Issue 17 in gmaps-utility-library-flash: hole within a polygon is not drawn correct (donut polygon)

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Status: New
Owner: ----
Labels: Type-Defect Priority-Medium

New issue 17 by stef.jung: hole within a polygon is not drawn correct
(donut polygon)
http://code.google.com/p/gmaps-utility-library-flash/issues/detail?id=17

It's not possible to draw a hole within a polygon (donut polygon). The hole
also gets drawn as separate polygon. The problem appeared in on of our
projects where we combine Google Maps and the ArcGIS Server REST API.

To reproduce it we created a simple donut polygon (see PDF) with ArcMap.
This polygon is available through the ArcGIS Server REST API. With some
basic code (see PDF) we can display the polygon as graphic-overlay. But it
is not drawn correct. There might be a problem in interpreting the rings.
The vertices of the first ring is clockwise and the vertices of the second
(inner) ring is anti-clockwise.

It is very important for us that we can display the holes within a polygon
correctly.

Regards,

Stefan

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What version of the API are you using?
- Flex 3.2
- map_flex_1_16.swc
- GoogleMapsAPIUtilityLibrary.swc
- IMap.getImplementationVersion(): 16

What operating system and browser are you using?
- Always reproducible, does not depend on the browser or operating system.
- Windows XP/Vista, Google Chrome, Firefox, IE7/8


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Attachments:
Flash-API_Donut_Polygon.pdf 123 KB
Flash-API_SampleCode.pdf 23.6 KB

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Updates:
Status: Accepted
Owner: nianwei

Comment #1 on issue 17 by nianwei: hole within a polygon is not drawn

correct (donut polygon)
http://code.google.com/p/gmaps-utility-library-flash/issues/detail?id=17

The arcgislink lib was ported from the JS version, which does not support
hole at
all. It looks like the flash API actually work with holes in some fashion.
I'll see
what I can do.

[codesite...@google.com]

Comment #2 on issue 17 by stef.jung: hole within a polygon is not drawn

correct (donut polygon)
http://code.google.com/p/gmaps-utility-library-flash/issues/detail?id=17

Sounds good. If i can support you in any way just let me know.

[codesite...@google.com]

Comment #3 on issue 17 by nianwei: hole within a polygon is not drawn

correct (donut polygon)
http://code.google.com/p/gmaps-utility-library-flash/issues/detail?id=17

If you can provide a REST service that can be accessible from Internet and
let me
know ow to get to the feature with hole that would make it easier so I do
not have to
create myself.

[codesite...@google.com]

Comment #4 on issue 17 by stef.jung: hole within a polygon is not drawn

correct (donut polygon)
http://code.google.com/p/gmaps-utility-library-flash/issues/detail?id=17

You can access this example:

http://labs.alta4gis.de/gmaps/rest/0/query?
geometryType=esriGeometryEnvelope&spatialRel=esriSpatialRelIntersects&where=1%3D1&retur
nGeometry=true&f=pjson

This service provides the polygon i described @ pdf.

[codesite...@google.com]

Updates:
Status: Fixed

Comment #5 on issue 17 by nianwei: hole within a polygon is not drawn

correct (donut polygon)
http://code.google.com/p/gmaps-utility-library-flash/issues/detail?id=17

I put in a change and should be working for you. You need to use SVN check
out to get
the code and compile yourself.
example:

http://gmaps-utility-library-flash.googlecode.com/svn/trunk/examples/ArcGISLink/bin-release/DonutHole.html

[codesite...@google.com]

Comment #6 on issue 17 by stef.jung: hole within a polygon is not drawn

correct (donut polygon)
http://code.google.com/p/gmaps-utility-library-flash/issues/detail?id=17

looks good thanks a lot, i am gona test it in the next days.

[codesite...@google.com]

Comment #7 on issue 17 by stef.jung: hole within a polygon is not drawn

correct (donut polygon)
http://code.google.com/p/gmaps-utility-library-flash/issues/detail?id=17

I forgot to write some feedback. I compiled the current svn version and it
works
fine. Even with more complex polygons.

Thank you.