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C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"67","role":"interior","side":"interior","x":-31.104166666666668,"z":-17.458333333333332,"drawingX":{"inchesRational":"1743","feet":145.25},"drawingZ":{"inchesRational":"657","feet":54.75},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"70","role":"interior","side":"interior","x":-2.2708333333333335,"z":-17.458333333333332,"drawingX":{"inchesRational":"2089","feet":174.08333333333334},"drawingZ":{"inchesRational":"657","feet":54.75},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"73","role":"interior","side":"interior","x":26.5625,"z":-17.458333333333332,"drawingX":{"inchesRational":"2435","feet":202.91666666666666},"drawingZ":{"inchesRational":"657","feet":54.75},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"76","role":"interior","side":"interior","x":54.5625,"z":-17.458333333333332,"drawingX":{"inchesRational":"2771","feet":230.91666666666666},"drawingZ":{"inchesRational":"657","feet":54.75},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"59","role":"interior","side":"interior","x":-103.52083333333333,"z":8.625,"drawingX":{"inchesRational":"874","feet":72.83333333333333},"drawingZ":{"inchesRational":"970","feet":80.83333333333333},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"60","role":"interior","side":"interior","x":-103.52083333333333,"z":29.708333333333332,"drawingX":{"inchesRational":"874","feet":72.83333333333333},"drawingZ":{"inchesRational":"1223","feet":101.91666666666667},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"62","role":"interior","side":"interior","x":-80.10416666666667,"z":12.541666666666666,"drawingX":{"inchesRational":"1155","feet":96.25},"drawingZ":{"inchesRational":"1017","feet":84.75},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"65","role":"interior","side":"interior","x":-59.9375,"z":13.333333333333334,"drawingX":{"inchesRational":"1397","feet":116.41666666666667},"drawingZ":{"inchesRational":"2053/2","feet":85.54166666666667},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"68","role":"interior","side":"interior","x":-31.104166666666668,"z":13.333333333333334,"drawingX":{"inchesRational":"1743","feet":145.25},"drawingZ":{"inchesRational":"2053/2","feet":85.54166666666667},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"71","role":"interior","side":"interior","x":-2.2708333333333335,"z":13.333333333333334,"drawingX":{"inchesRational":"2089","feet":174.08333333333334},"drawingZ":{"inchesRational":"2053/2","feet":85.54166666666667},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"74","role":"interior","side":"interior","x":26.5625,"z":13.333333333333334,"drawingX":{"inchesRational":"2435","feet":202.91666666666666},"drawingZ":{"inchesRational":"2053/2","feet":85.54166666666667},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"63","role":"interior","side":"interior","x":-80.10416666666667,"z":33.541666666666664,"drawingX":{"inchesRational":"1155","feet":96.25},"drawingZ":{"inchesRational":"1269","feet":105.75},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"66","role":"interior","side":"interior","x":-59.9375,"z":33.541666666666664,"drawingX":{"inchesRational":"1397","feet":116.41666666666667},"drawingZ":{"inchesRational":"1269","feet":105.75},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"69","role":"interior","side":"interior","x":-31.104166666666668,"z":33.541666666666664,"drawingX":{"inchesRational":"1743","feet":145.25},"drawingZ":{"inchesRational":"1269","feet":105.75},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"72","role":"interior","side":"interior","x":-2.2708333333333335,"z":33.541666666666664,"drawingX":{"inchesRational":"2089","feet":174.08333333333334},"drawingZ":{"inchesRational":"1269","feet":105.75},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"75","role":"interior","side":"interior","x":26.5625,"z":33.541666666666664,"drawingX":{"inchesRational":"2435","feet":202.91666666666666},"drawingZ":{"inchesRational":"1269","feet":105.75},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"78","role":"interior","side":"interior","x":54.5625,"z":33.541666666666664,"drawingX":{"inchesRational":"2771","feet":230.91666666666666},"drawingZ":{"inchesRational":"1269","feet":105.75},"positionStatus":"dimension-transcribed-E12-13","applicableFloors":[12,13],"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-westcore.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-first.png","analysis/wtc7-blueprint-reconstruction/E1213-core-z-mid.png","analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-middle.png","analysis/wtc7-blueprint-reconstruction/E1213-core-shared-south.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"],"notes":["Core X dimension chain; west-core vertical chain and explicitly shared main-core rows. C62 is9.5in NORTH of the C65/68/71/74 girder row, as independently dimensioned in E12/13 and E8/9."]},{"id":"79","role":"interior","side":"interior","x":98.69791666666667,"z":-26.458333333333332,"drawingX":{"inchesRational":"26405/8","feet":275.0520833333333},"drawingZ":{"inchesRational":"549","feet":45.75},"positionStatus":"dimension-transcribed-E12-13-S8","applicableFloors":[12,13],"positionUncertaintyFt":null,"sourceIds":["frankel-E12-13","cantor-S8-H"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core798081-datum.png","analysis/wtc7-blueprint-reconstruction/E1213-eastcore-z-cumulative.png","analysis/wtc7-blueprint-reconstruction/S8-eastcore-x-top.png","analysis/wtc7-blueprint-reconstruction/S8-eastcore80-81-x.png"],"notes":["Original cumulative X and south-reference Y ordinates; C81 shares the south core row.","No as-built positional tolerance is inferred from printed dimensions."]},{"id":"80","role":"interior","side":"interior","x":91.47916666666667,"z":6.645833333333333,"drawingX":{"inchesRational":"3214","feet":267.8333333333333},"drawingZ":{"inchesRational":"3785/4","feet":78.85416666666667},"positionStatus":"dimension-transcribed-E12-13-S8","applicableFloors":[12,13],"positionUncertaintyFt":null,"sourceIds":["frankel-E12-13","cantor-S8-H"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core798081-datum.png","analysis/wtc7-blueprint-reconstruction/E1213-eastcore-z-cumulative.png","analysis/wtc7-blueprint-reconstruction/S8-eastcore-x-top.png","analysis/wtc7-blueprint-reconstruction/S8-eastcore80-81-x.png"],"notes":["Original cumulative X and south-reference Y ordinates; C81 shares the south core row.","No as-built positional tolerance is inferred from printed dimensions."]},{"id":"81","role":"interior","side":"interior","x":85.625,"z":33.541666666666664,"drawingX":{"inchesRational":"12575/4","feet":261.9791666666667},"drawingZ":{"inchesRational":"1269","feet":105.75},"positionStatus":"dimension-transcribed-E12-13-S8","applicableFloors":[12,13],"positionUncertaintyFt":null,"sourceIds":["frankel-E12-13","cantor-S8-H"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core798081-datum.png","analysis/wtc7-blueprint-reconstruction/E1213-eastcore-z-cumulative.png","analysis/wtc7-blueprint-reconstruction/S8-eastcore-x-top.png","analysis/wtc7-blueprint-reconstruction/S8-eastcore80-81-x.png"],"notes":["Original cumulative X and south-reference Y ordinates; C81 shares the south core row.","No as-built positional tolerance is inferred from printed dimensions."]},{"id":"77","role":"interior","side":"interior","x":54.5625,"z":10.448866067608044,"drawingX":{"inchesRational":"2771","feet":230.91666666666666},"drawingZ":{"inchesRational":"1545359/1558","feet":82.65719940094138},"positionStatus":"dimension-derived-straight-C74-C80-grid-intersection","applicableFloors":[12,13],"positionUncertaintyFt":null,"construction":{"method":"intersection-of-dimensioned-X-with-straight-girder-centerline","lineColumnIds":["74","80"],"lineParameterRational":"336/779","interpolatedAxis":"z"},"sourceIds":["frankel-E12-13","cantor-S8-H"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-core-control.png","analysis/wtc7-blueprint-reconstruction/E1213-core77-z-full.png","analysis/wtc7-blueprint-reconstruction/E1213-core77-sloping-dim.png","analysis/wtc7-blueprint-reconstruction/E1213-core798081-datum.png","analysis/wtc7-blueprint-reconstruction/S8-eastcore-dimensions.png"],"notes":["Derived from two independently dimensioned girder endpoints and C77 X.","The resulting rational Z is not claimed to be a separately printed dimension or an as-built survey."]},{"id":"2","role":"perimeter","side":"west","x":-157.6155188361924,"z":-58.64021408727934,"drawingX":{"inchesRational":"222840/991","feet":18.738647830474267},"drawingZ":{"inchesRational":"4356506/26757","feet":13.568119246053993},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"2111/16","feet":10.994791666666666},"lineParameterRational":"2111/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"3","role":"perimeter","side":"west","x":-154.26889926000672,"z":-49.21798695979868,"drawingX":{"inchesRational":"262638/991","feet":22.085267406659938},"drawingZ":{"inchesRational":"59054659/214056","feet":22.990346373534653},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"245","feet":20.416666666666668},"lineParameterRational":"3920/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"4","role":"perimeter","side":"west","x":-150.9777791792802,"z":-39.9520156719114,"drawingX":{"inchesRational":"301776/991","feet":25.376387487386477},"drawingZ":{"inchesRational":"20713975/53514","feet":32.25631766142193},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"5699/16","feet":29.682291666666668},"lineParameterRational":"5699/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"5","role":"perimeter","side":"west","x":-147.68665909855366,"z":-30.686044384024118,"drawingX":{"inchesRational":"340914/991","feet":28.667507568113017},"drawingZ":{"inchesRational":"106657141/214056","feet":41.522288949309214},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"3739/8","feet":38.947916666666664},"lineParameterRational":"7478/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"6","role":"perimeter","side":"west","x":-144.3955390178271,"z":-21.420073096136836,"drawingX":{"inchesRational":"380052/991","feet":31.958627648839556},"drawingZ":{"inchesRational":"65229191/107028","feet":50.788260237196496},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"9257/16","feet":48.213541666666664},"lineParameterRational":"9257/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"7","role":"perimeter","side":"west","x":-141.10441893710058,"z":-12.154101808249555,"drawingX":{"inchesRational":"419190/991","feet":35.249747729566096},"drawingZ":{"inchesRational":"154259623/214056","feet":60.05423152508378},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"2759/4","feet":57.479166666666664},"lineParameterRational":"11036/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"8","role":"perimeter","side":"west","x":-137.81329885637405,"z":-2.8881305203622727,"drawingX":{"inchesRational":"458328/991","feet":38.54086781029263},"drawingZ":{"inchesRational":"22257608/26757","feet":69.32020281297106},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"12815/16","feet":66.74479166666667},"lineParameterRational":"12815/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"9","role":"perimeter","side":"west","x":-134.5221787756475,"z":6.377840767525009,"drawingX":{"inchesRational":"497466/991","feet":41.831987891019175},"drawingZ":{"inchesRational":"201862105/214056","feet":78.58617410085834},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"7297/8","feet":76.01041666666667},"lineParameterRational":"14594/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"10","role":"perimeter","side":"west","x":-131.23105869492096,"z":15.64381205541229,"drawingX":{"inchesRational":"536604/991","feet":45.12310797174571},"drawingZ":{"inchesRational":"112831673/107028","feet":87.85214538874563},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"16373/16","feet":85.27604166666667},"lineParameterRational":"16373/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"11","role":"perimeter","side":"west","x":-127.93993861419442,"z":24.909783343299573,"drawingX":{"inchesRational":"575742/991","feet":48.414228052472254},"drawingZ":{"inchesRational":"249464587/214056","feet":97.11811667663291},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"2269/2","feet":94.54166666666667},"lineParameterRational":"18152/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"12","role":"perimeter","side":"west","x":-124.64881853346787,"z":34.175754631186855,"drawingX":{"inchesRational":"614880/991","feet":51.70534813319879},"drawingZ":{"inchesRational":"68316457/53514","feet":106.38408796452019},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"19931/16","feet":103.80729166666667},"lineParameterRational":"19931/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"13","role":"perimeter","side":"west","x":-121.35769845274135,"z":43.44172591907414,"drawingX":{"inchesRational":"654018/991","feet":54.996468213925326},"drawingZ":{"inchesRational":"297067069/214056","feet":115.65005925240747},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"10855/8","feet":113.07291666666667},"lineParameterRational":"21710/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"14","role":"perimeter","side":"west","x":-118.03882862428523,"z":52.785825126758105,"drawingX":{"inchesRational":"693486/991","feet":58.315338042381434},"drawingZ":{"inchesRational":"321068995/214056","feet":124.99415846009144},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"1469","feet":122.41666666666667},"lineParameterRational":"23504/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"14A","role":"perimeter","side":"west","x":-114.69220904809956,"z":62.208052254238765,"drawingX":{"inchesRational":"733284/991","feet":61.6619576185671},"drawingZ":{"inchesRational":"172635803/107028","feet":134.4163855875721},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"west","dimensionAxis":"north-south-projection","cumulativeDimension":{"inchesRational":"25313/16","feet":131.83854166666666},"lineParameterRational":"25313/26757","closureResidualInches":0.0625,"coordinateAdjustmentBoundInches":0.06632529083177205},"sourceIds":["frankel-E12-13","frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-west.png","analysis/wtc7-blueprint-reconstruction/E14_15-westtop-rotated.png","analysis/wtc7-blueprint-reconstruction/E1213-west-projected-bottom.png","analysis/wtc7-blueprint-reconstruction/E1213-west-C13-14-projection.png","analysis/wtc7-blueprint-reconstruction/E1213-west-chain-bottom-numbers.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"41","role":"perimeter","side":"east","x":159.44184289567244,"z":-58.08731917371583,"drawingX":{"inchesRational":"54781761/13595","feet":335.7960095623391},"drawingZ":{"inchesRational":"9214809/54380","feet":14.121014159617506},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"east","dimensionAxis":"inclined-side-length","cumulativeDimension":{"inchesRational":"547/4","feet":11.395833333333334},"lineParameterRational":"1094/13595","closureResidualInches":-0.03288005328363397,"coordinateAdjustmentBoundInches":0.03288005328363397},"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-east-chain-upper.png","analysis/wtc7-blueprint-reconstruction/E1213-east-chain-lower.png","analysis/wtc7-blueprint-reconstruction/E1213-east-chain-top-numbers.png","analysis/wtc7-blueprint-reconstruction/E1213-east-bottom-fraction-enlarged.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"40","role":"perimeter","side":"east","x":157.37825334068899,"z":-48.47314729680029,"drawingX":{"inchesRational":"54445107/13595","feet":333.73242000735564},"drawingZ":{"inchesRational":"15488633/54380","feet":23.73518603653304},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner centers","chainId":"east","dimensionAxis":"inclined-side-length","cumulativeDimension":{"inchesRational":"1019/4","feet":21.229166666666668},"lineParameterRational":"2038/13595","closureResidualInches":-0.03288005328363397,"coordinateAdjustmentBoundInches":0.03288005328363397},"sourceIds":["frankel-E12-13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-east-chain-upper.png","analysis/wtc7-blueprint-reconstruction/E1213-east-chain-lower.png","analysis/wtc7-blueprint-reconstruction/E1213-east-chain-top-numbers.png","analysis/wtc7-blueprint-reconstruction/E1213-east-bottom-fraction-enlarged.png"],"notes":["Printed fractional dimensions, not the NIST schematic trace.","Tiny chain closure residual is explicit; normalization preserves independently controlled corners and straight facade alignment.","Dimension-derived does not mean a separately printed Cartesian coordinate or known as-built tolerance."]},{"id":"39","role":"perimeter","side":"east","x":155.31466378570553,"z":-38.858975419884764,"drawingX":{"inchesRational":"54108453/13595","feet":331.6688304523722},"drawingZ":{"inchesRational":"21762457/54380","feet":33.34935791344857},"positionStatus":"dimension-derived-E12-13-normalized-side-chain","positionUncertaintyFt":null,"applicableFloors":[12,13],"construction":{"method":"cumulative printed dimensions normalized between independently dimensioned corner 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centerline"}},"closureChecks":[{"id":"north-bay-chain","status":"exact-rational-closure","bayCount":16,"residualInches":0},{"id":"south-bay-chain","status":"exact-rational-closure","bayCount":13,"residualInches":0},{"id":"west-corner-depth","status":"exact-rational-closure","residualInches":0},{"id":"straight-row-depth","status":"exact-rational-closure","residualInches":0},{"id":"north-boundary-offsets","status":"exact-rational-closure","residualInches":0},{"id":"south-boundary-offsets","status":"exact-rational-closure","residualInches":0},{"id":"east-boundary-31ft-offset","status":"exact-rational-closure","residualInches":0},{"id":"west-core-to-perimeter-Z-chain","status":"exact-rational-closure","residualInches":0},{"id":"east-core-cumulative-Z-control","status":"exact-rational-closure","residualInches":0},{"id":"west-side-chain-vs-corner-controls","status":"printed-fractional-chain-residual-preserved","residualInches":0.0625,"maximumResidualInches":0.063,"resolution":"Normalize cumulative printed bay fractions between independent exact corner centers.","normalizationDisplacementBoundInches":0.06632529083177205},{"id":"east-side-chain-vs-corner-controls","status":"printed-fractional-chain-residual-preserved","residualInches":-0.03288005328363397,"maximumResidualInches":0.063,"resolution":"Normalize cumulative printed bay fractions between independent exact corner centers.","normalizationDisplacementBoundInches":0.03288005328363397}],"corrections":[{"field":"C65/C68/C71/C74 and derivedC77 Z","previousInterpretation":"Girder line assumed to continue directly through C62 column center; source9.5in jog was missed.","resolution":"Apply original9.5in southward girder offset atC62, independently explicit in E8/9 and E12/13. Upper and lower middle-column controls now agree; no invented transition.","sourceCrops":["analysis/wtc7-blueprint-reconstruction/transition-source-crops/E1213-C62-9half-jog.png","analysis/wtc7-blueprint-reconstruction/transition-source-crops/E89-C62-9half-jog.png"]}],"sourceDifferences":[{"field":"Column 1 north inset","E12-13":{"inchesRational":"247/8","feet":2.5729166666666665},"S8-revision-H":{"inchesRational":"119/4","feet":2.4791666666666665},"differenceInches":1.125,"sourceCrops":["analysis/wtc7-blueprint-reconstruction/E1213-depth-north-end2.png","analysis/wtc7-blueprint-reconstruction/S8-northwest-z.png"],"resolution":"Keep E12/13 geometry floor-specific; S8 does not establish identical coordinates at every typical floor."}],"sources":[{"id":"frankel-E12-13","path":"sources/wtc7/drawings/NIST-FOIA-09-49/NIST_WTC7_FOIA_09-49/2010-10-13, WTC 7 Structural/E12 13.tif","sheet":"E12/13","title":"12th & 13th Floor Framing Plan, 7th Tier","pixelSize":[12692,10784]},{"id":"cantor-S8-H","path":"sources/wtc7/drawings/NIST-FOIA-09-49/NIST_WTC7_FOIA_09-49/2010-10-13, WTC 7 Structural/S8.tif","sheet":"S-8","revision":"H, 1985-08-05","use":"Core C79\u201381 cumulative controls and north X cross-check; C1 inset discrepancy preserved"},{"id":"frankel-E14-15","path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E14_15.tif","sheet":"E14/15","use":"Native west projected-bay fraction corroboration only; does not replace E12/13 plan scope"},{"id":"nist-fig2-3","path":"sources/wtc7/ncstar1-9.pdf","pdfPage":58,"printedPage":14,"use":"Legacy identifier inventory only; no remaining point uses this schematic position","nativeImage":"analysis/wtc7-model-review/nist-fig2-3-135.png"}],"limitations":["No unchanged repetition through all upper floors is established by floor12/13 coordinates.","The legacy exactColumns array means dimension-controlled: 54 directly transcribed and 28 explicitly dimension-derived coordinates.","The 27 side points normalize printed fractional chains; west 1/16 inch and east approximately 0.033 inch closure residuals remain explicit.","Column77 Z is a source-controlled girder-line intersection, not a separately transcribed grid ordinate.","Original section orientations, member-size schedules, lower transfers and foundations are separate datasets/work.","Dimensional transcription and arithmetic closure do not establish field-built tolerances or reconcile all design/shop revisions."]}