[Geoserver-users] WFS-T Mapbuilder Tutorial uncertainty

Hi,
I am running tomcat 6, with GeoServer 1.5.0-rc2 and Mapbuilder 1.0.1. I am
new to geoserver and mapbuilder. I have no problems getting the wms
tutorial working, or adding new external data. But when i try the WFS
tutorial to add my own WFS data from GeoServer, the data never draws. Is
there any secret steps not mentioned in the tutorial, that are required,
that a new user to this technology would miss, as it is perhaps assumed.
It seems most people are generating wms solutions with not much information
for WFS.
Help would be much appreciated.
thanks
Kent
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View this message in context: http://www.nabble.com/WFS-T-Mapbuilder-Tutorial-uncertainty-tf3367031.html#a9367832
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Well, this is really more a question for the MapBuilder list. We just include it as a demo of what is possible. For creating your own application we recommend downloading the latest Mapbuilder and setting it up as per their instructions. For WFS-T stuff I believe the tricky thing is getting all the xml namespaces right.

If you want to live on the bleeding edge, check out http://openlayers.org on their svn version, as they're merging a lot of really nice WFS-T code in this week.

best regards,

Chris

kentburley wrote:

Hi,
I am running tomcat 6, with GeoServer 1.5.0-rc2 and Mapbuilder 1.0.1. I am
new to geoserver and mapbuilder. I have no problems getting the wms
tutorial working, or adding new external data. But when i try the WFS
tutorial to add my own WFS data from GeoServer, the data never draws. Is
there any secret steps not mentioned in the tutorial, that are required,
that a new user to this technology would miss, as it is perhaps assumed. It seems most people are generating wms solutions with not much information
for WFS.
Help would be much appreciated. thanks
Kent

--
Chris Holmes
The Open Planning Project
http://topp.openplans.org

Can you check the GeoServer logs and see if there are any errors?
I think I have seen this before but I can't remember what caused it.

Brent Owens
(The Open Planning Project)

kentburley wrote:

Hi,
I am running tomcat 6, with GeoServer 1.5.0-rc2 and Mapbuilder 1.0.1. I am
new to geoserver and mapbuilder. I have no problems getting the wms
tutorial working, or adding new external data. But when i try the WFS
tutorial to add my own WFS data from GeoServer, the data never draws. Is
there any secret steps not mentioned in the tutorial, that are required,
that a new user to this technology would miss, as it is perhaps assumed. It seems most people are generating wms solutions with not much information
for WFS.
Help would be much appreciated. thanks
Kent
  

I have checked the logs and cant find any issues. Perhaps it is a namespace
issue.

i failed to mention that i am wanting to create an SVG application that
doesn't require transaction. Is Mapbuilder the best client to use ontop of
Geoserver for this? I cant find any others that appear to handle SVG from
Geoserver. Does geoserver handle the transition from GML to SVG, or do i
need another app sitting between geoserver and mapbuilder to do this.

Thanks.

Brent Owens wrote:

Can you check the GeoServer logs and see if there are any errors?
I think I have seen this before but I can't remember what caused it.

Brent Owens
(The Open Planning Project)

kentburley wrote:

Hi,
I am running tomcat 6, with GeoServer 1.5.0-rc2 and Mapbuilder 1.0.1. I
am
new to geoserver and mapbuilder. I have no problems getting the wms
tutorial working, or adding new external data. But when i try the WFS
tutorial to add my own WFS data from GeoServer, the data never draws. Is
there any secret steps not mentioned in the tutorial, that are required,
that a new user to this technology would miss, as it is perhaps assumed.
It seems most people are generating wms solutions with not much
information
for WFS.
Help would be much appreciated.
thanks
Kent
  
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I don't know much about SVG and what clients can handle it.

GeoServer will return two versions of SVG, and it does so more efficiently than a GML -> SVG transition, since instead we go straight from the feature model in to the SVG output, skipping the GML computation step.

We have two SVG outputs, neither of which are great - they sort of do two halfs of the ideal. The first streams out, so is very fast, but it doesn't take into account any styling information. If you're looking for something that's like an SVG version of the GML it's good since it's fast. The other does full rendering according to the styling rules. But it's slow, since does it in a round about way - goes from vector data to Java2d and then back to the vector SVG output.

The best performing way is probably to use the streaming SVG output, and then style it in your client, I know at least one application that's been built that way.

best regards,

Chris

kentburley wrote:

I have checked the logs and cant find any issues. Perhaps it is a namespace
issue.

i failed to mention that i am wanting to create an SVG application that
doesn't require transaction. Is Mapbuilder the best client to use ontop of
Geoserver for this? I cant find any others that appear to handle SVG from
Geoserver. Does geoserver handle the transition from GML to SVG, or do i
need another app sitting between geoserver and mapbuilder to do this.

Thanks.

Brent Owens wrote:

Can you check the GeoServer logs and see if there are any errors?
I think I have seen this before but I can't remember what caused it.

Brent Owens
(The Open Planning Project)

kentburley wrote:

Hi,
I am running tomcat 6, with GeoServer 1.5.0-rc2 and Mapbuilder 1.0.1. I
am
new to geoserver and mapbuilder. I have no problems getting the wms
tutorial working, or adding new external data. But when i try the WFS
tutorial to add my own WFS data from GeoServer, the data never draws. Is
there any secret steps not mentioned in the tutorial, that are required,
that a new user to this technology would miss, as it is perhaps assumed. It seems most people are generating wms solutions with not much
information
for WFS.
Help would be much appreciated. thanks
Kent
  

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Hi,
thanks for your help. It appears to me that your SVG output is generating
on the WMS. Correct me if I'm wrong but does this mean that this is a
raster format? I would have thought that for true SVG, it would need to be
generated from a WFS, so that it is vector data?

The streaming solution with the client rendering is of excellent value to
myself. But I do need true SVG so that my client is outputting vector data.

Also, are you able to provide a link to the app you speak of?

Thanks.

Chris Holmes wrote:

I don't know much about SVG and what clients can handle it.

GeoServer will return two versions of SVG, and it does so more
efficiently than a GML -> SVG transition, since instead we go straight
from the feature model in to the SVG output, skipping the GML
computation step.

We have two SVG outputs, neither of which are great - they sort of do
two halfs of the ideal. The first streams out, so is very fast, but it
doesn't take into account any styling information. If you're looking
for something that's like an SVG version of the GML it's good since it's
fast. The other does full rendering according to the styling rules.
But it's slow, since does it in a round about way - goes from vector
data to Java2d and then back to the vector SVG output.

The best performing way is probably to use the streaming SVG output, and
then style it in your client, I know at least one application that's
been built that way.

best regards,

Chris

kentburley wrote:

I have checked the logs and cant find any issues. Perhaps it is a
namespace
issue.

i failed to mention that i am wanting to create an SVG application that
doesn't require transaction. Is Mapbuilder the best client to use ontop
of
Geoserver for this? I cant find any others that appear to handle SVG
from
Geoserver. Does geoserver handle the transition from GML to SVG, or do i
need another app sitting between geoserver and mapbuilder to do this.

Thanks.

Brent Owens wrote:

Can you check the GeoServer logs and see if there are any errors?
I think I have seen this before but I can't remember what caused it.

Brent Owens
(The Open Planning Project)

kentburley wrote:

Hi,
I am running tomcat 6, with GeoServer 1.5.0-rc2 and Mapbuilder 1.0.1. I
am
new to geoserver and mapbuilder. I have no problems getting the wms
tutorial working, or adding new external data. But when i try the WFS
tutorial to add my own WFS data from GeoServer, the data never draws.
Is
there any secret steps not mentioned in the tutorial, that are
required,
that a new user to this technology would miss, as it is perhaps
assumed.
It seems most people are generating wms solutions with not much
information
for WFS.
Help would be much appreciated.
thanks
Kent
  

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http://topp.openplans.org

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org:The Open Planning Project
adr:;;349 W. 12th Street, #3;New York;NY;10014;USA
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kentburley ha scritto:

Hi, thanks for your help. It appears to me that your SVG output is generating
on the WMS. Correct me if I'm wrong but does this mean that this is a
raster format? I would have thought that for true SVG, it would need to be
generated from a WFS, so that it is vector data?

No, no need. It is true that by default WMS generates raster and WFS not only vector, but full data (with attributes), but format choice is left
open ended.

What really distinguish them is a distinction between crude data (WFS) and rendered/colored one (WMS). In our case SVG is considered to be
a WMS format because it does not contain real data, but only its representation (the fact that it's vector instead of raster is a detail).

Cheers
Andrea

I am trying to stylize an interstate. In my SDL I have a rule for the LineSymbolizer and then I have a rule to place the Interstate Shields as a graphic image onto the roadway. The SLD is:

<?xml version="1.0" encoding="UTF-8"?>

Other Roadway Centerlines #000000 5 butt miter 0.0 #5A6EFF 3 butt miter 0.0 Roadway - Shield I-64 rte_nbr 64 0 1200000 t image/png 1.0 24 Roadway - Shield I-264 rte_nbr 264 0 1200000 image/png 1.0 24 Roadway - Shield I-464 rte_nbr 464 0 1200000 image/png 1.0 24 Roadway - Shield I-564 rte_nbr 564 0 1200000 image/png 1.0 24 Roadway - Shield I-664 rte_nbr 664 0 1200000 image/png 1.0 24

The problem I am having is that the graphics seem to be being place at the center of the feature shapes and not on the line itself. I’ve attached a sample screenshot. Any idea what I am doing wrong? Any other thoughts on how to approach this problem? Thanks in advance,

David Robison

wms.png

kentburley wrote:

Hi, thanks for your help. It appears to me that your SVG output is generating
on the WMS. Correct me if I'm wrong but does this mean that this is a
raster format? I would have thought that for true SVG, it would need to be
generated from a WFS, so that it is vector data?

Andrea answered this, another example of a vector output through WMS is KML. With both SVG you can output from the WFS, but you will get very boring looking results, since the WFS can not say anything about what it should look like, it only gives the data.

The streaming solution with the client rendering is of excellent value to
myself. But I do need true SVG so that my client is outputting vector data.

Yeah, if you're just thinking of getting raw vector data but as SVG then the streaming output from the WMS should be good enough. That maybe should be as WFS, since it doesn't have much style information. But it currently lacks the ability to respond to the particulars of how the attributes are returned with it. It'd be a couple days of work to make it true WFS output, but things should work fine for you as is.

Also, are you able to provide a link to the app you speak of?

http://docs.codehaus.org/download/attachments/41553/magister_01.jpg is a screen shot. I'm not sure if the app is live, I can get you in contact with the author though, he's an active member of the community.

best regards,

Chris

Thanks.

Chris Holmes wrote:

I don't know much about SVG and what clients can handle it.

GeoServer will return two versions of SVG, and it does so more efficiently than a GML -> SVG transition, since instead we go straight from the feature model in to the SVG output, skipping the GML computation step.

We have two SVG outputs, neither of which are great - they sort of do two halfs of the ideal. The first streams out, so is very fast, but it doesn't take into account any styling information. If you're looking for something that's like an SVG version of the GML it's good since it's fast. The other does full rendering according to the styling rules. But it's slow, since does it in a round about way - goes from vector data to Java2d and then back to the vector SVG output.

The best performing way is probably to use the streaming SVG output, and then style it in your client, I know at least one application that's been built that way.

best regards,

Chris

kentburley wrote:

I have checked the logs and cant find any issues. Perhaps it is a
namespace
issue.

i failed to mention that i am wanting to create an SVG application that
doesn't require transaction. Is Mapbuilder the best client to use ontop
of
Geoserver for this? I cant find any others that appear to handle SVG
from
Geoserver. Does geoserver handle the transition from GML to SVG, or do i
need another app sitting between geoserver and mapbuilder to do this.

Thanks.

Brent Owens wrote:

Can you check the GeoServer logs and see if there are any errors?
I think I have seen this before but I can't remember what caused it.

Brent Owens
(The Open Planning Project)

kentburley wrote:

Hi,
I am running tomcat 6, with GeoServer 1.5.0-rc2 and Mapbuilder 1.0.1. I
am
new to geoserver and mapbuilder. I have no problems getting the wms
tutorial working, or adding new external data. But when i try the WFS
tutorial to add my own WFS data from GeoServer, the data never draws. Is
there any secret steps not mentioned in the tutorial, that are
required,
that a new user to this technology would miss, as it is perhaps
assumed. It seems most people are generating wms solutions with not much
information
for WFS.
Help would be much appreciated. thanks
Kent
  

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http://topp.openplans.org

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Hi,
I have loaded a shapefile and set the output as SVG fast in Geoserver. When
i do a call to request=GetCapabilities, it tells me this is format=png.
When i request a map with Getmap, format=image/svg. Svg appears to return
correctly. When i use mapbuilder to reference this data layer, it will not
accept format=image/svg, as it simply doesn't display the data, but if I use
format=image/png it will display it.
Even with my WMS set to SVG, is there data types that effect the output? I
was of the understanding that i can call the data in any format from
mapbuilder and it would render it. Does someone have some input regarding
the WMS output outlined above?
Thanks very much
Kent

Chris Holmes wrote:

kentburley wrote:

Hi,
thanks for your help. It appears to me that your SVG output is
generating
on the WMS. Correct me if I'm wrong but does this mean that this is a
raster format? I would have thought that for true SVG, it would need to
be
generated from a WFS, so that it is vector data?

Andrea answered this, another example of a vector output through WMS is
KML. With both SVG you can output from the WFS, but you will get very
boring looking results, since the WFS can not say anything about what it
should look like, it only gives the data.

The streaming solution with the client rendering is of excellent value to
myself. But I do need true SVG so that my client is outputting vector
data.

Yeah, if you're just thinking of getting raw vector data but as SVG then
the streaming output from the WMS should be good enough. That maybe
should be as WFS, since it doesn't have much style information. But it
currently lacks the ability to respond to the particulars of how the
attributes are returned with it. It'd be a couple days of work to make
it true WFS output, but things should work fine for you as is.

Also, are you able to provide a link to the app you speak of?

http://docs.codehaus.org/download/attachments/41553/magister_01.jpg is a
screen shot. I'm not sure if the app is live, I can get you in contact
with the author though, he's an active member of the community.

best regards,

Chris

Thanks.

Chris Holmes wrote:

I don't know much about SVG and what clients can handle it.

GeoServer will return two versions of SVG, and it does so more
efficiently than a GML -> SVG transition, since instead we go straight
from the feature model in to the SVG output, skipping the GML
computation step.

We have two SVG outputs, neither of which are great - they sort of do
two halfs of the ideal. The first streams out, so is very fast, but it
doesn't take into account any styling information. If you're looking
for something that's like an SVG version of the GML it's good since it's
fast. The other does full rendering according to the styling rules.
But it's slow, since does it in a round about way - goes from vector
data to Java2d and then back to the vector SVG output.

The best performing way is probably to use the streaming SVG output, and
then style it in your client, I know at least one application that's
been built that way.

best regards,

Chris

kentburley wrote:

I have checked the logs and cant find any issues. Perhaps it is a
namespace
issue.

i failed to mention that i am wanting to create an SVG application that
doesn't require transaction. Is Mapbuilder the best client to use
ontop
of
Geoserver for this? I cant find any others that appear to handle SVG
from
Geoserver. Does geoserver handle the transition from GML to SVG, or do
i
need another app sitting between geoserver and mapbuilder to do this.

Thanks.

Brent Owens wrote:

Can you check the GeoServer logs and see if there are any errors?
I think I have seen this before but I can't remember what caused it.

Brent Owens
(The Open Planning Project)

kentburley wrote:

Hi,
I am running tomcat 6, with GeoServer 1.5.0-rc2 and Mapbuilder 1.0.1.
I
am
new to geoserver and mapbuilder. I have no problems getting the wms
tutorial working, or adding new external data. But when i try the
WFS
tutorial to add my own WFS data from GeoServer, the data never draws.
Is
there any secret steps not mentioned in the tutorial, that are
required,
that a new user to this technology would miss, as it is perhaps
assumed.
It seems most people are generating wms solutions with not much
information
for WFS.
Help would be much appreciated.
thanks
Kent
  

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http://topp.openplans.org

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I'm not sure how well Mapbuilder handles SVG, especially in a WMS request as a layer. However it should handle other raster image results such as GIF and JPEG. SVG is a vector format so it will have to treat it differently than a simple image. Maybe fire off an email to the mapbuilder list and see what they think.

cheers,

Brent Owens
(The Open Planning Project)

kentburley wrote:

Hi,
I have loaded a shapefile and set the output as SVG fast in Geoserver. When
i do a call to request=GetCapabilities, it tells me this is format=png. When i request a map with Getmap, format=image/svg. Svg appears to return
correctly. When i use mapbuilder to reference this data layer, it will not
accept format=image/svg, as it simply doesn't display the data, but if I use
format=image/png it will display it. Even with my WMS set to SVG, is there data types that effect the output? I
was of the understanding that i can call the data in any format from
mapbuilder and it would render it. Does someone have some input regarding
the WMS output outlined above?
Thanks very much
Kent

Chris Holmes wrote:
  

kentburley wrote:
    

Hi, thanks for your help. It appears to me that your SVG output is
generating
on the WMS. Correct me if I'm wrong but does this mean that this is a
raster format? I would have thought that for true SVG, it would need to
be
generated from a WFS, so that it is vector data?
      

Andrea answered this, another example of a vector output through WMS is KML. With both SVG you can output from the WFS, but you will get very boring looking results, since the WFS can not say anything about what it should look like, it only gives the data.

The streaming solution with the client rendering is of excellent value to
myself. But I do need true SVG so that my client is outputting vector
data.
      

Yeah, if you're just thinking of getting raw vector data but as SVG then the streaming output from the WMS should be good enough. That maybe should be as WFS, since it doesn't have much style information. But it currently lacks the ability to respond to the particulars of how the attributes are returned with it. It'd be a couple days of work to make it true WFS output, but things should work fine for you as is.

Also, are you able to provide a link to the app you speak of?
      

http://docs.codehaus.org/download/attachments/41553/magister_01.jpg is a screen shot. I'm not sure if the app is live, I can get you in contact with the author though, he's an active member of the community.

best regards,

Chris

Thanks.

Chris Holmes wrote:
      

I don't know much about SVG and what clients can handle it.

GeoServer will return two versions of SVG, and it does so more efficiently than a GML -> SVG transition, since instead we go straight from the feature model in to the SVG output, skipping the GML computation step.

We have two SVG outputs, neither of which are great - they sort of do two halfs of the ideal. The first streams out, so is very fast, but it doesn't take into account any styling information. If you're looking for something that's like an SVG version of the GML it's good since it's fast. The other does full rendering according to the styling rules. But it's slow, since does it in a round about way - goes from vector data to Java2d and then back to the vector SVG output.

The best performing way is probably to use the streaming SVG output, and then style it in your client, I know at least one application that's been built that way.

best regards,

Chris

kentburley wrote:
        

I have checked the logs and cant find any issues. Perhaps it is a
namespace
issue.

i failed to mention that i am wanting to create an SVG application that
doesn't require transaction. Is Mapbuilder the best client to use
ontop
of
Geoserver for this? I cant find any others that appear to handle SVG
from
Geoserver. Does geoserver handle the transition from GML to SVG, or do
i
need another app sitting between geoserver and mapbuilder to do this.

Thanks.

Brent Owens wrote:
          

Can you check the GeoServer logs and see if there are any errors?
I think I have seen this before but I can't remember what caused it.

Brent Owens
(The Open Planning Project)

kentburley wrote:
            

Hi,
I am running tomcat 6, with GeoServer 1.5.0-rc2 and Mapbuilder 1.0.1.
I
am
new to geoserver and mapbuilder. I have no problems getting the wms
tutorial working, or adding new external data. But when i try the
WFS
tutorial to add my own WFS data from GeoServer, the data never draws. Is
there any secret steps not mentioned in the tutorial, that are
required,
that a new user to this technology would miss, as it is perhaps
assumed. It seems most people are generating wms solutions with not much
information
for WFS.
Help would be much appreciated. thanks
Kent
  

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