0
votes
0answers
2 views
How can scale/reduce my polygon without chaning the central lat & long?
I am writing a VBA code to resize my polygon, I get a input as vector points(Shape file). The code below resizes it as according to my scale factor but my central latitude and longitude are also ...
2
votes
1answer
30 views
How to set up Python 2.7 to work in both QGIS and ArcGIS?
I have both ArcGIS 10.1 and QGIS 1.8 installed and both include Python 2.7 in slightly different setups and in different folders (c:\Python27\ArcGIS10.1\ and c:\Program Files (x86)\Quantum GIS ...
2
votes
1answer
12 views
Which geodatabase type is most appropriate for both open source and ESRI use?
Main Question: Is there a geodatabase type that seamlessly works with both ESRI and open source products?
Details: My company currently passes around geodata in various vector and raster file ...
1
vote
1answer
48 views
How to represent two fields of the same states or district layer using different color borders and fills in QGIS?
If I had a set of data in QGIS that was gradually shading a state or district the exact way I wanted -- but I also need to portray more information about that state or district with additional colors, ...
0
votes
1answer
27 views
How to show Label of a new feature Layer in Openlayers…?
I have created a dynamic new feature layer along with a marker using openlayers with popups, but, I want to show labels for each new feature created...
Below is the code I used...
//To add new ...
0
votes
0answers
8 views
Geoserver shutdown after load big imagemosaic
catalina.log:
24.05.2013 15:33:38 org.apache.tomcat.util.net.JIoEndpoint processSocket
SEVERE: Error allocating socket processor
java.lang.OutOfMemoryError: unable to create new native thread
...
0
votes
1answer
53 views
Selecting a Polygon based on the location of a point
Currently I have a polygon layer made up of three shapes. All the shapes are listed in the attribute table. One of these three shapes intersects a point. I would like to select just the shape that has ...
-1
votes
0answers
9 views
Selecting a polygon and zooming knowing the Polygon ID [duplicate]
By clicking on a polygon, i can get the polygon id by doing this:
identifyParams.geometry = evt.mapPoint;
identifyParams.mapExtent = map.extent;
identifyTask.execute(identifyParams, function(result) ...
1
vote
0answers
14 views
Problem using grid with a vector layer
I need to establish a model of maritime pollution and I try to use the grid option to work on ocean sectors. I tried to use my grid on a vector file, .shp, with points. Each point is a maritime ...
0
votes
2answers
17 views
PostGIS, distance between two users
I have a simple table (location_test) with three column (name, geom , jid). geom is a geometry column with SRID 27700. I set the user's geometry position with:
UPDATE location_test SET geom = ...
3
votes
1answer
351 views
Is there an comparison of the various mapping libraries for Android?
I am currently looking at the various libraries that I can use to show a map in my custom Android App. I have found several like Mapsforge, OSMDroid, ArcGIS runtime for Android, Google Maps for ...
7
votes
2answers
258 views
Transform bookmarks to data driven pages in ArcGIS?
We have this large project in ArcGIS with 30 maps with different extents using Bookmarks to pan between these maps/pages.
Now we would like to use Data driven pages instead. The question is, is it ...
2
votes
1answer
39 views
ArcExplorer - possible connect to a non-SDE database?
In ArcExplorer, I'm wondering if you can connect to a non-SDE database, like SQL Server, with geometry or geography columns?
0
votes
2answers
21 views
Zooming into a particular polygon
I am getting the polygon id by doing
identifyParams.geometry = evt.mapPoint;
identifyParams.mapExtent = map.extent;
identifyTask.execute(identifyParams, function(result) {
var i;
var ...
1
vote
2answers
28 views
“GIS” Mapping on Monument - Scaling
I have a Baroque tombstone for which I have to map the damage phenoma. Normally one can use a vector drawing programm but one has always two boundaries between the different polygons. Questions:
Is it ...
1
vote
0answers
38 views
Copying Features from One ArcMap window to another, without losing Related Tables
In our current workflow we are working in a Personal Geodatabase with few features and related tables , many persons will be working in different schemes.
When we need to merge these schemes\Pgdb to ...
1
vote
2answers
101 views
Using the ArcGIS Runtime SDK for C# is there a method to Hit Test for a polygon on the graphics layer?
I am very new to using ArcGIS runtime SDK for C#.
I have loaded a polygon from a shapefile.
I wish to query if a lat/long point is inside or outside the polygon?
How can I do this?
Thanks in ...
1
vote
0answers
56 views
Is ArcFM or ArcMap leaking memory when switching between page templates?
Can anyone else reproduce the memory leak described below? Any insight into what may be causing the leak is appreciated.
I have custom code that swaps between landscape and portrait templates and ...
2
votes
0answers
9 views
How to trace SQL queries sent by ArcGIS Server (ArcSDE) to Oracle database?
I'd like to generate a log file containing all SQL queries sent by ArcGIS Server (ArcSDE) to Oracle database.
Is there a way to do so?
I'm using Oracle 11g and ArcGIS Server 10.0 on Windows. ArcSDE is ...
2
votes
0answers
60 views
Point file to raster
I have a point file of trees in my study area, which includes the attributes of each tree. Each tree also has a crown radius associated with it. I need to summarize the attributes of these points ...
1
vote
2answers
55 views
Lambert projection with one or two standard parallels and proj4
I'm sure there is a gap in my understanding, but I haven't been able to identify where it is, nor how to fill it. My issue is this:
I'm transforming lon lat coordinates into a lambert conformal ...
0
votes
1answer
15 views
How to iterate all input folders (containing coverages) using Python with ArcGIS 9.3?
I'm trying to write python scripts to batch convert thousands of coverages to shapefiles in arcgis 9.3. The coverages files are in different folders:
d:/area_A/building
d:/area_B/building
...
0
votes
1answer
53 views
raster2pgsql missing in Opengeo-suite installation
I installed opengeo-suite 3.0.2 on Ubuntu 12.04 and although the stack seems to be working fine, raster2pgsql is no where to be seen!
root@mywebsite:/usr/local/lib/postgresql/9.2# locate raster2pgsql
...
0
votes
0answers
10 views
Pyscripter hangs on spatial join?
I've got a script which loops through a series of FC layers (tracker points). Using a FOR loop, they're reprojected then joined to a streets layer.
Sometimes it works fine, then other times it never ...
1
vote
1answer
13 views
OpenGeo Suite start up failure
I started the openGeo Suite 3.0.1 in Windows 8 and after a while I get this error:
Giving up on starting the Suite as it is taking longer than expected
Any idea?
0
votes
0answers
15 views
How to snap Vector Layer projection to Raster layer projection in QGIS?
I have raster in correct projection. I used ShapeFiles, and marked objects(manually), but i found out that my vector layers have different projection, so they have different size and position. Is ...
1
vote
2answers
58 views
Where can I go to have a rant about Open GEO Data?
Which is the most popular GIS forum or website that's not under the control of our corporate or government overlords?
This place is great for questions and answers, but if I want to have a discussion ...
0
votes
1answer
15 views
How to estimate distance from points to line feature with v.distance?
I'm trying to use the v.distance module in GRASS 6.4.3 to estimate the distance from a series of point features (animal tracking locations) to the nearest point along a line feature (a coastline). I ...
1
vote
2answers
51 views
How to convert a txt file to shp?
I've got a txt/csv file with the utm coordinates and the hights. Now I want to upload this into qgis. This is not a problem so far. The problem is to create a shapefile out of the data with an ...
1
vote
1answer
28 views
How to select points within a polygon from another layer?
I'm using QGIS 1.8 with a PostGIS database and I have three postgis-layer in qgis a lines layer, a points layer and a polygon layer.
What I'm trying to do is to select a polygon in the polygon layer ...
1
vote
2answers
26 views
Getting started with gdal/ogr
I found some batch code using ogr2ogr in order to convert and reproject vector layers. The difficulty for me is to know what to install and which gdal commandline should I use, and how to configure ...
1
vote
0answers
42 views
How to add a column to table with sdelayer command?
I am working with an oracle11g database and I would like to add a new column to a feature class stored in this database. I would like to use the sdelayer command but can any one of you give me a tip ...
3
votes
0answers
53 views
ArcObjects running in Addin slower?
I have created a class library which does some geoprocessing. The addin calls a class that is an async process. I have ensured the thread is STA and the arcobjects are thread safe (ie. not passed from ...
0
votes
0answers
41 views
Where to find Data with site that have hazardous, toxic or radioactive substances?
Does anybody know where to find data that lists the location of sites that have hazardous, toxic or radioactive substances?
I'm working on a HUD project and need to be able to find out if sites for ...
4
votes
1answer
443 views
Can you use active layer as input for dynamic text?
I'm wondering if you can lift the name of a layer in the ToC (within a group) and use it in dynamic text. Is there existing syntax to do this?
eg.
Using ArcMap 10 sp3. Thanks in advance,
Matt
6
votes
2answers
81 views
Recommended driverless GPS loggers?
There are a bunch GPS loggers out there, but a good portion need software to download the data onto a computer. Some of the software is Windows-only, but others are Mac-compatible (what I need). ...
1
vote
1answer
14 views
Probleme with WFS protocol in OpenLayers
Sorry for disturbing. I know my problem look common, but I really don't know what to make.
Here is my code for getting a WMS layer in OpenLayers from Geoserver.
var wfs2 = new ...
0
votes
0answers
20 views
How to access the USGS Small Scale Shaded Relief from a client application?
I am writing a Java client application that needs to make use of USGS Small Scale Shaded Relief images served as tiles.
The supported interfaces are REST SOAP WMS as described at the bottom of that ...
0
votes
0answers
24 views
Fill up polygons with field value
I have now defined my renderer with a color map
I want to fill it with a value in the end field of my shape file's attribute table with python
how to do it??
I use QGIS 1.8.0 with python 2.7.3
1
vote
1answer
16 views
Pseudo Mercator error?
I'm mapping on QGIS, I have a vector layer and his CRS is on EPSG:4326 - WGS 84, but also I wanted to put a satellite image, so when I do it, the image use WGS 84 / Pseudo Mercator.
The problem is, ...
2
votes
2answers
67 views
Calculate distance of point along a line using NetTopologySuite
I am looking to calculate the distance along a line of a point using NetTopologySuite.
Indications are that the distanceOp may have something to do with it, given that I can a point on a line closest ...
1
vote
2answers
33 views
Apply styles to WMS layer
I am working with OpenLayers (and GeoServer) and I am showing a WMS layer with countries in a map.
Each object (country) in the layer has an attribute called NAME (the name of the country).
I created ...
3
votes
2answers
26 views
How to know what spectrum image layers are in eCognition?
I'm learning to use eCognition (8.1) and my teacher has provided me with some example tif files to segment and classify. The tif files have multiple layers, each of which are supposed to represent a ...
1
vote
0answers
16 views
Applying proper correction from True to Grid
I have a very basic question that will seem very elementary to most who observe this website. The reason I ask is because I have been told to difference answers and I'm now a little confused. So, here ...
0
votes
1answer
53 views
ArcCatalog 10.1 tree doesn't refresh after adding new custom IGxObject at runtime
I am using ArcObjects 10.1 (.NET) to customize ArcCatalog: adding new nodes in catalog tree like in the Esri's example. But when I add new child node to already expanded parent, it doesn't show up in ...
10
votes
1answer
552 views
How do I get the pixel value of a GDAL raster under an OGR point without NumPy?
I am working on a computational model of the abundance of wild pollinators across a landscape. The model itself is complete, and I am now struggling with a post-processing step.
I have my GDAL ...
1
vote
1answer
26 views
Python - GDAL: spatial filter
Is there a way with GDAL (Python) to set a spatial filter (bounding-box) on a raster before I process it? I want to read it as an array.
BandReadAsArray(band, xoff=0, yoff=0, win_xsize=None, ...
6
votes
3answers
522 views
How to sum up pixel values in QGIS?
I need to know the value of the sum of all pixels in a raster. However, in the Statistics section of the Metadata tab in Properties, under Sum of All Cells it always indicates 0.00. I have tried with ...
0
votes
1answer
87 views
Why do ArcGIS Area Calculations not match Official Statistics?
I am trying to calculate area of polygons using a shapefile from the world bank where countries are defined.
When however I am trying to calcuate the area, the numbers that emerge are different from ...
0
votes
0answers
69 views
How can I get shape filename in attribute field using field calculator with VBA?
I want to store ths shapefile name in an attribute field using the field calculator and visual, but can't find the way to do it.
Can anyone help me, please?
Thanks!!!
