GeoServer is a Community open-source project implemented by J2EE in OpenGIS Web Server specifications. With GeoServer, you can easily publish map data, allowing you to update, delete, and insert feature data, geoServer allows users to quickly share spatial geographic information. This series of blog posts provide comprehensive and complete GeoServer deployment solutions, including detailed descriptions of features such as GeoServer environment setup, map data processing, map data deployment, and
Openlayers 2.x load map, openlayers2.x
Overview:
In the previous section, we talked about how Arcgis for js loads a map of heaven and earth, how to load a map of heaven and earth in Openlayers 2. X, and how to add your own wms service.
Effect:
Map
Images
Terrain
Remove local wms
Implementation:
1. Map World Service
On the official website of map, we can see the following:
The url of our callable graph
. samplingProfilerIntegration. start (); registerZygoteSocket (); // 1. Create a socket for listening to the EventLog of the fork request sent by ams. writeEvent (LOG_BOOT_PROGRESS_PRELOAD_START, SystemClock. uptimeMillis (); preload (); // 2. Load classes and resources. EventLog will be analyzed in detail later. writeEvent (LOG_BOOT_PROGRESS_PRELOAD_END, SystemClock. uptimeMillis (); // Finis H profiling the zygote initialization. samplingProfilerIntegration. writeZygoteSnapshot (); // Do an in
. samplingProfilerIntegration. start (); registerZygoteSocket (); // 1. Create a socket for listening to the EventLog of the fork request sent by ams. writeEvent (LOG_BOOT_PROGRESS_PRELOAD_START, SystemClock. uptimeMillis (); preload (); // 2. Load classes and resources. EventLog will be analyzed in detail later. writeEvent (LOG_BOOT_PROGRESS_PRELOAD_END, SystemClock. uptimeMillis (); // Finis H profiling the zygote initialization. samplingProfilerIntegration. writeZygoteSnapshot (); // Do an in
For project reasons, the first contact with ARCserver needs to be developed using ARCserver. Function: Enter the number of a plot. You must use WMS to return an image of the exterior rectangle of the plot.
My implementation method is to use the transfer method, which means that I create a page and put it on the server. After the client fills in the block number, it will directly submit it to this page; on this page, you can use the ARCserver API to
projects, focusing on Swing support, local and web processing support, adding additional symbols (symbology), and adding additional formats, generate a grid and implement ISO geometry.
Supported formats:1. Supported raster format and data accessArcSDE, arcgrid, geotiff, grassraster, gtopo30, image (JPEG, Tiff, GIF, PNG), ImageIO-ext-gdal, imagemoasaic, imagepyramid, jp2k, Matlab2. Supported Database "JDBC-ng"DB2, H2, MySQL, Oracle, postgis, spatialite, sqlserver3. Supported vector formats and d
JTs (Java topology suite ). JTs encapsulates common geoAlgorithmAnd implements the Simple Feature Specification of OpenGIS and provides memory-based spatial indexes.Web Map Server: Use geoserver. Download from http://geoserver.sourceforge.net. Geoserver implements the OpenGIS WMS specification and WFS specification. Or deegree. The entire deegree system is fully based on OGC specifications and concepts. It provides OGC services such as
(Java topology suite ). JTs encapsulates common geo algorithms , implements simple feature specifications of OpenGIS, and provides memory-based spatial indexes. Web Map server : geoserver is used. Download from http://geoserver.sourceforge.net. Geoserver implements the OpenGIS WMS specification and WFS specification. Or deegree. The entire deegree system is fully based on OGC specifications and concepts. It provides OGC services such as
Please respect the results of the sharing, reproduced please indicate the source:http://blog.csdn.net/hejjunlin/article/details/52335094This article starts to analyze the key message event distribution (PS: The source code in this article is Android 6.0, please know) First look at the agenda:
The Dispatchinputevent method in Viewrootimpl
View.dispatchkeyevent method
Viewgroup.dispatchkeyevent method
Activity.dispatchkeyevent method
Keystroke Message Event Timing diagram
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. BackgroundAs with the offline tiling scheme, it is also designed to address mobile speed and traffic issues, but not just this. The traditional presentation of vector data is generally divided into two scenarios:
Dynamically capture vector data images from the WMS (vector data is returned from
gave a picture of the image into a discrete diagram after the organization of the file, which shows you in this graph, the organization of the file is in accordance with the tile level, row, column number to organize. In fact, the same is true of the organization style of the compact tile (Bundle), but it also has a series of conversions after the number of rows, such as reading the index file to find the offset in the file, which I will discuss with you in a later chapter. Also, standard
to catch exceptions
DECLARE EXIT HANDLER for not FOUND SET @info = ' no_such_table ';
Method VI: Use SQLEXCEPTION to catch exceptions
DECLARE EXIT HANDLER for SQLEXCEPTION SET @info = ' ERROR ';
3 Integrated Examples
Create a table, set the primary key for the table, and see where the execution is if you do not define exception handling and define exception handling.
show databases;
Use WMS;
CREATE TABLE Location
(
location_id int
Today a friend asked me how to implement the event in the program. So I summed up the HA sent out. To understand the event, you first need to know what the delegate is. Delegate in C # to allow developers
Passes a method in one object to another object that can call the method's class. For example, a method in class AC can be add[if the method is included in a delegate and passed to another class WMS. At this time the class
exceptionsDECLARE EXIT HANDLER for sqlwarning SET @info = ' ERROR ';Method Five: Use not found to catch exceptionsDECLARE EXIT HANDLER for not FOUND SET @info = ' no_such_table ';Method Six: Use SqlException to catch exceptionsDECLARE EXIT HANDLER for SQLEXCEPTION SET @info = ' ERROR ';3 Synthesis ExamplesCreate a table, set the primary key for the table, and see which step to take if you do not define exception handling and define exception handling.Show Databases;use
= ' no_such_table '; Method Six: Use SqlException to catch exceptions DECLARE EXIT HANDLER for SQLEXCEPTION SET @info = ' ERROR ';3 Synthesis ExamplesCreate a table, set the primary key for the table, and see which step to take if you do not define exception handling and define exception handling.
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show databases;use wms;createtablelocation(location_id intprimarykey,location_name varchar(50));
Example 1: Do n
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