RAOBF

toniloCoyote · 01-11-11, 06:51 PM

In order to confirm to some extent the measures of the masts I've been doing, I followed the Makman's trick (although without taking photos or counting pixels, but watching through the OBS and letting this task to MB-Ruler).

Although the results of measuring through the periscope (in this case, the OBS) are inaccurates, since the process is affected by many factors (inaccuracy and numeric rounding of the 3D projections over a plane, the roll of the ship, deformations due to the proportions of the screen resolution, etc.), is very interesting to be able to confirm, for example, that Makman and I had reason to assume that those vessels with Draught value = 0 were using their origin point as a waterline.

I think the test results confirm our assumption.
How have these tests been done?

1 - I have created a mission with two ships, one with a known draught value (NBB_Duilio) and another with a 0 value in its draught field. I've placed both of them at exactly 1Km from U-Boat and at 90º and 270º AOB, respectively. These values have been confirmed by the measuring tool of MissionEditor and by MB-Ruler (Note how useful this tool is for building missions).

2 - Looking through the OBS, I adjust the scale of MB-Ruler with the visual length of the boat, and I introduce the value of the length of the 3D model (from my list).

3 - Based on that scale, I measure the height from water level to the top of the mast, by means of MB-Ruler.

Be aware that in the case of NBB_Duilio the ship is too big to test it with x4 zoom and so, at x1 zoom the ship appears too small, and it's harder to measure, but the important thing is the measurement of NAMC_Penguin, because this ship has 0 as draught value in its .sim file.

Test Parameters:
- SH5 as in stock, with NO MODs.
- Screen res. 1280 x 960 (4:3)

NBB_Duilio
----------
Distance: 1Km - AOB: 90º
OBS Zoom: x1
3D Model Length: 239.135
Draught value in .sim file: 10.5
Calculated Mast Height: 47.92
Mast Height resulting from visual Test: 48.57 (diff. about 65cm)

NAMC_Penguin
------------
Distance: 1Km - AOB: 270º
OBS Zoom: x4
3D Model Length: 156.103
Draught value in .sim file: 0
Calculated Mast Height: 34.99
Mast Height resulting from visual Test: 35.272 (diff. about 28cm)

01-11-11, 06:51 PM	#16
toniloCoyote Bosun Join Date: Jan 2011 Posts: 66 Downloads: 12 Uploads: 0	In order to confirm to some extent the measures of the masts I've been doing, I followed the Makman's trick (although without taking photos or counting pixels, but watching through the OBS and letting this task to MB-Ruler). Although the results of measuring through the periscope (in this case, the OBS) are inaccurates, since the process is affected by many factors (inaccuracy and numeric rounding of the 3D projections over a plane, the roll of the ship, deformations due to the proportions of the screen resolution, etc.), is very interesting to be able to confirm, for example, that Makman and I had reason to assume that those vessels with Draught value = 0 were using their origin point as a waterline. I think the test results confirm our assumption. How have these tests been done? 1 - I have created a mission with two ships, one with a known draught value (NBB_Duilio) and another with a 0 value in its draught field. I've placed both of them at exactly 1Km from U-Boat and at 90º and 270º AOB, respectively. These values have been confirmed by the measuring tool of MissionEditor and by MB-Ruler (Note how useful this tool is for building missions). 2 - Looking through the OBS, I adjust the scale of MB-Ruler with the visual length of the boat, and I introduce the value of the length of the 3D model (from my list). 3 - Based on that scale, I measure the height from water level to the top of the mast, by means of MB-Ruler. Be aware that in the case of NBB_Duilio the ship is too big to test it with x4 zoom and so, at x1 zoom the ship appears too small, and it's harder to measure, but the important thing is the measurement of NAMC_Penguin, because this ship has 0 as draught value in its .sim file. Test Parameters: - SH5 as in stock, with NO MODs. - Screen res. 1280 x 960 (4:3) NBB_Duilio ---------- Distance: 1Km - AOB: 90º OBS Zoom: x1 3D Model Length: 239.135 Draught value in .sim file: 10.5 Calculated Mast Height: 47.92 Mast Height resulting from visual Test: 48.57 (diff. about 65cm) NAMC_Penguin ------------ Distance: 1Km - AOB: 270º OBS Zoom: x4 3D Model Length: 156.103 Draught value in .sim file: 0 Calculated Mast Height: 34.99 Mast Height resulting from visual Test: 35.272 (diff. about 28cm)