Re: [Geotools-gt2-users] How to render a LineString with additional (3D) data?

[Jody G. <jga...@re...>]

This is the old x,y,z and measure problem. I don't know that SLD has a 
way to access per coordiante data. While we could make a function for 
that we would still be stuck with a single color for the style.

Antonie can we break your lines into a bunch of line segments?
Jody
> Ian Turton a écrit :
>> On Jan 30, 2008 11:47 AM, Antoine Berner <an...@ab...> wrote:
>>   
>>> Hi everybody
>>>
>>> I apologize for my newbie's question, but I coud not find answers.
>>>
>>> I have a Feature with a LineString geometry.
>>>
>>> The LineString is build on 3D points (x, y and z= color). How could I
>>> render that line and take the z argument as a value to compute the color
>>> of next segment?
>>>
>>> It is renderd with a style but I don't know what to add into my style so
>>> it chooses color according to the z argument.
>>>
>>>     
>> You don't say where the data is coming from so this may or may not
>> work. When you build the line string could you recast it so the z
>> value becomes an attribute and then the styler could use it as normal?
>>
>> Ian
>>   
> Yes of course I could make the z value an attribute..   But the 
> feature's gemometry being a LineString, it contains several points, 
> then several z values.
>
> Then I just don't know how to make the style use a different color for 
> each segment, even if the set of z values is an attribute of my feature.
> I hope I made myself clear.. do you think there is a way to work that 
> way? I don't think so.
>
> ant1