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Data Display in SMCE criteria tree

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Sharmin Ara

Data Display in SMCE criteria tree

I ma having a problem to show the data in the ILWIS viewer and in SMCE criteria tree. I have several shape file saved in ArcMap 10.2. Now I want to work with SMCE for my analysis. Thus I imported all shape files to ILWIS to display. But I couldn't add those file in the criteria tree. I also converted all shapefiles to raster in Arcmap and then tried to import in ILWIS to do SMCE but i failed to show those. I need to solve this problem. If anybody of you can help me would be appreciated. ILWIS.docx

Bas Retsios

Re: Data Display in SMCE criteria tree

Hello,

ILWIS SMCE is an application that works with raster data of a certain
study-area. Therefore, to use data in the SMCE application as criteria
(factors/constraints), it must be in the ILWIS raster image format (file
extension .mpr).
In your screenshot I was able to distinguish that you have successfully
loaded one map in SMCE called "Landuse.mpr".
However you have also tried to load "Catchment.mpa" which is a polygon
map (not raster; the extension .mpa is used for polygon maps).

Solution:
Convert all your data to the ILWIS raster file format. Furthermore, for
use in SMCE, all maps must have the same Georeference.

Steps:
1. Import the relevant data into ILWIS (both raster and vector).
2. Define the study-area by means of a Georeference (or decide which
existing Georeference best represents the study-area).
Note: a Georeference is a property of a raster image (thus vector images
do not have a Georeference).
3. Transform any raster data that does not match the study-area's
Georeference, to the bounds and pixel size of this Georeference
(operation "Resample").
4. Convert the vector data to the same Georeference (operation "Polygon
to Raster" or "Segment to Raster" or "Point to Raster")
5. Some of the vector data may require further processing besides
rasterization, in order to make sense to use it in SMCE. E.g. for a
roadmap or a map with cities you would want to compute a distance-map
(described "distance from roads" or "distance from cities").

About Georeferences in ILWIS:
In ILWIS, a Georeference is a file with the .grf extension. It defines
the coordinate-boundaries and the pixel-size of a raster image. Multiple
raster images can share a Georeference. The SMCE application even
requires that all its data uses the same Georeference (because it
wouldn't make sense to combine data of different study-areas).
When importing raster data (e.g. TIFF files) into ILWIS, their
Georeference is also automatically imported.
If you only have vector data (polygons, lines, points), and want to use
SMCE with those, then you must create a Georeference that describes your
study-area (File->Create->Georeference).
Provide the boundaries of the study-area (the coordinates), the
pixel-size that the rasters must have, and their Coordinate System.

Best regards,

Bas Retsios
ILWIS team

On 4/9/2016 12:51 PM, Sharmin Ara wrote:

> I ma having a problem to show the data in the ILWIS viewer and in SMCE
> criteria tree. I have several shape file saved in ArcMap 10.2. Now I want to
> work with SMCE for my analysis. Thus I imported all shape files to ILWIS to
> display. But I couldn't add those file in the criteria tree. I also
> converted all shapefiles to raster in Arcmap and then tried to import in
> ILWIS to do SMCE but i failed to show those. I need to solve this problem.
> If anybody of you can help me would be appreciated. ILWIS.docx
> <http://ilwis.forum.52north.org/file/n4025885/ILWIS.docx>
>
>
>
> --
> View this message in context: http://ilwis.forum.52north.org/Data-Display-in-SMCE-criteria-tree-tp4025885.html
> Sent from the 52° North - ILWIS Community Forum mailing list archive at Nabble.com.
> _______________________________________________
> Ilwis mailing list
> [hidden email]
> http://list.52north.org/mailman/listinfo/ilwis
> http://ilwis.forum.52north.org
> Please respect our mailing list guidelines:
> http://52north.org/resources/mailing-lists-and-forums/guidelines

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Martin Kabantu

Re: Data Display in SMCE criteria tree

Dear all

how can I solve the issue of out of memory in ILWIS 3.3.1 software, when I am working with a DEM 90m of the Congo River Basin. note that the area of the Basin is of 3.7 million km2

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: +243896338622; +263782850338

[hidden email]

2016-09-05 12:00 GMT+02:00 Bas Retsios <[hidden email]>:

Hello,

ILWIS SMCE is an application that works with raster data of a certain study-area. Therefore, to use data in the SMCE application as criteria (factors/constraints), it must be in the ILWIS raster image format (file extension .mpr).
In your screenshot I was able to distinguish that you have successfully loaded one map in SMCE called "Landuse.mpr".
However you have also tried to load "Catchment.mpa" which is a polygon map (not raster; the extension .mpa is used for polygon maps).

Solution:
Convert all your data to the ILWIS raster file format. Furthermore, for use in SMCE, all maps must have the same Georeference.

Steps:
1. Import the relevant data into ILWIS (both raster and vector).
2. Define the study-area by means of a Georeference (or decide which existing Georeference best represents the study-area).
Note: a Georeference is a property of a raster image (thus vector images do not have a Georeference).
3. Transform any raster data that does not match the study-area's Georeference, to the bounds and pixel size of this Georeference (operation "Resample").
4. Convert the vector data to the same Georeference (operation "Polygon to Raster" or "Segment to Raster" or "Point to Raster")
5. Some of the vector data may require further processing besides rasterization, in order to make sense to use it in SMCE. E.g. for a roadmap or a map with cities you would want to compute a distance-map (described "distance from roads" or "distance from cities").

About Georeferences in ILWIS:
In ILWIS, a Georeference is a file with the .grf extension. It defines the coordinate-boundaries and the pixel-size of a raster image. Multiple raster images can share a Georeference. The SMCE application even requires that all its data uses the same Georeference (because it wouldn't make sense to combine data of different study-areas).
When importing raster data (e.g. TIFF files) into ILWIS, their Georeference is also automatically imported.
If you only have vector data (polygons, lines, points), and want to use SMCE with those, then you must create a Georeference that describes your study-area (File->Create->Georeference).
Provide the boundaries of the study-area (the coordinates), the pixel-size that the rasters must have, and their Coordinate System.

Best regards,

Bas Retsios
ILWIS team

On 4/9/2016 12:51 PM, Sharmin Ara wrote:

I ma having a problem to show the data in the ILWIS viewer and in SMCE
criteria tree. I have several shape file saved in ArcMap 10.2. Now I want to
work with SMCE for my analysis. Thus I imported all shape files to ILWIS to
display. But I couldn't add those file in the criteria tree. I also
converted all shapefiles to raster in Arcmap and then tried to import in
ILWIS to do SMCE but i failed to show those. I need to solve this problem.
If anybody of you can help me would be appreciated. ILWIS.docx
<http://ilwis.forum.52north.org/file/n4025885/ILWIS.docx>

--
View this message in context: http://ilwis.forum.52north.org/Data-Display-in-SMCE-criteria-tree-tp4025885.html
Sent from the 52° North - ILWIS Community Forum mailing list archive at Nabble.com.
_______________________________________________
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http://ilwis.forum.52north.org
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_______________________________________________
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http://ilwis.forum.52north.org
Please respect our mailing list guidelines:
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schouwenburg

Re: Data Display in SMCE criteria tree

Using a later version of ilwis J. Older version of Ilwis are limited in the file size they can handle. In Ilwis 3.8.5 this has been solved

From: Ilwis [mailto:[hidden email]] On Behalf Of Martin Kabantu
Sent: woensdag 29 maart 2017 14:04
To: Retsios, V. (ITC) <[hidden email]>
Cc: [hidden email]; Sharmin Ara <[hidden email]>
Subject: Re: [Ilwis] Data Display in SMCE criteria tree

Dear all

how can I solve the issue of out of memory in ILWIS 3.3.1 software, when I am working with a DEM 90m of the Congo River Basin. note that the area of the Basin is of 3.7 million km2

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: +243896338622; +263782850338

[hidden email]

2016-09-05 12:00 GMT+02:00 Bas Retsios <[hidden email]>:

Hello,

ILWIS SMCE is an application that works with raster data of a certain study-area. Therefore, to use data in the SMCE application as criteria (factors/constraints), it must be in the ILWIS raster image format (file extension .mpr).
In your screenshot I was able to distinguish that you have successfully loaded one map in SMCE called "Landuse.mpr".
However you have also tried to load "Catchment.mpa" which is a polygon map (not raster; the extension .mpa is used for polygon maps).

Solution:
Convert all your data to the ILWIS raster file format. Furthermore, for use in SMCE, all maps must have the same Georeference.

Steps:
1. Import the relevant data into ILWIS (both raster and vector).
2. Define the study-area by means of a Georeference (or decide which existing Georeference best represents the study-area).
Note: a Georeference is a property of a raster image (thus vector images do not have a Georeference).
3. Transform any raster data that does not match the study-area's Georeference, to the bounds and pixel size of this Georeference (operation "Resample").
4. Convert the vector data to the same Georeference (operation "Polygon to Raster" or "Segment to Raster" or "Point to Raster")
5. Some of the vector data may require further processing besides rasterization, in order to make sense to use it in SMCE. E.g. for a roadmap or a map with cities you would want to compute a distance-map (described "distance from roads" or "distance from cities").

About Georeferences in ILWIS:
In ILWIS, a Georeference is a file with the .grf extension. It defines the coordinate-boundaries and the pixel-size of a raster image. Multiple raster images can share a Georeference. The SMCE application even requires that all its data uses the same Georeference (because it wouldn't make sense to combine data of different study-areas).
When importing raster data (e.g. TIFF files) into ILWIS, their Georeference is also automatically imported.
If you only have vector data (polygons, lines, points), and want to use SMCE with those, then you must create a Georeference that describes your study-area (File->Create->Georeference).
Provide the boundaries of the study-area (the coordinates), the pixel-size that the rasters must have, and their Coordinate System.

Best regards,

Bas Retsios
ILWIS team

On 4/9/2016 12:51 PM, Sharmin Ara wrote:

I ma having a problem to show the data in the ILWIS viewer and in SMCE
criteria tree. I have several shape file saved in ArcMap 10.2. Now I want to
work with SMCE for my analysis. Thus I imported all shape files to ILWIS to
display. But I couldn't add those file in the criteria tree. I also
converted all shapefiles to raster in Arcmap and then tried to import in
ILWIS to do SMCE but i failed to show those. I need to solve this problem.
If anybody of you can help me would be appreciated. ILWIS.docx
<http://ilwis.forum.52north.org/file/n4025885/ILWIS.docx>

--
View this message in context: http://ilwis.forum.52north.org/Data-Display-in-SMCE-criteria-tree-tp4025885.html
Sent from the 52° North - ILWIS Community Forum mailing list archive at Nabble.com.
_______________________________________________
Ilwis mailing list
[hidden email]
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http://ilwis.forum.52north.org
Please respect our mailing list guidelines:
http://52north.org/resources/mailing-lists-and-forums/guidelines

_______________________________________________
Ilwis mailing list
[hidden email]
http://list.52north.org/mailman/listinfo/ilwis
http://ilwis.forum.52north.org
Please respect our mailing list guidelines:
http://52north.org/resources/mailing-lists-and-forums/guidelines

Martin Kabantu

Re: Data Display in SMCE criteria tree

thank

I used ILWIS 3.8.5 I managed to import the DEM, but when using fill sinks application under DEM Hydroprocessing the same problem I still there. attached are the print screen

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: +243896338622; +263782850338

[hidden email]

2017-03-29 15:37 GMT+02:00 <[hidden email]>:

Using a later version of ilwis J. Older version of Ilwis are limited in the file size they can handle. In Ilwis 3.8.5 this has been solved

From: Ilwis [mailto:[hidden email]] On Behalf Of Martin Kabantu
Sent: woensdag 29 maart 2017 14:04
To: Retsios, V. (ITC) <[hidden email]>
Cc: [hidden email]; Sharmin Ara <[hidden email]>
Subject: Re: [Ilwis] Data Display in SMCE criteria tree

Dear all

how can I solve the issue of out of memory in ILWIS 3.3.1 software, when I am working with a DEM 90m of the Congo River Basin. note that the area of the Basin is of 3.7 million km2

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: <a href="tel:0896%20338%20622" value="+243896338622" target="_blank">+243896338622; <a href="tel:+263%2078%20285%200338" value="+263782850338" target="_blank">+263782850338

[hidden email]

2016-09-05 12:00 GMT+02:00 Bas Retsios <[hidden email]>:

Hello,

ILWIS SMCE is an application that works with raster data of a certain study-area. Therefore, to use data in the SMCE application as criteria (factors/constraints), it must be in the ILWIS raster image format (file extension .mpr).
In your screenshot I was able to distinguish that you have successfully loaded one map in SMCE called "Landuse.mpr".
However you have also tried to load "Catchment.mpa" which is a polygon map (not raster; the extension .mpa is used for polygon maps).

Solution:
Convert all your data to the ILWIS raster file format. Furthermore, for use in SMCE, all maps must have the same Georeference.

Steps:
1. Import the relevant data into ILWIS (both raster and vector).
2. Define the study-area by means of a Georeference (or decide which existing Georeference best represents the study-area).
Note: a Georeference is a property of a raster image (thus vector images do not have a Georeference).
3. Transform any raster data that does not match the study-area's Georeference, to the bounds and pixel size of this Georeference (operation "Resample").
4. Convert the vector data to the same Georeference (operation "Polygon to Raster" or "Segment to Raster" or "Point to Raster")
5. Some of the vector data may require further processing besides rasterization, in order to make sense to use it in SMCE. E.g. for a roadmap or a map with cities you would want to compute a distance-map (described "distance from roads" or "distance from cities").

About Georeferences in ILWIS:
In ILWIS, a Georeference is a file with the .grf extension. It defines the coordinate-boundaries and the pixel-size of a raster image. Multiple raster images can share a Georeference. The SMCE application even requires that all its data uses the same Georeference (because it wouldn't make sense to combine data of different study-areas).
When importing raster data (e.g. TIFF files) into ILWIS, their Georeference is also automatically imported.
If you only have vector data (polygons, lines, points), and want to use SMCE with those, then you must create a Georeference that describes your study-area (File->Create->Georeference).
Provide the boundaries of the study-area (the coordinates), the pixel-size that the rasters must have, and their Coordinate System.

Best regards,

Bas Retsios
ILWIS team

On 4/9/2016 12:51 PM, Sharmin Ara wrote:

I ma having a problem to show the data in the ILWIS viewer and in SMCE
criteria tree. I have several shape file saved in ArcMap 10.2. Now I want to
work with SMCE for my analysis. Thus I imported all shape files to ILWIS to
display. But I couldn't add those file in the criteria tree. I also
converted all shapefiles to raster in Arcmap and then tried to import in
ILWIS to do SMCE but i failed to show those. I need to solve this problem.
If anybody of you can help me would be appreciated. ILWIS.docx
<http://ilwis.forum.52north.org/file/n4025885/ILWIS.docx>

--
View this message in context: http://ilwis.forum.52north.org/Data-Display-in-SMCE-criteria-tree-tp4025885.html
Sent from the 52° North - ILWIS Community Forum mailing list archive at Nabble.com.
_______________________________________________
Ilwis mailing list
[hidden email]
http://list.52north.org/mailman/listinfo/ilwis
http://ilwis.forum.52north.org
Please respect our mailing list guidelines:
http://52north.org/resources/mailing-lists-and-forums/guidelines

_______________________________________________
Ilwis mailing list
[hidden email]
http://list.52north.org/mailman/listinfo/ilwis
http://ilwis.forum.52north.org
Please respect our mailing list guidelines:
http://52north.org/resources/mailing-lists-and-forums/guidelines

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schouwenburg

Re: Data Display in SMCE criteria tree

Yes, hydroflow has limitations with respect to filesize as it tries to do everything in memory. This means that the size of the maps usable with hydroflow is limited. I don’t know how big ( I didn’t write that application tbh) but not that big. It’s a bit difficult to predict as the amount of memory you can use for the application depends on what in practice are random factors ( I can tell you a long technical tale about memory fragmentation, but that doesn’t help).

From: Martin Kabantu [mailto:[hidden email]]
Sent: woensdag 29 maart 2017 17:50
To: Schouwenburg, M.L. (ITC) <[hidden email]>
Cc: [hidden email]
Subject: Re: [Ilwis] Data Display in SMCE criteria tree

thank

I used ILWIS 3.8.5 I managed to import the DEM, but when using fill sinks application under DEM Hydroprocessing the same problem I still there. attached are the print screen

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: +243896338622; +263782850338

[hidden email]

2017-03-29 15:37 GMT+02:00 <[hidden email]>:

Using a later version of ilwis J. Older version of Ilwis are limited in the file size they can handle. In Ilwis 3.8.5 this has been solved

From: Ilwis [mailto:[hidden email]] On Behalf Of Martin Kabantu
Sent: woensdag 29 maart 2017 14:04
To: Retsios, V. (ITC) <[hidden email]>
Cc: [hidden email]; Sharmin Ara <[hidden email]>
Subject: Re: [Ilwis] Data Display in SMCE criteria tree

Dear all

how can I solve the issue of out of memory in ILWIS 3.3.1 software, when I am working with a DEM 90m of the Congo River Basin. note that the area of the Basin is of 3.7 million km2

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: <a href="tel:0896%20338%20622" target="_blank">+243896338622; <a href="tel:+263%2078%20285%200338" target="_blank"> +263782850338

[hidden email]

2016-09-05 12:00 GMT+02:00 Bas Retsios <[hidden email]>:

Hello,

ILWIS SMCE is an application that works with raster data of a certain study-area. Therefore, to use data in the SMCE application as criteria (factors/constraints), it must be in the ILWIS raster image format (file extension .mpr).
In your screenshot I was able to distinguish that you have successfully loaded one map in SMCE called "Landuse.mpr".
However you have also tried to load "Catchment.mpa" which is a polygon map (not raster; the extension .mpa is used for polygon maps).

Solution:
Convert all your data to the ILWIS raster file format. Furthermore, for use in SMCE, all maps must have the same Georeference.

Steps:
1. Import the relevant data into ILWIS (both raster and vector).
2. Define the study-area by means of a Georeference (or decide which existing Georeference best represents the study-area).
Note: a Georeference is a property of a raster image (thus vector images do not have a Georeference).
3. Transform any raster data that does not match the study-area's Georeference, to the bounds and pixel size of this Georeference (operation "Resample").
4. Convert the vector data to the same Georeference (operation "Polygon to Raster" or "Segment to Raster" or "Point to Raster")
5. Some of the vector data may require further processing besides rasterization, in order to make sense to use it in SMCE. E.g. for a roadmap or a map with cities you would want to compute a distance-map (described "distance from roads" or "distance from cities").

About Georeferences in ILWIS:
In ILWIS, a Georeference is a file with the .grf extension. It defines the coordinate-boundaries and the pixel-size of a raster image. Multiple raster images can share a Georeference. The SMCE application even requires that all its data uses the same Georeference (because it wouldn't make sense to combine data of different study-areas).
When importing raster data (e.g. TIFF files) into ILWIS, their Georeference is also automatically imported.
If you only have vector data (polygons, lines, points), and want to use SMCE with those, then you must create a Georeference that describes your study-area (File->Create->Georeference).
Provide the boundaries of the study-area (the coordinates), the pixel-size that the rasters must have, and their Coordinate System.

Best regards,

Bas Retsios
ILWIS team

On 4/9/2016 12:51 PM, Sharmin Ara wrote:

I ma having a problem to show the data in the ILWIS viewer and in SMCE
criteria tree. I have several shape file saved in ArcMap 10.2. Now I want to
work with SMCE for my analysis. Thus I imported all shape files to ILWIS to
display. But I couldn't add those file in the criteria tree. I also
converted all shapefiles to raster in Arcmap and then tried to import in
ILWIS to do SMCE but i failed to show those. I need to solve this problem.
If anybody of you can help me would be appreciated. ILWIS.docx
<http://ilwis.forum.52north.org/file/n4025885/ILWIS.docx>

--
View this message in context: http://ilwis.forum.52north.org/Data-Display-in-SMCE-criteria-tree-tp4025885.html
Sent from the 52° North - ILWIS Community Forum mailing list archive at Nabble.com.
_______________________________________________
Ilwis mailing list
[hidden email]
http://list.52north.org/mailman/listinfo/ilwis
http://ilwis.forum.52north.org
Please respect our mailing list guidelines:
http://52north.org/resources/mailing-lists-and-forums/guidelines

_______________________________________________
Ilwis mailing list
[hidden email]
http://list.52north.org/mailman/listinfo/ilwis
http://ilwis.forum.52north.org
Please respect our mailing list guidelines:
http://52north.org/resources/mailing-lists-and-forums/guidelines

Martin Kabantu

Re: Data Display in SMCE criteria tree

please, can you try to assist whit that technical tale, because our work it stopped by this issue, the maps size is 3.7 million km2

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: +243896338622; +263782850338

[hidden email]

2017-03-30 8:43 GMT+02:00 <[hidden email]>:

Yes, hydroflow has limitations with respect to filesize as it tries to do everything in memory. This means that the size of the maps usable with hydroflow is limited. I don’t know how big ( I didn’t write that application tbh) but not that big. It’s a bit difficult to predict as the amount of memory you can use for the application depends on what in practice are random factors ( I can tell you a long technical tale about memory fragmentation, but that doesn’t help).

From: Martin Kabantu [mailto:[hidden email]]
Sent: woensdag 29 maart 2017 17:50
To: Schouwenburg, M.L. (ITC) <[hidden email]>
Cc: [hidden email]

Subject: Re: [Ilwis] Data Display in SMCE criteria tree

thank

I used ILWIS 3.8.5 I managed to import the DEM, but when using fill sinks application under DEM Hydroprocessing the same problem I still there. attached are the print screen

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: <a href="tel:0896%20338%20622" value="+243896338622" target="_blank">+243896338622; <a href="tel:+263%2078%20285%200338" value="+263782850338" target="_blank">+263782850338

[hidden email]

2017-03-29 15:37 GMT+02:00 <[hidden email]>:

Using a later version of ilwis J. Older version of Ilwis are limited in the file size they can handle. In Ilwis 3.8.5 this has been solved

From: Ilwis [mailto:[hidden email]] On Behalf Of Martin Kabantu
Sent: woensdag 29 maart 2017 14:04
To: Retsios, V. (ITC) <[hidden email]>
Cc: [hidden email]; Sharmin Ara <[hidden email]>
Subject: Re: [Ilwis] Data Display in SMCE criteria tree

Dear all

how can I solve the issue of out of memory in ILWIS 3.3.1 software, when I am working with a DEM 90m of the Congo River Basin. note that the area of the Basin is of 3.7 million km2

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: <a href="tel:0896%20338%20622" target="_blank">+243896338622; <a href="tel:+263%2078%20285%200338" target="_blank"> +263782850338

[hidden email]

2016-09-05 12:00 GMT+02:00 Bas Retsios <[hidden email]>:

Hello,

ILWIS SMCE is an application that works with raster data of a certain study-area. Therefore, to use data in the SMCE application as criteria (factors/constraints), it must be in the ILWIS raster image format (file extension .mpr).
In your screenshot I was able to distinguish that you have successfully loaded one map in SMCE called "Landuse.mpr".
However you have also tried to load "Catchment.mpa" which is a polygon map (not raster; the extension .mpa is used for polygon maps).

Solution:
Convert all your data to the ILWIS raster file format. Furthermore, for use in SMCE, all maps must have the same Georeference.

Steps:
1. Import the relevant data into ILWIS (both raster and vector).
2. Define the study-area by means of a Georeference (or decide which existing Georeference best represents the study-area).
Note: a Georeference is a property of a raster image (thus vector images do not have a Georeference).
3. Transform any raster data that does not match the study-area's Georeference, to the bounds and pixel size of this Georeference (operation "Resample").
4. Convert the vector data to the same Georeference (operation "Polygon to Raster" or "Segment to Raster" or "Point to Raster")
5. Some of the vector data may require further processing besides rasterization, in order to make sense to use it in SMCE. E.g. for a roadmap or a map with cities you would want to compute a distance-map (described "distance from roads" or "distance from cities").

About Georeferences in ILWIS:
In ILWIS, a Georeference is a file with the .grf extension. It defines the coordinate-boundaries and the pixel-size of a raster image. Multiple raster images can share a Georeference. The SMCE application even requires that all its data uses the same Georeference (because it wouldn't make sense to combine data of different study-areas).
When importing raster data (e.g. TIFF files) into ILWIS, their Georeference is also automatically imported.
If you only have vector data (polygons, lines, points), and want to use SMCE with those, then you must create a Georeference that describes your study-area (File->Create->Georeference).
Provide the boundaries of the study-area (the coordinates), the pixel-size that the rasters must have, and their Coordinate System.

Best regards,

Bas Retsios
ILWIS team

On 4/9/2016 12:51 PM, Sharmin Ara wrote:

I ma having a problem to show the data in the ILWIS viewer and in SMCE
criteria tree. I have several shape file saved in ArcMap 10.2. Now I want to
work with SMCE for my analysis. Thus I imported all shape files to ILWIS to
display. But I couldn't add those file in the criteria tree. I also
converted all shapefiles to raster in Arcmap and then tried to import in
ILWIS to do SMCE but i failed to show those. I need to solve this problem.
If anybody of you can help me would be appreciated. ILWIS.docx
<http://ilwis.forum.52north.org/file/n4025885/ILWIS.docx>

--
View this message in context: http://ilwis.forum.52north.org/Data-Display-in-SMCE-criteria-tree-tp4025885.html
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schouwenburg

Re: Data Display in SMCE criteria tree

If you have lets say 8 Gb of memory in your computer it doesn’t mean that your maps can take max 8 gb of memory. If you visualize memory as a long string of bytes you will see that a computer allocates memory at places in that long string were it is available. That can be any place in that long string. If it is released, there is at that place a block of free memory. But other blocks around it are occupied by other allocations from other software(or the same software). In practice this leads to fragmentation of memory. The operation system tries to clean this up and move blocks together but this happens at unpredictable moments so you can not count on it.

Hydroflow is imited, so you have to reduce the map in size. I don’t see another solution

From: Martin Kabantu [mailto:[hidden email]]
Sent: donderdag 30 maart 2017 10:14
To: Schouwenburg, M.L. (ITC) <[hidden email]>
Cc: [hidden email]
Subject: Re: [Ilwis] Data Display in SMCE criteria tree

please, can you try to assist whit that technical tale, because our work it stopped by this issue, the maps size is 3.7 million km2

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: +243896338622; +263782850338

[hidden email]

2017-03-30 8:43 GMT+02:00 <[hidden email]>:

Yes, hydroflow has limitations with respect to filesize as it tries to do everything in memory. This means that the size of the maps usable with hydroflow is limited. I don’t know how big ( I didn’t write that application tbh) but not that big. It’s a bit difficult to predict as the amount of memory you can use for the application depends on what in practice are random factors ( I can tell you a long technical tale about memory fragmentation, but that doesn’t help).

From: Martin Kabantu [mailto:[hidden email]]
Sent: woensdag 29 maart 2017 17:50
To: Schouwenburg, M.L. (ITC) <[hidden email]>
Cc: [hidden email]

Subject: Re: [Ilwis] Data Display in SMCE criteria tree

thank

I used ILWIS 3.8.5 I managed to import the DEM, but when using fill sinks application under DEM Hydroprocessing the same problem I still there. attached are the print screen

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: <a href="tel:0896%20338%20622" target="_blank">+243896338622; <a href="tel:+263%2078%20285%200338" target="_blank"> +263782850338

[hidden email]

2017-03-29 15:37 GMT+02:00 <[hidden email]>:

Using a later version of ilwis J. Older version of Ilwis are limited in the file size they can handle. In Ilwis 3.8.5 this has been solved

From: Ilwis [mailto:[hidden email]] On Behalf Of Martin Kabantu
Sent: woensdag 29 maart 2017 14:04
To: Retsios, V. (ITC) <[hidden email]>
Cc: [hidden email]; Sharmin Ara <[hidden email]>
Subject: Re: [Ilwis] Data Display in SMCE criteria tree

Dear all

how can I solve the issue of out of memory in ILWIS 3.3.1 software, when I am working with a DEM 90m of the Congo River Basin. note that the area of the Basin is of 3.7 million km2

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: <a href="tel:0896%20338%20622" target="_blank">+243896338622; <a href="tel:+263%2078%20285%200338" target="_blank"> +263782850338

[hidden email]

2016-09-05 12:00 GMT+02:00 Bas Retsios <[hidden email]>:

Hello,

ILWIS SMCE is an application that works with raster data of a certain study-area. Therefore, to use data in the SMCE application as criteria (factors/constraints), it must be in the ILWIS raster image format (file extension .mpr).
In your screenshot I was able to distinguish that you have successfully loaded one map in SMCE called "Landuse.mpr".
However you have also tried to load "Catchment.mpa" which is a polygon map (not raster; the extension .mpa is used for polygon maps).

Solution:
Convert all your data to the ILWIS raster file format. Furthermore, for use in SMCE, all maps must have the same Georeference.

Steps:
1. Import the relevant data into ILWIS (both raster and vector).
2. Define the study-area by means of a Georeference (or decide which existing Georeference best represents the study-area).
Note: a Georeference is a property of a raster image (thus vector images do not have a Georeference).
3. Transform any raster data that does not match the study-area's Georeference, to the bounds and pixel size of this Georeference (operation "Resample").
4. Convert the vector data to the same Georeference (operation "Polygon to Raster" or "Segment to Raster" or "Point to Raster")
5. Some of the vector data may require further processing besides rasterization, in order to make sense to use it in SMCE. E.g. for a roadmap or a map with cities you would want to compute a distance-map (described "distance from roads" or "distance from cities").

About Georeferences in ILWIS:
In ILWIS, a Georeference is a file with the .grf extension. It defines the coordinate-boundaries and the pixel-size of a raster image. Multiple raster images can share a Georeference. The SMCE application even requires that all its data uses the same Georeference (because it wouldn't make sense to combine data of different study-areas).
When importing raster data (e.g. TIFF files) into ILWIS, their Georeference is also automatically imported.
If you only have vector data (polygons, lines, points), and want to use SMCE with those, then you must create a Georeference that describes your study-area (File->Create->Georeference).
Provide the boundaries of the study-area (the coordinates), the pixel-size that the rasters must have, and their Coordinate System.

Best regards,

Bas Retsios
ILWIS team

On 4/9/2016 12:51 PM, Sharmin Ara wrote:

I ma having a problem to show the data in the ILWIS viewer and in SMCE
criteria tree. I have several shape file saved in ArcMap 10.2. Now I want to
work with SMCE for my analysis. Thus I imported all shape files to ILWIS to
display. But I couldn't add those file in the criteria tree. I also
converted all shapefiles to raster in Arcmap and then tried to import in
ILWIS to do SMCE but i failed to show those. I need to solve this problem.
If anybody of you can help me would be appreciated. ILWIS.docx
<http://ilwis.forum.52north.org/file/n4025885/ILWIS.docx>

--
View this message in context: http://ilwis.forum.52north.org/Data-Display-in-SMCE-criteria-tree-tp4025885.html
Sent from the 52° North - ILWIS Community Forum mailing list archive at Nabble.com.
_______________________________________________
Ilwis mailing list
[hidden email]
http://list.52north.org/mailman/listinfo/ilwis
http://ilwis.forum.52north.org
Please respect our mailing list guidelines:
http://52north.org/resources/mailing-lists-and-forums/guidelines

_______________________________________________
Ilwis mailing list
[hidden email]
http://list.52north.org/mailman/listinfo/ilwis
http://ilwis.forum.52north.org
Please respect our mailing list guidelines:
http://52north.org/resources/mailing-lists-and-forums/guidelines

Martin Kabantu

Re: Data Display in SMCE criteria tree

thx, let me try I will come back to you

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: +243896338622; +263782850338

[hidden email]

2017-03-30 10:25 GMT+02:00 <[hidden email]>:

If you have lets say 8 Gb of memory in your computer it doesn’t mean that your maps can take max 8 gb of memory. If you visualize memory as a long string of bytes you will see that a computer allocates memory at places in that long string were it is available. That can be any place in that long string. If it is released, there is at that place a block of free memory. But other blocks around it are occupied by other allocations from other software(or the same software). In practice this leads to fragmentation of memory. The operation system tries to clean this up and move blocks together but this happens at unpredictable moments so you can not count on it.

Hydroflow is imited, so you have to reduce the map in size. I don’t see another solution

From: Martin Kabantu [mailto:[hidden email]]
Sent: donderdag 30 maart 2017 10:14

To: Schouwenburg, M.L. (ITC) <[hidden email]>
Cc: [hidden email]
Subject: Re: [Ilwis] Data Display in SMCE criteria tree

please, can you try to assist whit that technical tale, because our work it stopped by this issue, the maps size is 3.7 million km2

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: <a href="tel:0896%20338%20622" value="+243896338622" target="_blank">+243896338622; <a href="tel:+263%2078%20285%200338" value="+263782850338" target="_blank">+263782850338

[hidden email]

2017-03-30 8:43 GMT+02:00 <[hidden email]>:

Yes, hydroflow has limitations with respect to filesize as it tries to do everything in memory. This means that the size of the maps usable with hydroflow is limited. I don’t know how big ( I didn’t write that application tbh) but not that big. It’s a bit difficult to predict as the amount of memory you can use for the application depends on what in practice are random factors ( I can tell you a long technical tale about memory fragmentation, but that doesn’t help).

From: Martin Kabantu [mailto:[hidden email]]
Sent: woensdag 29 maart 2017 17:50
To: Schouwenburg, M.L. (ITC) <[hidden email]>
Cc: [hidden email]

Subject: Re: [Ilwis] Data Display in SMCE criteria tree

thank

I used ILWIS 3.8.5 I managed to import the DEM, but when using fill sinks application under DEM Hydroprocessing the same problem I still there. attached are the print screen

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: <a href="tel:0896%20338%20622" target="_blank">+243896338622; <a href="tel:+263%2078%20285%200338" target="_blank"> +263782850338

[hidden email]

2017-03-29 15:37 GMT+02:00 <[hidden email]>:

Using a later version of ilwis J. Older version of Ilwis are limited in the file size they can handle. In Ilwis 3.8.5 this has been solved

From: Ilwis [mailto:[hidden email]] On Behalf Of Martin Kabantu
Sent: woensdag 29 maart 2017 14:04
To: Retsios, V. (ITC) <[hidden email]>
Cc: [hidden email]; Sharmin Ara <[hidden email]>
Subject: Re: [Ilwis] Data Display in SMCE criteria tree

Dear all

how can I solve the issue of out of memory in ILWIS 3.3.1 software, when I am working with a DEM 90m of the Congo River Basin. note that the area of the Basin is of 3.7 million km2

Martin KABANTU

MSc in IWRM

GIS and Earth Observation Expert

Researcher at CB-HYDRONET/University of Kinshasa;

Tel: <a href="tel:0896%20338%20622" target="_blank">+243896338622; <a href="tel:+263%2078%20285%200338" target="_blank"> +263782850338

[hidden email]

2016-09-05 12:00 GMT+02:00 Bas Retsios <[hidden email]>:

Hello,

ILWIS SMCE is an application that works with raster data of a certain study-area. Therefore, to use data in the SMCE application as criteria (factors/constraints), it must be in the ILWIS raster image format (file extension .mpr).
In your screenshot I was able to distinguish that you have successfully loaded one map in SMCE called "Landuse.mpr".
However you have also tried to load "Catchment.mpa" which is a polygon map (not raster; the extension .mpa is used for polygon maps).

Solution:
Convert all your data to the ILWIS raster file format. Furthermore, for use in SMCE, all maps must have the same Georeference.

Steps:
1. Import the relevant data into ILWIS (both raster and vector).
2. Define the study-area by means of a Georeference (or decide which existing Georeference best represents the study-area).
Note: a Georeference is a property of a raster image (thus vector images do not have a Georeference).
3. Transform any raster data that does not match the study-area's Georeference, to the bounds and pixel size of this Georeference (operation "Resample").
4. Convert the vector data to the same Georeference (operation "Polygon to Raster" or "Segment to Raster" or "Point to Raster")
5. Some of the vector data may require further processing besides rasterization, in order to make sense to use it in SMCE. E.g. for a roadmap or a map with cities you would want to compute a distance-map (described "distance from roads" or "distance from cities").

About Georeferences in ILWIS:
In ILWIS, a Georeference is a file with the .grf extension. It defines the coordinate-boundaries and the pixel-size of a raster image. Multiple raster images can share a Georeference. The SMCE application even requires that all its data uses the same Georeference (because it wouldn't make sense to combine data of different study-areas).
When importing raster data (e.g. TIFF files) into ILWIS, their Georeference is also automatically imported.
If you only have vector data (polygons, lines, points), and want to use SMCE with those, then you must create a Georeference that describes your study-area (File->Create->Georeference).
Provide the boundaries of the study-area (the coordinates), the pixel-size that the rasters must have, and their Coordinate System.

Best regards,

Bas Retsios
ILWIS team

On 4/9/2016 12:51 PM, Sharmin Ara wrote:

I ma having a problem to show the data in the ILWIS viewer and in SMCE
criteria tree. I have several shape file saved in ArcMap 10.2. Now I want to
work with SMCE for my analysis. Thus I imported all shape files to ILWIS to
display. But I couldn't add those file in the criteria tree. I also
converted all shapefiles to raster in Arcmap and then tried to import in
ILWIS to do SMCE but i failed to show those. I need to solve this problem.
If anybody of you can help me would be appreciated. ILWIS.docx
<http://ilwis.forum.52north.org/file/n4025885/ILWIS.docx>

--
View this message in context: http://ilwis.forum.52north.org/Data-Display-in-SMCE-criteria-tree-tp4025885.html
Sent from the 52° North - ILWIS Community Forum mailing list archive at Nabble.com.
_______________________________________________
Ilwis mailing list
[hidden email]
http://list.52north.org/mailman/listinfo/ilwis
http://ilwis.forum.52north.org
Please respect our mailing list guidelines:
http://52north.org/resources/mailing-lists-and-forums/guidelines

_______________________________________________
Ilwis mailing list
[hidden email]
http://list.52north.org/mailman/listinfo/ilwis
http://ilwis.forum.52north.org
Please respect our mailing list guidelines:
http://52north.org/resources/mailing-lists-and-forums/guidelines