[GRASS-user] Problem with g.gui.tplot

Hi guys!
I have a problem with gui.plot, or I should say, I have a suggestion for the developpers.
This is a very useful tool, but it becomes quite unusable when in the time series there are some null values (graph 1).
In fact in the graph, instead of not showing those values, they are indicated as if they had a −2,147,483,648 value (long integer of C ISO/ANSI C99 programming language?), and the resulting graph is pretty discouraging. Even though there is the zoom tool to fit better to the good values, it is not nice to see those vertical line (graph 2).
Is there any solution for that?

Greetings!
Immagine in linea 1Immagine in linea 2

Ciao Leo!

I cannot reproduce what you are observing in g.gui.tplot.
I’ve tried with a strds of mine that has a lot of NULL values (set with r.null) and it looks good, as expected, where I have null values, i see a blank space in the plot…

Can you send us a subset of the strds, upload it somewhere, or reproduce the example with North Carolina data set, so we can understand what’s happening???

ciao,
Vero

(attachments)

graph2.png
graph1.png

···

2015-05-28 11:11 GMT-03:00 leonardo sandon <leomadvr@gmail.com>:

Hi guys!
I have a problem with gui.plot, or I should say, I have a suggestion for the developpers.
This is a very useful tool, but it becomes quite unusable when in the time series there are some null values (graph 1).
In fact in the graph, instead of not showing those values, they are indicated as if they had a −2,147,483,648 value (long integer of C ISO/ANSI C99 programming language?), and the resulting graph is pretty discouraging. Even though there is the zoom tool to fit better to the good values, it is not nice to see those vertical line (graph 2).
Is there any solution for that?

Greetings!
Immagine in linea 1Immagine in linea 2


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Hi Veronica, hi everyone,
thanks for your answer.
For those who are interested on discover what is happening to my machine, I link you a dropbox direction to download a “bite” of one of my strds which are causing me the problem I wrote about.
There is also a collection of shp, that can be used to set the projection (sinusoidal, Samson Flansted). Finally you’ll find a graph made with g.gui.tplot, just to compare yours to mine.

Thanks to all the willing! Greetings!

Leonardo

https://www.dropbox.com/sh/simz28i4qyajddc/AAB0_tAaEe8yWgbt1miIBeHCa?dl=0

(attachments)

graph1.png
graph2.png

···

2015-05-28 11:33 GMT-03:00 Veronica Andreo <veroandreo@gmail.com>:

Ciao Leo!

I cannot reproduce what you are observing in g.gui.tplot.
I’ve tried with a strds of mine that has a lot of NULL values (set with r.null) and it looks good, as expected, where I have null values, i see a blank space in the plot…

Can you send us a subset of the strds, upload it somewhere, or reproduce the example with North Carolina data set, so we can understand what’s happening???

ciao,
Vero

2015-05-28 11:11 GMT-03:00 leonardo sandon <leomadvr@gmail.com>:

Hi guys!
I have a problem with gui.plot, or I should say, I have a suggestion for the developpers.
This is a very useful tool, but it becomes quite unusable when in the time series there are some null values (graph 1).
In fact in the graph, instead of not showing those values, they are indicated as if they had a −2,147,483,648 value (long integer of C ISO/ANSI C99 programming language?), and the resulting graph is pretty discouraging. Even though there is the zoom tool to fit better to the good values, it is not nice to see those vertical line (graph 2).
Is there any solution for that?

Greetings!
Immagine in linea 1Immagine in linea 2


grass-user mailing list
grass-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-user

I have exactly the same problem, with all datasets. All NA values (set with
r.null) have the value -2.5 1e9, which is very very low. Has there been a
solution to this issue? I'm using the newest daily version of GRASS (7.1
svn) on Ubuntu..

all the best,
Martin

--
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Hi Martin and Leo,

The GRASS community sprint will take place very soon (19 to 22 July) at Como (Italy) and Luca said he will work on g.gui.tplot… so, I’m confident there will be a solution… You can check here [0] :slight_smile:

In any case, have you tried reproducing this behavior with North Carolina data set??? Creating a strds with any of the maps there, setting a null value and then plotting???

Cheers,
Vero

[0] http://grasswiki.osgeo.org/wiki/GRASS_Community_Sprint_Como_2015

···

2015-07-07 13:49 GMT-03:00 Martin_Brandt <martin.brandt@mailbox.org>:

I have exactly the same problem, with all datasets. All NA values (set with
r.null) have the value -2.5 1e9, which is very very low. Has there been a
solution to this issue? I’m using the newest daily version of GRASS (7.1
svn) on Ubuntu…

all the best,
Martin


View this message in context: http://osgeo-org.1560.x6.nabble.com/Problem-with-g-gui-tplot-tp5208026p5214713.html
Sent from the Grass - Users mailing list archive at Nabble.com.


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