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5

You cannot have it in the same coordinate system because EPSG 4326 is a degree system. What you sould do instead to transform it to EPSG 3857 which is wgs84 world mercator. See the link: http://spatialreference.org/ref/sr-org/6864/


4

I think the answer rests on what information about world rivers you want to communicate to your audience. For example, if you're trying to show a difference between the longest rivers in the world, you may want to use a projection with less area distortion. If you're trying to show where significant trade/resource rivers are, locational accuracy would be a ...


4

So there are two pieces to what someone might call a Coordinate System The first is a Geographic Coordinate System or GCS, which is what WGS84 falls under. The definition given by ESRI states that a GCS uses a three-dimensional spherical surface to define locations on the earth. Basically, a GCS is used to define your real world points on a 3 dimensional ...


3

So Albers Equal Area isn't just for use in the US. While it's mostly used here, you can change the center and parallels to reflect anywhere in the world. In this case, the Middle East. You can do that in d3 by changing the center when you're defining the projection. It would look something like this: var projection = d3.geo.albers() .rotate([*Rotation ...


3

From the Defining feature class properties documentation Additional rules: Names must begin with a letter, not a number or special character such as an asterisk (*) or percent sign (%). Names should not contain spaces. If you have a two-part name for your table or feature class, connect the words with an underscore (_), for example, garbage_routes. Names ...


2

Sorry. Some days without inet. So: reprojection into latlong (epsg 4326) or something adequate for the region's extent (otherwise it looks like Kandinsky), mosaic, reprojection to put favorite projection here and finally do your tiling. Enjoy.


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If you are working from land survey plats, the basis of bearing, even though it is referenced to California Grid Zone 5, should have a starting, or reference line for the basis of bearing. This should be at the beginning of the description for the easement. It may start at a section corner, or some other aliquot corner, and describe the traverse to the ...


2

I am not from California but in my state the declination should be listed on the plat or record of instrument, at least it usually is. If not I believe this may help, put in the area the survey was done and the date it was done and it should give you declination. NGS has alot of cool tools btw http://www.ngdc.noaa.gov/geomag-web/ The difference between ...


1

There are two principal datums used in South Africa. These include Hartebeesthoek94 and Cape. Hartebeesthoek94 Datum is the official geodetic datum for South Africa. The Cape datum is the older of the two is no longer used. This references the Clarke 1880 ellipsoid and it was developed by Sir Thomas Maclear and Sir David Gill in the later 19th - early ...


1

Transform your center point, use the internal and external Projection as cgarillo mentioned and then also define the Projection of your vectorLayer and your map: var center_coord = new OpenLayers.LonLat(lon, lat).transform("EPSG:4326", "EPSG:3857"); map.setCenter(center_coord, zoom); ... var geojsonLayer = new OpenLayers.Layer.Vector("GeoJSON", { ...


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From the GeoTools Referencing FAQ - Can I just use Referencing without the rest of GeoTools? Yes, you will need to use the metadata module, and one of the epsg modules. Along with their dependencies such as units. Then all you need to do is: CoordinateReferenceSystem sourceCRS = CRS.decode("EPSG:4326"); MathTransform transform = ...


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I was able to figure it out. I had to create a custom project and add it to geoserver. At first, I was trying to find pre-defined projection thinking they were complicated to add to the system but it was much easier than what I though. I took a previously defined user projection in geoserver and just copied and pasted parts of the projection of the layer to ...


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You will not get lucky with predefined EPSG codes, because these are not defined for all local CRS in the world. gdalsrsinfo on the WKT definition returns: +proj=lcc +lat_1=0 +lat_2=0 +lat_0=46.66964837722222 +lon_0=-91.15277777777777 +x_0=228600.4575057151 +y_0=148551.4835661671 +ellps=GRS80 +units=us-ft +no_defs So you have to create a custom CRS to ...


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I cannot imagine that UTM is not suitable for your purposes. Are you sure you picked the correct zone for the location of your dataset? Example: http://spatialreference.org/ref/epsg/32632/ I don't know much about P.T.L. but it seems to work similarly as UTM. It is unlikely that it is included in common GIS coordinate reference system (CRS) definitions, ...


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There are some interesting irregularities here. I'll try to generalize the answer, particularly by discussing the parameters that are zeroes in this definition but might not be in another XML-based coordinate reference system (CRS) definition. A colleague pointed out that usually XML has uses angle brackets for the attribute/value pairs. The geographic ...



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