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DarkBASIC Professional Discussion / LOAD OBJECT in DBPro vs. DB, detecting the DB version

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EddieRay
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Posted: 7th Mar 2003 18:20
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When I load an object into DBPro, the OBJECT SIZE X() is exactly half the size returned by DB (same goes for Y and Z). What is the reason for this?

Is there any way in DB and DBPro to tell which version of DB the program is running in?
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EddieRay
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Posted: 7th Mar 2003 18:27
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Here's a test program and some files:

http://udel.edu/~ed/db/objtest

test1.dba displays a matrix that is wireframed and is 2000 by 2000 centered at the origin. Each tile in the matrix is 100 by 100. The test object (10unitcube.x) is loaded and positioned at 0,0,0.

Key commands are:

UP/DOWN = move object along the world X axis
LEFT/RIGHT = move object along the world Z axis
SHIFT = increase object scale
CTRL = decrease object scale

Use the mouse to pan around the object.

Thanks,

Ed

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EddieRay
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Posted: 7th Mar 2003 18:28
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Another note: I'm comparing the results of this program using DBLite and DBPro demo.

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Rob K
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Posted: 7th Mar 2003 21:56
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Yes, it seems that DBC and DBPro 3D units are different, this often means that you will need to rescale 3D objects and so on.

Also, if you have scaled the object then OBJECT SIZE X only returns the ORIGINAL size (before scalling). This has been fixed in Patch 4.

Current Project: Retro Compo. Entry.
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EddieRay
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Posted: 8th Mar 2003 03:28
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Okay... well the units being different is the main problem.

I don't really have a problem with OBJECT SIZE returning the original size of the object (before scaling)... that's the way it works in DBC.

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Rob K
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Posted: 8th Mar 2003 20:56
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If you wanted to check which version of a program it had been compiled on then you could check for the DBP runtime DLLs in the temp folder.

Current Project: Retro Compo. Entry.
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EddieRay
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Posted: 8th Mar 2003 23:29
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Actually, I wanted to be able to call "GET DB VERSION()" or something that would return "0" (for DBLite or DB without the Enhancement Pack), "1" (for DBv1.13 Enhanced" or "2" (for DBPro)... then you could make decisions in the code and make a program that would compile and work on either DBC or DBPro... assuming you knew the differences and could code for the specific nuances of either one (like the LOAD OBJECT is half size in DBPro thing).

Just a thought...

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IanM
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Posted: 9th Mar 2003 00:10
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There is a bug in DB Classic that doesn't exist in DBPro that you can use to work out which compiler you are using at runtime.

Everytime you use the POINT() function in DB Classic it forces a sync. Here's the code:

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