Products - VISCO in action

Compass

The following image displays an application with a centric non-stationary compass. This compass visualizes a rotating and fading tick complete with the imaging time (history mode). The current tick is accompanied by a label, which changes its point of suspension depending on the position of the tick in the compass. The compass rotates with the map and always points north. However, it remains stationary when the map is moved. There is also a compass that serves as an additional vector symbol, which moves with the map.

Here there are also PNG symbols with the background colour faded out, which are visualized over the background of the map. These do not rotate when the map is turned and can be read in all positions.

Map / Graphic Editor

Some of the available vector primitives can be seen on the "VectorPrimitives" screenshot:




  • Point and line primitives in different styles
  • Speech balloons (automatic adjustment of the position of the text depending on the angle of rotation)
  • Spline (interpolating)
  • Point-direction / directions (with or without label - also with positional adjustment, scalable on a sliding scale)
  • Geo position (as geographic, MGRS, UTM, GEOREF, UPS)
  • Filled circle
  • Filled ellipse, fully rotatable
  • Polyline and polygone
  • Surveying line
  • Text

Map / Graphic Editor / Surveying

Surveying

Labels can be configured


  • With partial distancing
  • Without partial distancing
  • Entire distance only
  • With geo position
  • Without geo position

Geo Position

  • as geographical
  • MGRS
  • UTM
  • GEOREF
  • UPS

MTI Imaging / SAR / Player

Treeview for displaying scans grouped according to mission. Player for playing back the time-based data (MTI scans) with a large number of setting options (colour, symbols, history, loop etc.)

Map / SAR Image / Overview /Scale Bias

  • Design example to demonstrate Visco's capabilities
  • Three simultaneous render windows
  • Overview window displaying the image and map position; can be hidden
  • Treeview for superimpositions (images, vector layer)
  • Views can be linked - zoom and move
  • Justification (to north) can be fixed
  • Resolution of the images and maps
  • Contrast and brightness settings

Cutting

In the CUT screenshots the centre of the images are linked in the two display surfaces. The original image is displayed above, the cut image below. Under normal circumstances, the GeoTIFF standard (3 pass points) is used for referencing. It is possible, however, to set as many reference points as you want to enhance the referencing accuracy. VISCO saves cut images in GeoTiff format.

Georeferencing

When geo-referencing an image, the geo-position of the reference point is placed in the reference image (lower map display window), while the pixel position of the reference point is placed in the image to be geo-referenced (upper display window).

For quicker referencing, 3 pass points (GeoTIFF standard) are normally used for referencing purposes. It is possible, however, to set as many reference points as you want to enhance the referencing accuracy. For 6 pass points and above deviation between individual pass points is calculated relative to the other pass points. This enables the user to correct inaccurate pass points immediately.

Pass and control points and pixel position can be adjusted independently of each other using Mousemove.

Superimposing

This is an example of how the image that we georeferenced on the previous page is superimposed on top of the map. The SAR image is displayed at 20% transparency. This allows the detail of the map below to appear through the SAR image. It's great to see how the Bodanrück peninsula in the Lake Constance region now stands out vividly. The slight colouring of the SAR image through the map and the relief-like presentation of the SAR data enhances the contrast, making it considerably easier to navigate within the image. By highlighting roads, rivers, water and buildings the information on both data sources are complemented perfectly.

Geodetical Reference Systems

The following page draws on two screenshots to demonstrate how different geo referenced data can be displayed for master referencing purposes.

In the first screenshot a Lambert referenced (conical) map (large image) has been positioned over an orthogonal-referenced map. The effect of this is that the original conical data is now orthogonally biased. The boundaries form an inversed conic projection.

In the second instance the large map is the master. The second smaller map is underneath the large map. To this end, the smaller map is now biased on top of the conical reference (Lambert) of the master.

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