Close polyline

http://www.filedropper.com/pic_1

 

http://www.filedropper.com/fme

 

 

here is workbench and example in microstation....so, green line is unclosed, and red line is the line with i need to closed that green line..and red line need to be on z value between first and last point of green line..

u could project the lines to the x,y plane goin 2D (as in the view of your pic i assume).

 

In 2D

 

If u dont have it already, make a ID for the polylines in 2 classes.

 

Intersect the lines then build areas.Discard unused lines.

 

Line on area overlayer with the original redlines to get the used pieces.

 

Get start and endnodes of those and then use x,y to get the x,y,z of the greenlines in 3D.

 

Then connect those. Then connect these with gree lines.

http://www.filedropper.com/example

 

 

can you help me with this workbench?

Hi,

 

 

I guess you need to set Z-value of start / end node of the Green line; the z-value should be interpolated based on both end nodes (x, y, z) of related Red line segment. If so, the following way could be available. See images and related help documentations to configure detailed parameter settings for the transformers.   S1. Create Vertex Points of Green Line 1) Counter appends unique identifier (ID) to every line. 2) CoordinateCounter gets the number of vertices (_coordcount) of each line. 3) Chopper transforms lines to every vertex points. Mode: By Vertex Meximum Vertices: 1 4) Counter_2 appends sequential number (_count) to every point. Counter Name: @Value(ID) Count Start: 1

 

5) Tester divides points into start / end nodes and others. If 1 < _count AND _count < _coordcount --> PASSED (others) Else --> FAILED (start / end nodes) S2. Create 3D Line Segments from Red Line 1) Chopper_2 transforms each polyline to individual line segments. Mode: By Vertex Meximum Vertices: 2 2) CoordinateExtractor extracts start coordinate (_x0, _y0, _z0). 3) CoordinateExtractor_2 extracts end coodinate (_x1, _y1, _z1). 4) LengthCalculator calculates 2D lenght of the line segment (_length).

 

S3. Calculate and Set Z-Value to Start / End Node of Green Line 1) NeighborFinder finds location on the Red line segment closest to each start / end node of Green line. 2) AttributeCreator calculates these values. _dx = _closest_candidate_x - _x0 _dy = _closest_candidate_y - _y0 _dz = _z1 - _z0 3) 3DForcer calculates and sets Z to start / end node of Green line. Z(Elevation) = _z0 + _dz * sqrt(_dx * _dx + _dy * _dy) / _length

 

  S4. Re-create Green Line and Close 1) Sorter sorts vertex points by ID and _count. 2) PointConnector connects vetex points to re-create Green lines. 3) LineCloser close the lines.

 

 

Hope this helps.

 

Takashi

tnx, but i think that are not giving me the right result...

 

here is picture what i realy want..

 

on the left picture is current situation, green letter are heigh of first and last point of green line, and red one is of the red line (but red line is not split on the intersect, and should be. text 15 is universal, is not the same on one line, is variable.)..on the right picture is what i need...red line shoud be cliped, snaped to green line so that could be generated polygon, and the height of that line shoud be interpolated...

http://www.filedropper.com/example_1

 

 

here is the link...sorry

Sorry. I didn't understand your question exactly. This workspace example might help you. Please download and evaluate it.  http://www.pragmatica.jp/fmepedia/131213WorkspaceExample.zip

tnx...i think that could help...can you just save that workspace in version 2011 or 2012 because i can't see everything..tnx

I'm using FME 2013.

 

Both 2011 and 2012 are also installed in my machine, but I used some new functionalities of 2013 in the workspace example, so cannot save it for old version simply. Just a moment.

Created this workspace example using FME 2012 SP4 Build 12266.

 

http://www.pragmatica.jp/fmepedia/131213WorkspaceExample_2012SP4.zip

 

 

Hope this helps.

 

Takashi

 

thanks, that looks impressive..

 

but i don't know why FME stoped on Feature Merger, from output port complete does not derive anything...i attach you original dgn file, and if you have time please check what is going on..i really dont know

 

http://www.filedropper.com/example_2

Found 2 issues. 1. All the riginal red lines (6) are not polylines. Those are individual line segments. Try using the LineJoiner transformer after reading. 2. Connect the Chopper_2 UNTOUCHED port and the LengthCalculator_2 INPUT port. It's my mistake. UNTOUCHED port of the Chopper has been removed in FME 2013, I forgot it.

it's better tnx, but still i can't get all polygon...i get 83 polygon, and still have ten - fifteen witch is not created when i overlay with input dataset.

There are some exceptional conditions in the data. e.g. small gap between end of green line and red line, ring-shaped red lines. I think you will have to inspect data in detail and consider appropriate pre-processing or other approaches corresponding to actual conditions.

i found two more example which should be included in FME.

 

First, when i look in atribute of executed polygons, i see that the first and last point of polygon dosen't have the same heigh, e.g. polygon on picture 1 is for the first point take the height of the red line, and the last point of the green but they should be the same. And FME execute only one polygon,

 

probably because it is identical green line that connects them. There is another problem continues.

 

 

One red polygon is divided by more green lines (picture 2). here should be five polygons. one green line is identical for two polygons. FME does not create none polygon. do you have any idea? tnx

 

 

http://www.filedropper.com/pic1

 

http://www.filedropper.com/pic2