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Edit: Seems I was wrong on one of the earlier assertions. No need to read through this if you don't want to.
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Edit: Seems I was wrong on one of the earlier assertions. No need to read through this if you don't want to.
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Although I'd like to note how I would find it very confusing to place the cursor on something before zooming and then, instead of the center of view or the cursor target being the fixed point, it's reversed and you'd drift away from the target rapidly. I'd need to see it in action to properly judge, but I don't think I've ever had that anywhere else.
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I skipped a few assertions on that question to get to my point. Let me make this clear:
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I skipped a few assertions on that question to get to my point. Let me make this clear:
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If I understand you correctly, you want the point under your mouse cursor to move towards the (horizontal?) center of the screen when zooming in. Thus, after just a short period of time, it will no longer be below your mouse cursor.
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If I understand you correctly, you want the point under your mouse cursor to move towards the (horizontal?) center of the screen when zooming in. Thus, after just a short period of time, it will no longer be below your mouse cursor.
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I assumed that in this case it was intended for the original point converge towards the screen center, with the intent of centering on whatever your cursor was initially on.
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I assumed that in this case it was intended for the original point converge towards the screen center, with the intent of centering on whatever your cursor was initially on.
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However, you might decide that you no longer want to focus on that particular thing mid-zoom in some cases. Here I assumed that as long as the mouse cursor isn't moved during the zoom, it would keep centering the original point, even though it no longer is directly below the cursor (if the cursor isn't in the middle of the screen, obviously), but it would update the "target" point when you move the mouse.
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However, you might decide that you no longer want to focus on that particular thing mid-zoom in some cases. Here I assumed that as long as the mouse cursor isn't moved during the zoom, it would keep centering the original point, even though it no longer is directly below the cursor (if the cursor isn't in the middle of the screen, obviously), but it would update the "target" point when you move the mouse.
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I'd like to point out that updating the target mid-zoom for this zoom algorithm will mean that zooming in with the cursor moving near the edge of the screen would mean your target point would [i]quickly[/i] shift north and you could actually cover a lot of distance in that direction very quickly, which doesn't seem like an intended effect to me.
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I'd like to point out that updating the target mid-zoom for this zoom algorithm will mean that zooming in with the cursor moving near the edge of the screen would mean your target point would [i]quickly[/i] shift north and you could actually cover a lot of distance in that direction very quickly, which doesn't seem like an intended effect to me.
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Better zoom in?