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ivac2:firdef_map_latlon [2013/12/04 01:10] 127.0.0.1 external edit |
ivac2:firdef_map_latlon [2015/06/07 22:10] splendor.bouman [The sectorfile latitude/longitude overflow bug] |
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| * sssss = seconds with maximum 3 decimal places (max 59.999) | * sssss = seconds with maximum 3 decimal places (max 59.999) | ||
| - | The predefined //<point>// elements are defined in the [[ivac2:firdef_points_xml|points.xml]] file. Use the id attribute to use a predefined //<point>// element. | + | The predefined //<point>// elements are defined in the [[ivac2:firdef_points_xml|points.xml]] file. Use the **ref** attribute to use a predefined //<point>// element. |
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| - | ===== Example ===== | + | === Example === |
| + | <code XML> | ||
| + | <point lat="N0504413" lon="E0043108"/> | ||
| + | <point lat="N0504421" lon="E0042601"/> | ||
| + | <point lat="N0504528" lon="E0042119"/> | ||
| + | </code> | ||
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| + | ===== Sectorfile latitude/longitude overflow bug ===== | ||
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| + | Keep a sharp lookout for a major bug in latitude and longitude coordinates which originate from IvAc v1 sectorfiles created with the old //sector file creator website//. Apparently IVAC v1 did not care about this error and just used the data regardless of the overflow value. | ||
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| + | You often see coordinates like: | ||
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| + | W0023260000 -> 002:32:60.000 | ||
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| + | Notice the overflow value in the seconds part: **60 seconds** ?! | ||
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| + | 60 seconds = 1 minute .... The maximum seconds value should be 59.999 seconds - so we have an overflow issue: | ||
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| + | 002:32:60.000 should be corrected to 002:33:00.000 | ||
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| + | You will also find coordinates like E0082339001 ending in '1'. These are also calculation errors and can be safely set to '0' | ||
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| + | E0082339001 -> E0082339000 | ||
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| + | ==== How to find any occurences of the bug? ==== | ||
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| + | Check the log file for errors in *log/ivac.log* for an overflow error similar to: | ||
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| + | ERROR Java2D Queue Flusher ... out of range:E0023260000 | ||
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| + | Simply use your text editor to search for the listed coordinate. | ||
| - | <point lon="N0543000000" lat="W0033535000"/> | ||
| - | <point lon="E0043127" lat="N0511038"/> | ||
| - | <point lon="E0043140" lat="N0511101"/> | ||
| - | <point ref=”REMBA”/> | ||
| - | <point ref=”EBBR-IAF-25L”/> | ||
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