Sunday, 22 February 2015

Making of Zoom To Selection Part4

...continued from part3

These window coordinates are then used to zoom to area as below:

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Finding range of selected objects can get trickier when there is single object selected like a line which is either horizontal or vertical. In case of a horizontal line, y-coordinates of the Lower-Left and Upper-Right corners become same and when translated to window or screen coordinates do not become acceptable for Zoom Area.

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In such cases, it is necessary to check and if the coordinates are same, increment them slightly, say 10%, so that it forms a valid window for Zoom Area:

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This concludes the programming part.

To download the source code and the program continue to Part 5...


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