Re: [OpenMap Users] problem with esri files?

Come to think of it, it could be a problem with how OpenMap is handling
hole data. Shape files let you define holes in their polygon data, but
I can't remember offhand how they are handled in our code, or how well
they are handled. I remember reading about how holes are defined in
the Shape specification, with the coordinates of the hole going in the
opposite direction around the inside part.

I guess I would use the EsriPlugIn to render the water data, use the
gestures to figure out which record that the island is a part of, and
then take a closer look at that record. Beyond that, OMPoly might have
to be extended to handed holes correctly.

- Don

On Friday, September 26, 2003, at 07:36 PM, Cere M. Davis wrote:

>
> I think the answer to this is that it's polygon data than. I've tried
> changing the order that the layers are loaded in this but it doesn't
> change anything. More and more I think that this is a fault of the
> data
> because if I just load water alone I see the land as the background
> color,
> the water as blue and than the inner island as blue also. If the data
> were right I would see that the inner island was white also. Do you
> have
> any idea how I can bandaid this problem with the data?
>
>>
>> The easiest way is to set a fill color for the city blocks layer and
>> see if the data looks OK. If you start to get a lot of weird shapes,
>> it's probably polyline data. I think you can set some debug flags in
>> the shape layer that will tell you what kind of shapes it's reading
>> out
>> of the data file. I was just wondering if setting the fill color
>> would
>> better define the city blocks if you put it on top of the water.
>>
>> What if you put the city block data layer on top of the water data
>> layer?
>>
>> - Don
>>
>>>
>>>>
>>>> I guess I'm confused as to what part of the image is from the city
>>>> block file and which part is from the water data. What kind of data
>>>> is
>>>> the city block data? Is it polygons or polylines? A
>>>> semi-transparent
>>>> water color would still leak into the city block data, right?
>>>>
>>>> Are the two files from the same data source?
>>>>
>>>> - Don
>>>>
>>>>
>>>> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>>>> Don Dietrick, BBN Technologies, dietrick@bbn.com
>>>> 10 Moulton Street, Cambridge, MA 02138
>>>> 617-873-3031 [fax]-2794
>>>> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>>>>
>>>>
>>>
>>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>>> - -
>>> Cere Davis
>>> Unix Systems Administrator - CSDE
>>> cere@u.washington.edu ph: 206.685.5346
>>> https://staff.washington.edu/cere
>>>
>>> GnuPG Key http://staff.washington.edu/cere/gpgkey.txt
>>> Key fingerprint = B63C 2361 3B9B 8599 ECC9 D061 3E48 A832 F455 9E7FA
>>>
>>>
>>>
>>
>>
>> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>> Don Dietrick, BBN Technologies, dietrick@bbn.com
>> 10 Moulton Street, Cambridge, MA 02138
>> 617-873-3031 [fax]-2794
>> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>>
>>
>
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> - -
> Cere Davis
> Unix Systems Administrator - CSDE
> cere@u.washington.edu ph: 206.685.5346
> https://staff.washington.edu/cere
>
> GnuPG Key http://staff.washington.edu/cere/gpgkey.txt
> Key fingerprint = B63C 2361 3B9B 8599 ECC9 D061 3E48 A832 F455 9E7FA
>
>
>
> --
> [To unsubscribe to this list send an email to "majdart@bbn.com"
> with the following text in the BODY of the message "unsubscribe
> openmap-users"]
>
>

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Don Dietrick, BBN Technologies, dietrick@bbn.com
10 Moulton Street, Cambridge, MA 02138
617-873-3031 [fax]-2794
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

--
[To unsubscribe to this list send an email to "majdart@bbn.com"
with the following text in the BODY of the message "unsubscribe openmap-users"]