[GRASS-dev] r.series and r.series.interpol

GRASS GIS GRASS GIS developer
1

Dear all,
just for your information. I have added a new option to r.series to
specify a weighting factor to each map in a series. Weighting is
needed to aggregate overlapping/containing interval time series
correctly in case of average and sum operations. The new temporal
modules tr.aggregate and tr.aggregate.ds need this option.

Furthermore i have added a new module (r.series.interpol) to
interpolate raster map series located temporal or spatial in between
existing raster maps. This module is still under development and
implements currently only simple linear interpolation in a normalized
interval. I plan to implement step-wise linear interpolation[1] and
natural cubic spline interpolation[2].

Because of the large amount of files related to the unit and
regression tests located in the modules directory, we should use a
dedicated one. Hence, i will move successively all files related to
testing into new directories named "test" located in the module
directories.

Best regards and happy new year 2012
Soeren

[1] http://en.wikipedia.org/wiki/Interpolation#Linear_interpolation
[2] http://en.wikipedia.org/wiki/Spline_interpolation

2

Hi,

2011/12/30 Sören Gebbert <soerengebbert@googlemail.com>:

Furthermore i have added a new module (r.series.interpol) to

great! Just a small note, maybe we should follow same naming
convention, see `r.resamp.interp`.

Martin

--
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa

3

Sören,

This is very interesting – I think I may have an immediate application for these modules…

Best to you in 2012 and thank you for your development activities!

Regards,
Tom

2011/12/30 Sören Gebbert <soerengebbert@googlemail.com>

Dear all,
just for your information. I have added a new option to r.series to
specify a weighting factor to each map in a series. Weighting is
needed to aggregate overlapping/containing interval time series
correctly in case of average and sum operations. The new temporal
modules tr.aggregate and tr.aggregate.ds need this option.

Furthermore i have added a new module (r.series.interpol) to
interpolate raster map series located temporal or spatial in between
existing raster maps. This module is still under development and
implements currently only simple linear interpolation in a normalized
interval. I plan to implement step-wise linear interpolation[1] and
natural cubic spline interpolation[2].

Because of the large amount of files related to the unit and
regression tests located in the modules directory, we should use a
dedicated one. Hence, i will move successively all files related to
testing into new directories named “test” located in the module
directories.

Best regards and happy new year 2012
Soeren

[1] http://en.wikipedia.org/wiki/Interpolation#Linear_interpolation
[2] http://en.wikipedia.org/wiki/Spline_interpolation

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–

Thomas E Adams
National Weather Service
Ohio River Forecast Center
1901 South State Route 134
Wilmington, OH 45177
 
EMAIL:	[thomas.adams@noaa.gov](mailto:thomas.adams@noaa.gov)
 
VOICE:	937-383-0528
FAX:	937-383-0033
4

Hi Martin,

2011/12/30 Martin Landa <landa.martin@gmail.com>:

Hi,

2011/12/30 Sören Gebbert <soerengebbert@googlemail.com>:

Furthermore i have added a new module (r.series.interpol) to

great! Just a small note, maybe we should follow same naming
convention, see `r.resamp.interp`.

Oh what a pity, "interpol" sounds so cool and is IMHO more intuitive
than "interp" ... and its the name of an international agency. :slight_smile:
So should we rename "interp" into "interpol" or "interpol" into "interp"?

Best regards and happy new year
Soeren

Martin

--
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa

5

Hi,

2011/12/31 Sören Gebbert <soerengebbert@googlemail.com>:

So should we rename "interp" into "interpol" or "interpol" into "interp"?

I have no strong opinion, I just wanted to note that we should use the
same name. `Interpol` is also nice abbreviation, probably someone from
Interpol could start to use GRASS for his/her work :wink:

Martin

[1] http://en.wikipedia.org/wiki/Interpol

--
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa

6

Hi,

2011/12/31 Sören Gebbert <soerengebbert@googlemail.com>:

great! Just a small note, maybe we should follow same naming
convention, see `r.resamp.interp`.

Oh what a pity, "interpol" sounds so cool and is IMHO more intuitive
than "interp" ... and its the name of an international agency. :slight_smile:
So should we rename "interp" into "interpol" or "interpol" into "interp"?

to avoid that this issue will be lost. We should make some decision.

Martin

--
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa

7

2012/1/4 Martin Landa <landa.martin@gmail.com>:

Hi,

2011/12/31 Sören Gebbert <soerengebbert@googlemail.com>:

great! Just a small note, maybe we should follow same naming
convention, see `r.resamp.interp`.

Oh what a pity, "interpol" sounds so cool and is IMHO more intuitive
than "interp" ... and its the name of an international agency. :slight_smile:
So should we rename "interp" into "interpol" or "interpol" into "interp"?

to avoid that this issue will be lost. We should make some decision.

I am still waiting for response from more developers .... in case no positive
signal for interpol is made in the next two days, i will rename the
module to r.series.interp.

Soeren

Martin

--
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa

8

2012/1/4 Sören Gebbert <soerengebbert@googlemail.com>:

2012/1/4 Martin Landa <landa.martin@gmail.com>:

Hi,

2011/12/31 Sören Gebbert <soerengebbert@googlemail.com>:

great! Just a small note, maybe we should follow same naming
convention, see `r.resamp.interp`.

Oh what a pity, "interpol" sounds so cool and is IMHO more intuitive
than "interp" ... and its the name of an international agency. :slight_smile:
So should we rename "interp" into "interpol" or "interpol" into "interp"?

to avoid that this issue will be lost. We should make some decision.

I am still waiting for response from more developers .... in case no positive
signal for interpol is made in the next two days, i will rename the
module to r.series.interp.

First come first serve. r.resamp.interp was there first, and interp is
used in various places as abbreviation for interpolation, thus I would
opt for r.series.interp.

my2c

Markus M

9

Sea surface temps from satellite imagery to try to account for cloudy days?

Doug

Doug Newcomb
USFWS
Raleigh, NC
919-856-4520 ext. 14 doug_newcomb@fws.gov

The opinions I express are my own and are not representative of the official policy of the U.S.Fish and Wildlife Service or Dept. of the Interior. Life is too short for undocumented, proprietary data formats.

Thomas Adams <thomas.adams@noaa.gov>
Sent by: grass-dev-bounces@lists.osgeo.org

12/30/2011 10:35 AM

To

Sören Gebbert <soerengebbert@googlemail.com>

cc

GRASS developers list <grass-dev@lists.osgeo.org>

Subject

Re: [GRASS-dev] r.series and r.series.interpol

Sören,

This is very interesting – I think I may have an immediate application for these modules…

Best to you in 2012 and thank you for your development activities!

Regards,
Tom

2011/12/30 Sören Gebbert <soerengebbert@googlemail.com>
Dear all,
just for your information. I have added a new option to r.series to
specify a weighting factor to each map in a series. Weighting is
needed to aggregate overlapping/containing interval time series
correctly in case of average and sum operations. The new temporal
modules tr.aggregate and tr.aggregate.ds need this option.

Furthermore i have added a new module (r.series.interpol) to
interpolate raster map series located temporal or spatial in between
existing raster maps. This module is still under development and
implements currently only simple linear interpolation in a normalized
interval. I plan to implement step-wise linear interpolation[1] and
natural cubic spline interpolation[2].

Because of the large amount of files related to the unit and
regression tests located in the modules directory, we should use a
dedicated one. Hence, i will move successively all files related to
testing into new directories named “test” located in the module
directories.

Best regards and happy new year 2012
Soeren

[1] http://en.wikipedia.org/wiki/Interpolation#Linear_interpolation
[2] http://en.wikipedia.org/wiki/Spline_interpolation

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

–
Thomas E Adams
National Weather Service
Ohio River Forecast Center
1901 South State Route 134
Wilmington, OH 45177

EMAIL: thomas.adams@noaa.gov

VOICE: 937-383-0528
FAX: 937-383-0033

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10

2012/1/4 Markus Metz <markus.metz.giswork@googlemail.com>:

2012/1/4 Sören Gebbert <soerengebbert@googlemail.com>:

2012/1/4 Martin Landa <landa.martin@gmail.com>:

Hi,

2011/12/31 Sören Gebbert <soerengebbert@googlemail.com>:

great! Just a small note, maybe we should follow same naming
convention, see `r.resamp.interp`.

Oh what a pity, "interpol" sounds so cool and is IMHO more intuitive
than "interp" ... and its the name of an international agency. :slight_smile:
So should we rename "interp" into "interpol" or "interpol" into "interp"?

Perhaps interpol is slightly more intuitive but...

...

First come first serve. r.resamp.interp was there first, and interp is
used in various places as abbreviation for interpolation, thus I would
opt for r.series.interp.

... I tend to agree with Markus M here: if we change that tons of links,
documents, tutorials (and user memories) etc would have to be updated.
So I believe that adapting the new to the existing name is better.

Markus

11

+1 for r.series.interp as well

Helena

On Wed, Jan 4, 2012 at 9:28 AM, Markus Neteler <neteler@osgeo.org> wrote:

2012/1/4 Markus Metz <markus.metz.giswork@googlemail.com>:

2012/1/4 Sören Gebbert <soerengebbert@googlemail.com>:

2012/1/4 Martin Landa <landa.martin@gmail.com>:

Hi,

2011/12/31 Sören Gebbert <soerengebbert@googlemail.com>:

great! Just a small note, maybe we should follow same naming
convention, see `r.resamp.interp`.

Oh what a pity, "interpol" sounds so cool and is IMHO more intuitive
than "interp" ... and its the name of an international agency. :slight_smile:
So should we rename "interp" into "interpol" or "interpol" into "interp"?

Perhaps interpol is slightly more intuitive but...

...

First come first serve. r.resamp.interp was there first, and interp is
used in various places as abbreviation for interpolation, thus I would
opt for r.series.interp.

... I tend to agree with Markus M here: if we change that tons of links,
documents, tutorials (and user memories) etc would have to be updated.
So I believe that adapting the new to the existing name is better.

Markus
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Helena Mitasova
Associate Professor
Department of Marine, Earth and Atmospheric Sciences
North Carolina State University
1125 Jordan Hall
NCSU Box 8208
Raleigh, NC 27695-8208
http://skagit.meas.ncsu.edu/~helena/

email: hmitaso@ncsu.edu
ph: 919-513-1327 (no voicemail)
fax 919 515-7802