Mercury-MESSENGER

[John Van Vliet]

--- edit ---

[danielj]

Unfourtanetelly it didn?t work.In Celestia 1.5.1,See below:

I think Celestia don?t support PNG files anymore.

[John Van Vliet]

--- edit ---

[John Van Vliet]

--- edit ---

[danielj]

.JPG is the termination of the picture I take of Celestia.
I changed the solarsys.ssc like this:

"Mercury" "Sol"
{
Texture "16k_map3.*"
Radius 2440

And the result is what you see in the pics I take from Celestia.Although it has 32.2 MB,the texture is ONLY 1k!

[danielj]

One picture near:

It appears some compatibility problem.This is Limit of Knowledge.When I put Normal,Mercury seem all black and featurless.

[cartrite]

for those interested the map is a mosaic of these *.IMG files from
ftp://pdsimage2.wr.usgs.gov/cdroms/mess ... S_2001/CDR
with a PixelResolution = 925.0 <meters/pixel>

Hey John,
Nice job. Did you use qnet to help assemble these?
cartrite

[symaski62]

SPICE NAIF

Code: Select all

"Mercury" "Sol"
{
   Texture "mercury.*"
   Radius 2440

    SpiceOrbit
    {
     Kernel "de406.bsp"   #  300Mo   -3000 & 3000 yaers
     Target "199"
     Origin "10" 
     BoundingRadius 1
     Period  0.2408467
    }

       SpiceRotation
    {
        Kernel              "pck00008.TPC"
        Frame               "IAU_MERCURY"
        BaseFrame           "eclipj2000"
        Period              1407.5088
    }
   Albedo            0.06
}

AltSurface "limit of knowledge" "Sol/Mercury"
{
   Texture "mercury.*"
   OverlayTexture "mercury-lok-mask.png"
}

[bdm]

edit solarsys.ssc and change the name for the Mercury map to "1k_map3.png"

Editing the core files isn't recommended.

We can also change the Mercury texture with a Modify directive in a small SSC file in the Extras directory with something like this:

Code: Select all

Modify "Sol/Mercury"
{
    Texture "16k_map3.*"
}


(I haven't done a "Modify" file before so I don't know if it will work. The intent is just to modify what we want to change and leave the rest as is.)

[danielj]

I think one of the problems is that it ISN?T A PERFECT FLAT PROJECTION CARTOGRAPHIC MAP!It is more or less irregular at the edges and I don?t know if it will work...

[John Van Vliet]

--- edit ---

[cartrite]

I see you were able to use mdis2isis. I was only taking a quick look and I didn't try because it looked like it wanted an IMA or LBL file. So I used pds2isis instead.
I see that you didn't use mdiscal? I'll have to take a closer look at these images.

QNET is part of ISIS3. I just started to use it to see if I can correct seams in CTX images. It's a pretty cool program. It allows you to create tie points to mend a lot of images together before cam2map is run. One of the features of this is a blinking tool. It allows you to shift one image a pixel at a time relative to the other while the two images "blink" back and forth to help with the alignment. It's still in development so the documentation is lacking and it's a little buggy. I was just wondering if you had used this before.
cartrite

[John Van Vliet]

--- edit ---

[danielj]

No,there is NO OTHER Mercury.ssc.
I give up,sorry...

[John Van Vliet]

--- edit ---