96 Answered Questions for the topic GIS
Gis
05/01/19
How often are coastlines updated in GIS on the Big Island of Hawaii or other areas with significant volcanic activity?
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03/27/19
Image interpolation from original earth coordinate matrix to a new earth coordinate matrix?
I have a geographical image covering a certain locations in New York State. Each pixels corresponds to a locations which its latitude and longitude can be obtained (Or you can say that each pixels...
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03/27/19
Several questions about using spatial data?
1. If you have spatial data for SQL server, can you use the spatial data (both geometry and geography) in another application for instance ESRI ArcGIS?
2. Is spatial data a standard that every GIS...
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03/27/19
Learning classical geography - recommended literature etc?
I've been working in the field of GIS for a few years now, and there are some disciplines of knowledge where I lack a good degree of education.
My educational background is that I've studied...
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03/27/19
Characterizing territory according to its relief using ArcGIS Desktop?
I want to characterize the territory according to its relief with ArcGis 10. I'm trying to define a wide territory by its relief, but I would like to do it in an automatic or semiautomatic form...
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03/27/19
PostGIS - st_intersects using polygons that cross antimeridan/equator?
New to using PostGIS and have two situations that I'm working with.
In the one case, I have a polygon that crossed the antemeridian and was detecting whether a two separate points located within...
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How to use use_spheroid=false in ST_DWithin?
I have created 2 geography columns and indexed them using `GIST`. I am looking to use `ST_DWithin` for a larger dataset and to make it faster trying to use the `use_spheroid=false`.
SELECT...
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Categories for supervised classification, wildlife analysis?
I am using GIS to undertake a small research on the loss of natural habitat in north England. I will be using Supervised Classification where I train the system on a few examples, e.g.
- shallow...
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03/19/19
Where can I get (USA) county neighbour relationship data?
I need a graph where each node is a US county and each edge represents a border shared between counties. I do not particularly care about the absolute position or shape of each county (though that...
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03/19/19
Calculate vertices' coordinates of a rectangle, given midline and broadth of rectangle?
I have latitude and longitude of two points making the midline of a rectangle. Now I want to determine coordinates of 4 vertices of that rectangle. I know how to calculate on plane geometry by...
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03/18/19
How is Geographic Information system used for Marketing Research?
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Trying to convert geometry to geography keep failing in MSSQL 2012?
In MSSQL I have LineString in Geometry type.
When I try to convert it to geography using :
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Gis
03/23/15
arc gis 10.1 version error
When I try to add given xy coordinates to the arc map it added.but when i put my country's layer in to the same arc map those added points are out of my country.if i set the coordinates of both...
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