arcgis | 易学教程

Pandas: transform a dbf Table into a dataframe

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问题 I want to read a dbf file of an ArcGIS shapefile and dump it into a pandas dataframe. I am currently using the dbf package. I have apparently been able to load the dbf file as a Table, but have not been able to figure out how to parse it and turn it into a pandas dataframe. What is the way to do it? This is where I am stuck at: import dbf thisTable = dbf.Table('C:\\Users\\myfolder\\project\\myfile.dbf') thisTable.open(mode='read-only') Python returns this statement as output, which I frankly

ArcGIS JS 4加载第三方矢量切片

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现在矢量切片越来越普及,对于地图渲染能更轻更快。ArcGIS JS 4.13可以实现加载第三方矢量切片,以下为代码示例,最下方是我之前切的建筑物数据。当切片大小在1M左右，加载效果还是可以。不过跟mapbox gl相比还是有些逊色，mapbox gl可以加载6M大小的切片，但ArcGIS JS 4却不行。矢量切片还是需要控制好大小，这样才能快速传输和渲染。 var style = { "version": 8, "sources": { "osm": { "tiles": ["https://osm-lambda.tegola.io/v1/maps/osm/{z}/{x}/{y}.pbf"], "type": "vector" } }, "layers": [ { id: "land", type: "fill", source: "osm", "source-layer": "land", minzoom: 0, maxzoom: 24, paint: { "fill-color": "rgba(150, 150, 150, 1)" } } ], "id": "test" } require([ "esri/Map", "esri/views/MapView", "esri/layers/VectorTileLayer", "dojo/domReady!" ],

Get latitude & longitude from address geopandas

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问题 I have a csv of about 100 million logs. Where one of the column is address and I am trying to get latitude and longitude of the address. I want to try something like mentioned in the Solution , But the solution given is arcGIS and that is a commercial tool. I did try google API that has limit of 2000 entries only. What is next best alternative to get address's Lat & Long into the large dataset. Input: The column Site is the address from the City Paris start_time,stop_time,duration,input

FxCop analysis not finding indirectly-referenced assemblies - GAC issue?

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问题 I am running my DLL against FxCop and it is returning problems as seen in the image here (It also complains about System.Windows.Browser and System.Core, same versions): I have told FxCop to search the GAC and it isn't helping. I do have System.Runtime.Serialization referenced in my project but it is showing as version 4.0.0.0. I do not see this particular version of the file anywhere. Although I can skip it means it fails when I use FxCop Integrator in Visual Studio and I don't know what

How to add marker or graphics to MapView using ArcGIS android SDK?

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问题 I'm trying to add some markers or graphic to my Map using graphicsLayer, but I can't show them. This is my .geodatabase file converted from .shp file using ArcMap: http://1drv.ms/1OwrRm0 Could anyone help me! QQ Thanks in advance. Here is my code: package com.example.root.map; import android.net.Uri; import android.os.Bundle; import com.esri.android.map.MapView; import java.io.FileNotFoundException; import java.util.HashMap; import java.util.Map; import android.app.Activity; import com.esri

How to add marker or graphics to MapView using ArcGIS android SDK?

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I'm trying to add some markers or graphic to my Map using graphicsLayer, but I can't show them. This is my .geodatabase file converted from .shp file using ArcMap: http://1drv.ms/1OwrRm0 Could anyone help me! QQ Thanks in advance. Here is my code: package com.example.root.map; import android.net.Uri; import android.os.Bundle; import com.esri.android.map.MapView; import java.io.FileNotFoundException; import java.util.HashMap; import java.util.Map; import android.app.Activity; import com.esri.android.map.*; import com.esri.android.map.FeatureLayer; import com.esri.android.map.GraphicsLayer;

Uncaught TypeError: Cannot read property 'on' of undefined in arcgis

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问题 i am trying to display navigation tool and switch base map.Individually both are working good when i combine it its showing Uncaught Type Error: Cannot read property 'on' of undefined.can any tell me what is the mistake <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/> <title></title> <link rel="stylesheet" href="https://js.arcgis.com/3.15/dijit/themes/claro

arcgis for js 小功能组件大集合

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大家可能觉得既然是地图，那么肯定有一些跟用户交互的一些组件或者小功能什么的吧，聪明，确实有这些功能，漫游，放大，缩小，测面积，定位等等，这次来个大集合，为什么来大集合呢，我是不会告诉你我是因为研究这些功能的时候都把代码写在一起了，懒得分开了，我真是太（sang）机（xin）智（bing）了（kuang）！！！贴下代码 <!DOCTYPE html> < html lang = "en" > < head > < meta charset = "UTF-8" > < meta name = "viewport" content = "width=device-width, initial-scale=1.0" > < meta http-equiv = "X-UA-Compatible" content = "ie=edge" > < title > arcgis地图完整功能 </ title > < link rel = "stylesheet" type = "text/css" href = "./arcgis_js_api/library/3.17/3.17/dijit/themes/tundra/tundra.css" /> < link rel = "stylesheet" type = "text/css" href = "./arcgis_js_api

Arcgis : how to get device location

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问题 Hie i tried to implement this codes in my application but it doesnt work , i dont know where i went wrong. basically, when i launch the sample of the device location. it doesnt show me where is my current location and i dont see any blue dots that resembles the current location i am at. the only thing that i see is the map . just a plain zoom out map. I would be really thankful if someone who could help me out on how to get the current location with the blue dots that is displayed on the map.

ArcGIS Runtime SDK for WPF学习笔记(一)

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本节主要讲解如何安装ArcGIS Runtime SDK，以及移除注释与水印。　　附上 ArcGIS Runtime SDK for .NET 的官方操作手册网址： https://developers.arcgis.com/net/latest/wpf/guide/install-the-sdk.htm 一、项目添加 ArcGIS Runtime SDK 引用。　　鼠标右键点击项目，选择“管理NuGet程序包”。　　在“浏览”中输入“Esri”,在列表中选中“Esri.ArcGISRuntime.WPF”进行安装。二、在View中使用地图。　　在界面中添加引用 xmlns:esri="http://schemas.esri.com/arcgis/runtime/2013" 后，就可以直接使用地图控件了。 1 <esri:MapView> 2 <esri:Map> 3  4  5 6  7 <esri:Map.Basemap> 8 <esri:Basemap> 9 <esri