• Which the release of FS2020 we see an explosition of activity on the forun and of course we are very happy to see this. But having all questions about FS2020 in one forum becomes a bit messy. So therefore we would like to ask you all to use the following guidelines when posting your questions:

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Magnetic Deviation

R

Randall Smith

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Magnetic Deviation .

Is there a way inside of SU 2019 to correct for magnetic deviation when grabbing a Google map image without having to rotate the object.

Thanks

Randy
 
Hi Randy:

I posted a rudimentary work-around for the discontinuation of Geo-location features in older and freeware versions of Sketchup in the first few threads of this query:

https://www.google.com/search?source=hp&ei=JKr7XM-aF5CitQXtg5aoAg&q=site:www.fsdeveloper.com+GaryGB+Sketchup+Geo-location+work-around&oq=site:www.fsdeveloper.com+GaryGB+Sketchup+Geo-location+work-around&gs_l=psy-ab.12...1743.24745..27145...0.0..0.299.4861.36j10j1......0....1j2..gws-wiz.....0..0j0i131.-QFJPohrsYY

The issue that you are likely seeing in images exported (not screen captures) is that Google Earth outputs in a 'warped' EPSG:4326 GIS projection format rather than in a 'non-warped' EPSG:3857 GIS projection format.

Although my Sketchup Geo-location work-around cited in the query results above is useful for some purposes, a more comprehensive method would include re-projection in a GIS application or utility, of the ex: Path objects in KML format output by Google Earth in a 'warped' EPSG:4326 GIS projection format, into a 'non-warped' EPSG:3857 GIS projection format, before they are imported into Sketchup version-8 by the KML Tools plugin Ruby script ...as described in the threads cited above.

In most cases, one can just use the Rotated Rectangle plugin Ruby script to create a ex: building base 'Face' to be extruded ...as described in the threads cited above.


Terrain-type objects compiled by SDK Resample or SDK SHP2VEC require a 'warped' EPSG:4326 GIS projection format for background imagery

3D model objects (including SCASM / ASM or MDL G-Polys) require a 'non-warped' EPSG:3857 GIS projection format for background imagery.

[EDITED]

CAVEAT: 3D model objects intended to be converted into a "sloped flatten" (a terrain-type object) by Arnos' ModelConverterX (aka "MCX") require a 'warped' EPSG:4326 GIS projection format for background imagery, since, AFAIK, MCX does not peform an internal conversion of the imported 3D model from a 'non-warped' EPSG:3857 GIS projection format to a 'warped' EPSG:4326 GIS projection format for background imagery.

NOTE: Although SDK Resample and SDK SHP2VEC both require a 'warped' EPSG:4326 GIS projection format for Terrain-type source data, such objects are ultimately "un-warped" when draped onto FS terrain grid quad tile vertices / Area points when placed by the FS run time rendering engine ...to fit onto the 'curved' Earth of the FS 3D world. :pushpin:

[END_EDIT]

Hope this helps with what, IIUC, you may be endeavoring to achieve. :)

GaryGB
 
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