ArcGIS REST Services Directory Login
JSON | SOAP

OIT_Services/CONTOURS_2006_10FT (MapServer)

View In:   ArcGIS JavaScript   ArcGIS Online Map Viewer   ArcGIS Earth   ArcGIS Pro

Service Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>10-ft contours by county were derived from the OSIP 2006 Lidar Based Digital Elevation Map (DEM) from OGRIP. Contours were originally generated at a 2-ft contour interval by USGS 7.5-Minute quad boundaries. 10-ft contours were selected from the 2-ft contours using function MOD(Contour,10) = 0. Contours were then clipped at county boundaries, and appended to a new feature dataset. Contours were unsplit at USGS quad boundaries in order to assure that lines would be continuous. The data was further refined by selecting only the lines that had a length greater than or equal to 1,000 feet. Finally two phases of simplification using a 0.1 foot and then a 1 foot simplify tolerance were applied to the contours to reduce the number of bends and allow faster draw for GIS applications. No additional contour clean up was performed. The data is not intended to replace survey data. The data should only be used as a general representation of changes in elevation.</SPAN></P></DIV></DIV></DIV>

Map Name: Map

Legend

All Layers and Tables

Dynamic Legend

Dynamic All Layers

Layers: Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>10-ft contours by county were derived from the OSIP 2006 Lidar Based Digital Elevation Map (DEM) from OGRIP. Contours were originally generated at a 2-ft contour interval by USGS 7.5-Minute quad boundaries. 10-ft contours were selected from the 2-ft contours using function MOD(Contour,10) = 0. Contours were then clipped at county boundaries, and appended to a new feature dataset. Contours were unsplit at USGS quad boundaries in order to assure that lines would be continuous. The data was further refined by selecting only the lines that had a length greater than or equal to 1,000 feet. Finally two phases of simplification using a 0.1 foot and then a 1 foot simplify tolerance were applied to the contours to reduce the number of bends and allow faster draw for GIS applications. No additional contour clean up was performed. The data is not intended to replace survey data. The data should only be used as a general representation of changes in elevation.</SPAN></P></DIV></DIV></DIV>

Service Item Id: 9906dfff164d41f8b9b265eedfb0c2c6

Copyright Text: Department of Natural Resources, Office of Information Technology.

Spatial Reference: 3754  (3754)  LatestVCSWkid(0)


Single Fused Map Cache: false

Initial Extent: Full Extent: Units: esriFeet

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

Document Info: Supports Dynamic Layers: true

MaxRecordCount: 2000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON, PBF

Supports Query Data Elements: true

Min Scale: 18055.954822

Max Scale: 0

Supports Datum Transformation: true



Child Resources:   Info   Dynamic Layer

Supported Operations:   Export Map   Identify   QueryLegends   QueryDomains   Find   Return Updates