| T.R | Title | User | Personal Name
 | Date | Lines | 
|---|
| 2026.1 | DECpaint or DECscan for example | BSYBEE::EGOLF | John C. Egolf LKG2-2/T02 x226-7874 | Mon Jan 06 1992 08:00 | 20 | 
|  | 	Jacques,
	The two  easiest  ways are to either use DECpaint to create the
	backdrop (save it  as an X11 format, not DDIF) or to scan in an
	image  using DECscan and  convert  it  to  X11  (DECpaint  will
	convert .IMG to X11).
	Please note that the X11  backdrop  works  differently than the
	vector  format  backdrop.    There is  a  note  describing  the
	differences in the way it works.
	To  include  an X11 backdrop inyour DECmcc  map  file  add  the
	following:
 version 0		!Used for reference within map file
 domain jce		!Used for reference within map file
 background_pixmap sys$login:INTEROP_FLOOR.XBM  <--- This is added
 last_x 0.000000 last_y 3.569646 !Used for reference within map file
 | 
| 2026.2 | scrolling with backdrops | TOOK::CALLANDER | MCC = My Constant Companion | Wed Jan 15 1992 17:14 | 4 | 
|  |     please note that there are some scrolling limitations with scanned in
    images, but when we showed them at DECUS the reception was as you
    expected...excited.
    
 | 
| 2026.3 |  | SGWS::SID | Sid Gordon @ISO | Thu Jan 23 1992 05:35 | 12 | 
|  | >    please note that there are some scrolling limitations with scanned
>    images...
By this I assume you mean that the backdrop doesn't move with the map
when I scroll the map, and also doesn't appear in the navigation window.
Is there any way around these limitations?  How can I get my own personal
backdrop (which I make with DECpaint or scan in) to work as nicely as
the world and European maps in the demo?
Thanks,
Sid
 | 
| 2026.4 | prob is w/file format. | TOOK::MCPHERSON | Scientific progress goes 'Boink!' | Thu Jan 23 1992 08:59 | 16 | 
|  | >Is there any way around these limitations?  How can I get my own personal
>backdrop (which I make with DECpaint or scan in) to work as nicely as
>the world and European maps in the demo?
    The only way around this limitation (which is due to the fact that it's
    a static X-11 bitmap file) is to convert (don't ask me how) your X-11
    or DDIF images into the vector format used by the map backdrop files
    you mentioned. 
    Hopefully someone with experience in that area will chime in now, and
    tell you
	1) how to do that or 
	2) why it's impossible.
    regards, 
    /doug
 |