Opportunity Route Map |
Opportunity Route Map |
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![]() The Insider ![]() ![]() ![]() Group: Members Posts: 669 Joined: 3-May 04 Member No.: 73 ![]() |
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#2
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Senior Member ![]() ![]() ![]() ![]() Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 ![]() |
Yes, but which is the resolution of that image?
Take this picture ( The distance between points A-B in the non-projected picture is 2 x 105 pixels @ 1.45 m/pix = 304.5 meters. On the map-projected picture this distance is about 2 x 199 pixels, which gives us an image scale of 0.765 m/pix (for the full resolution picture). Similar exercise for C-D: not projected: 2 x 262 pix. @ 1.45 * 0.43 m/pix = 326.7 m projected: 2 x 221 pix ==> 0.74 m/pix The net result is that the scale of R1500822 is about 0.75 m/pix. ... or there is something wrong on all this bunch of numbers. :-) |
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#3
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Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1636 Joined: 9-May 05 From: Lima, Peru Member No.: 385 ![]() |
QUOTE (Tesheiner @ Aug 8 2005, 09:13 AM) The distance between points A-B in the non-projected picture is 2 x 105 pixels @ 1.45 m/pix = 304.5 meters. On the map-projected picture this distance is about 2 x 199 pixels, which gives us an image scale of 0.765 m/pix (for the full resolution picture). Hello Tesheiner, I cannot figure out about pixels. Are these pixeles from the picture. I suspect that each pixel is a very small point from the picture? After, translating it that each ones measures an distance of as an example, 0.765 meters? Rodolfo |
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#4
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Senior Member ![]() ![]() ![]() ![]() Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 ![]() |
QUOTE (RNeuhaus @ Aug 10 2005, 12:59 AM) Hello Tesheiner, I cannot figure out about pixels. Are these pixeles from the picture. I suspect that each pixel is a very small point from the picture? After, translating it that each ones measures an distance of as an example, 0.765 meters? Be careful. 0.765 is the calculated scale/resolution of the full-scale image R01500822. The example attached to my previous post is at half-scale - that's why you have those "2 x ..." on the equations. If you want to calculate distances based on that scale parameter (and assuming it is correct ![]() In case you want to do that on my example picture you should use 1.53 m/pix (2 x 0.765). |
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