{ "snippet": "Building footprints were generated using Class 6 (Buildings) lidar point data. The building features, for features 400 square feet and larger, are available as a feature class within an ESRI geodatabase. Feature classes include HAG and LAG (highest and lowest adjacent grade), AverageZ (average grade), HRE (highest roof elevation), BuildingHeight (in feet), CollName (stratmap lidar collection name footprints were derived from), HUC8_Code, HUC8_Name, SourceYear (lidar collection year), SourceType (lidar, imagery, etc.), County. Also included are the fields Slope_HL (the slope from the HAG point to the LAG point, where Slope_HL = (HZ-LZ)/distance_H2L), ChkPolyV (the confidence level on the HAG/LAG value, reported by % value, where ChkPolyV = (count_valid*100)/totalCount); e.g., 96.5 = 96.5% confidence and 1 = full confidence). QA/QC processing occurred to meet the following accuracy requirement: Horizontal accuracy up to +/- 1m. Omission/commission errors will exist, and rooftop outlines may appear generalized or incomplete in certain areas where vegetation or other artifacts are present in the data.", "summary": "Building footprints were generated using Class 6 (Buildings) lidar point data. The building features, for features 400 square feet and larger, are available as a feature class within an ESRI geodatabase. Feature classes include HAG and LAG (highest and lowest adjacent grade), AverageZ (average grade), HRE (highest roof elevation), BuildingHeight (in feet), CollName (stratmap lidar collection name footprints were derived from), HUC8_Code, HUC8_Name, SourceYear (lidar collection year), SourceType (lidar, imagery, etc.), County. Also included are the fields Slope_HL (the slope from the HAG point to the LAG point, where Slope_HL = (HZ-LZ)/distance_H2L), ChkPolyV (the confidence level on the HAG/LAG value, reported by % value, where ChkPolyV = (count_valid*100)/totalCount); e.g., 96.5 = 96.5% confidence and 1 = full confidence). QA/QC processing occurred to meet the following accuracy requirement: Horizontal accuracy up to +/- 1m. Omission/commission errors will exist, and rooftop outlines may appear generalized or incomplete in certain areas where vegetation or other artifacts are present in the data.", "accessInformation": "Please refer to an individual lidar collection's metadata for specific information on lidar acquisition details and vendor information.", "thumbnail": "", "maxScale": 5000, "typeKeywords": [], "description": "

This dataset was created as an initiative by the Texas Geographic Information Office (TxGIO) to generate a statewide 2D building footprint dataset derived from stratmap lidar collections. These data were developed based on a horizontal projection/datum of WGS 1984 (ESPG 4326). Data is available as a feature class within an ESRI geodatabase.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "licenseInfo": "

Users should be aware that temporal changes may have occurred since this dataset was collected and some building footprints may no longer represent actual surface conditions. Users should not use this data for critical applications without full awareness of its limitations. Any conclusions drawn from the analysis of this data are not the responsibility of the TWDB or its partners.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "catalogPath": "", "title": "Stratmap Statewide Building Footprints", "type": "", "url": "", "tags": [ "building footprints", "TxGIO", "Texas", "lidar", "StratMap" ], "culture": "en-US", "portalUrl": "", "name": "", "guid": "", "minScale": 150000000, "spatialReference": "" }