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Revision 0. As many have done before wingis 2003 free download, I immediately recognized the value of reusing code and objects and began developing simple ActiveX components in Visual Basic 5.
At about the same downloaf, I began work on a fascinating and challenging doctoral research project that had a large GIS software development aspect. While this product was robust and effective singis most of our needs, it had a few functional deficiencies for our particular project and, perhaps more significantly, it had an associated license wingis 2003 free download would make our product cost-prohibitive to redistribute. The world ссылка на продолжение free and open source GIS wings still in its infancy at that time, and there were no free or open source GIS mapping components -5DRAFT available specifically for use in rapid application development environments such as Visual Basic.
As a result, our research group began developing our own mapping components. In earlythe Idaho National Laboratory, a major federal funding source for our research, released much of the MapWindow project source code по ссылке the public domain.
In AugustI took a position at Idaho State University and brought the public domain source code with me for continued development and use. In January a new web site, MapWindow.
With the help of some directed advertising using Google AdWords, the MapWindow GIS project quickly began to gain a large user community of people who had a similar need for a fast, efficient, and free GIS mapping component. As of this writing downloads from the MapWindow. These include 1 20033 active discussion forum where users post questions and answers on a variety of ongoing topics; and 2 a live WIKI site that includes documentation and sample wingis 2003 free download for most of the functions and objects in the MapWinGIS Active control.
This book is not intended to replace either хорошем need for speed hot pursuit pc download думаю these resources, but rather is meant to serve as a formal step-by-step introduction to using the component, suitable for use as part of a semester long course on GIS software development.
In recent years, the commercial GIS software industry has been supplemented by a thriving free and open source GIS developer community. From the perspective of GIS dree software development these products generally fall in one of three categories that correspond to three unique GIS software development paradigms. These paradigms are: 1 development of plug-ins and extensions which add additional functionality to existing desktop GIS systems; 2 development of web-based mapping and data visualization tools; and 3 development of custom movie maker mp4 plugin download applications using GIS programming components.
ArcGIS is used as a teaching and research platform in most major downlkad geography programs, and the software is found in government agencies and large engineering and environmental consulting firms throughout the world. While ArcGIS is primarily a -8DRAFT desktop data analysis package, it also is extensible through the development of extensions, scripts, and tools that can be written in several different languages.
This extensibility has made ArcGIS a popular platform ссылка на подробности distributing analytical tools, models, and other custom functionality to thirdparty end users.
In some cases, an individual or company may find that redistributing custom tools developed in a commercial software application is not particularly wingis 2003 free download. The high cost of commercial GIS software platforms may create a problem, especially when the custom tool is intended for use by individuals and entities who may not have the financial resources necessary to adopt expensive commercial wingis 2003 free download.
Take, for example, a small engineering company that has produced a battlefield heroes free download pc game wingis 2003 free download for tracking merchant shipping vessels in the Pacific Ocean— having based the tool on a commercial software package. If the company wants to sell their ship tracking tool to a third party, they must ensure that the purchaser already has a copy of the commercial GIS platform.
In such wingis 2003 free download scenario, it is possible that the ship tracking software tool would be sold for much wingis 2003 free download than the cost of the GIS platform. This being the case, does it make sense to require the end users to pay wingis 2003 free download additional overhead for the commercial GIS package?
Another challenge that can arise is related to the level expertise required to operate large complex commercial GIS software products. Indeed, it is very probable that many of the readers of this book have taken semester long courses dedicated to learning wingis 2003 free download of the functionality wingix particular desktop GIS packages.
Certainly a high degree of functionality is not a negative thing when one is a trained professional GIS analyst. However, what about the individual who has not taken formal GIS training courses? Considering the ship tracking application again, it is likely that the downnload users of this product will be trained in management, business, and possibly even ship piloting, but probably not formal GIS analysis. This being the case, presenting those users with all of the functionality, and required -9DRAFT training and learning curve associated with commercial desktop GIS applications may be unnecessary extra burden.
Winigs example, a fred spatial interpolation method that is likely to be used only by trained GIS analysts, is a good candidate tool to be built as a plug-in or extension to an existing GIS software package. Many software development and location based service provider companies have addressed this problem of needing to keep their map based applications simple by moving them to the Internet.
Such sites provide general location information, driving по этому адресу and even satellite imagery when fee. Also a variety of government agencies at all levels have also begun to distribute geospatial data on web-based maps. Such applications can be used to provide downloac with information as varied as census data, wingis 2003 free download weather warnings, election results, and much more.
Coincident with the current proliferation of map-based web sites, has come a proliferation of web-based GIS tools. All of these tools follow a common development approach based largely on display of and relatively minimal interaction wingis 2003 free download static images generated by wingis 2003 free download based mapping engines. Many applications are suited to this software development paradigm.
Certainly the best fitting GIS applications are those that require only minimal map нажмите сюда, and are focused primarily on the dissemination of data to a wide audience.
The third GIS software development paradigm noted above— development of custom standalone applications using GIS components—is the primary focus of this book. The governing premise of this paradigm is the need wingis 2003 free download place highly wingis 2003 free download GIS enabled software tools on the desktop computers of end users. The dodnload tracking example application mentioned previously could be considered as a good candidate for the standalone software development paradigm.
Download usb recovery drive a graphical user interface for the software that requires a single form with three separate wingis 2003 free download, five buttons and wungis menu items. Ignoring for the moment exactly what the buttons and menu больше информации will do and what will be displayed on the maps, it should be apparent that such a simple form does not necessarily require all of the overhead of a full GIS desktop application, wnigis hence the standalone approach is more suitable than the plug-in or extension approach.
Likewise, by simply adding the need for deployment of the software on ships that do not have live internet access, the standalone approach becomes clearly much more suitable than the web-based mapping paradigm. In summary, this is an exciting time to be a GIS software developer due to the many available developer tools, and interesting projects with different requirements and needs. Wingis 2003 free download no particular GIS software development paradigm will fit every project and every need, the standalone approach is well suited to a variety of applications and is the focus wingis 2003 free download this book.
The remaining chapters are divided into two sections. This section can be used as part of a course on custom GIS software development. This wingis 2003 free download is intended to wingis 2003 free download used as a reference guide to the component.
All code examples and screenshots in this book are based on Microsoft Visual Basic. NET Express Edition. You will learn how wingis 2003 free download download and install the latest version of the MapWinGIS ActiveX control; how to add a reference wingis 2003 free download the MapWinGIS ActiveX control within Microsoft Visual Basic Express Edition; how to add a map component to a wingis 2003 free download how to add a shapefile layer to your map; and how to perform basic zooming and panning functions on the map.
Because of this, you should always consider acquiring the latest version of the component before beginning any new development project. You can find the installer by inserting the CD into your hard drive and following the link on the нажмите сюда start wingis 2003 free download page that should automatically load.
This will be wingis 2003 free download latest version of the component at the time of preparing this book. If you want to ensure that the examples you wingus in this book are identical to the version of the component that you are using, then you should use the version that came on the CD with this book. The latest installer for the MapWindow GIS desktop application can be found on the MapWindow project web site, and a version of that installer is also included on the CD with this book. If you take this approach, you will be on the bleeding edge, using a version of the component that has not been released for public consumption, but has any and all of the very latest features and bug fixes and maybe new bugs!
Downloading the source code and recompiling the component are topics beyond the scope of this book, but you are welcome to take this approach if it fits your needs.
NETC. Others have used the component in Borland Delphi. In this chapter and the remainder of this book, Microsoft Visual Basic. NET Express Edition will be used for all examples.
Some code samples for the other programming languages can be found on the MapWindow project web site. Once you have installed the MapWinGIS ActiveX control on your development computer, the most important step is to register the component with the system registry. Successful registration of the component will return the following confirmation: If the registry server fails wingis 2003 free download register MapWinGIS on your system then you are likely missing dkwnload required wingis 2003 free download file.
MapWinGIS has a limited list of required dependencies which are required for the component to work. All of the dependencies are Microsoft runtime libraries and most will likely already be on your computer—especially if you have already installed one of the Microsoft development tools.
Note that this can take a few minutes to load depending on the number of COM objects on your computer. You are now ready to start viewing data! We will start with viewing vector shapefile data. The code to load a single shapefile into your map is very simple. Using the component names presented here will help ensure that your screen looks the same as the screen images shown here. Shapefile sfWorld.
There it is! For this and other code samples in this book, we will take the approach of 1 showing the full code snippet; 2 showing the expected results wingos output; and 3 walking through the key parts of the code for which further explanation is useful.
Shapefile object. Here we are simply creating an instance of an empty wingis 2003 free download object with the name, sf1. Image object. For example, you may want to change the outline color of wingis 2003 free download countries layer before displaying it in the map.
Then you would change the outline color on the layer, and finally, change the visible flag to true. We will learn how to do this in a later chapter. Now that your first map application is running, you can try using the zoom functions on the map.
To zoom out, simply right click on the map. In this section you will add a tool strip with four buttons to expose the following functions: zoom in, zoom out, pan, and zoom to full extents. You will downlod these buttons to the appropriate functions in MapWinGIS and have fully functioning map navigation. First place a ToolStrip component on your form.
We will use the ToolStrip for the navigation buttons. Add four text buttons or graphic buttons if you are adventurous to the ToolStrip. Instead wingis 2003 free download the ToolStrip control, you could also do this example using four simple command buttons. We will use the ToolStrip control winigs the remainder of this example.
Add code to the subroutine stubs for each of the Click event fownload each of your buttons.