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The standard Oracle install (workgroup or better, someone correct me if
I'm wrong) comes with something called "Locator", while not all of the
Spatial Cartridge capabilities are included in it, there are some
Spatial components that work without a full bore Spatial implementation.<br>
<br>
You might want to cross reference your list with those capabilites.<br>
<br>
do a search on Oracle Spatial vs Oracle Locator for more info.<br>
<br>
a blurb I found here:<br>
<br>
<a class="moz-txt-link-freetext" href="http://atlis.nl/en/sis/knowledge/oracle-spatial.html">http://atlis.nl/en/sis/knowledge/oracle-spatial.html</a><br>
<br>
<h2> Oracle Spatial vs. Oracle Locator </h2>
<p> Oracle Locator is a standard component of the database. Locator has
the same geographical data structure and index mechanisms as Oracle
Spatial, but lacks some functionalities. Functions and procedures for
coordinate transformation, spatial aggregations and tuning options that
are part of Oracle Spatial are missing in Oracle Locator. </p>
<p> If Oracle database products are used, there are no additional costs
for Oracle Locator. Oracle Spatial has to be purchased as an addition
to Oracle’s “enterprise edition” database.<br>
</p>
<p><br>
</p>
<p>bobb<br>
</p>
<p><br>
</p>
<br>
<br>
<br>
listuser HH wrote:
<blockquote cite="mid43D639CE.8040901@herzsys.de" type="cite">Steve
Lime wrote: <br>
<br>
<blockquote type="cite">The only GEOS methods exposed are convex hull
and a buffer. I didn't
<br>
want to go nuts until I received some feedback about the usefulness of
<br>
that type of functionality. They are not difficult to add. Are there
specific
<br>
operators you are interested in and would be willing to test? Let me
know
<br>
if so and we can work in the 4.9 branch.
<br>
<br>
A full list of operators supported by GEOS is available at
geos.refractions.net.
<br>
<br>
As for mapfile integration. My idea was to expose a few operators that
work of a single shape (e.g. buffer, convex hull, etc...) via the
PROCESSING
<br>
block that is currently used for defining raster operations. That way
you
<br>
could basically apply a GEOS operator to all features of a particular
layer as
<br>
they are read from the data source- for any data source.
<br>
<br>
Steve
<br>
<br>
<br>
<br>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite">listuser HH <a class="moz-txt-link-rfc2396E" href="mailto:listuser@HERZSYS.DE"><listuser@HERZSYS.DE></a>
01/19/06 5:49 AM >>>
<br>
<br>
</blockquote>
</blockquote>
</blockquote>
Hello all,
<br>
<br>
I would like to know how much of the GEOS functions (and which) are
already available in the MapScript API and in PHP MapScript. I found
only intersects and cointains for both. The shapeObj in PHP Mapscript
also has buffer and convexhull.
<br>
<br>
Can someone tell me what the plans for including more of the GEOS
functions are?
<br>
<br>
Are there plans to use some functions (i.e. buffer) directly in the
mapfile?
<br>
<br>
Are there any docs that give some more information?
<br>
<br>
Regards
<br>
<br>
Norbert
<br>
<br>
<br>
<br>
<br>
</blockquote>
Hi Steve,
<br>
<br>
sorry for the late reply I was not in office.
<br>
<br>
At the moment I'm collecting arguments to convince costumers to use
MapServer. I know there are many good reasons to use MapServer - mostly
because of the good work you and the other developers did and do - but
I want to give a full overview. I tested PostGIS a bit and I think that
there is much potential but some of our costumers have Oracle and they
will not use Postgres. So it will be nice to have some of the functions
available in MapServer.
<br>
<br>
In the following I have made a list with the things I was thinking of.
I give a ranking for the importance (1 - most / 5 - fewest).
<br>
- crosses -> 1
<br>
- (boolean) intersect -> 2
<br>
- (geom) intersect -> 2
<br>
- union -> 2
<br>
- difference -> 3
<br>
- getCentroid -> 3
<br>
- getLength -> 4
<br>
- getArea -> 4
<br>
- touches -> 4
<br>
- isValid -> 5
<br>
- disjoint -> 5
<br>
<br>
If others are interested perhaps we can open a poll for "Geometry
functions in MapServer" with all the GEOS functions to see what would
be important for a bigger group of people.
<br>
<br>
Thanks and my best regards
<br>
<br>
Norbert
<br>
<br>
</blockquote>
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