{"id":16320,"date":"2024-02-11T00:26:48","date_gmt":"2024-02-10T23:26:48","guid":{"rendered":"https:\/\/newone.onesails.com\/?page_id=16320"},"modified":"2024-05-16T09:38:42","modified_gmt":"2024-05-16T07:38:42","slug":"sailpack-vision","status":"publish","type":"page","link":"https:\/\/www.onesails.com\/da\/sailpack-vision\/","title":{"rendered":"Sailpack Vision"},"content":{"rendered":"\t\t
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<\/span><\/p>

SailPack-Vision is a free tool for image measurements. Just load an image, digitize shape stripes, measure distances and angles, superimpose other images and save measurements.Here are some tips that can help you to use this software.<\/span>
<\/p>\n

Interface<\/b><\/p>\n

Zoom: using the mouse wheel
Pan: using the right mouse button
Actions on an element can be accessed right-clicking on it.
How to digitize shape stripes on an image:<\/p>\n

    \n
  1. Open an image clicking on the ‘camera’ button in the main toolbar.<\/li>\n
  2. Select an image and press ‘ok’<\/li>\n
  3. Click on the ‘shape stripe digitizer’ button in the main toolbar.<\/li>\n<\/ol>\n

    A secondary toolbar appears:<\/p>\n

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    1. Click on the image, on the first point (luff side) of the shape stripe.<\/li>\n
    2. Press the ‘space-bar’ or click on ‘Pick mid’.<\/li>\n
    3. Click on the image, on a middle point of the shape stripe.<\/li>\n
    4. Press the ‘space-bar’ or click on ‘Pick end’.<\/li>\n
    5. Click on the image, on the ending point (leech side) of the shape stripe.<\/li>\n
    6. Press the ‘space-bar’ or click on ‘Find stripe’.<\/li>\n<\/ol>\n

      The software tries to adjust the digitized shape stripe to the one from the picture. To adjust manually some control points, just drag and drop them at the appropriate position.<\/p>\n

      To add a control point, keep the ‘shift’ key pressed and click the image where you want to add the point.<\/p>\n

      To delete a control point, keep the ‘ctrl’ key pressed and click on the control point you want to delete.<\/p>\n

      Once the shape stripe is digitized, right click on it and click on ‘Custom height’ and enter the height of the profile.<\/p>\n

      Repeat this process for all the shape stripes.<\/p>\n

      The shape stripe properties are displayed in the right column of the window.
      If you want to measure the twist of the shape stripes, you need to digitize a virtual shape stripe that you will set as your twist reference.<\/p>\n

      The reference can be for example a spreader if you know its angle. Just digitize it (same process as for a shape stripe) and right-click on it and select ‘set as twist reference’. Enter the angle of this reference and the ‘angle’ parameter of all the digitized shape stripes will be calculated using this reference.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      How to measure angles and distances<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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