GeoTools

Measured Shapefiles

Details

  • Type: Improvement Improvement
  • Status: Open Open
  • Priority: Major Major
  • Resolution: Unresolved
  • Affects Version/s: 2.1.M0, 2.2-RC3
  • Fix Version/s: 2.7.6
  • Component/s: shapefile plugin
  • Labels:
    None
  • Environment:
    GeoTools 2

Description

I have made some modifications to the shapefile code to support measured shapefiles. This implementation stores the measures as a new attribute named "the_meas" simular to the attribute "the_geom". I also created a new java class named Measures which is the type for the the_meas attribute. When reading a measured shapefiles I read the min, max, and measures for each point and store them in a Measures class. This is then attached to the data as the the_meas attribute. The files affected include:

ShapeFileDatasource.java - to include the the_meas attribute.
Measures.java - new.
ShapeType.java - isMeasuredType function.
ShapeFileReader.java - to read the measures.
ShapeHandler.java - getMeasures function
MultiLinehandler.java - dito
MultiPointHandler.java - dito
PointHandler.java - dito
PolygonHandler.java - dito

Activity

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David R Robison added a comment -
Updated files
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David R Robison added a comment - Updated files
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David R Robison added a comment -
Just wondering on the status of this issue. Are there any plans to include these modifications in a future up-coming release? Thanks, David Robison
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David R Robison added a comment - Just wondering on the status of this issue. Are there any plans to include these modifications in a future up-coming release? Thanks, David Robison
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David R Robison added a comment -
Updated implementation of Measured shapefiles
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David R Robison added a comment - Updated implementation of Measured shapefiles
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David R Robison added a comment -
I would greatly appreciate the incorporation of these updates in a future release. I use GeoTools and need to access the measurements in measured shapefiles. I've attached the modiciations to the shapefile plugin neccessary to handle measured shapefiles. Let me know if there is a problem with this. Thanks, David Robision
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David R Robison added a comment - I would greatly appreciate the incorporation of these updates in a future release. I use GeoTools and need to access the measurements in measured shapefiles. I've attached the modiciations to the shapefile plugin neccessary to handle measured shapefiles. Let me know if there is a problem with this. Thanks, David Robision
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Peter Plumber added a comment -
Hi ,

I would also greatly appreciate to see measured shapefiles being supported by GeoTools.

to David R Robison: the updated.zip attached seems not to be fully compatible with the current release of GeoTools (2.3.0).
do you have a updated your classes for the changes and if so could you please post them.

thanks a lot

Peter
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Peter Plumber added a comment - Hi , I would also greatly appreciate to see measured shapefiles being supported by GeoTools. to David R Robison: the updated.zip attached seems not to be fully compatible with the current release of GeoTools (2.3.0). do you have a updated your classes for the changes and if so could you please post them. thanks a lot Peter
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Jody Garnett added a comment -
David and Peter - if you want to update the code for 2.4.x we have had a policy change in GeoTools. You can set up your own "unsupported" module to work on this problem, and when you have the needed amount of test coverage (and some user docs) it will be made available as part of the library.
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Jody Garnett added a comment - David and Peter - if you want to update the code for 2.4.x we have had a policy change in GeoTools. You can set up your own "unsupported" module to work on this problem, and when you have the needed amount of test coverage (and some user docs) it will be made available as part of the library.
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Didier De Schepper added a comment -
Is there any activity on this topic? I would need measured shape files for a project I'm working on.
I would be glad to take this up and contribute it. Just let me know what the steps are on setting up an "unsupported" module.
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Didier De Schepper added a comment - Is there any activity on this topic? I would need measured shape files for a project I'm working on. I would be glad to take this up and contribute it. Just let me know what the steps are on setting up an "unsupported" module.
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Andrea Aime added a comment -
For those wondering, this issue was not assigned to anyone, so nobody noticed it for years.
I probably don't have time to look into it in the short term, but at least now I know it's there.

I'm not so sure adding a measure attribute is the way to go though... why not keep the M in the geometry, there is a measure for each point in the geometry anyways no?
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Andrea Aime added a comment - For those wondering, this issue was not assigned to anyone, so nobody noticed it for years. I probably don't have time to look into it in the short term, but at least now I know it's there. I'm not so sure adding a measure attribute is the way to go though... why not keep the M in the geometry, there is a measure for each point in the geometry anyways no?

People

  • Assignee:
    Andrea Aime
    Reporter:
    David R Robison
Vote (4)
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Dates

  • Created:
    Updated: