Hi all,
I used the SubstringExtractor to pull out a polyline, and now I want to use the VertexCreator. My question is what X and Y coordinates are correct? What value can I use?
Solved
VertexCreator
Best answer by david_r
In fact, looking at your sample data again, you seem to already have the complete track geometry in the "polyline" attribute. Try the following:
Result:
Does this correspond with your initial question?
+41- Evangelist
Hi @george_g
What do you want to do? Replace a point geometry ( x and y coordinates )?
Could you share us your Workspace? Or print file?
Thanks,
Danilo
Here is a sample of the data
start_latit,start_long,end_latit,end_long,polyline
51.492472,-0.0911039,51.5045804185264,-0.0862417893094511,{lhyH|nQUzA}@vAcE_CyBwCuJcTm@XgB|G{AeAaBgEaFxBiDtFUAmGkCeFiFyIeN
The X and Y values should be a floating point number expressed in your local ground units (e.g. meters or degrees). Assuming these values are in degrees Lat/Long, they should be OK for creating a point in Lat/Long space:
X=51.492472
Y=-0.0911039 I can create the start/end points but I don't know how I can create the polyline. Do you have any ideas?
Extract the two sets of Lat/Long values, then use two VertexCreator one after another, configured as follows (notice the Mode setting):
+41- Evangelist
george_g wrote:
I can create the start/end points but I don't know how I can create the polyline. Do you have any ideas?
Hi @george_g
After the two transformers VertexCreator according @david_r wrote you, its possible to use the transformer LineBuilder ( for connect both points and create line ):
Thanks,
Danilo
danilo_fme wrote:
Hi @george_g
After the two transformers VertexCreator according @david_r wrote you, its possible to use the transformer LineBuilder ( for connect both points and create line ):
Thanks,
Danilo
Why complicate life with a LineBuilder, when simply chaining one VertexCreator after another does the same thing?
george_g wrote:
I can create the start/end points but I don't know how I can create the polyline. Do you have any ideas?
In this way, if I will connect the points I will have only straight lines and not tracks, isn't it?
The part of the polyline represents a track.
Might be the polyline wrong?
I will try to fix it with your suggestion and I will be back to you with the result.
Thank you a lot,
George
- Best Answer
In fact, looking at your sample data again, you seem to already have the complete track geometry in the "polyline" attribute. Try the following:
Result:
Does this correspond with your initial question?
+41- Evangelist
george_g wrote:
In this way, if I will connect the points I will have only straight lines and not tracks, isn't it?
The part of the polyline represents a track.
Might be the polyline wrong?
I will try to fix it with your suggestion and I will be back to you with the result.
Thank you a lot,
George
Excellent @george_g ;)
david_r wrote:
In fact, looking at your sample data again, you seem to already have the complete track geometry in the "polyline" attribute. Try the following:
Result:
Does this correspond with your initial question?
It looks like to have the right result.
Did you use only the geometry replacer tool?
I am going to try it when I will be back and I will let you know.
Thank you,
George
george_g wrote:
It looks like to have the right result.
Did you use only the geometry replacer tool?
I am going to try it when I will be back and I will let you know.
Thank you,
George
Yes, only the GeometryReplacer transformer. No need for the VertexCreator etc.
david_r wrote:
In fact, looking at your sample data again, you seem to already have the complete track geometry in the "polyline" attribute. Try the following:
Result:
Does this correspond with your initial question?
Thank you a lot david_r
I solved it!
I really appreciate your guidance, and the time you spent.
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