These ActiveX components can be integrated in projects implemented on the basis of Visual C++/MFC. Integration in projects implemented on the basis of other solutions was not tested.
To change projection parameters representation press options button on Map Projection Parameters bar. This application supports representation of projection parameters as a list as well as PROJ4 and WKT lines.
MapProj component of ActeveX provides the universal interface for selecting parameters of cartographic projections and their representation in the form of a list, PROJ4 or WKT line. Besides, a mathematical tool is integrated into this component to re-project coordinates from one projection into another. Therefore it can be widely used in developing GIS applications, which require operations with cartographic projections.
You can check for available units of measurement to be used for distances conversion in the drop-down list of the application.
Magic LatLong component of ActiveX checks if values are input correctly when entering latitude/longitude. If a value is incorrect the entry field will highlight in red.
Magic Time component of ActiveX performs conversion from “date/time” of “year-month – day-hours-minutes-seconds” representation format to “year-day of year – hours-minutes-seconds”. Such conversion is used during processing of certain earth remote sensing data formats.
ActiveX components provided by GISEYE constitute a set of very user-friendly non-standard controls designed for cartographic and geo-informational needs. These components can be used for designing graphic interfaces for a large number of GIS applications.
During date/time conversion from the representation format “year-month – day-hours-minutes-seconds” to “year-day of year – hours-minutes-seconds” leap years are taken into account.
The list of coordinates of Coordinate Converter application is limited to 100 entries. So you can add coordinate pairs manually or download them from an external file keeping in mind that you can have not more than 100 coordinate pairs on the list.
To do that you need to set parameters of the output projection and press Convert.
To save the output list of coordinates you need to press Save below the field with output coordinates, enter file name and path in the save dialog and then press Save.
To ensure correct operation of the application, borders of a vector file fragment in Cut Segment field shall be set using the same coordinate system as the one used for setting coordinates of points in the vector file. For vector layers with points coordinates set in LatLong system the Cut Segment field shall be used to specify minimal and maximal values of latitude and longitude of the fragment to be cut out. If coordinates of vector file points are set in meter coordinates then the fragment borders shall also be indicated in meter coordinates.
Vector Converter application supports data batch processing therefore you can add all required vector files in the list of input files and perform their conversion in one go.
In order to combine two vector layers using Vector Converter application you need to give them the same name and add them to the list of input files. Then select Append in the drop-down list “If Exist” and press Convert.
All image parameters available for modifications by a user are shown in the application dialog. They include but are not limited to modifications to image format, raster size and color palette, fragment cut-out and selection of image output channels number, image re-projection and other parameters.
Using Raster Converter application you can convert an image into over 20 various formats. You may check formats available for conversion in the Format drop-down list of the application dialog.
Yes, you can cut out a fragment of an image. To achieve that you need to open Raster Converter application and select the Cut Segment box. Then you need to indicate minimal and maximal coordinate values for the fragment to be cut out in the entry fields and press Convert.
All updates to GISEYE applications and development tools are free of charge. You can receive up-to-date software versions from our website Download section at all times.
Yes, you can create your own applications and distribute them among users without any additional charges.
Protection of ActiveX components being part of GDK as well as MapProj ActiveX components is ensured via a key file. Availability of this file allows using ActiveX components in development of your own software products. This key file is issued via e-mail after registration and payment for the product.
Technical support is provided to registered users at software@scanex.ru
GISEYE project products are shareware type. Trial versions of the applications can be downloaded from the Download section. Payment for the licensed versions can be initiated on the Purchase page via the payment system. Upon payment you will get an e-mail with the activation key.
"ActiveX is an integration technology, while Java is an Internet language."
ActiveX and Java™ are complementary, not competing, technologies. First and foremost, Java is a programming language. Second, Java is a set of virtual machine bytecodes that can be executed on any platform running a Java Virtual Machine (VM). Third, Java is a set of programming interfaces that define the underlying services available from Java code.
ActiveX, on the other hand, provides a totally different set of benefits focused on integrating objects created in any language. That means that ActiveX makes Java more powerful by enabling it to access code written in any other language. This gives Web designers the flexibility to include multiple objects in a page (some built in Java, some in other languages) and have them communicate interactively.
While Microsoft® ActiveX™ and OLE are both based on the Component Object Model (COM), they provide substantially different services to developers. COM provides the low-level object-binding mechanism that enables objects to communicate with each other. OLE uses COM to provide high-level application services such as linking and embedding to enable users to create compound documents. ActiveX, on the other hand, provides a substantially "slimmed down" infrastructure to enable controls to be embedded in Web sites and respond interactively to events. While OLE is optimized for end-user usability and integration of desktop applications, ActiveX is optimized for size and speed. ActiveX also adds a number of important innovations for the Internet, including a substantial (50 percent to 75 percent) reduction in size, support for incremental rendering and asynchronous connections.
