shp meaning

Before the beginning of the text or first spit groove, a line of code debug a day do not know how to change, finally stumbled out (the following SHP file for example)For virtual machine testing1 PublicString GetPath () {2File Sddir =NULL;3 BooleanSdcardexit =environment.getexternalstoragestate (). Equals (Android.os.Environment.MEDIA_MOUNTED);4 if(sdcardexit) {5Sddir =environment.getexternalstoragedirectory ();6

Author: Zhu Jincan Source: http://blog.csdn.net/clever101 How to Understand esri shp files? A shp file is generally composed of three files: SHP file, DBF file, shx file, and prj file. . The SHP file records the coordinate location information of each graphic element. The DBF file records the feature informati

In the project, the chart information is displayed using the Eharts chart style, need to use the map display method, but the existing map does not meet the individual needs of the project, the use of map images is neither flexible nor beautiful. Echarts map extension file using the Geojson format, there are many ways to make, I choose to convert the SHP data into the Geojson format, because you can use ArcMap to create their own personalized

Aoi, area of interest, that is, areas of interest. It is often used in ERDAS. Conversion of common SHP files of ArcGIS to AOI files: Open the viewer window, load the. SHP file, and select the area to be converted in the window. The area is highlighted, Click Copy selection to AOI under the AOI menu, Select save AOI layer as... under the File menu to save it as a. Aoi file. Crop the grid with Vector Data:

Label:1. BackgroundIn the production of the overall open source toolbox products, data warehousing is an important link. Although PostGIS provides data warehousing interface operations, this tool cannot be integrated into our toolbox, and the tool interface, operation is not ideal, and can not be customized to complete a number of specific requirements. Therefore, it is more necessary to make a self-made SHP storage tool.2. Thinking 2.1

encode different features under each layer It is described with a 7-digit number and the structure is primary encoding (4-bit + 1-bit) + Encoding (2 digits). The first four digits are in accordance with the requirements of the national standard, followed The 7-bit encoding is stored in the thickness attribute. For blocks, use different block names for 7 characters. Number encoding. 21112 create a conversion File Build DWG data and Shape conversion file (zhwj. t XT ). Format: type, type Property

Article copyright by the author Xiaohui Li is and the blog park, if reproduced please clearly indicate the source: http://www.cnblogs.com/naaoveGIS/1. PrefaceAt present, the project is based on the control Point Library of SHP data coordinate transformation, the process is roughly: Traverse layer features, get each feature's coordinate string, query control point Library, coordinate transformation, build new features, and finally build a new layer. Th

GDAL's java environment configuration and Analysis of converting shp to json Overview: Two days ago, a colleague asked me another question. The question was probably like packing the shp data bit zip format and uploading it. After the upload is complete, it will be displayed on the web. This requirement was previously met on Arcgis Online, so I am still familiar with it, so I told him: First decompress the

Gdal is used to read and write raster and vector data, in the Gdal official website, you can download the relevant resources for the compilation of the platform. In fact, the bottom of ArcGIS is also used gdal to read SHP files, that in Android can directly read and write shp files, is OK. Someone here has compiled the android-side so. You can also try compiling the related so yourself.Create a new project,

-because it is a front-end rendering display, easy to interact with, and can only control the style in the previous paragraph.Disadvantage-the backend and front end have pressure on the data and presentation data, and when the amount of data is particularly large, front-end rendering consumes performance easily. In this scheme, when we put shp vector data into a text file with certain algorithm, we can avoid the pressure of dynamically acquiring

In a point shp file, the coordinate information for a point is saved in the shape field of the SHP file, not directly to the coordinates. We can extract the latitude and longitude of a point and save it in the attribute table X (or longitude), Y (or latitude) field of the SHP file. Here's how: 1) Open the attribute table for the point

Steps: 1) create a workspace Factory 2) Open the shapefile workspace. 3) Open the element class 4) create a element layer 5) Associate layers and element classes 6) Add to map Space Code (The following figure shows the corresponding steps ): Iworkspacefactory pworkspacefactory = new shapefileworkspacefactory (); // 1 Openfiledialog1.filter = "shaperfile (*. SHP) | *. SHP "; Openfiledialog1.initialdirectory

Gdal/OGR 1.9.0 was released in another new version, but a problem with Chinese support was discovered. in earlier versions of 1.8.1, gdal began to support wide bytes, or the support for various encodings, gdal in the default processing, all the path strings as UTF-8 encoding for processing, that is why the beginning of version 1.8.0, if the default compiled path does not support the Chinese path. For more information, see http://blog.csdn.net/liminlu0314/article/details/6610069. There is also a

Recently, ArcGIS controls were used to display maps. Previously, mxd files were loaded to display maps. However, each time a map was zoomed in or dragged, the map was reloaded, if the screen or latency is serious, the real-time display of elements cannot be completed. For this reason, after I change to a file in the SHP format, the effect is significantly improved. However, the SHP file is obtained from the

PostgreSQL 9.3 is installed as required, before a 9.2. Database error, 9.3 version selected. The PostGIS 2.1 is then installed through the application stack bulider. Installed when you choose to create an empty database, but the installation failed repeatedly, the installation succeeded after the cancellation.After configuring the parameters for the database, select the. shp file to import, change the Srid, here in fact the srid I do not quite underst

Tool: Vs2012+gdal 2.0Data: China provincial boundaries shp file bou2_4p.shpInclude Header files:#include "Ogrsf_frmts.h"Code: int main (){Gdalallregister (); Gdaldataset*PoDS; Cplsetconfigoption ("shape_encoding","");//solve Chinese garbled problem//reading shp filesPoDS = (gdaldataset*) Gdalopenex ("d:/shapefile/bou2_4p.shp", gdal_of_vector, NULL, NULL, or NULL); if(PoDS = =NULL) {printf ("Open failed.\n%s

1. Draw boundaries in Google EarthSelect "Add Polygon" in the toolbar. Randomly draw a polygon.Right-click the added layer name (left) where you saved it, select Save As KMZ or KML file.KML files are often just a route, and KMZ can be opened with WinRAR, select the KML file, the output can be.Convert 2.KML files to shpSelect Conversion Tools--from KML in Arctoolbox, select KML to Layer, fill in the parameters. Note: The file output is in FGDB format.In catalog, right-click layers are everywhere

I. preparations: 1. first, convert the obtained longitude and latitude coordinates (generally longitude and latitude) to the degree format. The conversion formula is = left (C3, 3) + mid (C3, find ("°", C3) + 3600)/60 + mid (C3, find ("'", C3) +)/(Note: each parameter depends on the actual situation) 2. regenerate an Excel table. The corresponding X and Y coordinates generate two columns respectively. The coordinate information is arranged in sequence under the first row column (such as X and Y.

ENVI irregular cropping (using SHP files) Read by 678 Comment (0) Favorites Report Today, customers who want to achieve irregular cropping are always operating under ArcGIS. Today, they are very itchy and want to work on it under envi. After a long time, they have finally finished the work, now we will write down the steps for cropping the grid in ENVI for your reference: Steps: Open the irregular

Private void exportSdeBtn_Click (object sender, EventArgs e){OpenFileDialog penFileDialog1 = new OpenFileDialog ();PenFileDialog1.Filter = ("ShapeFile (*. shp) | *. shp ");PenFileDialog1.InitialDirectory = "D: \ project \ ThematicDataManager"; // dialog box directoryPenFileDialog1.ShowDialog ();String outLyerPath = penFileDialog1.FileName;String layerDirectoryName = Path. GetDirectoryName (outLyerPath) + "\