LLC "RusBITech-Astra" and JSC KB "Panorama" have successfully completed testing the compatibility of GIS Constructor for Qt Designer x64 and the "Geoportal Region" software package. These certificates confirm the operability and correctness of the joint functioning of the special-purpose operating system Astra Linux Special Edition and the GIS Constructor software for Qt Designer x64 and the complex for maintaining the regional geoportal "Geoportal Region". Compatibility certificates were prepared on the basis of protocol No. 15466/2023 dated December 6, 2023 and No. 15468/2023 dated December 14, 2023 of RusBITech-Astra LLC.

The complex of conducting the regional geoportal "Geoportal Region" ensures the collection, processing and analysis of spatial data in the interests of the information system for managing the socio-economic development of the region. This allows you to make weighed and informed decisions in various types of activities: urban planning, cadastre, agriculture, transport, ecology, healthcare and others. A specialized regional geoportal is being built using serial domestic software from KB "Panorama". GIS "Panorama" provides employees of various departments with functionality for preparing digital maps, which are subsequently placed on a spatial data server managed by GIS Server SE. The spatial data service GIS WebService SE ensures the publication of materials on a regional geoportal under the control of GIS WebServer SE. For the convenience of users, industry data layers are grouped into industry projects, access to which is determined by role and rights.

GIS Constructor for Qt Designer SE is a set of geoinformation components for use in the visual programming environment of Qt Designer, which allows you to develop your own GIS applications. The visualization of the contents of digital maps is made in conventional symbols adopted for topographic, geographical and various special maps. Geoinformation system has ample opportunities for performing calculations, for providing display of spatial data on various graphic devices in standard and user systems of conventional symbols. The main functions can be executed in multithreaded mode. It supports automatic optimization of used memory for processing large amounts of data (tens of gigabytes) on limited resources (hundreds of megabytes).

The complex for maintaining the regional geoportal "Geoportal Region" and the GIS Constructor for Qt Designer SE are included in the Register of Domestic Software and are certified in the information security certification system for information security requirements for processing information classified as "secret".

Geoportal "Bank of spatial data" has been supplemented with a map of the Republic of Sierra Leone, formed according to OpenStreetMap data. To work with the map, you can use the GIS Panorama Mini program or other software products of KB "Panorama".

The map was led to the modernised classifier of large-scale plans of scale 1: 5 000 (map5000m). Publishing of updates in bank of spatial data is made by using the program of Databank of digital maps and remote sensing data. Publishing contents of bank of spatial data on the geoportal and data access for downloading are implemented by means of GIS WebServer SE.

Free maps on the basis of OpenStreetMap data are available for download on the page "Digital maps".

In KB "Panorama" the GIS Constructor for Qt Designer SE version 15.0.1 has been developed. In the new version a support of WebP format has been added, display of matrixes of heights and depths with smoothing has been accelerated. The ability to open spatial data via the WCS protocol has been implemented, the list of available MAPAPI interface methods and supported geoportals has been expanded.

Connection of spatial data in Mbtiles, BIR, GeoPackage formats has been improved. The new version adds support for the WebP format, used to compress images in Mbtiles, BIR, GeoPackage databases and geoportals. The Webp format allows both lossy and lossless image compression. The format is based on algorithm of compression of the still image (key frame) from the VP8 video codec. Uses a RIFF container for storage. On average, it compresses images 40% more efficiently than the JPEG format. It is widely used for transmitting data and images in geoportals. Due to its smaller volume, it allows to accelerate data transfer. The task of connecting geoportals has been improved. There is added a new geoportal - Topographic maps of the world.

Drawing matrixes of heights and depths with smoothing has been accelerated. The display of smoothed matrixes is decomposed into threads, which significantly reduces delays when working with them. For example, on a 4-core processor with a clock frequency of 3.5 GHz, the speed of displaying the smoothed matrix increased by 2.5 times.

Possibility of connecting digital terrain models via the WCS protocol has been added. Connection to WСS-сервису is carried out on the basis of standards the OGC 09-110r4 Web Coverage Service. At the same time, data from any number of WCS services can be opened together with data from geoportals, data from GIS Servers, and locally open data. To increase the speed of working with the WCS service, data caching is supported on the client. The information received from the service allows you to create 3D terrain models onto an area of any size, up to the surface of the entire Globe.

The list of available MAPAPI methods has been expanded. The list of methods for editing signature text includes methods for setting text into a subobject with division into lines, adjusting text to the size of a rectangular area, and setting general text alignment. Function of exporting MTW into TIFF has been implemented, allowing to set a height format, algorithm and level of compression, sizes of a tile, value of a pseudo-code and other parameters. Methods have been added for displaying selected lists of objects with custom styles (specified conventional signs) in the open document. It allows the user to group objects into lists and to set own style of display to each list. Custom styles are a set of conventional signs by localizations.

GIS Constructor is a set of geoinformation components for use in the visual programming environment of Qt Designer, which allows you to develop your own GIS applications. The visualization of the contents of digital maps is made in conventional symbols adopted for topographic, geographical and various special maps. Geoinformation system has ample opportunities for performing calculations, for providing display of spatial data on various graphic devices in standard and user systems of conventional symbols. The main functions can be executed in multithreaded mode. It supports automatic optimization of used memory for processing large amounts of data (tens of gigabytes) on limited resources (hundreds of megabytes).

The toolkit is adapted for work on a wide range of operating systems (Astra Linux SE, ALT Linux, Elbrus, Ubuntu, CentOS, QNX) and architectures (Intel, Elbrus, PowerPC, SPARC, ARM). The toolkit includes components of visual designing the GIS applications and library of a multiplatform multithreaded GIS core. GIS Constructor provides a cross-platform MAPAPI interface that allows a programmer to implement development in an operating system convenient for it. The developer can release GIS applications for a set of operating systems by simple assembly with minimal changes to the program source code.

The new version of the program is available for download in the Download section.

Specialists of KB "Panorama" have prepared a video lesson of formation of a vector sign with using the "Сlassifier Editor" task in the GIS "Panorama", "Workstation of cadastral engineer", "Workstation of agronomist" and other software products of KB "Panorama". To display off-scale point and vector map objects in the classifier editor the "Vector sign" view is used. Vector signs are formed by means of tools of drawing linear and areal contours and drawing of inscriptions. The image of a vector sign can consist of one or more shapes (elements).

The video lesson demonstrates the work of the "Vector sign editing" dialog. Dialog contains a line of tools of signs editing, the panel of attributes of signs display, the table of elements of a sign and additional tools of sign editing.

The line of sign editing tools contains modes for creating and editing sign elements and inscriptions. In it the possibility of loading a file of the image in formats png, jpg, ico, bmp has been added. The background image allows to put vector contours by a raster sample.

The line of attributes of signs display contains modes that affect the display in the map. Into the panel there were added the modes "Text element specifying the width of the character" which allows to take into account the length of the text when displaying the sign and "an Element maintaining proportions". This property allows you to maintain the proportions of the element when expanding the sign.

You can view the training materials in the "Video lessons" section.

In KB "Panorama" the "Workstation of agronomist" version 15.1.2 has been developed. In the new version, the "Satellite-based field recognition" mode has been updated, the "Lists of objects" dialog and the "Map Legend" task have been improved. The integrated application of the "Workstation of agronomist" modes implements automated technology for maintaining a land bank and soil fertility base.

The updated mode "Satellite-based field recognition" ensures recognition of the boundaries of agricultural land contours based on Earth's remote sensing data. The program interacts with the Mapflow.ai service and, using a neural network, automatically deciphers and delineates the boundaries of working areas of arable land. The new version changes the user authorization protocol for the service, including the use of tokens issued in the user’s personal account. Information processing is performed in a local area limited by the polygon indicated on the map. The construction area can be specified by a rectangle or an arbitrary closed polygon. The construction of a vector model of working areas of arable land is carried out on the basis of automatically selected current remote sensing data of medium (10 m/px) and high resolution (1.2 m/px). In the new version a recognition of fields boundaries from Sentinel-2 images has been added. The vector data constructed by means of service is automatically loaded into the GIS "Panorama" from GeoJSON format onto a map of the working areas of the agricultural enterprise. The field map is used to maintain field passports, construct thematic cartograms, obtain vegetation indices, maps of heterogeneity and nitrogen requirements, calculate the application of fertilizer doses and other agrotechnical calculations.

In the process of maintaining a land bank for an agricultural enterprise, the boundaries of field contours are often compared with the boundaries of cadastral objects. Determination of intersections and overlaps is performed using the "Object intersection calculation" mode. For clarity of the results of the analysis of the relative position of various groups of objects in the form of thematic layers, the "Lists of objects" dialog has been improved. Possibility of displaying list of objects by style (conventional symbol) customized by the user has been added. In the "Lists of objects" dialog, custom styles are automatically formed for the selected lists of objects. Custom styles for displaying lists of objects are a set of conventional symbols for polygons, lines and points. Style sets can be combined into themes. New features allow you to quickly add lists by selected objects on the map and perform tasks with lists: Building a zone around objects of the selected list, Cutting objects, Union of objects, Building the areas of objects crossing.

The application task "Map Legend" has been improved. Display of named lists of objects in the legend dialog has been added. Enabling and disabling the visibility of object lists is done by simply clicking the left mouse button on the icon corresponding to the list. On the map, lists of objects are displayed as separate thematic layers in accordance with user-customized legends. The composition and order of display of thematic layers in the general data list is controlled by enabling and disabling the visibility of the list of objects in the bottom panel. The convenience of designing the appearance of thematic layers has been improved: assigning a style and color to the list of objects has been added. Simple addition of selected objects into the list with automatic formation of names has been implemented.

The new version of the program can be downloaded on our website in the Download section.