1
vote
1answer
48 views

Projecting INEGI shapefiles from Mexico

I have two INEGI files from Mexico (1990 and 2010) that I want to use the same projection. The 2010 file works fine (see below) and I would like the 1990 file to match the 2010 one. The shapefiles are ...
0
votes
0answers
13 views

DD83 to State Plane conversion

I am having an elementary issue with a conversion I have completed successfully in the past in ArcMap10. I am trying to convert DD83 to State Plane 83 using Data Management Tools > Feature > Project. ...
3
votes
1answer
253 views

How to Reproject a DWG file?

I've been asked this question by a friend of mine, and from my experience with Autocad (which is rather small), I can't remember if the software supports reprojecting layers from a projection/datum to ...
1
vote
1answer
723 views

How do I display latitude longitude data on a UTM map?

I'm relatively new to GIS, so I may use incorrect terms, but I'll try my best. I'm using ArcView 10. My current coordinate system information is as follows. I believe this is correct, as it is ...
2
votes
2answers
930 views

which is the suitable Geographical Coordinate System and Projected Coordinate System for India

I want to create a spatial data for entire India, usually I use WGS84 as GCS and UTM zones for PCS in the places in India, but when I have to create the spatial data for entire India, I get confuse ...
1
vote
1answer
116 views

Issue with Buffer with projection

I am having an issue with buffer. My data is in Geographic coordinate system. I am trying to do a buffer of 600m and i am finding different results for each case, have tried thse so far: Map in web ...
1
vote
1answer
354 views

How do you convert from GPS data in WGS84 to a GIS built in NAD27 in ArcGIS?

I have GPS data that has been recorded in Datum WGS84. The client has a GIS built in Datum NAD27. Having looked into the conversions online I would like to know how to do this rigorously with ...
0
votes
0answers
97 views

Alignment Issue with using NAD27 data within ArcGIS Server 10

I am using ArcGIS online base map in my web application. I am trying to add some layers with Geogrphic - NAD27 projection. I am using NAD_1927_To_WGS_1984_33 for transformation, based on documentation ...
5
votes
1answer
177 views

How much error in a transformation?

I've been working in GIS for about a year and have a functional grasp of Projections and Transformations from within ArcGIS (10.0). Geosoft Oasis is another program we use. In working with our data ...
1
vote
3answers
165 views

Copy>Paste from meter to feet coord-sys, and coordinates don't change in ArcMap 10

My dataframe coordinate system is in UTM with linear unit Meter. If I have a Polygon shapefile in a UTM coordinate system with a linear unit of Foot_US and I am sent a shapefile in the same UTM ...
4
votes
3answers
145 views

How to transform FileGDB featureclasses from custom local coordinate system?

Background: Started working for company that is in middle of system-wide IT upgrade including GIS data. Existing in-house data is in a FileGDB, is in an assumed coordinate system and represents 1000 ...
2
votes
1answer
80 views

Ok to measure and union a projected-on-the-fly shapefile in ArcMap?

I have a dataframe in arcMap 10.0.4 that is of Africa Albers Equal Area Conic PCS. I bring in a census shapefile of WGS 1984 CS and it is projected on the fly. I do 2 things: I use the calculate ...
1
vote
3answers
3k views

Geographic Coordinate System to Projected Coordinate System

I am trying to convert a shapefile from GCS to PCS to calculate the area of each polygon. I have tried two different methods: 1) "Data Management Tools->Projections and Transformations->Define ...
1
vote
1answer
167 views

Raster on-the-fly projection in ArcGIS has different resolutions

I have a map document authored in ArcMap. The spatial reference for each of the raster layers is Alaska State Plane. If I set the Data Frame projection to Web Mercator (Auxiliary Sphere), then my ...
1
vote
0answers
58 views

How to Convert Long/Lat from Excel into shapefile? [duplicate]

Possible Duplicate: How can I convert an excel file with x, y columns to a shapefile? Possible duplicate, How can I convert an excel file with x, y columns to a shapefile? How do I ...
1
vote
2answers
11k views

How to convert coordinates from meters to decimal degrees?

I have a shape file. The coordinates (Lat/Long) are projected as meter (555000, 155000). But, I want to re-project it to decimal degrees(51.523666, -0.07467). How can I do it with ArcMap or Quantum ...
20
votes
4answers
14k views

Layers with same coordinate system should align/overlap but do not?

I put 4 different layers into my ArcMap document, but only one of them will show up on the map! I should be seeing the other 3 layers as well. When I do a Zoom to layer, I can see one layer, but I ...
4
votes
2answers
366 views

How to efficiently project datasets of varying coordinate systems into one coordinate system?

I am working on streamlining data processing at my organization. Currently we are using various large-scale Models that we will gradually bring into Python. The gist of our data processing is as ...
2
votes
1answer
292 views

Reproject TM65 to OSGB in ArcGIS

I have a TIFF file in the TM65 (Transverse Mercator) projection, and want to convert it to the OSGB (British National Grid) projection. I'm trying to do this in ArcGIS using the Project Raster tool. ...
1
vote
2answers
820 views

Problem reprojecting annotation in ArcGIS 10

I have a large annotation feature class that I want to reproject from decimal degrees to a specific iteration of Albers. Using the Project tool, it appears to work, all annotation features are ...
0
votes
4answers
495 views

How to unproject a shapefile in Python?

I have one shapefile with XY coordinates in meters. Now, I want to develop one script in Python which converts meters to decimal degrees. Please help me to develop this. Thanks
2
votes
4answers
8k views

I'm having trouble with getting a shapefile in the right projection. What am I doing wrong?

I have an older map that I didn't create. I'm just trying to get everything to line up on it, and having a hard time. The data frame is in NAD_1927_UTM_Zone_12N, as are the point shapefiles (derived ...
9
votes
6answers
5k views

ArcGIS/ArcPy Python, how to get latitude and longitude of a projected point?

I have a point feature in a feature class that is being accessed by ArcPy. The point is projected but I need to find an efficient means to get the unprojected latitude and longitude for this point. ...
5
votes
2answers
812 views

How to set a map's extent to the envelope in miles

I want to set extent of the map into envelope which sizes are defined by user in miles(kilometers, whatever human readable unit). How to make it? I wrote the following code: static void ...