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0answers
11 views

Reclassify weighted sum values

I have using weighted sum to find areas to plant trees. The values I get out by using weighted sum are 0.7-0.9 in floating point. I want to be able to reclassify this layer so I can then use region ...
1
vote
1answer
37 views

R package for geographic regions

Someone told me about a R package with the definition of objects some regions and nations boundaries. I'm trying to find the border of Veneto, an italian region. What's the name of the package? Do you ...
2
votes
1answer
64 views

Grass python shell can't find my data

I have a problem, the grass 7 python shell can't find my rasters. When I try to use the python shell to set the region I get "region not found". I can set the region in the grass shell (and other ...
0
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0answers
23 views

read feature of a region in map

I am using geoserver and openlayer for developing a GIS application. Is it possible to read features lying within a known polygon area of map through some looping logic without any click on map? I ...
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votes
0answers
21 views

problem r.walk region GRASS

I'm getting troubles to run r.walk. If I run r.walk in this region: projection: 3 (Latitud - Longitud.) zone: 0 datum: wgs84 ellipsoid: wgs84 north: 33:39:03N south: 29:16:03N ...
2
votes
1answer
170 views

How to iterate GRASS region definition?

I am using GRASS r.skyview command (v.7, Windows) to determine "urban canyon effect" on pollution due to the presence of buildings. The command nicely works, unfortunately I need to process a very ...
3
votes
2answers
166 views

Is there a function to select a region of a map for further processing with Python?

I would like to select a map's region in QGIS for further processing with python console. Ideally I would like to select the region with a mouse drag (like Gimp crop function) and then e.g. analyze ...
0
votes
1answer
127 views

Set Grass Region in Python grass.script

How can I set the Grass Region in Python without already having a map in the Mapset? Basically I am looking for the equivalent to this window Currently I am only able to extent an existing region, ...
0
votes
1answer
328 views

ARCGIS 10- Cutting down a tiff file layer to a smaller polygon?

I have a dynamic land map featuring open forest, closed forest ect of an area which is a tiff layer file. I want to be able to cut the layer file to my area of interest, the polygon I created? I also ...
2
votes
2answers
325 views

Raster map in different zone () than region ()

I am new to QGIS (just installed QGIS 2.0.1) and am having problems running any spatial analysis tools. I followed the instructions on how to call GRASS tools into QGIS, but when I try to run the ...
1
vote
0answers
61 views

grass region resolution error

I am working on a raster, but I can't set a correct region for it. In the Set region to match this raster map field, I select my raster map to change current region, but its resolution does not ...
0
votes
1answer
224 views

Create new regions in layer by filling in between polylines on existing layer

I'm not sure if this is possible but would save me hours of work. I have a layer which consists of polylines. Most of those polylines bound areas; houses, roads, etc. Currently I am required to ...
3
votes
1answer
1k views

UK region overlay on map

I'm hoping to overlay UK regions (East Midlands, Wales, London etc) on a Google Map. Ideally the regions could be coloured, opaque and have some form of label. There is no hover / interaction ...
5
votes
4answers
7k views

Getting polygons of all countries and ISO-3166-2 subdivisons

In order to do reverse geocoding lookups to find a country (as ISO-3166-1) and the subdivision (as ISO-3166-2) for given coordinates I am looking for a way to get all polygons of all countries and ...
2
votes
2answers
383 views

Mapinfo, (or other?) Interpolation of lat/long and finding minimum in a region

I have a series of lat/long coordinates, each with a corresponding Z value. Each coordinate is spaced roughly 40km apart (this is stored as a MapInfo table of points). What I'd like to do is to ...
14
votes
2answers
3k views

Is it possible to gray out a Google Maps map except for some area?

What i am looking for is a way to emphasize a certain area on a Google Maps map by graying out the rest of the world. I heard about some solution of using 2 polygons of which 1 is visible and the ...
0
votes
1answer
719 views

Mapinfo incorrect polyline (boundary) map to region conversion

How to solve issue regarding incorrect boundary to region conversion? I have boundary map plotted on cosmetic layer when I convert it to region it results in line with overlap to other region. The two ...
1
vote
1answer
112 views

How do I convert my coordinates to the limit of geographic region (outer edge)?

I am trying to use r.in.bin. The parameters of north, south, east, and west needs values: north=float Northern limit of geographic region (outer edge) south=float Southern limit of geographic region ...