Re: [OpenMap Users] Problem with decorated OMPoly

From: Don Dietrick <>
Date: Thu, 12 Jan 2006 10:43:31 -0500

Hi Piotr,

These effects are related to your previous email with the polygon,
arising as a result of how the decorations are laid out on the
shape. The decoration mechanism also needs to be updated so the
layout of the decoration occurs in the generate() method of the
OMGraphic as opposed to the render() step.

Please let me know if you are interested in funding these updates, as
that would allow us to insert them into our work schedule and provide
you an estimate on when they would be completed.



On Jan 11, 2006, at 2:21 PM, Piotr Kamiński wrote:

> Hi Don,
> I will appreciate if someone fix this bug for me.
> I have also some other minor problems with decorations. We've made
> decorated version of almost every OMGraphic class, including
> OMCircle. When decoration pattern is big and circle radius is small
> what you get is more like polygon than circle (see attached
> pictures). Picture 2 and 4 would appear much better if I could
> define pattern (dot or two lines) and distance between those
> patterns. Now pattern includes dot and fragment of lines as you can
> see.
> (The same problem as for circle is for splines.)
> I expect that solving those problems might change API but in my
> opinion it is worth doing.
> --
> Piotr
> Don Dietrick napisał(a):
>> Hi Piotr,
>> I added a bug report in Bugzilla for this.
>> Thanks,
>> Don
>> On Jan 10, 2006, at 6:10 PM, Piotr Kamiński wrote:
>>> Hi Don,
>>> With my last project I have to create OMPolys with decorations.
>>> In general it works fine but there are strange behaviors near
>>> the corners.
>>> It is especially visible with acute angles (see attached
>>> picture) and when decoration pattern is longer one. At the
>>> picture I draw yellow line which I expect to see instead empty
>>> place near corners. Maybe decorated lines and decoration pattern
>>> should support something like ComplementPattern which might be
>>> used if distance to corner is shorter than size of the pattern.
>>> In most cases simple extension of line would be sufficient.
>>> I used decorated poly to draw special areas (e.g. anchorage).
>>> Such deformation caused by decoration changes the overall shape
>>> of those areas. It is not appropriate.
>>> --
>>> Piotr
>>> <decoratedOMPoly.PNG>
>>> <ex2.PNG>
>>> <ex3.PNG>
>>> <ex4.PNG>
>>> <ex1.PNG>

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Received on Thu Jan 12 2006 - 10:45:45 EST

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