2
votes
0answers
22 views

Polygon parcel division in python

Is there an open source tool or module in python that does parcel division of polygons like in ArcEditor?
0
votes
0answers
8 views

cartodb visualization ownership transfer

I have a visualization created in my cartodb personal account. Can I transfer this viz to my company's enterprise account without recreating it there?
1
vote
1answer
22 views

POSTGIS Raster - Merge polygon onto raster

I have two tables, SCHEDULE contains polygon geometries and RASTER contains raster tiles I want to take a polygon from the SCHEDULE table and overlay it on top of a set of RASTER tiles that intersect ...
-1
votes
0answers
22 views

GISBASE not set [on hold]

Hi am VERY new to all this. On Windows 7 and downloaded QGIS 2.4, I'm trying to follow a tutorial on how to manipulate Lidar data and have got to the "create new mapset" but cannot finish because says ...
1
vote
1answer
14 views

Invert gdalwrap cutline

I have a big raster image with medium details, but for some regions I do have far more details as a seperate raster image. Now I'd like to display both of them in my map that I render with Tilemill. ...
1
vote
1answer
29 views

Closest point on a line segment from point outside the line

From the above pic I found the value x from line (p1,p2) and point a. Using y=mx+b and an imaginary red line which is perpendicular to the black line having slope -1/m and the intersecting point ...
1
vote
0answers
26 views

How to compare polylines attribute from the same GRID cell in ArcGIS 10?

I need some help because I do not know how to model this issue: I have two polyline shapefiles. They have an attribute that I need to be compared. These are roads from different sources. So, I have ...
2
votes
3answers
105 views

Loop with arcpy.ListFiles

I'm super new on here and have also not much experience with Python but I really like to learn to work with this language. I'm tying to write a script for this: I think I need a for loop instead ...
1
vote
0answers
30 views

Error when adding WMS layer in OpenLayers from a geoserver

I try to add wms layer from geoserver: var layer = new OpenLayers.Layer.WMS(name, 'http://'+ self.objSettings.ip + ':' + self.objSettings.port + self.objSettings.wms, { srs: 'EPGS:4326', ...
1
vote
2answers
53 views

Relationship of QGIS to its sister programs?

I'v e been using QGIS 2.4 for a number of months now and we are using it a bit at work. I noted that when I did the initial install a number of new icons appeared on my desktop namely MSys QGIS ...
2
votes
1answer
18 views

Covert /z/x/y.jpg map tiles to something that can be provided using the WMS specification

We have generated some maps in our own software solution where the output is a map stored in XYZ tiling format. /zoom/x/y.jpg I got a request if I could provide it in a WMS. I am wondering if ...
0
votes
0answers
22 views

Lining up three Layers that use same Coordinate Reference System (CRS) in QGIS?

How do you make all borders of a layer equal? they should be equal but i don't know how, mCRS layer is all in philippine zone 5(EPSG:3125), with the same formula/equation, I'm new to QGIS and I'm ...
1
vote
1answer
28 views

Merged Layers turned into square shape cause by single layers in QGIS?

What I did is merged the 30 layers of the map (Isabela Map Province - Philippines) and below is what happened. How do i remove the inside map of the border? I'm new to QGIS and I'm using QGIS 2.4 ...
1
vote
0answers
13 views

Custom imagery not converted correctly in web Bing format tile with Global Mapper?

I have Custom image and I converted to that to the web bing format tiles with the help of global mapper but that are not produce correct quad key in each tile. On the bing map quad key is starte like ...
0
votes
1answer
35 views

How to add geometry field to existing Oracle table so it can be accessed by ArcGIS via ArcSDE? [on hold]

I'm a newcomer to ArcGIS. I built arcsde on top of oracle, and had created several tables in oracle before installing arcsde. Now, I want to add a geometry field to these tables. Is there any way to ...
1
vote
0answers
6 views

How to add a geometry field to an existing table in ArcGIS?

everyone I'm a newcomer to arcgis. I built arcsde on top of oracle, and had created several tables in oracle before installing arcsde. Now, I want to add a geometry field to these tables. Is there ...
-3
votes
0answers
19 views

How to create NDPI/ NDWI or NDTI in erdas imagine 9.2? [on hold]

I have Liss IV images but I dont know how to create the Normalized difference pond index (NDPI), Normalized difference water index (NDWI) or Normalized difference Turbidity index (NDTI) in Erdas 9.2 ...
0
votes
0answers
32 views

Calculate end point Height above the MSL of the target point given a starting point, distance, azimuth and elevation [duplicate]

We need to find the end point height (from the earth surface) given the start point lat, lon, azimuth (270 deg), distance (500 km) and elevation above the horizon of start point (10 deg). The ...
0
votes
0answers
17 views

How to hide overlays in Leaflet layerControl if geojson var not found?

i would like to perform a specific task: i have a set of geojson layers, loading features from local files. i have the layercontrol on the map showing available layers to show/hide now, regarding ...
3
votes
1answer
38 views

Displaying large number of polygons on web map?

I've started working on a project with a huge number of polygons, and I'm unsure of how to display/host it. The map I'd like to end up with will have three layers: 1) Shaded polygons representing ...
-1
votes
0answers
23 views

How to Add Polyline ID when it is created from points pair coordinates with arcpy?

The following link provide me the solution except i need to add Line ID from "Line_ID" field in same Excel. I could not make comment directly on that link to "Chad Cooper" as I am a new user here: How ...
0
votes
1answer
30 views

Can FileGDB SDK be made to support custom coordinate systems?

In May 2012, a question was asked about File Geodatabase (*.gdb) support in QGIS? In the comments there, it was pointed out by @MattWilkie that the FileGDB SDK does not support custom coordinate ...
3
votes
0answers
28 views

Mask Bridge with Road

Is there a tool to create mask between bridge line/point on road? The requirement to have gaps 0.2mm between road and bridge and the offset fill with white color. For now, I add a white line attach to ...
3
votes
1answer
30 views

QGIS: Need to remove unwanted white bands when raster layer are overlapping

In my project when raster layers are overlapping a white band appears the edge of the top layer. How can I remove it and obtain a seamless overlapping of the raster ? (I have try to built a vrt with ...
1
vote
0answers
22 views

PyQGIS: Editable Combobox for Value Map widget isses

I am having issues with an editable combo box in QGIS 2.4. The edit widget is set to Value Map with an uploaded CSV. However, if a new values (not included in the key value pair list) is added, the ...
1
vote
1answer
37 views

Creating New Layer After Sorting Attribute Table using QGIS?

I have been self-teaching myself some open source GIS. I downloaded QGIS and have been following this four part tutorial - ...
1
vote
1answer
15 views

QGIS: how to identify a visible raster layer among large view (composition of rasters)?

I have QGIS project loaded with many raster files. For a given area, (ex: under my mouse pointer), I am looking for way to identify which (raster)layer provides the visible data. To start, I will ...
0
votes
1answer
17 views

How does the radius work in Trilateration

I've been trying to understand the trilateration algorithm based on the wikipedia article. As of now, I have a system where I have the distance of 3 sensors wrt my position and i have the exact GPS ...
1
vote
0answers
31 views

How to interpret Lidar scan line problems?

I am calculating various gridmetrics using the Lidar processing tools in FUSION. The dataset I am working with contains 154 flight lines of high density data, at a nominal pulse spacing (NPS) of 1.5 ...
1
vote
0answers
14 views

Accessing results window from ArcObjects not using Geoprocessing

Is it at all possible to write messages to the results window in either/both ArcMap and ArcCatalog, straight from ArcObjects? I understand that each result comes from running a geoprocessing tool, ...
1
vote
1answer
22 views

QGIS 2.4 Attribute Table Search Bar?

I am learning how to use QGIS and am following various tutorials. My version of QGIS (2.4) does not have a "look for" search bar in the attribute table window as seen in older versions in screenshots ...
1
vote
1answer
23 views

QGIS GUI: How to get independant windows?

I am working with the georeferencer plugin, and I would like to have it working in fully independent windows. Is it possible ? Thanks for your help. Context: I am working with qgis 2.4 under ...
1
vote
0answers
25 views

Editing Feature Class using ArcObjects

I have a problem with editing feature class using arc Objects.Indeed I am working on it for a while and cant find any solution into doing it..I asked a question before about how to connect to database ...
1
vote
1answer
53 views

Moving object of fixed dimension without distortion

I am trying to move a polygon object in a shapefile to a new location. I will perform an offset so that the process can be automated by shifting the object to a new geographic coordinate or moved by ...
1
vote
0answers
10 views

Maperitive rule per source

I'm trying to make my own tiles for OpenStreemMaps but with a more "Google Maps" look. After a long time of playing with the rule properties I finally have the look I want but I have a problem. The ...
2
votes
2answers
327 views

How likely is it that Smartphone Camera GPS coordinates are wrong?

According to the coordinates printed directly on this photo of my late son Kelvin here: https://www.dropbox.com/sc/w6tvwuvbosuh9rk/AADzT-3vDXcFQ9LnKK1BYMZUa ...and the Exif data from the .jpg: ...
0
votes
3answers
29 views

Calculate distance using 2 sets of lat/long values in the same record

I have a point layer with over 90K records in it. For each record I have lat/long field for incident, and lat/long for engine location. Is there a way to find the distance between Incident point and ...
3
votes
1answer
44 views

How to create randomly points within polygons for each row of a dataframe matching a Polygon ID with R

My question is similar to this post, but because there are no "perfect" answer and above all no reproducible example I open this question. I have a "SpatialPolygonsDataFrame" and a data frame. Both ...
0
votes
1answer
14 views

How I can get coordinates by clicking on the QGis Canvas with PyQGIS?

Please, does anybody knows if there are any procedure on QgsMapCanvas (pyqgis, qgis) in order to obtain a pair of coordinates by clicking on the map canvas? Are there any python code I can see?
0
votes
1answer
32 views

Having trouble with clipping tool giving incorrect shape

I am trying to clip a shapefile of the Midwest using a Great Lakes shapefile so that it matches my political areas boundary. Whenever I use the Clip tool, it outputs the lakes clipped to states, ...
0
votes
0answers
28 views

Obtain an altimetric map from a layer with lines

I have a layer with contour line and I need a map with polygons colored depending on altitude. Something like this The three shades of brown identify slope: absent, moderate or marked. I know ...
0
votes
1answer
22 views

postgis loader osm shapefile

I downloaded the map of my city already in shapefile into postgis http://metro.teczno.com/ to load in order to consult routes using pgRouting. Iss happening the error: http://metro.teczno.com/ ...
2
votes
1answer
35 views

Using get count with if statment

Pretty simple question though I am struggling with how to operationalize this, I want to rename a shapefile based on the number of features it contains. My initial thoughts are that I would need to ...
1
vote
1answer
41 views

How can I perform linear regression on a file geodatabase table in ArcGIS?

I'm trying to use the Ordinary Least Squares tool in ArcGIS 10.2 but it only accepts feature classes as input and I have a file geodatabase table. I realize that I can export the table to Excel or ...
0
votes
0answers
11 views

Failing to get wkt to reference for a multiline

I apologize, I'm quite new to WKT (and most everything else). I have a shape that I've exported to csv. & geoJson to be loaded into CartoDB. Unfortunately, the geoJson doesn't work so I am trying ...
0
votes
1answer
12 views

OpenGeo-Suite SDK add Pan button

Ok, this may obvious but I can’t find the answer anywhere... I´m building an app using OpenGeo Suite SDK and I need to add a Pan tool. By default the pan option is activated, but, if I enable another ...
0
votes
0answers
6 views

How can I fix the issue in the TIGER loader that causes it to fetch all files when loading Kansas?

I've discovered a bug in the TIGER loading script provided by Postgis 2.1.2. When loading Kansas (state code 20) I get FTP statements like the following: wget ...
1
vote
1answer
33 views

Identifying user triggering ArcGIS Server invalid username or password error

Can anyone tell me if there is a way to identify the culprit of an "Invalid Username or Password" error in ArcGIS Server logs? For source, it just says 'Admin' for source, and nothing for User. Is ...
0
votes
1answer
10 views

GRASS: v.drape, v.split and v.to.db on spearfish sample data

I am new to GRASS and started training on the spearfish sample data set in GRASS 6.4.3. I selected a bicycle tour and transformed it into a polyline. My next goal is to read out the slope and ...
0
votes
1answer
20 views

Setting the Geometry with sql query

I am trying to merge data from a U.S. states shapefile with data on each state. I used this SQL query which is supposed to work: SELECT * FROM child_poverty_by_state UPDATE child_poverty_by_state ...

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