question

Say a feature class from a File GDB is added to ArcMap and an editing session on it is in progress. What happens if an add-in launched from the same ArcMap session tries to start an edit session using ...
2
votes
0answers
16 views

Merge several images and Export a GeoTiff File

I have approx 500 geo-referenced images that I was hoping to merge into 1 geo-referenced file, and export it as a single geotiff file. To be used in AutoCAD Civil 3D I know I am pushing my luck and ...
2
votes
0answers
12 views

Leaflet: get the color of a specified pixel on the map

I need to get the color of a specified pixel on the map. How can I do it using the current API of Leaflet?
2
votes
3answers
18 views

GetRasterBand() method for gdal in Python

I was going through a tutorial book called Python Geospatial Development. On the chapter on using working with geospatial data in python there is an example of a script meant to handle and analysis ...
2
votes
2answers
83 views

How to populate attribute table with sequential numbers?

Using Python, how can we populate a field in a feature class automatically in increasing order? The user must be able to provide the start number. For example, say he wants to populate values from 51 ...
2
votes
1answer
32 views

Accessing geojson properties using OpenLayers3

Is it possible to access geojson properties using the OpenLayers library? I tried to search for it but couldn't find any proper answer. According to my research, the library converts each geojson ...
1
vote
0answers
14 views

Shapefile on the distribution of ethnic groups across China?

I am looking for an up to date shape file of the distribution of ethnic groups in China. Does anyone have any suggestions?

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