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Easy Trace Pro 8.7.1650

  • The first vectorization stage – new project creation – has become extremely simple. It is enough to import frame (project boundary) from target GIS and new project will be automatically created. It is especially convenient when data are prepared not from “zero”. For example, when it is necessary to update vector data basing on imagery data.
  • Any information is used to become out of date. Sooner or later your vector data will require to be updated. But the cost of satellite imagery is still unpurchaseable. On the other hand the number of free cartographic services in WEB grows permanently. And Easy Trace offers new feature – Load imagery from Internet.

    After loading in Easy Trace data from your GIS you can easily “cover” them with available satellite images. At that it is not necessary to know parameters of your local coordinate system – they can be automatically defined by means of new tool.

    Nevertheless the accuracy of imagery reference is not enough. And so, after linking of loaded images they can be subjected to correction based on existing vector or image data. The process is simple and takes several minutes. You can take a closer look at it with video Using imagery from Internet for data renovation .

  • It is often happen to hear that accuracy of paper topographic maps is extremely low. That everything (as always) should be realized anew. On the other hand, it is assumed that referencing image by means of 10 frame points perhaps to be acme of perfection…

    Yes, there is a grid on the map image and every cell coordinates are known – by who takes to code more than 400 crosshairs? And who exactly points them at the image and never is wrong?

    So with using of image grid everything is as in saying “so near and yet so far”.

    Everything has been exactly so… till recently. Today Easy Trace offers new facility – Precise image correction basing on coordinate grid. It is logical completion of technological chain:

    Whole correction is reduced to call of Relink Image utility. How it works you can see in videos. But everything should be paid. Accuracy charge is necessity to repeat (after correction) the operations of black image extraction and grid detection. But it takes just several additional minutes – insignificant charge for the material quality that is succeeded to reach.

  • We consider the development of interactive object recognition tools to be very promising direction of digitizing automation. In contrast to traditional tracing tools they work not over image but over vector data resulting from automatic tracing. More precisely, they work over vector data that remained after using of automatic recognition utilities.

    The advantages of such approach are as follows:

    1. as distinct from image vector lines are already sewed together and filtered;
    2. when constructing a line it need not to be traced – it (or most of its fragments) already exists;
    3. line can be extracted from such scarps heap where traditional image tracer goes crazy.
  • The Line Searching tool can work in two modes of route choice: Auto-search and Cursor Tracking. When in second mode, even if target line is very long and lacerated, it can be enough to specify two points – at the beginning and at the end of line.
  • The utility Ortho-object detection is re-worked. It efficiently extracts ortho-objects from maps of different scales. For example, when processing topographic maps, it can extract up to several thousands of city blocks at once. At that it can classify extracted blocks by sizes basing on user defined patterns.

    The ortho-object detection algorithm is also improved. At that when processing maps of vast scales (1 : 500 – 1 : 2000) it is possible to recognize objects having non-orthogonal edges. The example of utility working can be found here.

  • The new mode of fast rectangle generation if implemented for Rectangle tracing tool .

    The destination of this mode is fast digitizing of large number of rectangular objects of the same type. For example, when developing targeted plan basing on imagery. After digitizing one rectangle one can copy it just pointing it with right mouse click and then quickly place other rectangles of the same size. It is clear that one can copy and place vector rectangles of any size.

    When placing a rectangle near existing polyline (for example, block boundary) , the rectangle orientation is automatically adjusted to this polyline, and its vertices are snapped to the polyline with making common vertices or nodes according the topological rules.

  • Attribute processing is stigmatically re-implemented. At now they are loaded into memory along with project data. This noticeably accelerates object attribute access during utilities execution and thematic displaying of objects. Besides, now attribute changing can be cancelled by means of UNDO operation (and, correspondently, can be restored with REDO operation). This applies both to attribute values and attribute structure modifications.
  • New operation, Other, is added in selecting objects by query, in Group editor. This operation is available for attributes having restricted domain values. This allows selecting of objects having incorrect attribute values, not constituent into domain. These objects can appear after importing objects from other sources or after moving (or copying) objects with attributes from one layer to another one. Before such objects could not be selected by query and one should “catch” them by means of attribute table browsing.
  • Shift \ Resize Polyline Tool is improved.

    Currently it can modify several objects at once. The objects can be previously selected with Group Editor or pointed with holding SHIFT key.

    This facility appears as means of fast processing of large number of small-size polygonal objects (for example, lakes). During image processing and following auto-tracing such object can be diminished, and there can be several thousand of such objects per map sheet.

  • The thematic displaying of objects selected with editor is improved.

    Currently the selected displaying is closer to thematic one. For polygon object thematic fill pattern is used (but not standard as before), and for point displaying thematic block is used.

  • The approach to relief contour processing is revised. Before, at elevation assigning stage, the contours were separated into different layers depending on their types. Then, after elevation assignment and verification, all contours were moved to one layer (that is more natural for GIS approach). Currently all contours can remain inside one layer during whole processing, and their type can be defined by value of specified attribute.

    This relieves the relief processing of a number of operations that were not difficult but slightly unusual for GIS-users.

    Correspondently, the window of relief parameters setup has been changed:

    • The whole list of possible layers containing contours and elevation points should be defined beforehand.
    • The way of contour type identification can be defined either by layer (as before), or by specified attribute value.
    • The display parameters of all contour types are defined it the same window. Before one could specify only line width, but its type was taken from layer parameters.

  • Import Wizard is re-worked:
    • For a number of imported formats the automatic creation of new project is available. This allows avoiding the determination of project bounds because they are automatically defined during importing.
    • The attributes import is changed: if imported data contains attributes they are imported into corresponding ET project structures. If these are no appropriate structures in the project they will be optionally created. One can restrict the import to vector data importing only if there are no corresponding tables and the option of their automatic creation is switched off.
    • When importing another ET project all attribute settings are imported (domains, attribute prompt icons and fill patterns).
    • The proper import of smoothed curves from DXF is realized. Before reference points were falsely imported along with curve points.
  • Export Wizard is re-worked:

    SHP and MIF formats, the new options added that allows exporting block inserts as point objects without additional attributes (type and slope).

  • The Layer Manager window is essentially re-developed.

    At the moment this window works over the project window not blocking up other tools, and all modification made in it are immediately applied.

    • The visibility control marks are added into the group tree.
    • One can delete not only groups (folder) but also layers. It is convenient when integrating data received from several operators during layer-by-layer “conveyer” processing.
    • When group is removing all its components (both layers and subgroups) are moved to upper level, but not to the root as before.
    • Currently there are always exactly two groups at the tree root. And these groups always have fixed names – “Image layers” and “Vector layers”; they can be neither removed nor renamed. There are no layers at the root – all layers are distributes between 2 main groups and their subgroups. And they can not be mixed: i.e. it is impossible to move image layer to vector layer group and vise versa.
    • Multiple drag-and-dropping of layers and groups are implemented.

  • Layer \ Object Attributes dialog are re-implemented. Currently it is called just “Attributes”. Project Databases dialog is removed as not wanted. The layer and the object type are currently selected in the same Attributes dialog.

  • Object Attributes dialog is corrected:
    • Before when showing of Domain Item Parameters dialog, it receives the value of current attribute but not the value of thematic one.
    • After closing Domain Item Parameters dialog there were no updating in the Object Attributes dialog (though picture and description could be changed).
  • Project Properties window is re-developed.
    • The pages Options and View that before were contained in Project Parameters dialog are moved to this window. Also Topology rules setting pages are moved here.
    • Navigation between property-pages is executed by means of pages tree at the left pane of the window.
    • At Coordinates property page, the project frame definition is implemented in the same way as in Project Creation Wizard – frame field that displays selected frame side and allows switching to corresponding coordinate field by click.
  • Text Styles dialog are improved. The ability to selective or multiple item removing is added.

  • Some bug fixes

    • Incorrect displaying of line types after export is fixed. Also incorrect line type import into ETL format is fixed.
    • At importing one ET project into another having different scale, proper line type displaying is improved.
    • Import and export of line types having commas in names are corrected. Some errors in AutoCAD LIN format import are fixed.
    • At exporting into AutoCAD DXF and DWG formats, the restriction to exported symbol names is added.
    • At exporting MIF, the bug is fixed: column names can’t contain points.
    • Buffer zone generating utility: the bug with point zone generation is fixed.
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