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Showing results for tags 'Stretch'.
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In a recent posting, @MaximusNZhad been creating panoramas, but had found that the upper and lower parts of the image were compressed with respect to the more central parts. He posted a message in my thread on Wrapping a label round a bottle since this also involved such stretching and squeezing. I posed a temporary solution to his/her problem, but I present here a more general solution. This is based on the S-curve, familiar to those using the Curves tool. The default shape for the curve is a straight line between the origin and the (w, h) position at the top right. The parameters of the macro will distort this linear relationship. I will elaborate on the mathematical aspects in a later posing in this thread. Consider a simple grid: By varying a parameter a, the image can be distorted horizontally. Values of a larger than 0.5 will stretch the left and right whilst compressing the centre; values less than half will stretch the centre whilst stretching the left and right. See the image below: By varying a parameter b, the image can be distorted vertically. Values of b larger than 0.5 will stretch the top and bottom whilst compressing the centre; values less than half will stretch the centre whilst stretching the top and bottom. See the image below: Here is the macro as a single macro and as a library: S-curve.afmacro S-curve.afmacros John
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Several times I have replaced a linked photo in a frame with the same photo (by name) from LR that has been retouched. As soon as I export the photo from LR, the link updates the photo in APUB. Occasionally, but not always, the replaced photo stretches side-to-side so that people look "fat," for example (the aspect ratio widens). The only way I have found to fix this is to remove the frame and redo the frame and photo. It is my practice to set up a photo without cropping it, so I adjust the frame/photo so that the entire photo is visible edge-to-edge. I have not found out what situation might be causing this issue.
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Hi, Say I stroke a closed shape with a Vector Brush (in Designer). There is always a gap at the terminal point. Say you don't want the gap. No matter how you edit the brush's Properties – including Head or Tail Offset, Overlap, Pull, etc., – there's always a gap at the closing node. Is there a trick I don't know? (Besides opening the curve and tugging the end nodes for visual stroke overlap.) Wouldn't visual vector-brush stroke closure be a desirable feature for some/many purposes? ¿Could this option be designed into Brush Properties, in a later A.D. update? thanks in advance, – pbass
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'morning guys/gals, 2 quick questions please (and thanks): 1) in the image below (thumbnail and file attached) you will see a logo image that was originally on a black rectangular background. I cropped the L and R sides to get rid of portions of the background so as to create an even-ish border. How can I get rid of the still-remaining blue lines outlining the original boundaries of said black rectangle background? ...and, 2) in order to distort/stretch this image (logo portion), don't I simply 'convert to curves' the grouped layers then click/drag whichever node I'd like to 'pull' on? My goal is to be able to manipulate the image by independently move nodes to create perspective changes in some cases, or make the image look curved in other cases (as if on a cylindrical surface such as a telephone pole, etc). Does the image/layers need to first be flattened. Big thanks from a newbie! -Christo CVlogoBlueCropLines.afdesign
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I love the possibility to stretch a curve directly (no need to control both handles). And I like the “organic forms” we can achieve with that options. But there are situations where we would need to stretch curves maintaining handles direction (even if that handles are not horizontal or vertical) My suggestion is: — Direct manipulation of curve ---> actual behavior — SHIFT + direct manipulation of curve ---> modify curve maintaining handles direction Next capture shows a practical case maintaining HV handles (very useful for corners):
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- stretch
- path curves
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