0
votes
0answers
2 views

PostGis: find distance if closer than X. For huge sets

I have two tables (that can have different geometry: point, line, polygons, ecc...) and I have to find distances: for all features in table A, for all features in table B, if feature is closer ...
0
votes
0answers
2 views

Show information from a KML in a Framedcloud?

I'm building a map with OpenLayers on my website to share the best roads, trips and places I've been in my motorcycles trips. I put together few kml files and used FramedCloud to show popups with ...
0
votes
0answers
2 views

Algorithms + additional information

I would like to know where i could find information or some instructions for algorithms. For example algorithms to calculate routes between cities or to optimize the way a route is calculated when you ...
0
votes
0answers
3 views

QGIS Print Composer - SVG output displays objects outside the frame

On Windows 7. QGIS 2.6.0 from OSGEO network installer 64bit (and checked with latest dev version) I am preparing a print composer map displaying only vector data (shp). Data in the map canvas and the ...
0
votes
0answers
2 views

CartoDB - Update column from local csv

So I uploaded a csv from my local drive and set up the map, but I would like to update a column of data every day and re-upload the csv, but keep map settings. The dataset is very simple: one column ...
2
votes
0answers
10 views

Why are my polygons automatically simplified/generalised when merging them in ArcMap 10.2?

I am creating a small land use map, as an exercise for visual image interpretation. I created a shapefile and started digitising polyogons with the polygon tool. The problem is that some of my ...
0
votes
2answers
11 views

How to obtain data to create average precipitation in 2012?

I am currently doing a final project, which I have to create a map of 2012 average precipitation of lower 48 states by using natural neighbour interpolation. The problem is that how can I get the ...
0
votes
0answers
5 views

Export to Oracle using QGIS

I have loaded a shapefile into QGIS and I now want to export it into our Oracle Database and add SDO_GEOMETRY. Is it possible to do this directly in QGIS? If not, what opensource options do I have to ...
0
votes
0answers
10 views

error converting shapefile to geoJSON with Ogre online tool

I am using on online tool built with ogr2ogr to convert shapefiles to geoJSON: http://ogre.adc4gis.com/ It's worked well except for one shapefile, and I can't see why... The shapefile has only six ...
1
vote
1answer
15 views

How to pick adjacent GeoTIFF files out of a set?

I have a large amount of large GeoTIFF images. Their names are arbitrary and the person that created them does not work here with us anymore. I need to do some programming experiment. How can I pick ...
0
votes
0answers
4 views

Remove sections, defined by a line or polygon, from a raster in QGIS

(QGIS 2.6.0 on Windows.) I have created a raster layer of heights using the TIN interpolate function. I also have another raster layer with more accurate information on the height of particular areas ...
0
votes
0answers
6 views

I'd like to change the style of a polygon based on its size in Mapserver? [on hold]

I would like any polygons on a certain layer that are larger than 40,000 square feet to draw as transparent.
1
vote
0answers
4 views

Is product purchaser in distribution area?

I am going to be using PostGIS 2 to create a lookup service. Given a point (lat/lon), I need to either find if a product can be distributed there, or b) a list of products or distributors. I am ...
2
votes
0answers
6 views

Is it possible to add an ArcGIS attachment to a row in Oracle/SDE using oracle stored procedures?

So far I have been able to attach files to features within a featureclass using the python tools and ArcObjects. Within Oracle I have been able to add features with geometries using the ST_Geometry ...
1
vote
0answers
3 views

How to create a infotemplate that displays automatically

I have created a postcode search that that highlights a polygon and zooms in. but I would like it to display a infoTemplate box with having to click in it. I want it to show when the function runs. ...
1
vote
0answers
6 views

How do I use validation to create a parameter based on the fields of another parameters input

I'm assuming I'm missing something and this is a pretty easy thing to do but I'm stumped... I'm working on a script that currently takes and input excel file and uses a "hard coded" field name that I ...
-1
votes
0answers
23 views

query (select) only for buildings [on hold]

can someone helps me with a single query that would give me back only buildings (houses, storages, etc) but only buildings. I would really appreciate this. best, Tomaz
1
vote
2answers
37 views

What is the smallest size a point can be represented on ArcMap 10.2?

I have a large number of points that I need to plot and want to avoid overlaying them wherever possible. Whenever I choose a figure <1 for their size, I don't see any difference, yet ArcMap seems ...
1
vote
0answers
16 views

python shell crashes on table to table conversion

I have two computers running the same code and on one (with better performace) it runs fine but the other crashes the python shell when executing the code below. I really don't understand why, any ...
1
vote
1answer
12 views

Leafletjs get latlng center position of polyline

After drawing a polyline, I would like to draw a circle from the center of this line whose radius encompasses the entire line. For polyline's that have more than 2 points I can crudely get the center ...
0
votes
0answers
24 views

OpenLayers and GeoJSON

there! Recently I started learning Openlayers 2x and I've been struggling for a while now with a GeoJSON and it's projections. So, here is the deal; I successfully added wms layers from ( ...
0
votes
0answers
7 views

Where is documentation for OSGeo FDO API?

Can anybody help me to find the documentation for OSGeo FDO API for .net and for NetTopologySuite API ?
0
votes
0answers
8 views

Slanted raster along the line? Wind erosion model and windbreak effectivity

I'm working on wind erosion modelling and windbreak potential. Imagine windbreak, which has some values of optical porosity (in %) and this values determinates the effectivity of windbreak in specific ...
0
votes
0answers
7 views

QGIS formatting problem using POSTGIS (datetime)

I want to use the time manager plugin using data from a PostreSQL-db. In there the time stamp is set up as follows: "[...]to_timestamp('2014-10-21 00:00:00', 'YYYY-MM-DD HH24:MI:SS')::timestamp ...
0
votes
3answers
16 views

How can I display a symbol to a specific attibute in QGIS

I have a point shapefile, where I categorized my waypoints with attributes (schools, toilets, etc) and I would like to display certain attributes with specific symbols. How can this be done? Thank ...
0
votes
1answer
26 views

Solving “Traveling Purchaser Problem”

Till now, I was using PostGIS-pgrouting pgr_tsp function to solve Travelling Salesman Problems. This function can give us the best possible route depending upon the cost parameter when the starting, ...
0
votes
0answers
5 views

how to connect with MS sql server 2014 with Geo server 2.6

I am working with MS Sq l server 2014 and want to developed a web based application with Geo server 2.6 .............i am not able to see the MS Sq l server option in Data->Store please provide ...
0
votes
0answers
8 views

Can I plot points on a map using JSON data from a Node.js API?

I am new to the arcGIS JavaScript API. I have a Node API that is providing geographical information in JSON. I have google'd for examples and searched for solutions on this web site. Can anyone ...
0
votes
0answers
9 views

Saving Map on Server Side as Image File

I am trying to save my openlayers map on the server, following these instructions, the sections Client-side: Tile collection and Server side: PHP: ...
0
votes
0answers
14 views

Apply css styles to layers in openlayers3

define layers and styles using openlayers3 API. i need 2 apply css styles for layers.for that code is in below used //applying styles for wms layer var fill = new ol.style.Fill({color: 'rgba(237, ...
0
votes
1answer
21 views

Loop stops before expected without error message

I try to run a script that clips all the feature class of a geodatabase by the successive features of a clip layer (named pochoir). Thank to support here and here, the test of the intersection is ...
0
votes
1answer
39 views

Best program or tool for visualising big data sets really fast 10-20 GB data if the users don't know squat about GIS?

I have between 10-20 GB various GIS-data that there is a need to set up och and visualise for various users who want to be able to pan, zoom and switch between various layers and groups of layers ...
0
votes
0answers
7 views

This._geometryService is null in mesurement wedjit arcgis javascript api

I'm working on arcgis javascript api, and I'm usint the measurement wedjit, it was working correctly, suddenly, after adding another features to the map, I discovered that the measurement tool is not ...
0
votes
0answers
17 views

Delete user on ArcGIS server against Oracle backend

I have a problem, when we delete users, using the following command: drop user sdedata cascade; We get the this error: ORA-00604: error occurred at recursive sql level 1 ORA-21700: object ...
0
votes
0answers
13 views

How can I draw a Line on a Shapefile?

I have a problem, in Java I can draw points on my Shapefile, but I don´t know how to draw a Line. I found the SimpleLineSymbol, but don´t know how to use it further. My first try was LineString ...
1
vote
1answer
10 views

QGIS geojson vector layer

When I add vector layer to QGIS using geojson protocol, data form server are being displayed. Problem is that every change of map extent (pan, zoomIn, ZomOut) is causing request for same data again. ...
0
votes
0answers
4 views

How can we extract feature for automation method using ERDAS Imagine 2013 software?

I have Quickbird Satellite data, hence I want to extraction from Building foot prints using automation method. Could you give whether its possible or not? If possible how can we use ERDAS Imagine ...
1
vote
0answers
14 views

SLD supports <Displacement>?

I am trying to give style to a vector point layer published on GeoServer and I can notice the displacement command is not working. (Displacement inside PointSymbolizer Graphic) Do you know it could ...
0
votes
0answers
20 views

strange result of spatial functions postgis

I have a problem with different result of spatial functions for same geometry. For some reason result I get when I use geometry from database is different then result when I load same geometry from ...
2
votes
1answer
30 views

Layer from PostGIS with array of integers fields?

I have GeoServer 2.6 and I published a vector layer (point) which some of the field attributes are integer's array. GeoServer doesn't recognize those fields in wfs call or even in the Feature Type ...
1
vote
0answers
8 views

Raster: how to locate cells having nodata

I am new to oracle spatial. I am using SDO_GEOR package's getNoData prcedure. the results are populated in following format. MDSYS.SDO_RANGE(MDSYS.SDO_RANGE(-32768,null)) My questions are: Is ...
0
votes
0answers
9 views

How can i solve multiple route in ArcGIS network dataset?

I created a network dataset using ArcGIS Network Analyst . I have one start and one destination .I want to find three shortest path from start t omy destination ( found three shortest paths from point ...
2
votes
2answers
30 views

What reflectance curve

I was wondering to what surface that reflectance curve belongs. It is definetely no water or snow since their reflectance drops at a much smaller wavelength. I was thinking about a dense cloud but the ...
0
votes
0answers
9 views

OpenLayers 3 - Monitor layer loading progress

I'm doing an upgrade from OpenLayers 2 to OpenLayers 3. In OL2, I was monitoring the loading progress of layers with their loadstart and loadend events. With grid layers I was even able to show a ...
1
vote
0answers
4 views

Connecting FME Server to Active Directory - Failed to create credential

I'm trying to use FME Server's Active Directory integration to authenticate users. The connection works but fails soon after (and single sign on fails). The account has permission to log on as a ...
1
vote
0answers
25 views

How to stylize/design maps without tools like m*p b*x (paid tools) using OSM data

I would like to know, how i'm able to stylize/design maps without using paid tools. I would love to work with Openstreetmap data. I know i could stylize these data in free GIS softwares like QGIS but ...
1
vote
0answers
9 views

how to convert shp and gis line and raster data to autocad (dwg or dxf) in QGIS or GRASS

I am trying to find out which is best free GIS program with ability to convert shp and line and raster files to files suitable for autocad (e.g. dwg and dxf). I have QGIS and GRASS. I get an error ...
0
votes
0answers
9 views

Openlayers - zoom specify a sub section of displayed map to zoom on

I have working solution with openlayers 2 ... moving assets are show on the screen, as soon as they go off the screen, the map pans so the asset is visible on screen (on map) However, on the left ...
0
votes
1answer
25 views

Crop one shape file using another shape file in QGIS

In QGIS 2.0.1, is there a way to automatically slice up one shape file and export it as multiple files using polygons defined in another shape file? I have a detailed shape file that categorizes the ...
1
vote
1answer
15 views

Long term NDVI mean from different resolution satellite imageries

I have 10 years satellite imageries of different resolution (Landsat TM, LISS3, AWiFS and Landsat 8). My aim is to generate long term mean NDVI from that data. Since the resolutions are not same, i ...

15 30 50 per page