[GRASSLIST:9252] Re: mapping the output of a population model

[Ian MacMillan]

Luigi, I think that I have seen on this list that you need to place 
your legend without using the mouse.  Maybe you could place it on the 
screen using screen coordinates or map coordinates instead?

G'luck
-Ian



On Nov 29, 2005, at 1:11 PM, Luigi Ponti wrote:

> Thanks Ian,
>
> I used it and it worked very well. I also used only the r.mapcalc to 
> clip instead of MASK, so as to clip just one layer and not the entire 
> display.
>
> I would like to ask if somebody knows the reason why when saving a 
> display to a .png file with d.out.png, the legend produced via 
> d.legend does not show up in the saved .png image.
>
> As a side note, I would like to thank again the mailing: my mapping 
> task is pretty much accomplished.
>
> Luigi
>
> Ian MacMillan wrote:
>
>> Luigi, try something like:
>> r.mapcalc newmap= 'if (oldmap>1000,oldmap,null())'
>>
>> -Ian
>>
>> On Nov 28, 2005, at 1:48 PM, Luigi Ponti wrote:
>>
>>> Thanks Stephan,
>>>
>>> I was able to import the ASCII text file to vector points and 
>>> interpolate between them.
>>> Also, based on a very useful but unrelated discussion, I obtained a 
>>> very pretty shaded relief over which I draped the interpolated 
>>> raster.
>>>
>>> Now I have started clipping the region that are not of interest to 
>>> the analysis. To clip out what is not California, I have transformed 
>>> a vector layout of the state to a raster via v.to.rast, and used it 
>>> as a mask in v.surf.rst.
>>>
>>> How could I clip regions that have an elevation greater than a 
>>> particular value based on the elevation model raster?
>>>
>>> Thanks again,
>>>
>>> Luigi
>>>
>>>
>>>
>>>
>>>
>>> Stephan Holl wrote:
>>>
>>>> Hello Luigi,
>>>> On Mon, 21 Nov 2005 17:20:05 -0800 Luigi Ponti <lponti at infinito.it>
>>>> wrote:
>>>>
>>>>
>>>>> Thanks Ian and Hamish,
>>>>>
>>>>> I was eventually able to fix the problem by downloading a 
>>>>> unprojected California layout shapefile (form <www.census.gov>) 
>>>>> and then
>>>>> importing it via v.proj in the location with the digital elevation
>>>>> map. Apparently the official shapefile of California layout has a
>>>>> wrong latitude.
>>>>>
>>>>> Next step is to connect the output table of the population model 
>>>>> (population densities at weather stations) to the map I have just 
>>>>> created. This would hopefully result in an interpolated raster.
>>>>>
>>>>> Hamish suggested the following:
>>>>>
>>>>> Load in site data with v.in.ascii & interpolate between sites with
>>>>> v.surf.rst.
>>>>>
>>>>> According to the manual v.in.ascii uses the | separator. Is it 
>>>>> worth
>>>>> to manually put the file in that format or do you think is better 
>>>>> to
>>>>> convert it in a database to connect with a specific command?
>>>>>
>>>>>
>>>>
>>>> you could use the fs="," for selecting a , as a selector.
>>>>
>>>> have a look at the manual-page of v.in.ascii.
>>>>
>>>> g.manual v.in.ascii or
>>>>
>>>> v.in.ascii -h
>>>>
>>>>
>>>> Best
>>>>     Stephan
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>> >
>> >
>> What happens if a big asteroid hits Earth? Judging from realistic 
>> simulations involving a sledge hammer and a common laboratory frog, 
>> we can assume it will be pretty bad.
>>  - Dave Barry
>>
>>
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>>
>
>
 >
 >
What happens if a big asteroid hits Earth? Judging from realistic 
simulations involving a sledge hammer and a common laboratory frog, we 
can assume it will be pretty bad.
  - Dave Barry


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