arcgis

Hello World Map (ArcGIS) - Eclipse's Emulator doesn't run ArcGIS app properly

由 大憨熊 提交于 2019-12-13 04:08:59
问题 I followed this tutorial’s steps. I named my project as “HelloWorld3” instead of “HelloWorld”. I followed all the steps carefully, and in my “HelloWorldActivity.java” I deleted what was already there (by default) and it was as the following: package com.esri.arcgis.android.samples.helloworld3; import android.app.Activity; import android.os.Bundle; import com.esri.android.map.MapView; public class HelloWorld3Activity extends Activity { MapView mMapView ; /** Called when the activity is first

Cannot create route from one point to another ArcGIS Android

由 不羁岁月 提交于 2019-12-13 02:38:40
问题 I've been trying very hard to create a route between two points( startPoint, endPoint ). But i am getting the following error: Location "Location 1" in "Stops" is unlocated. Location "Location 2" in "Stops" is unlocated. Need at least 2 valid stops. "Stops" does not contain valid input for any route. I've posted this question on gis.stackexchange.com and geonet.esri.com and didn't get a reply except one which was not helpful. My Code: private final String routeTaskURL = "http://sampleserver3

ArcGIS——GIS中的坐标系

由 你离开我真会死。 提交于 2019-12-13 00:17:07
1. 经纬度与GCS（Geographic Coordinate System, 地理坐标系统） 2. 方里网与PCS（Projection Coordinate System, 投影坐标系统） 3. GCS和PCS的转化问题（三参数与七参数问题） 4. 火星坐标问题 在第一部分，我介绍一下以经纬度为准的地理坐标系统，也顺带提及一下我国的高程坐标系。主要涉及的内容有：大地水准面问题，椭球问题，常见的GCS（如北京54，西安80，CGCS2000，WGS84等），让大家看到GIS数据中的GCS马上就能知道这是什么东西。 在第二部分，我介绍一下以平面直角坐标系为量度的投影坐标系统。主要涉及的内容有：PCS与GCS的关系，我国常见的PCS（高斯克吕格、兰伯特/Lambert、阿尔伯斯Albers、墨卡托Mercator、通用横轴墨卡托UTM、网络墨卡托Web Mercator）。 在第三部分，是实际操作过程中遇到的种种问题，如投影不对会出现什么情况、如何转换GCS、如何切换PCS（重投影问题）等问题，涉及一些数学转换的思维，需要有一定的空间想象能力。 在第四部分，我简单介绍一下所谓的火星坐标。 那么我们开始吧！ 1. 经纬度与GCS 天气预报也好，火箭发射也罢，地震、火山等事故发生时，电视台总会说东经XX度，北纬YY度。这个经纬度中学地理就学过了，我就不细说了。 我从如何描述地球说起。

Getting JavaScript runtime error: irrationalPath, what does it mean?

由 守給你的承諾、 提交于 2019-12-12 18:43:12
问题 In my MasterPage i'm using the following script <script type="text/javascript" src="http://serverapi.arcgisonline.com/jsapi/arcgis/?v=3.3"></script> And in my application, i have this peace of JavaScript code document.getElementById(menu_number).src = "<%=HttpContext.Current.Request.ApplicationPath%>/UI/Common/Images/down-arrow.gif"; I also have the Application_AcquireRequestState method below public void Application_AcquireRequestState(object sender, EventArgs e) { // Get http context from

Using CalculateField to update field with date

由 只愿长相守 提交于 2019-12-12 14:18:17
问题 I'm working with Arcpy in ArcGIS and trying to write code that will update a field with the last day of the previous month (ie. if I run the code today, 2017-09-01, it will update the field with 2017-08-31). If I do a manual field calculation, I can get it to work using VBScript and the pre-logic script code: Dim FC FC = DateSerial(Year(Date), Month(Date), 0) and then setting the field to equal FC: I've tried to integrate this into code so it can be set to run automatically, but haven't had

looking for open source tools [closed]

由 别等时光非礼了梦想. 提交于 2019-12-12 05:14:16
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 7 years ago . Do you know any tools available for the conversion of LAS (LIDAR data) into Voronoi diagrams or TIN (triangular irregular networks) available? Or can anyone can suggest how to do it in arcgis? 回答1: LIDAR data processing with open source tools 回答2: This may help a bit. In ArcGIS, you can either use an actual TIN

Is it possible to fetch the number of items with a certian property against the propery from a CSVLayer in ArcGIS Javascipt API?

由 对着背影说爱祢 提交于 2019-12-11 16:56:25
问题 Is it possible to fetch the number of items with a certain property against the property from a CSVLayer in ArcGIS Javascript API? This is the csv file. My intent is to Category 0 - 1 Category 1 - 0 Category 2 - 1 Category 3 - 0 if we are showing Legends from the "Category" property and all the documents are in the view. Also is it possible to filter the items based on the same property? Also is it possible to show the details in a Pie Chart? 回答1: You can use client side queries to retrieve

Why my callout only work for the last point it's not working for the others?

由 北慕城南 提交于 2019-12-11 08:51:54
问题 I already created callout function for single point it's really easy work without any interruption , but when I have multiple point the callout function work only for last point the others not working I have no idea why I searched in google many times but I didn't get any result, the below Code it's work for single point : mMapView.setOnSingleTapListener(new OnSingleTapListener() { private static final long serialVersionUID = 1L; @Override public void onSingleTap(float x, float y) { callout

聊聊GIS中那些坐标系

由 与世无争的帅哥 提交于 2019-12-11 07:10:31
聊聊GIS中那些坐标系 </h1> <div class="clear"></div> <div class="postBody"> 转载请声明到标题。 B站/博客园/CSDN/知乎：@秋意正寒 很开心能跃居百度关键词第一位，近期打算重写一下这篇博客，以更系统、更齐全的角度，更通俗易懂的语言讲授坐标系的初步认知。 从第一次上地图学的课开始，对GIS最基本的地图坐标系统就很迷。也难怪，我那时候并不是GIS专业的学生，仅仅是一门开卷考试的专业选修课，就没怎么在意。 等我真正接触到了各种空间数据产品，我才知道万里长征第一步就是：处理坐标系统。 想必各位从业人员多多少少都会听说过几个名词，可能有那么点印象吧。比如，高斯克吕格，北京54，西安80，WGS84，投影坐标系统等等。 今天就从头说起，讲讲那些坐标系统的事情。 惯例，给个目录： 经纬度与GCS（Geographic Coordinate System, 地理坐标系统） 平面坐标与PCS（Projection Coordinate System, 投影坐标系统） GCS和PCS的转化问题（三参数与七参数问题） 火星坐标问题 在第一部分，我介绍一下以经纬度为准的地理坐标系统，也顺带提及一下我国的高程坐标系。主要涉及的内容有：大地水准面问题，椭球问题，常见的GCS（如北京54，西安80，CGCS2000，WGS84等）

Conditional command from Raster Calculator transfer to R

由 偶尔善良 提交于 2019-12-11 05:06:18
问题 So far I used the following statement in the Raster Calculator of ArcGIS: Con(("Land_use.rst" == -20), "Export.rst") This calculates a new Raster which only contains the Data from Export where Land_use equals -20. That is exactly what I want. But I want to automatise this in R , as I have to do it a lot of times. So far I got something like this: for (catch_dir in Dir_List) { r1 <- raster(paste0(catch_dir, '/Export.rst')) r2 <- raster(paste0(catch_dir,'/LAND_use.rst')) ### statement that
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