CoastGIS'99: geomatics and coastal environment
application. As some measures are applicable according to defined
periods and some temporary measures can suspend for a certain time
a pre-existing statute, the process may turn out to be complex.
Due to the number of zonings concerning each activity, existing overlaps, and subtleties to be included in the display, graphic semiology must
be adapted. An application example concerning space allocation to
various fishing boats in the “pertuis Charentais” zone has been developed by Guillaumont & Durand (1997), an example of complementary
crossing involving constraints relative to the natural environment has
been presented by Allain et al. (1999a).
This type of analysis can also contribute to a spatial refinement of fish
production data, which are currently only available in large squared
statistics, and to the selection of favourable sites in view of a new activity (Durand et al., 1994).
In terms of environmental protection, it may be possible to manage information relative firstly to spatial or species characteristics, secondly to
property status and parties involved, thirdly to the objectives and the
stage of intervention. By interlinking information it is possible to check
the appropriate level of protection with respect to the type of environment and to the risks involved. It is easy to detect the accumulation of
different forms of protection in the same space which is accepted from
the jurisdictional standpoint as a sign of ecological value.
Example of broadcasting information via a GIS - Web coupling
In order to help Ifremer coastal laboratories, an intranet Web site (multiuser option) has been developed using a Windows NT server. Its incrementation is in progress. Thanks to this system, it is possible to manage,
search for and display textual jurisdictional information and also link
up with the data available on a GIS. Pages concerning filiation and
comments help clarify the general context and facilitate the link to
georeferenced data. The Frontpage 98 software defines the interface, the
hypertext links and the tree diagrams.
Tools which ensure the management, classification and search for documents have been developed internally. Search can be conducted by text
type, chronological order, thematic key-words, zoning type, as well as
the implementation of search drives.
By surfing the Web, it is also possible to make requests which activate
dynamic chart servers, so that a user who is unfamiliar with GIS can access
cartographic information interactively: close-up functions, display of
associated supplementary information concerning the chart, themes or
objects. This application is implemented by a cartograhic server (CartaGen) which is parametrized by a preparation tool (CartaPrep).
The CartaGen cartographic server generates the chart on request and
transfers the information to the Web user in the form of a HTML code,
with a GIF formatted chart image. It has been developed in the Visual
Basic environment and is based on Map Objects ™ and Internet Map
Server ™ products from ESRI.
280
application. As some measures are applicable according to defined
periods and some temporary measures can suspend for a certain time
a pre-existing statute, the process may turn out to be complex.
Due to the number of zonings concerning each activity, existing overlaps, and subtleties to be included in the display, graphic semiology must
be adapted. An application example concerning space allocation to
various fishing boats in the “pertuis Charentais” zone has been developed by Guillaumont & Durand (1997), an example of complementary
crossing involving constraints relative to the natural environment has
been presented by Allain et al. (1999a).
This type of analysis can also contribute to a spatial refinement of fish
production data, which are currently only available in large squared
statistics, and to the selection of favourable sites in view of a new activity (Durand et al., 1994).
In terms of environmental protection, it may be possible to manage information relative firstly to spatial or species characteristics, secondly to
property status and parties involved, thirdly to the objectives and the
stage of intervention. By interlinking information it is possible to check
the appropriate level of protection with respect to the type of environment and to the risks involved. It is easy to detect the accumulation of
different forms of protection in the same space which is accepted from
the jurisdictional standpoint as a sign of ecological value.
Example of broadcasting information via a GIS - Web coupling
In order to help Ifremer coastal laboratories, an intranet Web site (multiuser option) has been developed using a Windows NT server. Its incrementation is in progress. Thanks to this system, it is possible to manage,
search for and display textual jurisdictional information and also link
up with the data available on a GIS. Pages concerning filiation and
comments help clarify the general context and facilitate the link to
georeferenced data. The Frontpage 98 software defines the interface, the
hypertext links and the tree diagrams.
Tools which ensure the management, classification and search for documents have been developed internally. Search can be conducted by text
type, chronological order, thematic key-words, zoning type, as well as
the implementation of search drives.
By surfing the Web, it is also possible to make requests which activate
dynamic chart servers, so that a user who is unfamiliar with GIS can access
cartographic information interactively: close-up functions, display of
associated supplementary information concerning the chart, themes or
objects. This application is implemented by a cartograhic server (CartaGen) which is parametrized by a preparation tool (CartaPrep).
The CartaGen cartographic server generates the chart on request and
transfers the information to the Web user in the form of a HTML code,
with a GIF formatted chart image. It has been developed in the Visual
Basic environment and is based on Map Objects ™ and Internet Map
Server ™ products from ESRI.
280