Features	Download	Buy	News	Support

List of WiT 8.4 Features and Bug Fixes

New Features

WiT

• Link corners can now be individually selected, allowing portions of a link to be dragged or deleted.
• When dragging links with multiple segments, 90 degree corners are now maintained if possible, resulting in generally more pleasant looking links.
• Links segments that are horizontal or vertical now maintain their direction when dragged.
• New feature allows inputs to a operator to be redirected to a label operator when that operator fails in execution. This allows versatile error handling.
• In previous versions when a new igraph is started, the first step was always to make an instance of the 'start' operator. Although this was an easy step, it still became annoying. Now whenever a new igraph is started, a 'start' operator is automatically created near the upper left corner.
• Popup window position and sizes can now be remembered and saved as part of an igraph. Basic window position ability was available before but now this feature is much improved. More window types are supported, such as graph and image profiles. In particular, the image magnifier position and size can now be remembered so that it always comes up with the desired setting. Also, scale and min/max window sizes are also supported for some window types.
• New interactive parameter option allows an operator parameter to be updated immediately when its value is changed on the property panel, without having to click the OK button. This allows interactive viewing of the effect of a parameter change while an igraph is running. This is particularly useful for parameters with a slider or choice control.
• Added operator output port property to allow user to indicate that an output will re-use the data area from one of the forced consume inputs. This will allow data that are stored in memory cells or are being displayed to be consumed. Previously if 'force' is selected, in general WiT will crash on repeated execution of such an operator because the output is freed. By telling WiT that an output will adopt a consumed input, WiT can correctly keep track of when to safely free the data.
• Added operator group control to allow changing parameter display options and values of all selected operators by common parameter name
• Changed image display behavior such that when an image is displayed in an existing window with the same image type and size, and the X and Y scale parameters are set to 0, the display settings, especially the zoom scale and position, are not reset as in previous versions of WiT. This behavior is useful when studying changes in a magnified portion of a sequence of images.
• The 'in' and 'out' operators normally only used for subgraphs can now be executed at the top igraph level also. The input operator behaves like a 'rdObj' operator, with the operator name used as the file name to read from. The output operator behaves like a 'display' operator, with the operator name used as the display name. This makes it easier to test the behavior of a sub-WIC without having to first embed it in another igraph.
• A new option for the 'display' operator allows the equalization settings to be maintained when a new image is sent to the same 'display' operator. This allows the user to adjust the equalization interactive while the image data is continuously updated.

Engine

• The new 'in' and 'out' operator execution behavior works the same way as 'rdObj' and 'display' operators, allowing 'in' and 'out' operators to be used for interfacing with user applications.
• All windows can now be mapped to user windows. Previously only specific window types such as 'display' operator or graph could be mapped. Now windows such as image profiles and the getData mini-toolset window can be mapped.

Standard Libraries

• New operators 'onEmptyGoto' and 'onFailGoto' to allow more convenient handling of exceptions
• 'memRecall' has new parameter that allows it to fail if the named memory does not exist
• Added auto ranging and bin size options to 'histogram'
• New 'matchROI' operator set ROIs in image vector to intersection of ROIs.
• 'rasterize' now calculates a gray value from the graphic colors when forced to a gray scale output image
• 'createRect' now has 'fillColor' and 'penColor' parameters.
• Added 'createPt', 'createCircle', 'createTextGraphic', and 'createLine' operators to work in a similar fashion as 'createRect', for easy setting of individual coordinate values.
• Added elliptical arc to scan utilities, so elliptical arcs can be rasterized and used as masks.
• 'zoomScale' and 'zoomSize' operators were extended to convert points, real points, vectors of points and vectors of real points.
• added a random permutation mode to 'shuffleVector' and moved random number generator into utils.

Smart Libraries

• Added MMX support for Search library for 64 bit Windows version.
• Improved speed of the perspective calibration calculation.
• Improved speed of the perspective calibration restoration.
• Calibration is able to process grid images seen from the steep angle.
• Perspective calibration could be done for images with horizon line inside image.
• Perspective calibration could be done for two sets of arbitrary correspondent points. They still should be wrapped into grid structure. $ COR_CALIB_DEVIATION behavior has been modified. Reference points are found on the input image then it is subject to conversion and another set of reference points is found. Then sum of squares difference is calculated. In the previous version comparison was made with perfect square grid. $ COR_CALIB_GRID_DEVIATION: there are two input grids now. First grid is converted and sum of squares difference with second one is found.

Bug Fixes and Incompatibilities

WiT

• When dragging selected links that were connected to non-selected operator ports or link junctions, garbage graphics near the fixed ends was left behind sometimes.
• On image properties panel, color channels were shown in the order BGR. Now it is shown in the more familiar RGB order.
• Previously, if the profile or magnifier check boxes for the 'display' operator were unchecked, then when the 'display' operator is repeatedly executed, it was impossible to interactively turn on the profile or magnifier windows. Now the behavior has been changed such that if the profiles or magnifier windows are displayed, then even if the operator properties check boxes are not checked, the profile and magnifier windows will stay up.
• When an image is displayed and the image properties panel is shown, sending a new image to the same 'display' operator caused the properties panel to snatch the focus, making it sometimes very difficult to stop the igraph because the main WiT window kept losing the focus to the image properties panel. Now the image properties does not grab the focus when the image is changed.
• When a warning was issued, the status window always grabbed the focus, making stopping an igraph impossible if a flood of warnings were continuously issued. Now the status window does not grab the focus when a warning is shown.
• When an image had been zoomed in and 'normal size' was selected from the image menu, the origin was always reset to the upper left corner of the image. Now the origin is set so that the center position is maintained.
• When 'View all' was selected for a displayed image, the pixel scale was always reset to 1. Now the X and Y pixel scales are adjusted so that the pixel aspect ratio is maintained and the new image fits inside the existing window.
• When using MRU to load a previous file and the file was not there, WiT did not issue a warning message. Now WiT issues an appropriate message.

Standard Libraries

• 'graph' operator only displayed first word of curve name if name has multiple words. Now it correctly displays the entire name.
• 'ocrPerimRun' matching to first or second character in font with score of 1.0 in Range rotation mode.
• 'overlayData' showed labels on points too far from the point when at very large zoomed in scale.
• 'createRect' used to reject negative coordinates. Now negative coordinates are accepted.
• Default port positions for the 'K' parameter for operators like 'addK', 'subtractK', etc. now changed to 0 to line up the port with the icon graphic.
• random integer generator was producing a beating pattern in the generated numbers. Affected 'random', 'randSequence', and 'addNoise'.
• 'shuffleVector' operator was giving incorrect output vector length in the "Indexes" mode.