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マルチパート区画

JeffWard

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皆さんはparcel fabricでマルチパート区画をどのように扱っていますか？道路の両側の部分を説明するものがいくつかありますが、道路自体は含まれていません。両方の部分を入力してからそれらを結合して区画の1つのレコードにすると、起点接続線が失われます。起点接続線が欠落すると、fabricでLSAが行われたときの調整に影響しますか？同じ名前で別々のポリゴンとして残すべきでしょうか？

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ありがとうございます、

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ジェフ・ウォード

サミット郡GIS

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Accepted answers

JasonCamerano

The best approach to entering a mutli-part parcel with an origin connection is as follows:

New Parcel
Start with the Origin Connection to the point of beginning (POB)
From the POB continue to COGO your parcel
When it's time to move to the other portion of the parcel, create a Part Connector line that spans across the road. (This is Category value 7 in the Category field)
Finish COGO'ing your other portion of the subdivision.

If you have already created the multipart and merged the parcel and want to re-add the Origin Connection:

Open the Parcel
Create the origin connection line (it will be going the wrong direction for now)
For each segment of the Origin Connection, switch the To and From points; For example if the line was FROM 5 TO 13 change it to the following: FROM 13 to 5.
Lastly, for each segment (individually, this wont work as a batch), select the row and choose REVERSE BEARING from the context menu.

To answer your other questions:

Yes, missing the origin connection lines can affect the LSA if it is not included in the adjustment. If you were to select the original historic parcel then you would be fine.
You alternative solution can work but you won't get the benefit of having a single parcel for the multipart.

All comments

JeffWard

I followed your process and I was able to merge a multi-part subdivision into a single subdivision. Two of the satellite parts we were able to create with connection lines, but two others didn't have anywhere that we were able to create connection lines to start the part. So we created them as individual subdivisions and merged them into the original, then recreated the origin to POB lines. I will mention that to create the origin lines, we had to unjoin the merged subdivision, create the lines reverse the from-to points and reverse the bearings and then join it again.

JasonCamerano

For a single parcel there should only be one area where Origin Connection lines exist. You can have multiple Origin Connection lines that follow a linear path to the POB, but elsewhere in the parcel there should be no other Origin Connection Lines. All other tie lines should be Connection lines.

Here are a couple links that might be helpful to better answer your questions: ArcGIS Help (10.2, 10.2.1, and 10.2.2) , ArcGIS Help (10.2, 10.2.1, and 10.2.2)

JeffWard

Thanks Jason Camerano, I will follow the process you outlined.

In cases where there isn't a connection line described (separate, distant portions that use a POB and tie point) would I just enter more origin to POB lines for the second or third parts after entering the traverse for the first part? Or should they be connection lines? I ask this because I'm not sure what process/fields/lines the LSA utilizes to adjust the fabric. Is there a diagram or something that shows the LSA adjustment process, what fields it uses to make adjustments?

Thanks,

Jeff

JasonCamerano

The best approach to entering a mutli-part parcel with an origin connection is as follows:

New Parcel
Start with the Origin Connection to the point of beginning (POB)
From the POB continue to COGO your parcel
When it's time to move to the other portion of the parcel, create a Part Connector line that spans across the road. (This is Category value 7 in the Category field)
Finish COGO'ing your other portion of the subdivision.

If you have already created the multipart and merged the parcel and want to re-add the Origin Connection:

Open the Parcel
Create the origin connection line (it will be going the wrong direction for now)
For each segment of the Origin Connection, switch the To and From points; For example if the line was FROM 5 TO 13 change it to the following: FROM 13 to 5.
Lastly, for each segment (individually, this wont work as a batch), select the row and choose REVERSE BEARING from the context menu.

To answer your other questions:

Yes, missing the origin connection lines can affect the LSA if it is not included in the adjustment. If you were to select the original historic parcel then you would be fine.
You alternative solution can work but you won't get the benefit of having a single parcel for the multipart.

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