MVMapView.transformGeom and big geometries result in error 05511

Question

Hello,
i have a problem with using MVMapView.transformGeom with geometries with many ordinates. When i try to transform such a geometry object i get a Mapviewer error 05511.
Using Firefox with firebug i could examine the response from the server. It tells me that the Request-URI is too large (414)
I can also see that the parameters are transfered to the server using GET, so it is no wonder that i get that error.
Wouldn't it be better to use POST instead of GET to send the geometry to the server?
I had a deeper look at the oraclemaps.js and found out that for example getLenght or getArea seem to use POST, so i tried to modify transformGeom in the same way, but that didn't work. It still builds a long URI instead of posting a parameter array ( If you look at the request in firebug, you will notice that the POST-TAB is empty. Normally the parameters should appear there, like for example in a getfoi request)
Now i wonder if there is another way to transform a big geometry.
Or maybe the transformGeom function can be altered to use POST instead of GET in the next version of mapviewer.
Regards,
DIrk

Answer 1

Yeah, we should have put the request parameters in the request body, not the URL.
Based on your post, I believe you're capable of fixing it by yourself. What you need to do is to take the request parameters out of the URL, change the method from "GET" to "POST" and send the parameters separately in the request.send call. The line that defines the request URL has "request=cstransform&dstsrid=" in it.
This is a temporary solution. We'll fix it in our code. Don't do it if you're not sure about what I am talking about.