Latest Contributions by AmirBar-Maor

We encourage not to project a parcel fabric as it can have corrupt your data - so making a backup should be step 1 and testing well the last step. However, if you have to do it, here is the secret recipe: How to project an ArcMap Parcel Fabric?  Description:   Projecting of a parcel fabric, including a datum transformation is not supported because many of the parcel fabric tables include XYZ coordinates as well as distance units which might change.  However, under certain circumstances and a series of steps, it is possible to project a parcel fabric.   This document describes the pre-requisites and steps to do it including the motivation / logic behind each step.   This process should only be carried out by someone proficient and tested well before used in the production environment again.    Prerequisites:  All the prerequisites must be fulfilled:  Risks:  Control points XY coordinates will be recalculated using the target spatial reference.  Control point association to point might be lost if they are not close to the parcel points (based on the entered tolerance during control point import).  Prep:  Download and install the Delete Fabric Records Add-in – it will be used to delete records from certain system tables (vectors, adjustments, jobs, control points).  Install the Parcel Fabric Quality Control Add-In – it will be used to recalculate the point’s XY coordinates.  Cleanup steps:  Add the source PF to the map  Right click on the control layer, Data [Symbol] Export Data and save it as a SHP file.  In the Catalog window right click on the parcel fabric [Symbol] truncate Fabric  Select these options:  Next [Symbol] truncate  Control Points prep:  Add the exported control to you map from the SHP file  Open the attribute table  Delete these fields:   PointID  X  Y  Select the feature dataset that contains the parcel fabric [Symbol] Right Click[Symbol] Import [Symbol] Feature Class (multiple) and add the SHP file as input.  Using the parcel editor toolbar, start editing and open the ‘Parcel Explorer’: make sure there are no constructions. Delete any construction.  Drag the parcel class to the map, open the attribute table and make sure all the parcel ‘Joined’ field is equal to 1. If you see any parcel that are unjoined, delete them or join them before projecting the parcel fabric.  Projecting the Data Steps:  From the geoprocessing tools open the ‘Project’ tool  As input specify the feature dataset containing the parcel fabric  Specify the new feature dataset name and location  Specify the target spatial reference and any datum transformation  Press Ok to project  Import back the control points:  Right click on the parcel fabric [Symbol] Import [Symbol] Control Points… Check ‘Use shape for coordinates’ and click Next  Since there are no control points in the target fabric no need to define setting for merging. Only set the match control point tolerance and press Next & Finish. After projecting the parcel fabric the points geometry is projected but the recorded coordinates in the attribute table are still using the old projection and need to be fixed.  Re-calculating XY on points:  In Catalog window right click the parcel fabric and press “Coordinate Inverse”  Additional operations:  Save the editing MXD under a new name  Point the map to the new projected data source  Change the map’s spatial reference to match the source data (else it will project on the fly and impact performance)  Recommended tests:  Zoom closely to a point and make sure the XY coordinates match it’s location (geometry). Identify tool shows coordinates.  Zoom to a control point and make sure it is associated and in the correct location (geometry =XY attributes)  Editing workflow: rejoin a parcel  Editing workflow: Unjoin a parcel and then join it from the parcel explorer  How would you know it is projected correctly?  Find a control for which the coordinates are known in the new coordinate system  ... View more