Latest Contributions by PrasantaBhattarai

Hello! Just came through this old post. Hope this workflow would helpful to others in some way. 1. Convert multipatch to points using Feature Vertices to Points (ArcInfo/Advance license required). (Output point features will have Z values stored in their geometry). 2. Edit/remove unwanted points so that just the roof points are left. 3. Create TIN out of these roof points and use Shape.Z as Height Field. Regards, Prasanta. ... View more

2) While in my original shapefile I have 253 countries, when I do the zonal statistics I am left with 183 coutnries. Any explanation about why this is happening? ! Hello, This probably is happening as the processing cell size is not small enough to cover each polygons (Countries). Please see this from the help documentation: If the zone input is a feature dataset with relatively small features, keep in mind that the resolution of the information needs to be appropriate relative to the resolution of the value raster. If the areas of single features are similar to or smaller than the area of single cells in the value raster, in the feature-to-raster conversion some of these zones may not be represented. To demonstrate this, try converting the feature dataset to a raster with the appropriate feature-to-raster conversion tool and specify the resolution to be that of the Value raster. The result from this conversion will give an indication about what the default output of the zonal operation will be. If you have fewer results in the output than you may have expected, you need to determine an appropriate raster resolution that will represent the detail of your feature input, and use this resolution as the Cell Size of the Raster Analysis Settings of the Environment. Regards, Prasanta. ... View more

Hi, I am not sure if you have already figured it out. Here is an expression you can try in raster calculator: Con("Depth to Water Table" <= 0,0,"Depth to Water Table") or, Con("Depth to Water Table" >= 0,"Depth to Water Table",0) Hope this helps! Regards, Prasanta. ... View more

Hi, You should be able to do this by changing the stretch type to Minimum-Maximum and edit the High/Low values to be the same for both the rasters. You can select the minimum to be the minimum of the two and maximum value to be maximum of the two rasters and use same color ramp for both. See attached screen capture on how you can edit these values. [ATTACH=CONFIG]18665[/ATTACH]    [ATTACH=CONFIG]18666[/ATTACH] Hope this helps. Regards, Prasanta. ... View more

Thank you all for providing information about your hardware. This issue seems to be affecting only the ATI graphics cards. We have now been able to recreate this issue in Support using an ATI graphics card, and have logged a defect for this behavior in ArcScene 10.1. The reference number and subject line for this bug are as follows: [#NIM085208  In machines with ATI Graphic Cards,  ArcScene freezes or takes very long to display a TIN surface as face elevation with graduated color ramp.] This bug is now being looked at by our development team, and they will take further action as necessary to address this issues as soon as possible. We apologize on any inconvenience that this issue might cause on your work flow and thank you again for bringing this issue to our attention. Regards, Prasanta. ... View more

Hi Jorn, Could you please share info on which graphics card, driver date  and version you have for your machine? One of my user who is having this issue has Radeon HD 7690 MXT Driver date: 11/28/2011 and Driver Version: 8.882.2 4000. With his TINs, we tested this behavior on my machine (with NVIDIA Quadro FX 4600) and was not able to reproduce the issue. I am trying to gather as much information as I can to narrow down this issue and see if this is specific to certain hardware. Regards, Prasanta. ... View more

When i import certain geotiffs into arcmap 10 the images are projecting the wrong way, with half mirroring from the left extent and half mirroring from the right extent. so C is in the correct place but B is to the east rather than the west where it should be [ATTACH=CONFIG]15837[/ATTACH] can anyone help me find out the cause of this and a way to fix it Thanks Hi, What service pack are you on? First thing that I would do is apply the latest service pack as there were some georeferencing issues reported for TIFF images with release of ArcGIS 10, which are resolved with the service packs.  I hope the service pack helps. Regards, Prasanta. ... View more

Hi, I think both the issues could be solved by creating a .lyr file and add that to ArcGIS Explorer. Part I: - Add your raster/image service into ArcMap. - Change Layer Properties > Symbology > Stretch type > NONE - Right click the layer and save it a layer (.lyr) file - Add this .lyr file into ArcGIS Explorer. Part II: - Add the multipatch to ArcGlobe - Display it as floating layer and make sure it displays on Globe surface. - Save the multipatch as a layer (.lyr) file. - Add this .lyr file into ArcGIS Explorer. ++++ I have tested Part II and it seems to be working and I am pretty sure Part I should also work. Let us know how it goes!! ... View more

When I create a Profile Graph in ArcMap using the 3D Analyst tool, I am given a graph with elevation on the Y axis, and 4 options for units on the X axis.  I want the x-axis to have units of distance. I am in GCS_North_American_1983.  I am given the following options in the Graph Properties box: X field (optional): <None>, FID, M, or Z. Ultimately I would like to choose between feet or meters on both axes.  Any ideas? Hi, I would suggest using a projected coordinate system for your map/data. If in GCS_North_American_1983, set your dataframe to be in a projected coordinate system (NAD_1983_UTM_Zone_ for example). Your graph should then have X-axis of your graph in meters. Hope this helps!! ... View more

Hi Steve, There might be different ways of doing it. Here's what I  I can think of. 1. Convert your line to points using feature vertices to points (requires ArcInfo). Densify the vertices on the line feature if you need more points. 2. Add XY Coordinates (requires ArcInfo) or calculate geometry from attribute table to get X and Y coordinate of the point feature. 3. Once you have the point features with X, and Y coordinate, you can use extract multi values to point (ArcGIS 10) to get information from multiple raster into the point feature. 4. You can then export the table. ... View more

I applied "weighted sum" tool to overlay three rasters, the resulting raster, however, does not have an attribute table with values and counts of each type of pixel. When I right-clicked the raster, the "open attribute table" option is gray, but the values are calculated after using weighted sum. How can I add the values to the attribute table? I tried with Build Raster Attribute Table, but there always was an error saying the raster should be one band. In fact, the raster is one band. I am quite confused. Anybody can help? Thank you Greetings, The output from the weighted sum tool is always a floating point raster. For you to be able to build attribute raster attribute table, the input raster should be a single band "Integer" raster. You can convert your weighted sum raster to an integer raster by running INTtool. Regards, Prasanta. ... View more