A map projection is any method of representing the surface of a sphere or other three-dimensional body on a plane

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Projection and transformation [on hold]

How do I project GCS_WGS_1984 to Nepal_Nagarkot_TM? In the process of transformation if gives invalid transformation. What can be the solution?
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21 views

ArcGIS: Projection of State Plane Data to a Web Service?

This maybe a naive question but I can't help any online help so far. So we have some data in Shape files. The data is in NAD_1983_StatePlane_South_Carolina_FIPS_3900_Feet WKID: 102733 Authority: ...
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1answer
28 views

What is/are the coordinate systems used in South Africa?

What are the principal datums and projections used in South Africa including the names of geodetic datums and their projections?
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1answer
24 views

Projected MODIS data not aligning with ESRI basemap in ArcGIS for Desktop?

I can not get 1km MODIS data aligned with ESRI basemaps in ArcGIS 10.2.2 for Desktop. See the photo below. I reprojected MODIS17A3 data using the MRT (MODIS reprojection tool). I selected WGS84 ...
4
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2answers
61 views

Proper ground-to-grid correction and projection from old survey maps

I asked this question over on the ESRI geonet site, but haven't had any luck there, sorry for the duplication... I'm working on digitizing a group of maps from the 1950's that show locations of ...
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13 views

Vector data getting misaligned in final print in QGIS [duplicate]

My printcomposer view shows the data correctly aligned with background OSM/Google/Bing data but the final print makes it all misaligned. Data is in 3857 What can I do? THIS is an URGENT volunteer ...
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1answer
28 views

GeoJSON and OSM layers with different projection

I have a GeoJSON from NaturalEarth for world state boundaries and I want to display it with only without backgroung. But also, I want to add a OSM layer as another baselayer option. The code I am ...
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0answers
23 views

Projections way off on data imported into QGIS?

I have elevation data as a .shp from the USDA ARS and Hi-Res Orthoimages (Mystery Projection (UTM 15N?)) from the USGS website as geoTIFFs (plain NAD 83). I am trying to project all of the images ...
3
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64 views

Which projection can I use to see alignments on great circles?

I want to put on a QGIS map some historical sites to check if they are aligned. If an alignement exists, the points should stay on a great circle (is this correct?). I want to visually verify this ...
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14 views

Generating Scale Bar for Raster Image Data

My goal is to create a scale bar for a printed map at 1:1,000,000 scale. The input dataset is a Mercator projected geotiff. Using GDAL it is possible to get the spatial reference information and ...
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0answers
16 views

Why can I publish a layer in Geoserver using these two different projections?

I have a shapefile with this projection in the .prj file GEOGCS["GCS_WGS_1984", DATUM["D_WGS_1984", SPHEROID["WGS_1984",6378137.0,298.257223563]], PRIMEM["Greenwich",0.0], ...
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0answers
22 views

Troubles setting correct projection in SDE

I have to transformate data and change the coordinate system but have troubles to set it correct programmatically. I have: ArcGIS 10.2 / MS SQL-Server 10.0.5520 / sde 10.2.2 My steps: 1) Some ...
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1answer
35 views

What simple and light Java library to use for WGS84 to UTM conversion?

Geotools and Geotoolkit are huge and complicated. CTS (1.3.3 from Maven) failed on me by not even being able to run its own test example (slightly modified ...
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1answer
22 views

Get Radius in epsg 4326 with Openlayers 3

What is the best method for getting the radius of a circle in Openlayers 3 in epsg 4326 (geodesic)? I'm using this example for a base and trying to draw a circle while getting the radius, but using ...
2
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2answers
15 views

Selecting the correct projection for NAD_1983_HARN_WISCRS_Bayfield_County_Feet

I am trying to map the following projection but having issues finding a one that works. I ahve used http://prj2epsg.org/search which gives a few results but none seem to work that well. ...
0
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1answer
45 views

What would a map of the world look like if lat/longs were treated as projected coordinates? [duplicate]

I'm not quite sure if I'm phrasing this right. It's just occurred to me that lat/longs are two dimensional coordinates like any other projected coordinate system, so it's presumably possible to create ...
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24 views

Equal Area Projection for Indonesia - Standard Parallels

I am trying to do area computation stuff over whole of Indonesia and as such, am using the following projection: http://spatialreference.org/ref/esri/asia-south-albers-equal-area-conic/ To make this ...
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1answer
57 views

What projection to use for many parts of the world

I'm creating a poster which has many separate maps (rivers of the world). I'd like to use a similar projection for each of them, so they're comparable. I guess I want some parameterized projection, ...
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1answer
50 views

Reproject GEOTIFF tiles from UTM to Plate Caree

I need to reproject several GEOTIFF tiles(each having different height/width) in six different UTM zones from UTM to Plate Carree. Output of gdalinfo of two sample tiles is enclosed. As is clearly ...
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1answer
32 views

projection for high accuracy small areas

I need to convert (lat,long,height)points into a cartesian system for an area as small as 40kmx40km or even 10kmx10km. I'm currently using the UTM projection, but there are some issues regarding ...
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1answer
41 views

arcgis 10.2 .shp with no projection info but .xml file

I need help opening a shp file which has no projection info in ArcGIS 10.2 I have .shp , .shx , dbf and .xml file. The .xml file details are below . QUESTION : can i make .proj from below ...
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2answers
39 views

Error when creating data with special characters and numbers [duplicate]

My code will not project and store the feature layer in the scratch.gdb. "ERROR 999999 ... The table name is invalid. The table was not found. [17_5330_51961Lake]" The interpreter doesn't like "-" ...
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44 views

How to compare the distance given by the GPS (WGS84) with a ground truth given by projection matrix?

I would like to compare the result given by a GPS (WGS84) to a ground truth with only the projection matrix given (So rotation matrix 3x3 and translation vector 3x1). Actually I have a car moving in ...
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22 views

Proper projection name for NAD83 2011 revision

I have two PRJ files, one from ESRI and another from some custom GDAL/OGR code I wrote (pasted below). I was trying to have both work in NAD83 UTM10N with the 2011 revision. The ESRI file has 2011 in ...
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1answer
184 views

Converting Long/Lat into X/Y in the same coordinate system

I have a text file with two fields including Longitude and Latitude in degrees. I need to convert this into two fields that contain these values in X and Y. The source and destination coordinate ...
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0answers
24 views

Are there standard math formulas for esoteric map projections (like Dymaxiom)?

I come from graphics programming, I have been mucking about making map apps with more interests in map projections. I have a simple 2D tile map, but I'd like to convert that to some of the more ...
3
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2answers
114 views

Is WGS84 a Coordinate system or projection system? [duplicate]

WGS84 is often referred to as a "projection system" and sometimes it is confusing to me about what a "projection system" is and where WGS84 falls in one. Could someone please clear that up for me?
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11 views

Set of intersection points in trilateration / multilateration [duplicate]

Like in this post I will get a set of points (3 or more) with latitude, longitude and distance (in KM) information to find out the target location. A distance could be about 500 KM. The circles ...
1
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1answer
31 views

Good projections for Middle East and North Africa in D3?

I'm a data visualizer who's mostly worked with US data, and I'm familiar with AlbersUSA project. However, I'm going to be doing a series of graphics on the Middle East. Any suggestions or interesting ...
0
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1answer
34 views

Google Earth image projection transformation question

I have taken a JPEG image snapshot of an area on google earth. Within it I marked and record the coordinates of the four corners. I then added and georeferenced the image to a map I was already ...
0
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1answer
36 views

Open Source Webmaps and Geotiffs

I have recently started to learn how to use open source web maps, and have come across the following issue. When using geoserver and geo explorer (part of the open-geo-suite), I seem to get an ...
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37 views

Importing spatially referenced geotiff from MicroStation V8i into ArcGIS

I can't figure out how to properly import a geo-referenced raster into ArcGIS from MicroStation. Both the design file and the Arc data frame are in the same projected coordinate system, which is ...
0
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1answer
28 views

Growing error from west to east when overlaying raster and shape

I am using a shape of Austria from gadm.org which I want to overlay with a netCDF file in R. As the netCDF has projected coordinates in EPSG:31287, I have reprojected the shape using FWtools and the ...
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1answer
42 views

Raster appears like polygon in Arcmap

I copied rasters across into my geodatabase for a client but when they open the raster dataset in ArcMap they appear in tiles as shown in the image below. When I drag and drop individual rasters over ...
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1answer
42 views

Equidistant Cartesian projection for NYC

I'm working on a project in which I cluster locations in New York City based on their distance. My dataset contains latitude and longitude and thus I'd like to project it to a 2D Cartesian space in ...
2
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1answer
83 views

How to modify or create a wider UTM zone?

am working on a project to do country-wide mapping using projected coordinate system such UTM. However, the country (Zambia) is covered by three UTM zones, namely zone 34,35 and 36.I have read ...
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0answers
32 views

Finding gps projection of 3d photo?

I have an aerial photo from Paris and I would like to plot gps paths and 3d surfaces on top of it (using R, python, etc). . The problem I have is converting my gps coordinates to 2d coordinates on ...
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13 views

Escaping the MODIS Swath Projection with GDAL: MOD06_L2: MRT Swath Tool not working

Stackexchange, I am looking at ftp://ladsftp.nascom.nasa.gov/allData/6/MOD06_L2/2012/222/MOD06_L2.A2012222.0800.006.2015062054108.hdf Trying to get the SDS (in WGS84 Projection and as GeoTiff): ...
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1answer
60 views

Determine XY offset in meters between two lat/long points (EPSG:4326), and accurately recreating point locations using XY offset

I have two tables in EPSG:4326, one for home locations and one for site locations. I need to be able to generate the XY offset in meters between the home location, and the site locations. I then need ...
0
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1answer
42 views

Converting GCS NAD 1983 to CA state plane

I have a polygon shapefile in GCS_North_American_1983. I'm trying to project it into NAD 1983 StatePlaneCalifornia III Fips 0403 (US Feet). This is my original file. When I run the project tool, ...
0
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0answers
28 views

How to project WRF data (lat/lon) onto ArcGIS maps

I have climate data generated using the WRF model, in lat/lon format (lambert conformal projection), in an Excel file. I'm looking to project / overlay this data onto a map of the UK using ArcGIS, ...
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0answers
38 views

Rectangular bounding box curved in D3.js

I am trying to project polygons to a map with a static background image using D3.js. The polygons looked slightly off in relation to the background so I drew the bounding box of the image, and sure ...
1
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3answers
68 views

Best projection / CRS for short-distance based analysis?

I'm having a bit of meltdown about projections and coordinate reference systems, and was hoping for a few pointers. I have 3 GIS projects, at 3 sites in Europe (the largest of which measures about ...
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0answers
55 views

Align vector and raster layers with D3

I have a geocoded raster image that I want to use as the background to a vector map with D3.js. The screenshot shows the layers in QGIS (grey is raster). Here's the markup for the map: <div ...
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1answer
51 views

Projection of Boston housing data

Boston housing data provided by GeoDa center is a well-known dataset. GeoDa Center provides this data in shapefile format. A metadata file included in the download indicates that the data use ...
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0answers
49 views

Create Envelope based on center point

I see in the Java SDK : https://developers.arcgis.com/java/api-reference/com/esri/core/geometry/Envelope.html they have : Envelope(Point center, double width, double height) Creates an envelope by ...
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0answers
25 views

Converting coordinate system of feature layers and datasets programmatically

I am trying to convert coordinate system of featurelayer and datasets using ESRI.ArcGIS.DataManagementTools.Project . The tool works fine in ArcCatalog . I have doubts about the parameters i am ...
1
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1answer
37 views

Projection bug between overlay and base layers

I am making a WebGIS application for a course and I am trying to integrate some nice base layers like OMS, Stamen, and Bing Maps with my overlay layers that are for Bolivia from a Bolivian map ...
0
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1answer
50 views

Can MapQuest tiles be used in an Openlayers 3 map with a non-standard projection?

I have a map in OpenLayers 3 with raster and GeoJSON layers that are in an UTM projection and I would like to use MapQuest tiles as a base map while keeping the map and layers projected as UTM. Is ...
0
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1answer
37 views

Convert from WGS84 to 2D projection

I have a map in the form of .bil & .hdr using WGS84. I'd like to convert this into another map using a 2D projection while keeping the lat/long information. What I'd really like with this new map ...