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Guest hefy_jefy

Accurate height for Helipad

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I had wanted a helipad for a Gmax jetty that I made some time ago. I came across the recent postings on the subject. I tried the .API code that had appeared here but it failed to compile in Groundmaker. I was more successful simply compiling Dicks "RhumbaPad improved helipad" with SCASM just modifying the size and coordinates in the .TXT file. (you will gather that I am more of a flyer than a codewriter!)Made everything work to my satisfaction, except that I only seemed to be able to specify the pad elevation in whole meters. The actual height I needed was 11.3ft I ended up with 4meters to prevent the skids disappearing. It looks OK and I could just modify the height of the Gmax object to suit, but I am sure it should be possible to specify the height of the "hardened surface" with better accuracy than one meter?Insights appreciated!Geoff

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Hi Geoff.I think you can hack the code to turn the refpoint scale from 1 to 0.1That makes the scale as 1/10th of a meter. Other scales would work. I think 0.03048 is 1/10th of a foot (?)Changing the scale will require you to change the scale of the other elements using that refpoint.Dick

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Hi Dick & Geoff..I've noticed that an objects height can also be controlled fairlyprecisely by calculating within the 'E= n' expression of the absRefPt opcode; i.e. RefPoint( 2 :Lights 1 %1 %2 E= [0.99865 * %11] V1= 10000 V2= 1000 )Where %11 must be an integer, however, the expression '[0.99865 * %11]'seems to allow adjusting elevation to a floating point value less thanthe integer-only requirement.(in the above, the 'greater-than/less-than' characters should be read as 'left-bracket/right-bracket' characters -- I don't seem to have control of my html tags here :-).)J.R.

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Thanks guys!I will give it a try, the scale thing seems easy (even for a non programmer).1/10 of a meter should be good enough.Geoff

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