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Vytvořit vrstvu trasy

TerryGustafson

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Pokusím se vysvětlit, co mám a čeho se snažím dosáhnout. Zdá se, že by to mělo být jednoduché, ale mám s tím potíže. Mám vrstvu Measured, která obsahuje segmenty pro každý míli podél trasy. V tabulce mám Route_Id, který vypadá takto. Například C000001E_12. C znamená Corridor. 000001 je název trasy. E je identifikátor vozovky a 12 by byl milníkový bod. Takže pro C000001E existuje několik milníkových bodů nebo C000001E_0, C000001E_1, C000001E_2 a tak dále až do konce trasy. Každý z těchto segmentů má pole délky, které označuje délku této míle. Některé jsou dlouhé a některé krátké míle. Chci vytvořit segment trasy založený na milníkových bodech. Přemýšlel jsem, že bych mohl vytvořit liniovou vrstvu, která bude mít specifický C000001E s jednotlivými záznamy milníkových bodů a jejich délkami. Udělal to někdo podobné nebo mi můžete pomoci nasměrovat mě správným směrem?<\/P>

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Děkuji předem<\/P>

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Terry<\/P><\/BODY><\/HTML>

Najděte více příspěvků označených jako

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TedKowal

I have not done anything with the ESRI Web components. I use my own home grown set up here since the company does not yet want to purchase the software.

You can dissolve and but the process of creating a linear reference already dissolves the individual segments into one... In the pictured example I sent each corridor is composed of many segments and the creation a route dissolves that into one single line composed of measures?

TerryGustafson

I was thinking dissolve might work to create one measure per corridor. Then the measure could be broken up into each mile and its respective length. So when I create a GP service I can locate create a route segment based on the newly created corridor measure.

TerryGustafson

Ted,

Have you done anything with Web App builder?

TedKowal

Yes you can dissolve the segments to one line and then create a route -- lots of ways to the solution.

TedKowal

There are lots of ways to create and edit a Linear Reference. I would suggest you look through the esri help and tutorial to get a feel for it. However I can show you one way (may not be the best way for you) but it basically creates a LRS with all your corridor segments.

TerryGustafson

This makes sense to me but not sure where the selection tab is.. Which linear referencing tool do I use? This does sound just like what I want to perform. My goal is to create the process and then create a model and then create a geoprocessing service.

SharonZastre

Would the Dissolve tool accomplish what you are trying to do? Assuming there is a field in the table identifying the Corridor and Roadbed (C000001E), then you should be able to dissolve all features based on this field. So all features that have the same Corridor and Roadbed, would be merged into one feature.

TedKowal

I am only guessing on what your after but maybe this will help:

I do this periodically on our measured routes which are created from multiple segment centerlines (multiple segments that have varied lengths). Under the Selection tab, Select by Attributes. For the where clause I use something this (insert your own field names) left([Route],10) = '836042520W'. This will select all the segments that have a Route name with that portion of the route name your case something like left([Route_ID],8)= 'C000001E'). From the selection I then create a single route with that ID. You would not add the individual mile post records but use them as an event table against the single route you just created since the from to measures are already known or can be calculated from your naming scheme.

One import thing to mention is that your segment that will be composing your route all run in the same direction (beg and ends) increasing in the same direction, if not you will have to "flip" those segments not drawn in the proper directions.

Hopefully this does not cause more confusion.

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