using(Table table = geodatabase.OpenDataset<Table>("实验红线")){ //属性选择器 ArcGIS.Core.Data.QueryFilter QueryFilter = newArcGIS.Core.Data.QueryFilter { WhereClause = "City = '城市2'"};//属性选择集 using(Selection itFolks = table.Select(QueryFilter, SelectionType.ObjectID, Selection...
In ArcGIS Pro, when creating a feature class and table, a data type is selected for each field. Data types include number types, text types, date types, binary large objects (BLOBs), or globally unique identifiers (GUIDs). In some cases, it is desirable to change the data type of cert...
importarcpyimportos# SDE workspace to be usedadmin_workspace ="Database Connections/tenone@sde.sde"analyze_contents = []fordirpath, workspaces, datatypesinarcpy.da.Walk( admin_workspace, followlinks=True, datatype=['Table','FeatureClass','RasterDataset']):# Create full path, and add tables,...
# Name: AttributeSelection.py # Purpose: Join a table to a featureclass and select the desired attributes # Import system modules import arcpy # Set environment settings arcpy.env.workspace = "C:/data/Habitat_Analysis.gdb" # The qualifiedFieldNames environment is used by Copy Features when pers...
pTextElment = new TextElementClass(){Symbol = pTextSymbol,ScaleText = true,Text = pFeature.get_Value(index).To\String()};pEle = pTextElment as IElement;pEle.Geometry = pPoint;//添加标注pGraContainer.AddElement(pEle, 0);pFeature = pFeatCur.NextFeature();}(axMapControl.Map as ...
In ArcGIS Pro, convert the feature layer to a geodatabase feature class to enable editing of the attribute table. Note: This workflow does not require enabling editing of the hosted feature layer in ArcGIS Online. In theContentspane, browse to and right-click the layer. ...
对表格数据(table)、要素类(feature class)、栅格数据(raster)、数据集(dataset)的访问与管理 第三章、数据获取与清洗 一、数据获取: 数据主要包括土地利用数据、社会经济数据、基础地理信息数据、自然环境数据(地形、土壤以及气候数据): 二、数据预处理(ArcGIS Pro及Python环境) ...
MessageBox.Show("Select a feature class from the Content 'Table of Content' first.");return; } layer= MapView.Active.GetSelectedLayers()[0]asBasicFeatureLayer; });if(layer ==null) MessageBox.Show("Unable to find a feature class at the first layer of the active map");else{vardataSource...
NumPy 数组中的整型字段不支持空值。如果使用FeatureClassToNumPyArray或TableToNumPyArray转换的数据包含空值,系统会完全跳过包含空值的行,或使用替代值将其掩膜。 跳过所有包含空值的记录。 arr=arcpy.da.FeatureClassToNumPyArray(fc,fields,skip_nulls=True) ...
通常,会根据在这两个表中均可找到的字段值将数据表连接到图层。这一字段的名称可以不同,但数据类型必须相同;例如,必须将数字连接到数字,将字符串连接到字符串,依此类推。可以使用连接数据对话框(通过在 ArcMap 中右键单击某个图层来访问)或添加连接工具执行连接操作。