That means that referencedenvelope3d is not derived from en evelope3d any
longer, which is impossible unless I drop envelope3d all together and merge
them. Is that what you are suggesting? I will look in to this possibility.
Sent from Samsung Mobile
Justin Deoliveira <[email protected]> wrote:
When I first read over the proposal this was my thought as well.
On Tue, Jul 17, 2012 at 5:47 AM, Jody Garnett <[email protected]> wrote:
That would work for me.
--
Jody Garnett
On 17/07/2012, at 7:38 PM, Andrea Aime <[email protected]> wrote:
On Tue, Jul 17, 2012 at 10:15 AM, Jody Garnett <[email protected]> wrote:
The interface was just an idea I threw in there, because there were concerns
about ReferencedEnvelope3D not being a ReferencedEnvelope.
But the idea of not making separate classes and make the current ones
support 3D, I think is quite tricky too.
The algorithms aren't necessarily the same with 2d and 3d. Basically,
every method would need to have a check whether there is a 3rd dimension or not.
Agreed; it would not be fun. We do have a couple implementations of the opengis
Envelope interface to show us the way however.
Still I would rather have one class that is tricky for us to write; then make
something that is difficult for everyone else to use.
Notes:
- this single class solution prevents you from performing an instance of check
to determine if 2D or 3D is supported - will that be a problem for your code?
- A clean way to implement would be to have an optional internal "delegate"
opengis Envelope, if it is non null we can delegate to that implementation. If
it is null we can delegate to the JTSEnvelope superclass.
Why can't we have a ReferencedEnvelope3D extends ReferencedEnvelope?
It would allow the writing of the custom 3d logic without riddling the code
with if statements,
and would allow for an instanceof check.
Cheers
Andrea
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