Tagged Questions

2
votes
1answer
65 views

Why does copy convert my Tiff raster value range?

Recently I have worked with some raster dataset. And I found there are different kind of raster dataset. Till now I have worked with grid type raster dataset and my add-in works fine with this type. ...
1
vote
1answer
97 views

How to convert a shapefile polygon to raster in C#

Does anybody know a way to convert a polygon (vector) in a shapefile to raster data WITHOUT using ArcGIS Explorer Desktop? Is there a way to do this 'progmatically' in C# (WPF with ArcGIS runtime ...
0
votes
1answer
58 views

How to get the absolute raster row / column of rastercell when using ArcObject Raster Cursor?

When using the ArcObject RasterCursor (see snippet below), how do I get the absolute row / column of the current pixel value? IRasterCursor rasterCursor = raster.CreateCursorEx(null); do { ...
1
vote
1answer
601 views

How do I add TIFF files to one layer/raster catalog?

We have several TIFF images (already tagged with position information) we want to load as a single layer into the map. It's the first time I dig into this raster/topology thing, but at least I managed ...
2
votes
1answer
145 views

How to change the raster NoData value with ArcObjects?

I am trying to change the a raster's NoData value with ArcObjects and keep coming up short. Here is the code that I thought would work: IRasterDataset _dataset = ...get the dataset... object[] ...
2
votes
1answer
299 views

How to change Datasource of a Raster in sde using ArcObjects?

I'm building a C# application that lets the user change their DataSources of all the layers in their MXD. I have it working on FeatureLayers and LYR files but I'm stuck on how to change Raster layers ...
1
vote
1answer
99 views

ESRI ISurface.GetElevation is extremely slow compared to GlobalMapper

I'm using ISurface.GetElevation on a Raster to get the elevation for a specific lat/lon. I have to do this for a huge set of datapoints. Currently i'm testing with a dataset of 10.000 items which ...
2
votes
1answer
475 views

DTED/GeoTiff layer: Get elevation under mouse pointer

I have a simple desktop app with a map control. The map data that will be available to show will be either DTED files (Military Analyst's catalog / MADTEDLayer), or GeoTiffs (created by gdal). I want ...
1
vote
0answers
108 views

How to get SplineWithBarriers to work in C#

I have been having fits trying to get SplineWithBarriers to work but to no avail. My environment: Windows 7 64 bit Visual Studio 2010 Team Edition ArcMap Release Version 10.0 Product Version: ...
4
votes
2answers
720 views

Translating grid to USGS .dem in C# via GDAL

I am attempting to translate ArcInfo binary grids to USGS DEM format (.dem). I have installed the GDAL .NET bindings thru this build installer. I can get to GDAL in my C# add-in I am working on. ...
2
votes
2answers
647 views

Interpolating heights in DEM using ArcGIS API's in C#

I am new to ArcGIS and not familiar with it. I want to interpolate heights in a DEM file using ArcGIS? Is it possible? Actually, I want to write a C# code that will read the height from DEM file for ...
2
votes
1answer
529 views

GeoTIFF raster layer, c#

We have a map rendering engine (renders from MapInfo Interchange Format). This engine uses Mercator Projection. Now we have to insert a raster layer (orthophotos of a city), we have GeoTIFF files with ...
1
vote
1answer
412 views

How to Save a Raster or Polygon to ArcMap Table of Contents in C#?

Just as the title says, I want to save the Raster to the table of contents. I have a Raster displaying on the ArcMap IDisplay, but I can't figure out how to save it to the Table of Contents in ...
1
vote
2answers
1k views

How can I access a raster dataset's attribute table?

I need to loop through the rows in the raster attribute table and add a date for each row. Thanks,