All Questions
874 questions
2
votes
3
answers
9k
views
Help displaying jpg in OpenLayers?
I am trying to overlay a jpg image over an OpenLayers map. I have been to the example on their site and looked all over for a solution with no luck. So I am guessing that their are rules for setting ...
- 77
1
vote
1
answer
507
views
ERDAS Imagine batch wizard edit replacement pattern help
I'm using ERDAS Imagine to batch produce NDVIs from NAIP imagery. I need to also replace the default file name (e.g. "m_3610132_nw_14_1_20100503") with a user friendly file name (e.g. 3610132nw). ...
- 21
3
votes
0
answers
474
views
How to read pixel values from an image server layer with ArcObjects?
I'm having a problem with reading pixel values from the image server layer. The image server layer class implements IRasterLayer, so when I tried to read pixel values using IRaster2 obtained through ...
- 31
10
votes
5
answers
12k
views
How to workaround large mosaic process which is failing?
I need to mosaic about 550Gb of tif imagery together and the software I have tried keeps failing. The area has been split into zones so that the smallest has approx 200 tiles.
I have used the latest ...
- 8,298
1
vote
2
answers
3k
views
How to add pictures to OpenLayers map using GeoServer?
I have web map showing land parcel and buildings.I am using GeoServer WMS and OpenLayers.
My buildings are showing as point on map. Then I want to add some images to those points to show when ...
- 433
1
vote
1
answer
5k
views
How to display pop up image when click point in OpenLayers web map
I have basic WMS web map showing parcels and points layers which representing buildings of parcel. Then I want to add building images for each and every point. Then when a user clicks on a point image ...
- 433
4
votes
3
answers
2k
views
How to add a raster legend with min/max values in QGIS 1.6?
I calculated/made NDVI with landsat data using ERDAS. Results of NDVI is in black and white map but I need it in colour to present the scale for NDVI with value of pixels in Map Composition. How to ...
- 299
1
vote
1
answer
3k
views
Overlay the big map image with Google Maps API
I put the image on my website with overlay option in Google Maps API. But the map image which is overlayed is too big: 2.85 MB.
I can't resize it, so I wonder is there an option to put it somewhere on ...
- 5,054
0
votes
2
answers
149
views
Need Image with Sweref99_1800 projection/coordinate system
I need third party image tiles (probably world imagery) under sweref99_1800 projection and coordinate system (EPSG 3008). I found this link http://www.naturalearthdata.com/downloads/10m-raster-data/...
- 1,437
2
votes
1
answer
338
views
ERDAS 2011 and OpenOffice
Is it possible to connect ERDAS 2011 with tools of OpenOffice instead of Office tools? I need to send a map composition made in ERDAS to Presentation of OpenOffice. I don't have Word or Power Point ...
- 299
5
votes
2
answers
12k
views
Replacing Raster Values in Ras1 with Ras2
I have two rasters Ras1 and Ras2.
I want to change the Ras1.
In Ras1, there are few areas, lines, points I am interested having nodata cells and wrong data cells.(limited to interested areas only ...
- 812
5
votes
1
answer
1k
views
Setting "REAL" work/scratch workspace in ESRI/ERDAS etc
I thought the issue was only in ARCGIS but it seems that ERDAS does the same thing. I have my C with 1.7TB and my D with 10TB and my scratch set to d:\scratch but still ERDAS (and ESRI) fills my ...
- 8,298
7
votes
5
answers
3k
views
Georeferencing aerial photos when only centroid is known using ArcGIS for Desktop or ERDAS Imagine?
I have heaps of aerial photos that need to be georeferenced.
I have access to ArcMap and ERDAS.
All I am given is an excel sheet with the centroid coordinates of each image.
Each photo covers ...
- 133
0
votes
1
answer
561
views
NDVI image value
In order to get monthly NDVI image with max value from two 16 day-images, I used mosaick tool in ERDAS8.7 by choosing max function from "set overlap function" tool. But after doing this, when I see ...
- 169
3
votes
3
answers
3k
views
NDVI image value changes from -1 to 1 in ENVI to 0-255 in ArcGIS Desktop and ERDAS Imagine?
When i open NDVI image in ENVI, its value is still within the range (-1 to 1).
But when I open this NDVI image in ERDAS and ArcGIS Desktop, its value is 0-255.
What does it mean?
Is the NDVI ...
- 31
3
votes
5
answers
5k
views
Batch process to get single band image from stacked image using ArcGIS, ERDAS or ENVI?
Can you help me to extract a single band image from stacked multiband image. Totally, 260 image has been stacked. When I do to this, it will take a long time. So I'd like to know there is any batch ...
- 169
4
votes
3
answers
8k
views
How to create animation from raster data?
I have some NDVI and precipitation/temperature images at the monthly time step from Jan, 2005 to Dec, 2008.
I need to create animation image to show the temporal change.
How can I do this?
Is it ...
- 579
1
vote
3
answers
877
views
Extraction of monthly image from two-16 day images?
I need to combine two-16 day NDVI image into monthly NDVI image.
To do this, what kind of function and formula are used in ENVI, ArcGIS Desktop or ERDAS?
- 579
4
votes
2
answers
4k
views
Calculating Net Primary Production (NPP)?
When I calculate Net primary production (NPP) for a local scale, what kind of software should I use?
I always use ENVI, ERDAS IMAGINE, ArcGIS for Desktop and IDRISI.
Is it possible to use these ...
- 579
2
votes
1
answer
723
views
Importing ERDAS-processed GTOP030 dem data into ArcGIS Desktop?
I have two GTOP030 DEM images. After downloading them, I have imported into ERDAS and mosaiced them. Then I have exported it to .tif file in order to open it in ARCGIS. But when I tried to open it in ...
- 579
7
votes
2
answers
3k
views
Creating shapefile of satellite image footprints?
I'm looking for a tool or a workflow to compute satellite image footprints, for a large number of images across directories, and produce a shapefile. Ideal work flow would be:
fire up tool
point to a ...
- 1,543
4
votes
1
answer
681
views
Embedding Images in map layouts and documents (*.mxd)?
I wanted to place some images in my map layout but I found that images are not embedded in the MXD files so now, after I deleted them, I've lost the graphics and have to do them again.
Is here any ...
user2293
2
votes
1
answer
192
views
crust index in Erdas Imagine
hey people, i have the trouble with CI index in Erdas, when i am useing the image from landsat 5 tm with atmospheric correction it gives me the whole white picture in the results,
the formula CI=1-((...
- 21
11
votes
3
answers
4k
views
Rendering images in OpenLayers?
My organization has a web application for displaying global and regional climate data and we're considering improvements to it. Our leading idea is to create an OpenLayers-based application to ...
- 119