サマリー
Defense Mapping production tool that simplifies contours for use in cartographic products. This tool preserves the essential shape of a contour by eliminating extraneous bends.
使用法
This tool modifies the input contours. You cannot undo this operation.
This tool first identifies redundant vertices, which are those that lie within a minimum allowable distance, or tolerance. Tolerance depends on the Scale parameter. This is accomplished in the tool using the Simplify Line tool with the POINT_REMOVE algorithm.
This tool then runs a smoothing algorithm, which is also dependent on the Scale parameter. This is accomplished in the tool using the Smooth Line geoprocessing tool with the PAEK algorithm.
Extraneous bends are composed of redundant vertices. This tool identifies redundant vertices as those that lie within a minimum allowable distance, or tolerance. Tolerance depends on the Scale parameter.
The Scale parameter and tolerance values are designed for use with Defense Mapping cartographic products.
Processing large datasets may exceed memory limitations. This is true with contours over large areas of interest, because the features have so many vertices. In such cases, consider processing input data by partition by identifying a relevant polygon feature class in the Cartographic Partitions environment setting. Portions of the data, defined by partition boundaries, will be processed sequentially. The resulting feature class will be seamless and consistent at partition edges. See Generalizing large datasets using partitions for more information.
構文
SimplifyContours(Input_Contours, Scale)
パラメーター | 説明 | データ タイプ |
Input_Contours | The input contours to be simplified. | Feature Layer |
Scale | Determines a simplification and smoothing tolerance. Tolerance specifies a minimum allowable distance between vertices. The tool removes vertices that lie within this tolerance.
| String |
コードのサンプル
SimplifyContours example (Python window)
The following code sample demonstrates how to use the SimplifyContours tool.
# set gp environment
arcpy.env.workspace="C:/data"
# variables for tool
inputContours="mgcp.gdb/mgcp/contours"
mapScale="1:12500"
# execute the tool
arcpy.SimplifyContours_defense(inputContours,mapScale)
環境
ライセンス情報
- ArcGIS Desktop Basic: いいえ
- ArcGIS Desktop Standard: 次のものが必要 Defense Mapping
- ArcGIS Desktop Advanced: 次のものが必要 Defense Mapping